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Corrigendum to: ‘PGM nanoparticle-based alumina aerogels for three-way catalyst applications’ [Catal. Commun. 172 (2022) 106547] Catal. Today (IF 5.3) Pub Date : 2024-03-12 Ann M. Anderson, Bradford A. Bruno, Joana Santos, Patrick J. Barry, Mary K. Carroll
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Rational designing of TiO2-X@Cs3Bi2X9 nanocomposite for boosted hydrogen evolution Catal. Today (IF 5.3) Pub Date : 2024-03-08 Anna Pancielejko, Magdalena Miodyńska, Hanna Głowienke, Anna Gołąbiewska, Emilia Gontarek-Castro, Tomasz Klimczuk, Mirosław Krawczyk, Grzegorz Trykowski, Adriana Zaleska-Medynska
Halide perovskites are known as compounds possessing interesting properties, including visible light-induced photoactivity, however, they suffer from instability. Herein, a novel technique for reducing the decomposition rate of halide bismuth-based perovskites CsBiX (X=I, Br, Cl) in the aqueous environment by combining with different types of TiO (anatase TiO-I, anatase/rutile TiO-B, and rutile TiO-C
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Reaction induced Ni/MgTi2O5 interface promotes the resistance to sintering and oxidation in auto-thermal reforming of acetic acid Catal. Today (IF 5.3) Pub Date : 2024-03-08 Qi Chen, Fuxia Liao, Chenyu Ding, Xiaomin Hu, Yingchun Xu, Peng Cheng, Zhanfeng Zheng, Lihong Huang, Ning Wang
Hydrogen can be produced from acetic acid (HAc) derived from renewable biomass oil via auto-thermal reforming (ATR), which is conducive to upgrading current energy supply in a carbon-neutral and clean way. However, deactivations caused by carbon deposition, sintering, and oxidation have been long-standing obstacles for nickel-based catalysts. To address these challenges, we synthesized a series of
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Corrigendum to “Biowaste carbon supported manganese nanoparticles as an active catalyst for the selective hydrogenation of bio-based aldehydes” Catal. Today 408 (2023) 127–138 Catal. Today (IF 5.3) Pub Date : 2024-03-07 Naina Sarki, Anand Narani, Ganesh Naik, Deependra Tripathi, Suman L. Jain, Kishore Natte
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Bromine generation on various photoanodes: α-Fe2O3, Fe2TiO5, WO3 and TiO2 Catal. Today (IF 5.3) Pub Date : 2024-03-06 Tomáš Imrich, Michael Neumann-Spallart, Josef Krýsa
The competitive photoelectrochemical reactions bromide . water (photo)oxidation in an acidic medium (pH = 1.7) were studied on four semiconducting oxides hematite (α-FeO), pseudobrookite (FeTiO), tungsten trioxide (WO) and titanium dioxide (TiO). The experiments were carried out with thin film electrodes on conductive substrates (FTO/glass) in a vigorously stirred batch reactor under AM1.5 irradiation
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Surface Immobilization Mechanisms of Cobalt ions on Hydroxyapatite catalyst supports Catal. Today (IF 5.3) Pub Date : 2024-03-06 Corentin Reynaud, Cyril Thomas, Dalil Brouri, Yannick Millot, Antoine Miche, Guylène Costentin
Cobalt deposition in an excess of solution was used to design Co-modified hydroxyapatite materials with various Co loadings and controlled dispersion. It is rationalized how the properties of hydroxyapatite supports (more or less stoichiometric compositions, nanorod or platelet morphologies and crystalline (100) zig-zag termination or non-apatitic hydrated external layer), influence the immobilization
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Emerging contaminants and pathogenic microorganisms elimination in secondary effluent by graphitic carbon nitride photocatalytic ozonation processes Catal. Today (IF 5.3) Pub Date : 2024-03-06 Eryk Fernandes, Pawel Mazierski, Magdalena Miodyńska, Tomasz Klimczuk, Adriana Zaleska-Medynska, Joana Oliveira, Ana Miguel Matos, Rui C. Martins, João Gomes
The complexity of water contaminants, both chemical and biological requires an efficient and feasible treatment alternative. Herein, the photocatalytic ozonation treatment using graphitic carbon nitride catalysts was effectively applied for the elimination of a mixture of targeted chemical contaminants, and both bacteria and Human polyomavirus JC (JC virus) in real secondary wastewater. The exfoliation
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Dehydration and reduction reactions favored under medium pressure and temperature assisted by photocatalysis Catal. Today (IF 5.3) Pub Date : 2024-03-05 Arthur Flory, Frederic Dappozze, Chantal Guillard
The impact of UV irradiation on the catalytic transformation of dihydroxyacetone molecule (DHA) has been investigated under inert atmosphere, medium pressure (5 Bars) and temperature (<=120°C) in presence of commercial anatase TiO samples (UV100 and A100), rutile TiO (R100) and mixture of anatase and rutile phase (P90). In absence of light, the main products formed are pyruvaldehyde and lactic acid
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Enzymatic Synthesis and Biological Evaluation of Glycolipids as Potential Antibacterial, Antibiofilm and Antiquorum Sensing Agents Catal. Today (IF 5.3) Pub Date : 2024-03-04 Almudena Perona, Pilar Hoyos, Luis Apaza Ticona, Cecilia García-Oliva, Alejandro Merchán, María J. Hernáiz
Glycolipids are becoming as important class of biosurfactants with relevant antibacterial and antibiofilm properties. In this study, the enzymatic synthesis of glycolipids is reported, achieved through the regioselective transesterification of different sugars (fucose, arabinose, fructose, glucose, mannose, galactose, -acetylglucosamine, -acetylgalactosamine and maltose) with vinyl laurate. The biocatalyst
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Sorption-enhanced Fischer-Tropsch synthesis – Effect of water removal Catal. Today (IF 5.3) Pub Date : 2024-03-02 Lj. Gavrilović, S.S. Kazi, A. Oliveira, O.L.I. Encinas, E.A. Blekkan
The Sorption-Enhanced Fischer-Tropsch synthesis (SEFTS), with water removal by means of a solid sorbent, has been demonstrated for the first time experimentally. Commercial water sorbents (Zeolites type 13X and 4 A) were thoroughly characterized to determine water sorption capacity at relevant temperatures (100–250°C) as well as multicycle stability after 100 cycles at 210°C. The adsorption capacity
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Tuning the interfacial interactions between alumina support and pseudo single atom platinum-tin catalytic sites for heavy naphtha reforming Catal. Today (IF 5.3) Pub Date : 2024-03-02 Rajesh Belgamwar, Kotni Santhosh, G. Valavarasu, Pradip Sarawade, Vivek Polshettiwar
Heavy naphtha reforming, a crucial downstream process in oil refineries for improving the octane number of the gasoline feedstock, requires expensive Pt metal catalysts and it accounts for 60% of the catalyst cost. These conventional Pt nanoparticle sizes range between 1 – 2 nm and thus, only ≈ 80% of the Pt atoms of the particle are available for the catalytic reactions. In this work, we hypothesized
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Computational Study of Oxygen Evolution Reaction on Flat and Stepped Surfaces of Strontium Titanate Catal. Today (IF 5.3) Pub Date : 2024-03-02 Maksim Sokolov, Yuri A. Mastrikov, Dmitry Bocharov, Veera Krasnenko, Guntars Zvejnieks, Kai S. Exner, Eugene A. Kotomin
Oxygen evolution reaction (OER) is reconciled with the bottleneck in hydrogen production via photo- or electrocatalytic water splitting. One of the remedies to overcome this shortcoming is to develop catalytically efficient anode materials. Strontium titanate (STO) is a potential candidate for the OER by referring to recent experimental reports on enhanced photocatalytic activity of faceted nanoparticles
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Acid treatment enhances the methane combustion activity of LaFeO3 perovskite catalyst Catal. Today (IF 5.3) Pub Date : 2024-03-02 Xiaochao Wu, Mengyang Li, Ahed Abouserie, Anne Frommelius, Gianluca Dalfollo, Thorsten Ohlerth, Ulrich Simon
The catalytic combustion of methane has gained much attention as a sustainable technology, due to concerns about the environmental impact of unburnt methane emissions from the natural gas vehicles. Researchers have explored alternatives to precious metal catalysts for methane combustion, with a focus on perovskite oxides known for their excellent activity and sintering-resistance capacity. In this
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Porous CN@MOF derived N, S-doped hierarchical framework carrying Co3Fe7/Fe0.8Co0.2S heterojunction: An efficient bifunctional cathode catalyst for Zn–air battery Catal. Today (IF 5.3) Pub Date : 2024-03-02 Keyu Chen, Jilan Long, Guangliang Zhou, Li Kang, Fei Zhao
The exploiting of bifunctional transition metal electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is of significance for the commercialization of rechargeable zinc-air batteries (ZABs). Herein, the N and S atoms-doped hierarchical carbon framework hosting the CoFe/FeCoS heterojunction is synthesized by employing porous g-CN as framework and spacer, and
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Olive mill waste bio-based catalyst application in advanced oxidation processes for wastewater treatment Catal. Today (IF 5.3) Pub Date : 2024-03-02 Kleper O. Rocha, Francisco Brandão, C.átia Mendes, Maria G.V.S. Carvalho, Paweł Mazierski, Adriana Zaleska-Medynska, João Gomes, Rui C. Martins, Eva Domingues
This study explores the physicochemical capacities of solid wastes from olive oil mills (olive stone, OS, and olive pomace, OP), in obtaining catalysts to be applied in heterogeneous Fenton and persulfate processes. Through physicochemical treatments and the impregnation of iron by hydrothermal deposition and wetness impregnation (WI) different catalysts were produced, tested and characterized. The
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Enhancing photocatalytic H2 production and dye degradation: Comparative analysis of gold reduction techniques on Au/TiO2 nanocomposites Catal. Today (IF 5.3) Pub Date : 2024-03-01 Jessica Piedra-López, Lina A. Calzada, P. Guerra-Blanco, J. Ortíz-Landeros, I. Elizalde-Martínez, Miguel A. Valenzuela, Elim Albiter
This study compares the impact of two reduction techniques, thermal reduction (TR) and photocatalytic reduction (PR), on Au/TiO photocatalysts synthesized using the deposition-precipitation with urea method. Characterization methods, including temperature-programmed reduction, UV-Vis diffuse reflectance spectroscopy, electrochemical assessments (open-circuit potential and linear sweep voltammetry)
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A novel Cr2O3/Cr-doped g-C3N4 photocatalyst with a narrowed band gap for efficient photodegradation of tetracycline Catal. Today (IF 5.3) Pub Date : 2024-02-28 Sen Wang, Hong Chen, Qing Lin, Qian Lu, Wei Lv, Can Wang, Linhao Yu, Yingying Li, Yongdan Li
Two significant strategies for enhancing photocatalyst performance are heterojunction construction and band gap modulation, but up until now, these methods have typically been treated separately. This work examines a strategy combining the heterojunction with a mid-gap state to prepare a novel CrO modified Cr-doped g-CN photocatalyst for antibiotics degradation. According to the characterization results
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Overview of the catalytic properties of bulk unsupported and supported group 4–5-6 oxides Catal. Today (IF 5.3) Pub Date : 2024-02-28 Israel E. Wachs
The number of active sites (Ns), surface chemistry (redox, acid, base) and TOF values were compared for bulk one component oxides, bulk mixed metal oxides and supported metal oxides. The number of active sites was based on CHOH chemisorption. The surface chemistry was based on CHOH-TPSR and steady state CHOH oxidation. The specific TOF values were based on the steady state methanol oxidation activity
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Sulfured NiMo catalysts on TiO2-Nb2O5 nanocomposites for efficient hydrodesulfurization performance Catal. Today (IF 5.3) Pub Date : 2024-02-28 Luis J. Rodríguez-Castillo, Franklin J. Méndez, Jorge A. García-Macedo, Issis C. Romero-Ibarra, Lina A. Calzada, Elim Albiter, Felix Cancino-Trejo, Carlos E. Santolalla-Vargas, Elizabeth Gómez, Victor Santes
The implementation of increasingly stringent environmental regulations has increased the demand for more active catalysts in hydrotreating. This study proposes the synthesis, characterization, and evaluation of bimetallic NiMo catalysts supported on TiO-NbO nanocomposites for dibenzothiophene hydrodesulfurization. Samples containing 3, 5, and 10wt.% Nb were synthesized to examine the influence of Nb
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Hydrophobic modification of zeolite-supported platinum catalysts for complete oxidation of toluene Catal. Today (IF 5.3) Pub Date : 2024-02-28 Shengze Zhao, Kai Fan, Jian Li, Ye Ma, Fan Yang, Xiangju Meng, Feng-Shou Xiao
Zeolite-supported noble metal nanoparticles have been reported as active catalysts for complete oxidation of volatile organic compounds (VOCs) due to the combination of advantages of zeolite supports and noble metal species, where introducing more Al species (reduction of SiO/AlO ratios, SAR) and increasing hydrophobicity for zeolite supports are favorable for the complete oxidation of VOCs. Unfortunately
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Rational process design for the efficient oxidation of crude HMF-solution using AuPd/C catalysts Catal. Today (IF 5.3) Pub Date : 2024-02-28 Dominik Neukum, Erisa Saraçi, Dominik Wüst, Ajai Raj Lakshmi Nilayam, Shweta Sharma, Jan-Dierk Grunwaldt
The oxidation of 5-(Hydroxymethyl)furfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is of high interest for the production of renewable monomers. To achieve a cost-efficient, sustainable process for the large-scale production of FDCA, it is important to use the as-synthesized crude HMF-solution without extensive purification steps. In this work, we present the direct oxidation of crude HMF-solution
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H2 production based on a ternary mixture of commercial CuO-NiO-TiO2 in a solar pilot plant Catal. Today (IF 5.3) Pub Date : 2024-02-28 J.G. Villachica-Llamosas, A. Ruiz-Aguirre, G. Colón, J. Peral, S. Malato
Glycerol is a by-product in biodiesel production (in the range of g·L), so its photoreforming by photocatalysis is a way of valorising it. TiO in photocatalysis has been widely studied, although its efficiency is limited by the high energy band gap, and the electron-hole recombination. Its combination with different semiconductors should improve charge separation, extending also the absorption from
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O2 and CO2 assisted oxidative dehydrogenation of propane using ZrO2 supported vanadium and chromium oxide catalysts Catal. Today (IF 5.3) Pub Date : 2024-02-28 Rajvikram Singh, Sudhir Charan Nayak, Raghvendra Singh, Goutam Deo
Zirconia supported vanadium oxide (vanadia) and chromium oxide (chromia) catalysts of 1 to 3wt.% of V or Cr were prepared, characterized, and tested for the oxidative dehydrogenation (ODH) of propane (CH) with O and CO. Characterization results reveal that 2.5% metal loading is in slight excess of monolayer loadings for this ZrO, which has a surface area of 48 m.g. The reaction results reveal that
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Disclosing the enhanced NH3-SCR-DeNO activity of Cu-containing zeolite Y prepared with 15-Crown-5 Catal. Today (IF 5.3) Pub Date : 2024-02-27 Magdalena Jabłońska, Rujito S.R. Suharbiansah, Ningqiang Zhang, Ken-ichi Shimizu, Muhammad Fernadi Lukman, Marko Bertmer, Huarong Lei, Andreas Pöppl, Ulrich Simon, Roger Gläser
The phase-pure zeolite Y with a high (Si)/(Al) ratio is obtained with the cyclic polyether 15-Crown-5 as a structure-directing agent. In copper-exchanged for this new zeolite outperformed other Cu-containing zeolite Y counterparts during NH-SCR-DeNO with more than 80% NO conversion and more than 85% N selectivity in the temperature range of 100 – 500 °C. The presence of Cu species located in sodalite
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Influence of TiO2 phases and functional groups on photocatalytic reduction of nitroaromatics Catal. Today (IF 5.3) Pub Date : 2024-02-27 Kasidid Yaemsunthorn, Marcin Kobielusz, Wojciech Macyk
Photocatalytic organic transformations have emerged as environmentally sustainable alternatives to traditional synthesis routes. This study delves into the intricacies of photocatalytic reduction of nitroaromatics using bare TiO materials, shedding light on critical factors that govern this green and sustainable transformation. Our systems reveal very promising conversion and selectivity levels, consistently
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Development of TiO2-based photocatalysts with high photocatalytic activity under simulated solar light: Metoprolol degradation and optimization via Box-Behnken Catal. Today (IF 5.3) Pub Date : 2024-02-27 Rebeca Fabbro Cunha, Thalita Ferreira da Silva, Rodrigo Pereira Cavalcante, Lucas de Melo da Silva, Carlos Eduardo Domingues Nazario, Heberton Wender, Gleison Antônio Casagrande, Lincoln Carlos Silva de Oliveira, Pilar Marco, Jaime Giménez, Ignasi Sirés, Amilcar Machulek Junior, Silvio César de Oliveira
The photocatalytic activity of N-doped TiO nanoparticles to degrade metoprolol (MET) has been investigated. The materials were synthesized via sol-gel method and characterized using different techniques. All materials revealed the formation of anatase phase, with a band gap energy close to 3.12 eV, which suggests that the N doping did not cause substantial variations as compared to pure TiO. However
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Unravelling the formation of Fe2SiO4 on Fischer-Tropsch Fe/SiO2 catalyst Catal. Today (IF 5.3) Pub Date : 2024-02-22 Qiang Chang, Jing Li, Haiyun Suo, Ming Qing, Hong Wang, Chenghua Zhang, Xiaodong Wen, Hongwei Xiang, Yong Yang, Yongwang Li
Fe-SiO interaction is a critical issue in the study of Fischer-Tropsch Fe/SiO catalyst. It has been advanced that the formation of Fe-O-Si bond is related to Fe-SiO interaction and responsible for dispersing iron particles and stabilizing active phases. This work formulates studying the relationship and interconversion between Fe-O-Si bond and FeSiO phase, and further concludes that FeSiO is another
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The comparison of photocatalytic reduction of CO2 on ZnO photocatalysts at slightly acidic and alkaline pH towards the formation of valuable products Catal. Today (IF 5.3) Pub Date : 2024-02-21 Ewelina Kusiak-Nejman, Katarzyna Ćmielewska, Ewa Ekiert, Agnieszka Wanag, Joanna Kapica-Kozar, Iwona Pełech, Urszula Narkiewicz, Antoni W. Morawski
The photocatalytic reduction of CO to carbon monoxide, methane and hydrogen (as a valuable byproduct) in the suspension or solution of various Zn-based forms in an alkaline environment and water, respectively, was investigated. These are the first results showing homogeneous CO photoreduction in the presence of Zn-based photocatalysts in an inorganic environment.
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Impact of Co impregnation on 3D printed alumina supports and effects on Fischer-Tropsch reaction Catal. Today (IF 5.3) Pub Date : 2024-02-21 Jasper Lefevere, Ben Sutens, Evert Boymans, Bart Michielsen
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Nitrate radical formation and reaction with limonene in TiO2 photocatalysis: A kinetic study Catal. Today (IF 5.3) Pub Date : 2024-02-21 Nicola Morante, Alessandro Gottuso, Francesco Parrino, Vincenzo Vaiano
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VOx@ graphene electro-catalysts for water splitting and dopamine sensing Catal. Today (IF 5.3) Pub Date : 2024-02-21 Loveleen K. Brar, Kaveri Ajravat, Amanpreet Kaur, Aayush Gupta, O.P. Pandey
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Entrapment in HydrIL gels: Hydro-Ionic Liquid polymer gels for enzyme immobilization Catal. Today (IF 5.3) Pub Date : 2024-02-20 José Ángel Pérez-Tomás, Rebekah Brucato, Preston Griffin, Jakub Kostal, Gareth Brown, Stefan Mix, Patricia C. Marr, Andrew C. Marr
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In-situ FT-IR study of alcohols degradation in the gas phase using different TiO2 composites Catal. Today (IF 5.3) Pub Date : 2024-02-20 Andrea Illana, José Miguel Doña-Rodríguez, Alison Robles, Óscar M. González-Díaz, Elisenda Pulido-Melián, Luis Miguel Azofra, Javier Araña
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Titanium dioxide and halloysite loaded polylactic acid-based membrane continuous flow photoreactor for 17α-ethinylestradiol (EE2) hormone degradation: Optimization, kinetics, mechanism, and reusability study Catal. Today (IF 5.3) Pub Date : 2024-02-20 Hassan Ali, Muhammad Yasir, Milan Masar, Pavol Suly, Tomas Sopik, Mukarram Zubair, Olinda C. Monteiro, Michal Machovsky, Vladimir Sedlarik, Ivo Kuritka
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Tailoring multi-layered BiVO4/WO3 photoanodes for an efficient photoelectrochemical gas-phase solar water splitting Catal. Today (IF 5.3) Pub Date : 2024-02-17 Ivan Merino-Garcia, Sara Crespo, Maite Perfecto-Irigaray, Garikoitz Beobide, Angel Irabien, Jonathan Albo
Photoelectrochemical gas-phase solar water splitting represents a promising avenue for sustainable hydrogen production, fulfilling the energy demands of the future. In this work, we present the fabrication and optimization of the functional performance of visible-light active BiVO/WO photoanodes with a tailored multi-layered structure. The photoanodes are manufactured in a reproducible way by an automated
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Green chemistry and biocatalysis: Engineering a sustainable future Catal. Today (IF 5.3) Pub Date : 2024-02-17 Roger Arthur Sheldon
The increasing role of biocatalysis in the green and sustainable manufacture of chemicals is discussed. In the last two decades the breadth and scope of biocatalysis has increased enormously as a result of remarkable advances in metagenomics, protein engineering and bioinformatics. Moreover, the use of enzymes has become more cost-effective through advances in immobilization technologies and the application
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Selective photocatalytic and photoelectrocatalytic synthesis of valuable compounds in aqueous medium Catal. Today (IF 5.3) Pub Date : 2024-02-17 Marianna Bellardita, Vittorio Loddo, Vincenzo Augugliaro, Leonardo Palmisano, Sedat Yurdakal
In the past decades, photocatalytic and photoelectrocatalytic methods have been widely employed for the degradation of harmful compounds present both is gaseous and aqueous effluents. In the last years scientists have paid great attention to the synthesis of valuable compounds and hydrogen production. Organic syntheses are generally carried out in organic solvents, under high temperature/pressure,
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Synthesis of high-surface-area C3N4 deposited on halloysite-derived silica nanotubes: Enhanced visible light degradation of norfloxacin Catal. Today (IF 5.3) Pub Date : 2024-02-16 L. Santamaría, S.A. Korili, A. Gil, J.M. López-de-Luzuriaga, M. Monge
Silica nanotubes, obtained from halloysite clay nanotubes that were calcined and acid-activated, were used as support for graphitic carbon nitride (g-CN) via a simple deposition method. They were chosen in order to avoid any agglomeration issues, as there was an increase of the specific surface area with respect to pristine halloysite. The composite was tested for the degradation of a persistent emerging
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Preface for the special issue in honor of Professor Serge Kaliaguine Catal. Today (IF 5.3) Pub Date : 2024-02-15 Ying Zheng
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Removal of clozapine from polluted waters via C₃N₄ based materials Catal. Today (IF 5.3) Pub Date : 2024-02-14 Vasilios Sakkas, Claudio Medana, Federica Dal Bello, Lucia Ingaramo, Christoforos Chrimatopoulos, Maria Cristina Paganini, Paola Calza
New photocatalysts with a g-C₃N₄-ZnO heterojunction were prepared following different synthetic routes, fully characterized, and evaluated for the abatement of the antipsychotic drug clozapine. Experiments were performed with clozapine standard and clozapine based commercial tablet solutions in a sun simulator and the evaluation of clozapine removal was assessed in different aqueous media: Milli-Q
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Development of a TiO2 nanotube photoanode decorated with MIL-53(Fe) for the photoelectrochemical degradation of 2,4-dimethylaniline Catal. Today (IF 5.3) Pub Date : 2024-02-14 Thalita Ferreira da Silva, Priscila Sabioni Cavalheri, Juliano Carvalho Cardoso, Carlos Eduardo Domingues Nazario, Juliana Jorge, Marco Antonio Utrera Martines, Luciana Marçal Ravaglia, Glaucia Braz Alcantara, Gleison Antônio Casagrande, Anderson Rodrigues Lima Caires, Rodrigo Pereira Cavalcante, Silvio César de Oliveira, Fabio Gozzi, Ignasi Sirés, Amilcar Machulek Junior
Metal-organic frameworks (MOFs) based on Fe exhibit great potential as highly effective photocatalysts for water treatment applications. TiO nanotube photoanodes decorated with 170–370 μg cm of MIL-53(Fe) and Fe-MOF (i.e., melamine-modified MIL-53(Fe)) were synthesized and evaluated in the photoassisted electrochemical degradation of 2,4-dimethylaniline (2,4-DMA) under visible light irradiation. The
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Evaluation of the reusability of photocatalytic P25/PDMS membranes when hindering their hydrophobic recovery Catal. Today (IF 5.3) Pub Date : 2024-02-14 Maria João Silva, Patrícia Alves, João Gomes, Paula Ferreira, Rui C. Martins
Polydimethylsiloxane is a suitable photocatalyst support for wastewater treatment. However, as polydimethylsiloxane is hydrophobic it must be modified, to become hydrophilic prior to its application. Unfortunately, this modification is not permanent and polydimethylsiloxane materials can recover part of their original characteristics. Therefore, even though photocatalytic polydimethylsiloxane-based
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Solar photocatalytic process using biomass-derived boron carbon nitride (BM-BCN) for the treatment of synthetic textile effluent Catal. Today (IF 5.3) Pub Date : 2024-02-13 R. Shakunthala, CK Sivaa Vignesh, R. Viswanathan, Manickam Matheswaran
This research elucidates the process of synthesizing, characterizing, and evaluating the removal efficiency of a pioneering biomass-derived non-metal photocatalyst BM-BCN. Within this framework, an efficient one-step synthesis method is presented for generating BM-BCN. This material is produced by subjecting a blend of boric acid, citron peel powder, and melamine to pyrolysis. The BM-BCN material exhibited
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Optimisation of a photoelectrochemical system for the removal of pharmaceuticals in water using graphitic carbon nitride Catal. Today (IF 5.3) Pub Date : 2024-02-12 Antía Fdez-Sanromán, André Torres-Pinto, Emilio Rosales, Cláudia G. Silva, Joaquim L. Faria, Marta Pazos, Adrián M.T. Silva
The search for a fast and efficient process to treat water contaminated with pharmaceutical substances is ongoing and societally required due to the impact on the environment and human health. In this work, a photoelectrocatalytic (PEC) system, coupling visible-light photocatalysis and electrocatalysis with suspended and immobilised graphitic carbon nitride (g-CN), has been proved as a feasible alternative
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Hafnosilicate microspheres as effective catalysts for the conversion of dihydroxyacetone to ethyl lactate Catal. Today (IF 5.3) Pub Date : 2024-02-09 Ali Shan Malik, Margot Van der Verren, Damien P. Debecker, Carmela Aprile
Transition-metal silicates are recognized as effective solid acid catalysts to produce value-added compounds from bio-based platform chemicals. One crucial factor in such catalytic transformations is the isomorphic substitution of transition metal into the tetrahedral coordination environment of SiO matrices. This substitution generates the acidic sites which represent the catalytically active sites
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Highly efficient carbon catalysts for the green synthesis of 1,5-benzodiazepines: Experimental and theoretical study Catal. Today (IF 5.3) Pub Date : 2024-02-08 Marina Godino-Ojer, Vanessa Ripoll-Morales, Luisa M. Pastrana-Martínez, Sergio Morales-Torres, Francisco J. Maldonado-Hódar, Elena Pérez-Mayoral
A family of sustainable carbon catalysts with different chemical surface, active and selective for the synthesis of benzodiazepine (BDZ), from -phenylendiamine (OPD) and acetone , under mild conditions, is reported. Catalysts were prepared by acids treatments with HSO or HPO of an activated carbon doped with ZnO at 3% wt (N3Zn) and, subsequently, submitted to additional thermal treatment in air. Simultaneously
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Catalytic oxidation of volatile organic compounds with Mn-zeolites Catal. Today (IF 5.3) Pub Date : 2024-02-07 L. Toloza-Blanco, K. Góra-Marek, K.A. Tarach, J. Sobalska, J. Martínez-Triguero, A. Plá-Hernández, A.E. Palomares
Mn-catalysts supported on zeolites are active materials for oxidising volatile organic compounds, but the catalysts' activity and selectivity depend on the support's characteristics. In this work, we study the performance of different Mn catalysts supported on zeolites with different Si/Al ratios and topology in the ethanol oxidation reaction. The results show a correlation between the mechanism of
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Photosynthesis of hydrogen peroxide in a two-phase system by hydrophobic Au nanoparticle-deposited plasmonic TiO2 catalysts Catal. Today (IF 5.3) Pub Date : 2024-02-05 Yifan Zhao, Hao Ge, Yoshifumi Kondo, Yasutaka Kuwahara, Kohsuke Mori, Hiromi Yamashita
Recently, the combination of photocatalytic reduction and oxidation reactions has attracted great attention, especially for the photocatalytic synthesis of hydrogen peroxide (HO) integrated with benzyl alcohol (BA) oxidation reaction. The plasmonic Au nanoparticles (NPs) driven by surface plasmon resonance (SPR) excitation can be efficiently applied for photocatalysis. In this study, the effect of
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What are the species involved in the gliding arc plasma synthesis of heterogeneous catalysts? Catal. Today (IF 5.3) Pub Date : 2024-01-29 Fanny Hanon, Sophie Hermans, Eric M. Gaigneaux
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The effect of hydrothermal aging on Mn2O3/Cu-SSZ-39 composite catalysts for selective catalytic reduction of NOx by NH3 Catal. Today (IF 5.3) Pub Date : 2024-01-30 Mingyu Xie, Yutian Zeng, Kai Cui, Wanting Su, Shijie Hao, Yun Zhang, Zhenguo Li, Guohua Jing, Huawang Zhao
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Computationally screening non-precious single atom catalysts for oxygen reduction in alkaline media Catal. Today (IF 5.3) Pub Date : 2024-02-03 Tahereh Jangjooye Shaldehi, Ling Meng, Soosan Rowshanzamir, Mohammad Javad Parnian, Kai Exner, Francesc Viñes, Francesc Illas
The performance of single-atom catalysts (SACs) containing Sc, Ti, V, Mn, Fe, Ni, Cu, and Pt on N-doped carbon (NC) as possible cathodes in advanced chlor-alkali electrolysis has been investigated by means of density functional theory (DFT) with the aim of finding candidates to improve the sluggish kinetics of the oxygen reduction reaction (ORR). A plausible mechanism is proposed for the ORR that allows
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A simple 1H PFG NMR method to determine intracrystalline molecular self-diffusivities for weakly adsorbing hydrocarbon gases in microporous materials Catal. Today (IF 5.3) Pub Date : 2024-02-03 Mick D. Mantle, Mohamed Ainte, Andrew P.E. York, M. Bentley, Lynn F. Gladden
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Inactivation of Acanthamoeba and its endosymbiont bacteria by the combination of solar light with H2O2 Catal. Today (IF 5.3) Pub Date : 2024-02-02 Carmen Menacho, Carlissa Marez, Patricia Chueca, Pilar Goñi, Maria P. Ormad
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From deposited metal precursors to supported atoms or nanoparticles Catal. Today (IF 5.3) Pub Date : 2024-02-02 John R. Regalbuto, Edward Chandler, Chigozie Ezeorah, Alaba Ojo, Nathan Thornburg, Mikayla Romero, Hien Pham, Abhaya Datye, Tae-Yeol Jeon, B. Frank Gupton, Christopher T. Williams
Strong Electrostatic Adsorption is a simple method to prepare highly dispersed supported metals. However, the minimum size of nanoparticles produced with gas phase reductions after SEA is typically about 1–2 nm. Alternative methods are explored to further decrease particle size, that is, to control the agglomeration of adsorbed precursors into nanoparticles, clusters, or isolated atoms. Three alternative
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Development of promoted cobalt/alumina Fischer-Tropsch catalysts for increased activity and selectivity: Micro-reactor to piloting scale Catal. Today (IF 5.3) Pub Date : 2024-02-02 Jana Heloïse Potgieter, Denzil Moodley, Thys Botha, Jacobus Visagie, Tebogo Manong, Marco Frank, Michael Claeys, Eric van Steen, Tim Böltken, Peter Pfeifer
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Green approach for micropollutants removal: Study of constructed wetlands as pretreatment of solar photo-Fenton catalyzed by organic fertilizers Catal. Today (IF 5.3) Pub Date : 2024-02-02 Núria López-Vinent, Alberto Cruz-Alcalde, Ana Piera Santacruz, Carme Sans
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Fischer-Tropsch cobalt activations: The role of water on catalyst reduction Catal. Today (IF 5.3) Pub Date : 2024-02-01 James Paterson, Mark Peacock, Hendrik Van Rensburg, Zhuoran Xu
Fischer-Tropsch synthesis has gained renewed interest for its role in sustainable fuels from renewable feedstocks such as biomass, municipal waste and CO. This submission highlights the importance of catalyst pre-treatments, such as cobalt activation (reduction), have on the final reactor performance. The role of reduction process controls such as temperature, pressure, partial pressure of hydrogen
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Change of MoS2 phase nature: Effect of molybdenum introduction path in TiO2 nanotubes Catal. Today (IF 5.3) Pub Date : 2024-02-01 Limor Ben Neon, Pascal Blanchard, Laetitia Dubau, Françoise Maugé, Laetitia Oliviero