2025 February - 96 articles
Improving the dispersion of CuxO species is critical for enhancing the catalytic performance of CuxO/CeO2 catalysts in the preferential oxidation of CO. Herein, the 10CuxO/CeO2 catalyst was synthesized using a combined approach of one-step thermal de...
Hydrogen spillover, as a common phenomenon, pervasively occurs in heterogeneous catalysis. Nevertheless, the understanding of the dynamic mechanism of hydrogen spillover in the typical Pt/CeO2 system remains limited. Herein, the pathways for hydrogen...
Developing a catalyst with excellent electrical conductivity and catalytic performance for on-site testing of residual imidacloprid is significant and challenging. In situ growth of Mo2C nanodots on Co-induced N-doped carbon nanotubes (Co/Mo2C/N-CNT)...
In this study, we developed a palladium-catalyzed decarbonylative nucleophilic halogenation reaction using inexpensive and readily available acid anhydrides as substrates. This approach effectively circumvents the instability of acyl chlorides and th...
Titanium dioxide (TiO2) nanoparticles (NPs) are widely used in various industries and are increasingly found in environmental systems, especially in soil. However, the environmental behavior of TiO2 NPs is still poorly understood. Hence, this study a...
Granular activated carbon (GAC) serves as a cost-efficient electrocatalyst cathode in electrochemical water treatment. This study investigates the impact of current intensity and cathode mesh size on the electrocatalytic generation of reactive oxygen...
Water pollution by dyes is a major environmental problem, particularly in the textile, food, and pharmaceutical industries. These dyes are often complex chemical compounds that are difficult to remediate due to their chemical stability, their solubil...
This review explores the role of surfactants in enhancing or inhibiting the biodegradation of hydrophobic organic compounds (HOCs) by microorganisms. Bioavailability, the extent to which pollutants can be accessed and metabolized by microbes, is a ke...
A rapid synthesis of structurally novel s-indacene-1,5-dione and cyclopentanone-fused isoxazole derivatives in generally moderate yields was achieved through the NaNO2-catalyzed/involved transformation of cyclopentenone-MBH acetates. Under similar re...
Esterases have been applied in many industrial fields. However, many esterases have inherent defects as natural enzyme, such as low long-term storability, poor operational stability, and difficulty in recovery for reuse. Herein, two histidine derivat...
The photocatalytic CO2 reduction (PCR) into value-added fuels offers a promising solution to energy shortages and the greenhouse effect, thanks to the mild conditions and environmental sustainability. However, the activation of CO2 is challenging bec...
This review provides a state-of-the-art and up-to-date analysis of the design and development of green monopropellant thrusters based on hydrogen peroxide (H2O2) and hydroxyl ammonium nitrate (HAN) as high-energy compounds for reaction control maneuv...
A mesoporous anatase/silica core–shell nanostructure (ASCS) was synthesized via a sol–gel method at 90 °C, and then cadmium sulfide quantum dots (CdS-QDs) were encapsulated in it, forming CdS-ASCS. The CdS-ASCS was synthesized to enha...
Palladium nanoparticles (PdNPs) are transforming the landscape of modern catalysis and offer sustainable and efficient alternatives to traditional catalysts for cross-coupling reactions. Owing to their exceptional surface area-to-volume ratio, PdNPs...
Biocatalytic processes for the formation of bioactive compounds and biopolymer preparations that can be applied in pharmaceuticals and cosmetics are gaining increasing interest due to their safety and sustainability, relying on environmentally friend...
A synthesis of organophosphorus compounds containing an aziridine ring, previously described by our group, has been performed and the catalytic activity of the aforementioned chiral heterorganic compounds has been investigated in the asymmetric nitro...
Zinc-iodine batteries, which have the advantages of low cost, high safety, long lifespan, and high energy density, currently rank as one of the most promising electrical energy storage devices. However, these batteries still face significant challeng...
In this study, we explore the charge transfer mechanism between CuWO4 and CuBi2O4 in a tandem photoelectrochemical cell. Physical–chemical characterization of the individual between CuWO4 and CuBi2O4 electrodes electrode by XRD, XPS, and SEM me...
A magnetic shell-structured nano-catalyst was prepared by self-polymerization of dopamine wrapped by ferric oxide as the carrier, which was loaded with palladium nanoparticles (Pd/PDA@Fe3O4). The presence of magnetic Fe3O4 made it easy for nanoscale...
Developing more effective gold–support synergy is essential for enhancing the catalytic performance of supported gold nanoparticles (AuNPs) in the gas-phase oxidation of ethanol to acetaldehyde (AC) at lower temperatures. This study demonstrate...
The combination of TiO2 with zeolites has emerged as a transformative strategy to enhance photocatalytic performance for environmental applications. The combination of zeolites’ regular pore structure, high surface area, and adsorption capacity with...
This study aimed to synthesize a multicationic hydrotalcite and transform it into mixed oxide nanostructures (ZnO/TiO2/CeO2/Al2O3, referred to as MixO) to serve as a heterogeneous photocatalyst for degrading various pollutants, including methylene bl...
The electrochemical reduction from nitrate (NO3RR) to ammonia (NH3) provides a decentralized and environmentally friendly route for sustainable ammonia production while addressing the urgent issue of nitrate pollution in water bodies. Recent advancem...
TiO2 aerogels have been employed for the degradation of formaldehyde (HCHO) via the photocatalytic generation of reactive oxygen species (ROS) (O2−, ·OH), and its pore size plays a crucial role in affecting the decomposition efficiency....
In this study, the novel composite materials of activated carbon (AC) and persulfate (PS) doped by nitrogen (N) and sulfur (S) were successfully synthesized through one-step mechanical ball milling. Different from the previous liquid-phase activation...
This study evaluates the impact of the catalyst-to-oil (C/O) ratio in the 1 to 7 range on the catalytic cracking of vacuum gas oil (VGO). Experiments are conducted using fluid catalytic cracking (FCC)-type catalysts, in a mini-fluidized bench-scale R...
Lipases are enzymes that catalyze the hydrolysis of carboxylic esters at a lipid–water interface and are able to catalyze reactions such as alcoholysis, esterification, transesterification, and enantioselective synthesis in organic media. They...
The introduction of oxygen vacancies (OVs) is a promising strategy to enhance the hydrogen (H2) evolution efficiency of photocatalysts. Sodium borohydride (NaBH4) is widely used as a reducing agent to introduce OVs, particularly in composite material...
TiO2 is still a prototype material in photocatalytic studies. The defects, including the intrinsic and foreign defects, are reported to be important in determining the TiO2 photocatalytic properties. In the current research, amorphous TiO2- and Nb-do...
This research presents the synthesis of Fe-doped ZnS nanocomposites via a chemical route, exploring their photocatalytic activity against amoxicillin (AMX) and evaluating their hydrogen production potential. The synthesized nanocomposites were charac...
TiO2 films and N-doped TiO2 films modified with silver (Ag/N-TiO2) were synthesized using DC magnetron sputtering. By varying the N2 flow rate and the Ag sputtering power, respectively, the degree of doping and modification was managed. The microstru...
The excessive use of ciprofloxacin, an antibiotic, has led to environmental challenges such as drug resistance and severe water pollution, necessitating effective mitigation strategies. Piezo-photocatalytic technology offers a sustainable solution. I...
In this paper, modified HZSM-5 catalysts with different ratios of chromium (Cr/HZSM-5) were synthesized and the solvent effect of gamma valerolactone (GVL) on the enhancement of levulinic acid (LA) yield was investigated. Characterization of the Cr/H...
The utilization of red mud as a catalyst support has been investigated to produce high-value carbon and COx-free hydrogen from natural gas. Nickel impregnation between 10 wt% to 20 wt% over red mud generates more active species in the form of nickel...
Ammonia is a key “platform” raw chemical for fertilizers and nitrogen-containing chemicals, with a global annual production of ~180 million tons. Recently, ammonia has also come to be seen as an excellent hydrogen-containing liquid promising for long...
In recent years, efforts have been made in developing new and more efficient water purification methods and the synthesis of catalysts with greater catalytic activity that are more stable and can be used in wide pH ranges. Pillared clays represent a...
Atmospheric and water pollution has led to serious harm to the global environment and human health. Photocatalysis and photothermal catalysis technologies have been considered as promising methods to handle pollutants in the atmosphere and water due...
Piezocatalysis is a promising technology for converting mechanical energy to chemical energy. Two-dimensional (2D) piezoelectric materials, with their large surface area, high charge mobility, and good flexibility, are among the most promising candid...
Well-defined supported metal nanoparticle catalysts, with high uniformity in particle sizes of the dispersed metal, are crucial for studying their catalyzed reactions that exhibit structure sensitivity. For such catalysts, conventional methods of pre...
Coal fly ash and acid mine drainage are significant environmental issues in South Africa, causing storage constraints and impacting water quality. This study explores the use of coal fly ash and acid mine drainage in preparing zeolite HBEA-supported...
The purpose of this work was to consider the decolorization efficiency of reactive yellow 160 (Ry-160) dye utilizing cobalt aluminum oxide (AlCo2O4)-anchored Multi-Walled Carbon Nanotubes (AlCo2O4/MWCNTs) nanocomposites as catalysts for the first tim...
The catalytic performance of mixed metal oxides in the combustion of paper industrial waste (bark, paper sludge, and waste paper reject) was investigated. The mixed metal oxide catalyst with, SiO2, Al2O3, Fe2O3, and CaO percentages of 78.57, 9.28, 4....
The shift toward sustainable energy sources is essential to curb greenhouse gas emissions and satisfy energy demands. Among renewable options, carbon-based materials—such as agricultural residues and municipal solid waste—provide a dual a...
A novel sequential one-pot bimetallic catalytic system combining Fe(III)-catalyzed alkynylation and a Rh(I)-catalyzed [2+2+2] reaction was successfully developed. The σ-Lewis acid properties of iron (III) and the π-Lewis acid properties of r...
In this work, we demonstrated that air-stable Ni(0) complexes with phosphine ligands can effectively catalyze intramolecular cyclotrimerization of a triyne to a compound with a [7]helical indeno[2,1-c]fluorene skeleton. The obtained results are compa...
Manganese-based oxides with good redox properties exhibit high soot oxidation activity. To further enhance their catalytic performance, introducing additional metal elements into manganese-based oxides is considered an effective approach. Herein, two...
With unique photochemical properties, graphitic carbon nitride (g-C3N4) has gained significant attention for application in photocatalytic degradation of a wide range of organic pollutants. However, its performance is limited by the rapid electron&nd...
Protein engineering has emerged as a transformative field in industrial biotechnology, enabling the optimization of enzymes to meet stringent industrial demands for stability, specificity, and efficiency. This review explores the principles and metho...
The continuous growth in world energy demands along with the urgent need for decarbonization are strong motivations for the development and usage of sustainable fuels. Hydrogen is highly anticipated to replace fossil fuels in energy production, as it...
The influence of secondary porosity and the dimensionality of zeolitic structures with 1D and 3D pore systems on the accessibility of cumene to Brønsted acid sites was evaluated in this study. Zeolites Y, ZSM-5, and MOR, obtained through NH4F...
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