Developing affordable and high-efficient bifunctional electrocatalysts for the promotion of clean energy conversion systems (like rechargeable zinc-air batteries (ZABs)) is of great significance. Herein, a hybrid material consisting of CoS2 strongly coupled to the iron-nitrogen-doped carbon (FeNC) (FeNC-CoS2) is developed as a formidable bifunctional oxygen mA cm2 = 1.608 V). Further, assembled rechargeable

Organosulfonic acid-functionalized biomass-derived carbon catalysts were developed using different aryl and alkyl sulfonating reagents at low concentrations. The catalysts were characterized using advanced analytical techniques and evaluated in glycerol acetylation in a batch reflux reactor. Results indicated that the catalyst obtained from the functionalization of palm kernel shell with ethanesulfonic

Amyloid fibrils’ stable structure and nice biocompatibility make them good candidates as the templates used in engineering and biomedicine. While palladium nanoparticles have been widely used as catalysts, their high surface energy results in aggregation of nanoparticles, leading to decreased catalytic activities. Here, we investigated the catalytic performance of palladium nanoparticles-deposited

In this research, we stated the fabrication of an innovative sulfamic acid functionalized magnetic nanoparticles (Fe3O4@PAMAM-SO3H) with denderimeric linkers. FT-IR, TEM, XRD, FE-SEM, and TGA methods were carried out to characterize the catalyst. Eventually, The catalytic prowess of the Fe3O4@PAMAM-SO3H was tested to synthesize highly substituted pyrans. The obtained magnetic sorbent was also used

The β-cyclodextrin-modified graphene oxide nanosheets ([email protected]), linked by chemical bonds, was successfully prepared. With it was used as fillers, the new [email protected]/Polyether sulfone (PES) mixed matrix membrane (CMCDGOM) was prepared by the non-solvent induced phase inversion method. FTIR, XRD and Raman Spectroscopy were used to demonstrate that [email protected] was successfully

In the present study, an improved Incompressible Smoothed Particle Hydrodynamics algorithm (ISPH) is proposed to model the mixing flow in an active micromixer in which an oscillating cylinder cusses to enhance the mixing rate. The mass transport is investigated for the case that the inlet fluids can have different viscosities. First, the numerical procedure is explained. Then it is validated against

Growing interest in healthy lifestyles and muscle building has led the increasing consumption of dairy food supplements. However, the allergic reactions to whey products has driven the research efforts towards fractionation and enrichment of specific whey proteins, like α-Lactalbumin and β-Lactoglobulin. This research presents the techno economical assessment of a continuous fractionation process of

We investigate the release of hard-sphere-like molecules from a porous medium to a continuum fluid using dynamical density functional theory. The hard-sphere interactions are employed on the basis of the weighted density approximation. The model porous medium is assumed as a planar wall and molecules are loaded in the medium at an effective density. An equivalent surface density of molecules is applied

In recent years, 5-hydroxymethylfurfural (5-HMF) as an important intermediate in the production of added-value chemical products have been produced from the hydrolysis of carbohydrates in the new generation of green solvents named as deep eutectic solvents (DESs). In order to development, design, and optimization of the synthesis and extraction processes containing 5-HMF, the thermodynamic properties

This work firstly presents the rigorous modeling of the two plant-wide glycerol carbonate (GC) production processes through the transesterification reaction of glycerol (GLY). One is the Separated Reaction and Distillation (SRD) process, and the other is the Reactive Distillation-based (RD) process. This work covers the thermodynamic and kinetic verification, the rigorous simulation of the two processes

Thermo-chemical conversion of biomass using Dual Fluidized Bed (DFB) gasifier is proven to be a promising way for the production of H2 rich syngas. In the present work, the hydrodynamics in the DFB gasifier is investigated experimentally and with Computation Fluid Dynamics (CFD) at cold flow conditions. Three-dimensional Eulerian-Eulerian multi-phase model combined with the kinetic theory for the granular

The increasing amount of excess sludge (ES) has become a heavy burden for biological wastewater treatment, and the function of potassium ferrate (PF) in ES treatment as a strong oxidizing reagent has received increasing attention. This study comprehensively investigated the contribution of different dosages of PF on sludge disintegration in a short time interaction with sludge, from the perspective

Physiological and emotional stress affects the regulation of cortisol secretion, a routine process in circadian rhythm. Regular monitoring of cortisol level as a biomarker in the blood stream becomes vital to determine cortisol-related diseases. This study reports immuno-probed graphene nanoplatelets on electrolyte-gated field-effect transistor (EGFET) biosensor for cortisol determination in human

ZrB2-based composites were consolidated through reactive spark plasma sintering of the powder mixtures containing relatively 5 vol.% of metallic Zr particles, and graphite flakes (GF) or carbon nanotubes (CNT) as the carbon source, with the aim of ZrC in-situ synthesis in ZrB2 matrix. Microstructural and phase analyses indicated that GFs cannot result in detectable ZrC in the final microstructure.

Graphitic carbon nitride (g-C3N4) gets lots of attention as a promising candidate in solar energy conversion. However, the single modification method has limited effectiveness to access highly photocatalytic performance g-C3N4 catalyst. In this work, we present a facile method that can construct nitrogen and sulfur defects in the synthesis process of sulfur-doped g-C3N4. As results, nitrogen and sulfur

The fabrication of nanostructured catalysts based on noble metal nanoparticles has attracted much attention. In this study, multiple tiny Ag nanoparticles loaded hollow mesoporous organosilica spheres (MT-Ag@HMOS) were synthesized by a novel polymer mediated growth approach. During the preparation, polyacrylic acid@hollow mesoporous organosilica spheres (PAA@HMOS) were first produced formed by condensation

This article explores the problem arising in the filtration process of blood through a membrane of hemodialyzer. The blood is assumed to behave like a viscous Newtonian fluid moving through a 2D channel with permeable boundaries containing a Darcian porous medium. The well known Brinkman model is adopted in the balance of momentum transfer during the blood filtration process. Construction of exact

K2Ti6O13/TiO2 nanocomposite photocatalysts were synthesized via a precipitation-calcination method using water extract of wood ash (WEWA) as a precipitating agent from waste. As the WEWA solution was basic and contained K+ ions, a chemical base and potassium source were not required for this synthesis. The as-synthesized products were calcined at 500, 600, 700, and 800 °C and the calcined products

Recently chamber inhibition emerged as a cost efficient and environmentally friendly type of vapor phase inhibition capable of protecting a metal surface from corrosion. In this work we study the structure and properties of a surface layer formed on copper after chamber treatment with 5-chloro-1,2,3-1H-benzotriazole (CBTA) whose protective effect significantly exceeds that of native copper oxide. Using

In this study, Keggin- and Dawson-type polyoxometalates (POMs) were immobilized on chitosan (CS)-modified Fe3O4@CS by electrostatic interaction for the preparation of heterogeneous catalysts Fe3O4@CS@POM (POM=PMo12, PW12, SiW12, P2W17, or P2W18). The oxidative desulfurization (ODS) of dibenzothiophene (DBT) by Fe3O4@CS@POMs was evaluated. It is found that Fe3O4@CS@POM shows the good ODS performance

In this study, magnetically separable, highly efficient full-spectrum light active WO2.72/Fe3O4 nanocomposites were synthesized by a solvothermal method and well characterized. The photocatalytic property of WO2.72/Fe3O4 nanocomposite toward photodegradation of methylene blue (MB), methyl orange (MO), and rhodamine B (Rh B) dyes under solar and photoreduction of Cr(VI) under ultraviolet (UV), visible

Facile construction of Ag, In2O3, or Nd2O3 nanoparticles (NPs) incorporated mesoporous LaNaTaO3 nanocrystalline using Pluronic F-127 were explored for photocatalytic H2 generation compared to pristine LaNaTaO3 nanocrystalline. The mesoporous LaNaTaO3 was achieved a little H2 generation ~ 40 µmolg−1; however, H2 generation extremely promotes with the incorporation of Ag, In2O3, and Nd2O3 NPs compared

In the present study, an integrated process for preparation of anthocyanins components from blue honeysuckle fruits using deep eutectic solvent-based negative pressure cavitation extraction (DES-NPCE) was explored rationally. Single factor optimization combined with Box-Behnken Design (BBD) were applied to confirm the influential parameters. The maximum extraction yields of total anthocyanins and main

The potent bacterial infections serve as the primary cause of mortality due to the absence of novel antibacterial therapy. The present investigation synthesized citric acid dendrimers through the divergent method that serves as a suitable platform in fulfilling the prerequisites of drug delivery. The cytotoxicity studies revealed 5.4 ± 0.3% of cell viability at 0.5 μg/ml and 35±0.3% at 300 μg/ml after

Recently, non-faradaic electrochemical impedimetric (nfEIS) has been identified as a dynamic and robust method for bio-determining. However, the success of a nfEIS approach largely depends on its sensing layer architecture. In this study, the use of a Glutaraldehyde (GA) crosslinked copper (Cu) – bovine serum albumin (BSA) hybrid nanoflower with three-dimensional nanoporous architecture for the sensing

The routes to convert CO2 into environmentally benign materials have attracted wide attentions. In this work, an emerging process to produce poly(butylene carbonate) (or PBC) from direct copolymerization of carbon dioxide and 1,4-butanediol is firstly simulated with analyses on the CO2 emission ratio (CO2-e, in kg-CO2/kg-PBC) and yearly unit manufacturing cost of product (YUMC, in USD/kg). In order

Rubidium is a critical mineral due to its important role in the rubidium atomic clock in global positioning systems. In our previous study, lithium, rubidium, cesium were extracted simultaneously from lepidolite by a sulfuric acid baking process; a sulfate solution with 10.26 g/L-Rb+ and 40.74 g/L-K+ was obtained after recovery of lithium and cesium. As the continuity of this research, solvent extraction