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Physical insights into uranyl diffusion and sorption in bentonite: Theoretical and molecular dynamics study Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-24 Junfang Zhang, Dirk Mallants, Michael B. Clennell, David Dewhurst
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In silico investigation of herbicide release from intercalated layered double hydroxides Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-23 Sergio R. Tavares, Pedro Ivo R. Moraes, Alexandre A. Leitão
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Trisodium phosphate-loaded magnesium‑aluminum layered double hydroxides/oxidized-multiwalled carbon nanotubes self-assembled 2D-nanohybrid for designing a multifunctional smart epoxy nanocomposite Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-23 Saeede Rezaeifard, Taghi Shahrabi, Bahram Ramezanzadeh
In this study, a hybrid nanomaterial based on layered double hydroxides (LDH) and multi-walled carbon nanotubes (MWCN) was fabricated using a co-precipitation method. Trisodium phosphate (TP) was loaded into the designed nanocarrier to enhance the corrosion resistance of mild steel in 3.5 wt% NaCl media. Fourier transform infrared (FT-IR) spectroscopy, Raman, and X-ray diffraction (XRD) analyses were
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Discussion on “Design of acid-geopolymers based on clays by-products for methylene blue removal from wastewater” [Applied Clay Science 245 (2023) 107126] Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-23 Jean-Claude Bollinger, Khim Hoong Chu, Lotfi Mouni, Stefano Salvestrini
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Redox constraints on clay-sized rare earth element fractionation in weathered granite crust in the Chahe deposit, China Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-22 Song Xiao, Yan Liu, Wancang Zhao
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An experimental study on thermal relaxation of BCV bentonite Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-17 Jan Najser, David Mašín
Bentonites are considered as a suitable buffer material for the high-level radioactive waste disposal. The long-term stability of the hydromechanical properties of the bentonite barrier at high temperature is one of the key conditions for the proper functioning of the bentonite barrier. This paper presents an experimental study of the swelling pressure evolution of compacted samples of BCV bentonite
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Preparation and release of antibacterial Na-mica-4/chlorhexidine nanocomposites Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-16 Luís H. Oliveira, Idglan S. de Lima, Denise B. França, Alan I.S. Moraes, Maria G. Fonseca, Humberto M. Barreto, Santiago Medina-Carrasco, Josy A. Osajima, Edson C. da Silva-Filho, María del Mar Orta
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Molecular simulation approach for NO3− -N and NH4+-N sorption and desorption in the pores of palygorskite and sepiolite clay minerals Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-15 Christina Vasiliki Lazaratou, Dimitrios Papoulis, Dimitris V. Vayenas, Miroslav Pospíšil
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Microstructure and properties of halloysite nanotubes and modification methods: A comprehensive review Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-12 Liangjie Fu, Dikang Fan, Jie Zhang, Peiwen Ouyang, Jixing Fan, Huaming Yang
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Acid treatment and chemical modification of halloysite as a dual approach to design a catalyst for synthesis of 5-hydroxymethylfurfural Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-10 Samahe Sadjadi, Soheila Yaghoubi, Majid Heravi
5-Hydroxymethylfurfural is a key compound, which is obtained through acid-catalyzed conversion of saccharides. To devise a bio-based catalyst, halloysite nanoclay was utilized and its acidity was improved through a dual approach. More precisely, halloysite was first acid-treated for three distinct periods to give dealuminated samples. It was revealed that acid-treatment affected both acidity and textural
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The intercalation of zinc(II)-1,10-phenanthroline complexes in montmorillonite: An experimental and theoretical approach Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-10 Elena Castellini, Fabrizio Bernini, Beatrice Bighi, Daniele Malferrari, Adele Mucci, Marco Borsari, Carlos Pimentel, Claro Ignacio Sainz-Díaz
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Glauconite applications in agriculture: A review of recent advances Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-09 Evan Dasi, Maxim Rudmin, Santanu Banerjee
The soil fertility largely depends of balance of crucial nutrients, which affects the crop. Different fertilisers, including mineral fertilisers, are used to increase yield. Conventional fertilisers can deplete soil humus, causing increased emissions, soil salinisation besides other environmental hazards. Green fertilisers are needed to restore soil fertility and improve environmental conditions. Glauconite
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Biomass composite proton exchange membranes with high mechanical strength and proton conductivity based on chitosan and zwitterion-modified palygorskite Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-09 Didi Chu, Chun-Chun Huang, Wen-Chin Tsen, Chunli Gong
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The role of intraparticle slit pores in porosity development of sodium montmorillonite gels Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-09 W.P. Gates
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Effects of the combined use of kaolinite and dolomite as catalysts for the heavy oil oxidation Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-08 Yanqiu Dai, Xianghui Zhang, Runlin Pu, Wei Hu, Ling Wang, Huan Yang, Wenlin Yang, Qin Liu, Ruyan Wang, Zhongquan Li, Qian Feng
The oxidation of heavy oil (HOO) during In-situ combustion (ISC) within the porous media of reservoir rock matrix is a critical process. Although previous research has individually investigated the catalytic capabilities of clay minerals (e.g., kaolinite) and carbonate minerals (e.g., dolomite) in HOO, their combined influence remains unexplored. This study aims to investigate the impact of dolomite
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Advances in Layered double Hydroxide-based Materials for CO2 Electroreduction: A Comprehensive Review of recent Research Progress Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-08 Christine Mousty, Vanessa Prevot
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μ-Raman spectroscopy as a useful tool for improving knowledge of ancient ceramic manufacturing technologies Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-06 Chiara Germinario, Giuseppe Cultrone, Alberto De Bonis, Francesco Izzo, Alessio Langella, Mariano Mercurio, Luca Nodari, Christopher R. Vyhnal, Celestino Grifa
In recent decades, μ-Raman spectroscopy has become a powerful technique for studying ceramics, with the advantage of performing fast, reproducible and reliable analyses that provide effective information on ceramic technology. In the present paper, the potential of μ-Raman spectroscopy was evaluated by comparing the results of spectroscopic analyses with a wide range of conventional compositional and
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Preparation of modified halloysite nanotubes@Ag3PO4/polyacrylonitrile electrospinning membranes for highly efficient air filtration and disinfection Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-04-02 Jiayu Ma, Xu Jin, Yeyue Lu, Mengjuan Yang, Ximeng Zhao, Mengting Guo, Huijie Zhang, Xiuyan Li, Bin Wang
Particulate matters (PMs) and airborne bacteria are among the most severe indoor air issues due to their substantial implications for human health. Therefore, it was imperative to conduct a comprehensive investigation on air filtration materials with superior filtration performance and antibacterial properties. Here, the m-Hal@AgPO composite particles were prepared by using modified halloysite nanotubes
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Sodium acid pyrophosphate as a rheological modifier of clay-based tailings in saline water Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-29 Williams Leiva, Luis Ayala, Pedro Robles, Steven Nieto, César Castellón, Nelson Herrera, Ricardo Jeldres
This work analyzed the effect of sodium acid pyrophosphate as a rheological modifier of concentrated clay-based tailings in saline waters. The yield stress was obtained by the stress sweep method in logarithmic form using the vane-in-cup geometry. Oscillatory rheology complemented the information through amplitude and frequency sweep that correlated with the particle dispersion, evaluated by the Focused
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Sedimentation kinetics of kaolinitic and illitic clay: Impact of cation valence, ionic concentration, and water content Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-28 Yongjoon Choe, Jeongmin An, Jongmuk Won
Investigating the sedimentation of clay in saline water was extensively studied because of its wide applications in engineering. This study investigated the impact of cation valence, ionic concentration, and water content on sedimentation behavior of kaolinitic and illitic clays through batch sedimentation tests for the comprehensive understanding of clay particle association and elapsed time for the
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Sicilian clay sediments as precursor for alkali activated materials Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-28 Antonio Stroscio, Germana Barone, Ana Fernàndez-Jimenez, Isabella Lancellotti, Cristina Leonelli, Paolo Mazzoleni
In this work, we focused on the possibility of using clay sediments found in Sicily as precursors to produce alkali activated materials (AAMs) with properties comparable to those of traditional materials used in construction. Two different clays were selected: Plio-Pleistocenic marly clay (PP) and Numidian Flysh clay (NU) to test the use of sediments with and without calcite. AAMs were prepared using
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Halloysite nanotubes in biomedical applications: Recent approaches and future trends Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-28 Seyyed Behnam Abdollahi Boraei, Fatemeh Eshghabadi, Roghayeh Hosseinpour, Yasser Zare, Muhammad Tajammal Munir, Kyong Yop Rhee
In recent decades, nanomaterials have become an integral part of biomedical research. Halloysite nanotube (Hal) is one of the important nanomaterials, which has a key role in biomedical applications. Hal forms hydrogen bonds with biomaterials through siloxane and aluminol groups on the top of its surface. The wide range of Hal applications is attributed to its special properties, such as tubular structure
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Nano zero-valent iron/montmorillonite composite for the removal of Cr(VI) from aqueous solutions: Characterization, performance, and mechanistic insights Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-27 Yan Shi, Xin Wang, Songtao Zhong, Weiwei Chen, Changping Feng, Shipeng Yang
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New computational method for calculating of water droplet–clay contact angles: Based on molecular dynamics Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-26 Jie Meng, Changdong Li, Shuang Zhang, Helge Hellevang, Linyu Xiang
The measurement of the water contact angle () on the surface of clay minerals poses a significant challenge due to their microscopic particle sizes ranging from micrometers to nanometers and their extensive specific surface areas. We introduce an advanced computational framework based on molecular dynamics simulations. This framework leverages the coordination number () differences of the water molecules
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Thermal stability of artificial radiation-induced defects in kaolinite: Enhancing EPR dating protocol Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-25 Öykü Ataytür, Cécile Gautheron, Adriana Horbe, Thierry Allard
Kaolinite naturally contains radiation-induced electron defects in its structure induced by ionizing radiations and can be analyzed with electron paramagnetic resonance spectroscopy (EPR). They include the so-called A-center, which is crucial for geochronological applications due to its stability at the scale of geological periods. Indeed, previous studies have substantiated the thermal stability of
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Effects of magnesia and borax on the compressive strength and microstructure of phosphoric acid-activated metakaolin geopolymer Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-25 Zongbao Yang, Min He, Zhihua Ou, Qingguang Yang, Bin Liang, Yushuang He, Qiyu Fang
Phosphoric acid-activated geopolymer (PAG) is an environmentally friendly cementing material with broad application prospects in many fields. Currently, phosphoric acid-activated metakaolin geopolymer (PAMG) is the focus of extensive research. Most studies mainly focus on the effects of metakaolin (MK) activity, phosphoric acid (PA) concentration, mix proportion, and curing system on the compressive
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Preface of the Special Issue of Applied Clay Science “8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement” Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-21 Christophe Tournassat, Reiner Dohrmann, Jean-Charles Robinet, Marìa Victoria Villar
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Corrigendum to “Mimicking the cementation mechanism of ancient Roman seawater concrete using calcined clays” [Applied Clay Science 230 (2022) 106696] Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-19 Warda Ashraf, Ishrat Baki Borno, Rakibul I. Khan, Salman Siddique, Muhammad Intesarul Haque, Adhora Tahsin
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Ag2CO3 phases in nanocomposites with palygorskite and their effects on photocatalytic and antibacterial activities Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-19 Sara Ghazi, Claire Tendero, Noureddine Mezrioui, Lahcen Daoudi, Benaissa Rhouta, Francis Maury
Various nanocomposites based on AgCO loaded onto natural fibrous palygorskite (Pal) were elaborated by a simple precipitation route. Their composition ranged from metastable hexagonal β-AgCO nanoparticles immobilized on the surface of Pal microfibers to a mixture with stable monoclinic m-AgCO particles trapped in the tangle of Pal fibers. The choice of elaboration parameters enables to control the
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Influence of smectite clays' pores volume on isoniazid adsorption and release Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-18 Jessica de Carvalho Arjona, Carina Ulsen, Francisco Rolando Valenzuela-Diaz, Nicole Raymonde Demarquette
Clays have been extensively utilized in various fields due to their remarkable adsorption properties. In pharmaceutical and medical applications, they serve as potential excipients in pills. Emerging research demonstrated their effectiveness as vehicles for controlling drug release. Little has been elucidated, however, regarding the optimal clay characteristics for such applications. Therefore, this
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Layered double hydroxide for slowing selenium fertilizer release and improving selenium utilization efficiency in vegetables Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-16 Aihua Xiang, Yifan Li, Kun Liu, Xin Wang, Tuanliu Hu
Selenium (Se) is a beneficial plant micronutrient, and the application of Se fertilizers can promote plant growth and enhance the Se content in crops. However, traditional soluble Se fertilizers have low utilization efficiency of Se due to adsorption or leaching. Here, selenite (SeO) -intercalated Mg/Al layered double hydroxide (Se-Mg/Al) for SeO slow-release was synthesized by co-precipitation and
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Tailored thymoquinone intercalated Layered Double Hydroxide (LDH) nanocomposites to accelerate mineralization for enhanced osteogenesis Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-16 Grace Felciya Sekar Jeyakumar, Deebasuganya Gunasekaran, Nivethitha Panneerselvam Manimegalai, Uma Tiruchirapalli Sivagnanam
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Development of Illite modified/Rh2O3 for electrochemical, sensor, photocatalysis and antioxidant studies Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-08 M. Mylarappa, S. Kantharaju, V. Suchithra, H.V. Dakshayini, S. Chandruvasan, K.S. Harisha, M. Meghana, D.M.K. Siddeswara
The present work revealed the development of illite modified/RhO nanocomposite through the reflux method. The modification of illite was achieved using CTAB (Cetyltrimethylammonium bromide) as a surfactant. The prepared nanocomposite was subjected to characterize X-ray diffractometer (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDAX), thermogravimetric analysis (TGA)
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Phosphorus doped carbon coated palygorskite interlayer and its polysulfides fixation behavior Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-08 Kailong Zhang, Luanhui Wu, Chao Zhang, Qidong Yang, Wei Qian, Jiadong Zhang, Guang Hu, Weiwei Hu, Yazhou Kong, Zhihui Wang, Liangbiao Wang, Gaoran Li, Wenlong Cai
Phosphorus doped carbon coated palygorskite (Pal@P-C) was prepared as an interlayer material for conquering polysulfides in Lithium–Sulfur (LiS) batteries via one simple method. The process was carried out in inert furnace by using palygorskite and triphenylphosphine as starting materials. The phosphorus doped carbon content of the composite could be adjusted by controlling the proportion of raw materials
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Low-cost and high-safety montmorillonite-based solid electrolyte for lithium metal batteries Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-07 Shusen Zhou, Zhangkuo Han, Xiaofei Wang, Xin Liu, Huiying Hao, Jie Xing, Jingjing Dong, Hao Liu, Libing Liao
Composite solid-state electrolyte have good interfacial compatibility and mechanical properties, but their safety (such as easy to catch fire) and economic cost are still problems. In present work, an composite solid-state electrolyte was prepared by inserting poly(vinylidene fluoride)-based polymer electrolyte matrix into the interlayer of a low cost clay mineral-montmorillonite. The composite electrolyte
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Protecting Mg-sites from hydration by embedding magnesium-aluminium layered double hydroxide in halloysite and using as pickering catalysts in Baeyer-Villiger oxidation Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-07 Jiangtao Peng, Haoyang Qu, Jiwen Si, Shucheng Li, Longxin Zhao, Yuxuan Wang, Qing Liang, Wei Zhang, Cundi Wei, Wenqing Li, Shiding Miao
A facile strategy was developed via thermal treatment to get hierarchically structured magnesium-aluminium layered double hydroxide (MgAl-LDH) selectively loaded on the inner and external surfaces of halloysite nanotubes, respectively. The loaded MgAl-LDH was found to have active centers for Baeyer-Villiger (BV) oxidation that was protected from hydration by embedding in halloysite lumens. The BV oxidation
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Reactive transport modeling of diffusive mobility and retention of TcO4− in Opalinus Clay Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-07 Ping Chen, Luc R. Van Loon, Steffen Koch, Peter Alt-Epping, Tobias Reich, Sergey V. Churakov
Tc-99 has drawn widespread concern because of its long half-life, high fission yield and high mobility in research of radioactive waste disposal and environmental remediation. TcO through-diffusion experiments in Opalinus Clay (OPA) were performed under air and under argon No noticeable Tc-breakthrough was observed for over one year while the total Tc concentration in the source reservoir was steadily
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Exploring two regimes of water mobility in unsaturated expansive clay using NMR relaxometry Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-07 Pablo Eizaguirre, Anh Minh Tang, Benjamin Maillet, Rahima Sidi-Boulenouar, Jean Talandier, Jean-Michel Pereira, Minh Ngoc Vu, Baptiste Chabot, Patrick Dangla, Michel Bornert, Patrick Aimedieu
The hydration behaviour of unsaturated expansive clays, crucial for applications such as radioactive waste management, remains a challenging and incompletely understood phenomenon given the complexity of characterizing their pore network dynamics upon water absorption. The evolution of porewater populations, distinguished as immobile adsorbed water attached to the clay particles surface and capillary
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Implementing light elements detection and quantification in aluminosilicate materials using a Low-Z total-reflection X-ray fluorescence spectrometer Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-05 Ignazio Allegretta, Dragic Krstajic, Peter Wobrauschek, Peter Kregsamer, Dieter Ingerle, Christina Streli, Carlo Porfido, Roberto Terzano
Total-reflection X-ray fluorescence (TXRF) is a well-established atomic spectroscopy technique used for the elemental characterization of different kinds of matrixes in several fields. Previous works demonstrated its applicability for the elemental quantification of aluminosilicates and, in particular, clays. However, one of the limits of the previously developed methods was the detection and quantification
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Determination of the sorption mechanisms of sodium-alkalinized metakaolin-based geopolymers Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-04 Anıl Can Yıldırım, Kanako Toda, Takumi Saito
Geopolymers (GP) are ceramic-like materials that can potentially be used in environmental applications to immobilize radionuclides (RNs) or toxic compounds. Although the literature reports that the sorption potential of a GP is influenced by its sorption capacity, especially for GPs produced from metakaolin (MK), the RN sorption mechanisms of these materials must be comprehensively studied together
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An overview about synthetic high charge micas and their uses Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-04 Luís H. Oliveira, Denise B. França, Alan I.S. Moraes, Santiago Medina-Carrasco, Maria G. Fonseca, Josy A. Osajima, Edson C. da Silva-Filho, María del Mar Orta
Synthetic micas are materials with interesting properties that combine high charge (high cation exchange capacity) with swelling capacity. Among the various methods for synthesizing this clay, the “NaCl-melt method” is the most widely used, producing a material with excellent crystallinity. Furthermore, synthetic micas are also susceptible to modifications with a wide range of compounds, mainly organic
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A review of geopolymer membrane for water treatment Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-01 Nurlina Nurlina, Jeesica Hermayanti Pratama, Agung Bagus Pambudi, Zeni Rahmawati, Subaer Subaer, Mohd Mustafa Al Bakri Abdullah, Gusrizal Gusrizal, Hamzah Fansuri
Geopolymer has gained enormous attention in recent years owing to its ease of preparation, low-cost process, and excellent properties. These superiorities result in an extensive application of geopolymers, one of them being membrane technology for wastewater treatment. This review explains the development of geopolymer membrane modification aiming at the optimum performance in wastewater filtration
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Halloysite clay nanotubes: Innovative applications by smart systems Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-01 Mohammad Fahimizadeh, Li Wen Wong, Zhang Baifa, Samahe Sadjadi, Sheik Ambarine Banon Auckloo, Khanisya Palaniandy, Pooria Pasbakhsh, Joash Ban Lee Tan, R.K. Raman Singh, Peng Yuan
Halloysite clay nanotubes (HNTs) are unique porous aluminosilicates that have assumed the role of a multiplex, adaptable, low-cost, and sustainably sourced nanocomposite across a vast array of applications. HNTs have presented diverse opportunities to researchers from different fields, leading to substantial advances in the applications and innovative uses of HNT as a multifaceted nanocomposite in
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CeO2 nanoparticles supported on 2D nanostructured layered double hydroxide as a nanocatalyst: Facile synthesis, characterization and catalytic activity Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-03-01 Jagat Singh Kirar, Neeraj Mohan Gupta, Kailash Chandra, Hitesh Kumar Vani, Yogesh Deswal, Savita Khare
The oxidation of cyclohexane employing tert-butyl hydroperoxide provides an appealing alternative to the present commercial method of manufacturing cyclohexanone and cyclohexanol (KA oil), which are important ingredients in the manufacture of nylon. CeO nanoparticles supported on 2D nanostructured layered double hydroxide nanocatalyst were developed as an effective, stable, and reusable heterogeneous
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Study on corrosion and wear resistance of Ni-Zn-Al hydrotalcite film on Aluminum alloy surface Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-29 Ziheng Qi, Zhuangzhuang Xiong, Xinyu Sun, TianQi Ma, Wenhui Zhang, Guixiang Wang
The intrinsic micropores in porous anodic oxidation (PAO) aluminum often result in poor long-term corrosion resistance and wear resistance. Herein, a novel highly corrosion-resistant and wear-resistant NiZnAl-LDH was synthesized on the surface of anodized aluminum through a simple hydrothermal method. The impact of synthesis parameters, including pH value, reaction temperature, and growth time, on
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Pore-scale mechanisms underlying the behavior of enhanced bentonites exposed to aggressive inorganic solutions Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-29 Nicolò Guarena, Andrea Dominijanni, Mario Manassero
Understanding the mechanisms that control the hydraulic and semipermeable membrane behavior of enhanced bentonites (EBs), which comprise natural montmorillonite amended with polymers or organic compounds, is important for assessing the long-term performance of engineered barriers manufactured from these materials. Accordingly, the available experimental evidence for the hydraulic and semipermeable
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Unique reaction of layered double hydroxides with 4-chlorobutyric acid Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-29 Aki Hayashi, Hirokazu Nakayama
Layered double hydroxides (LDH), namely, carbonate-type MgAl-layered double hydroxides (LDH2-CO and LDH3-CO with an Mg/Al ratios of 2 and 3, respectively), and nitrate-type MgAl layered double hydroxides (LDH2-NO) with an Mg/Al ratio of 2, were reacted with 4-chlorobutyric acid. Typically, the reaction results in the exchange between anionic 4-chlorobutyric acid and the anions in the interlayer, which
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Construction of hydrophobic core-shell flame retardant: A novel strategy towards reducing fire hazards and reinforcing mechanical properties of polypropylene Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-26 Jie Hu, Jia-Yan Hu, Yu-Jie Chen, Liu Tan, Qian Luo, Wen-Juan Yan, Zhe-Hong Tang, Juan-Juan Zhang, Lei Wang, Nai-Liang Wang, Sheng Xu
In order to expand the application of polypropylene (PP) in the field of systems and overcome the shortcomings of layered double hydroxide (LDH) in flame retardancy and smoke suppression, a novel organic and inorganic hybrid core-shell type flame retardant was designed and prepared in this work. The flame retardant took LDH as the core, intumescent flame-retardant (IFR) generated by the condensation
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Engineering binary-network structured montmorillonite/silica composite aerogels with improved mechanical strength as water-resistant thermal insulators Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-24 Xiaowu Wang, Zhi Li, Min Hu, Qiong Liu, Ming Li, Xudong Cheng, Xiaoxu Wu
Developing clay-based aerogel composites with integrated high strength, low thermal conductivity, and hydrophobicity remains a great challenge. Here, binary-network structured montmorillonite/silica composite aerogels (CSACs) with improved mechanical strength were engineered via the in-situ growth of silica networks in the montmorillonite aerogel scaffolds. Tunable density (0.065–0.149 cm/g) and porosity
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Understanding the thermal activation behavior of montmorillonite and kaolinite at atomic level by ReaxFF molecular dynamics simulations Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-23 Wei Ge, Hengheng Mao, Jun Chen, Fanfei Min, Hui Liu, Shaoxian Song
The origin of the difference in activity between calcined kaolinite and calcined montmorillonite is not well understood. Herein, reactive force field molecular dynamic (ReaxFF MD) simulations were adopted to study the thermal activation behavior of montmorillonite and kaolinite. It was found that during the calcination process, the removal of hydroxyl groups from kaolinite and montmorillonite not only
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Structural defect-induced white light emission from synthetic Zn-rich trioctahedral smectite Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-23 Dhani Soren, Gayatree Mehena, Jiban K. Das, J.N. Behera, Puspalata Pattojoshi, Pratap Kumar Deheri
In this research work, Al substituted by Mg and Zn atoms in smectites (Sm) of the formula [NaMgZnLiSiO(OH)] were synthesized. Its structural and intrinsically highly photoluminescent (PL) properties were reported. The complex distributions of Mg and Zn atoms were observed in both octahedral and tetrahedral sites in the synthesized Sm (as evident with XRD, XPS, and ESR studies). The visible white light
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Clay minerals modified nickel boride for electrochemical supercapacitor electrode application Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-22 Fan Yang, Xue-Jing Ma, Jing-Lei Yang, Jun-Hu Liu, Bi Chen, Xin-Yu Liu, Kang Yang, Wei-Bin Zhang
Nickel boride has attracted great interest in the field of energy storage due to its superior electrochemical performance, However, particles agglomeration and poor electability have limited its wider application. Clay minerals with high specific surface area and excellent wettability can reduce the agglomeration of particles. We synthesized eight kinds of composites NiB@montmorillonite (NiB@Mt), NiB@chlorite
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Phosphorus-modified metakaolin as a soil amendment for immobilizing REEs and reducing their bioaccumulation Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-22 Shiqin Long, Jiangxin Xiang, Hongbo Li, Shoushu Wei, Qingze Chen, Runliang Zhu
Rare earth elements (REEs) as emerging soil contaminants have attracted increasing concerns. Efficient, economical, and eco-friendly soil amendments for REEs-contaminated farmland in-situ remediation are exigently needed. Herein, phosphorus-modified metakaolin (MK-P) was synthesized as a soil amendment to immobilize REEs in soil and reduce their bioaccumulation in water spinach (). MK-P was developed
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Effective adsorption and recovery of rare earth elements from wastewater by activated talc Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-22 Wenyi Zhang, Chen Li, Qian Xu, Kaibo Hu, Hao Chen, Yucheng Liu, Yinhua Wan, Juanjuan Zhang, Xuewei Li
The extraction process of ion-type rare earth mines generates a significant amount of wastewater containing rare earth elements (REE) with low concentration. It is of great significance to recover REE from the wastewater in order to reduce environmental toxicity and improve the utilization efficiency of rare earth mining. We propose a strategy to enhance the adsorption and enrichment of REE in wastewater
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Intelligent response organo-montmorillonite/Fe3+-alginate/poly (N-isopropylacrylamide) interpenetrating network composite hydrogels for controlled release of water-insoluble pesticides Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-21 Hongcai Wang, Xiuqiong Chen, Cuiyu Gong, Yanan Bu, Ting Wu, Huiqiong Yan, Qiang Lin
Enclosing the pesticide in a carrier and releasing it based on environmental stimuli is proved to be a viable strategy for addressing pesticide losses and mitigating environmental contamination. Here, an interpenetrating network (IPN) composite hydrogels (OMt/Alg/PNIPAm) with light and temperature responses was prepared by the incorporation of clay material, organo-montmorillonite (OMt), via the free-radical
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Use of an ion-exchange adduct of synthetic hectorite and chiral copper(II) complex as a packing material for chromatographic resolution Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-20 Akihiko Yamagishi, Kenji Tamura, Masumi Kamon, Jun Yoshida, Hisako Sato
A spherically shaped particle of synthetic hectorite (denoted as Na-HEC) was ion-exchanged with a divalent Cu(II) complex, [Cu(-oxa)] (-oxa 2,2′-isopropylidene-bis(4-phenyl-2-oxazoline)). The material is denoted as [Cu(-oxa)]/HEC. A column for high performance liquid chromatography (HPLC) was prepared by packing 4.0 g of [Cu(-oxa)]/HEC into a stainless tube (25 cm × 0.4 cm (i.d.)). When tris(acety
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From clays and clay minerals to geopolymers: Looking to the future Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-19
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Reappraisal of red clays in porcelain stoneware production: Compositional and technological characterization Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-17 Riccardo Fantini, Sonia Conte, Alessandro F. Gualtieri, Michele Dondi, Francesco Colombo, Mattia Sisti, Chiara Molinari, Chiara Zanelli, Rossella Arletti
The disruption of the supply chain of ball clays from Donetsk basin, Ukraine, has demonstrated that relying on domestic raw materials is strategic and vital for the ceramic tile production. However, the use of local raw materials has in most cases led to the increase in the impurities, namely iron, content of porcelain stoneware batches. A case-study is presented about the Italian tile district located
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Micromechanical properties of geopolymers with different calcined clay precursors Appl. Clay. Sci. (IF 5.6) Pub Date : 2024-02-17 N. Werling, R. Schwaiger, F. Dathe, F. Dehn, K. Emmerich
Geopolymers and supplementary cementitious materials (SCM) are potential substitutes for ordinary Portland cement (OPC). Calcined common clays appear to be well suited as raw materials for the production of geopolymers. Due to the multiphase composition of common clays, it is necessary to study geopolymers first, which are prepared of individual calcined clay minerals. Nanoindentation was used to investigate