Catalysts, Volume 15, Issue 1

In the realm of green hydrogen energy, utilizing ruthenium (Ru) as a precious metal electrocatalyst for the hydrogen evolution reaction (HER) instead of platinum (Pt/C) is an excellent choice. Unfortunately, there are not enough active sites or elect...

Increasing demand for clean energy power generation is a direct result of the rapid depletion of fossil fuel reserves, the volatility of fossil commodity prices, and the environmental damage caused by burning fossil fuels. Fuel cell vehicles, portabl...

The international challenges of water directed the scientists to face the environment-related problems because of the high concentrations of industrial pollutants. In this direction, the present study focuses on designing effective photocatalysts by...

In this study, a novel Z-scheme heterojunction photocatalyst was developed by integrating g-C₃N₄ nanoplates into ZnIn₂S₄ microspheres. X-ray photoelectron spectroscopy analysis revealed a directional electron transfer from g-C₃N₄ to ZnIn₂S₄ upon hete...

As a promising member of the carbon nitride family, nitrogen-rich g-C₃N₅ has attracted significant attention because of its excellent light absorption performance. Nevertheless, its practical application in photocatalytic CO₂ reduction is hindered by...

The hybrid sulfur cycle (HyS), as one of the most promising thermochemical cycles for hydrogen production, has received widespread attention in recent years. The HyS contains the sulfur dioxide depolarization electrolysis (SDE) reaction that produces...

In recent years, lignin derived from lignocellulosic biomass has emerged as a critical component in modern biorefinery systems. The production yield and reactivity of lignin are critical factors for advancing the research and development of lignin-de...

Feruloyl esterases (FAEs) play critical roles in industrial applications such as food processing, pharmaceuticals, and paper production by breaking down plant cell walls and releasing ferulic acid. However, most bacterial FAEs function optimally in a...

The objective of this work was to develop a highly active hydrotreating catalyst for processing heavy gas oil to provide qualified feedstock for hydroisomerization or a hydrocracking unit. The NiMo/γ-Al₂O₃ catalysts doped with phosphate were pr...

Fe₂B is a potentially promising electrocatalyst for the oxygen evolution reaction (OER) due to its excellent electronic conductivity, which is superior to that of traditional oxide catalysts. However, the activity of Fe₂B is still not satisfactory. I...

Bentonite-supported TiO₂ (Montmorillonite (MMT)-TiO₂) and Cu₃TiO₅ oxides (MMT-Cu₃TiO₅) nanomaterials were synthesized via a facile and sustainable sol–gel synthesis approach. The XRD results indicate the presence of mixed phases, namely, TiO₂ a...

The global spread of pathogenic microorganisms, including bacteria, viruses, and fungi, poses a serious threat to public health and the global economy, as evidenced by the severe and widespread impact of the COVID-19 pandemic [...]

Herein, anionic (sodium dodecylbenzene sulfonate, SDBS) and cationic (cetyltrimethylammonium bromide, CTAB) surfactants are involved in the synthesis of a poly(acrylic acid-co-acrylamide) copolymer, p(AA-co-AM), containing nanoceria (CeO₂). The physi...

Constructing an S-type heterojunction to promote photogenerated carrier separation is a valid method to ameliorate this problem. In this work, self-assembled perylenetetracarboxylic diimide (PDI) was modified on the surface of two-dimensional (2D) Bi...

Congo Red is a complex aromatic azo dye whose metabolites can be toxic due to their carcinogenicity, mutagenicity, and various associated toxic effects on flora, fauna, and humans. Different technologies have been employed to degrade this dye, includ...

Catalysis plays a key role in both organic chemistry and polymer chemistry [...]

The cobalt manganese oxides, especially the spinels and related (multiphase) materials described with the formula Co_xMn_3−xO₄ (0 < x < 3), are widely used catalysts in a range of processes in significant industrial and environmental areas....

Photocatalytic-coupled microbial electrochemical systems (MESs) represent an emerging wastewater treatment technology which aims to address the limitations of traditional methods, such as the inadequate removal of refractory pollutants and excessive...

Ruthenium-based catalysts were prepared through a deposition–precipitation approach, taking beta zeolites with Si/Al ratios of 12.5, 18.5, and 150, respectively, as supports, and 1–3 wt% loadings of metal. Their activation was performed i...

Ir-based catalysts are the best in terms of activity and stability for oxygen evolution reactions (OERs) in proton exchange water electrolysis. Due to their cost, efforts have been made to decrease their load without a loss of activity. In this paper...

In this study, the palladium-catalyzed aminocarbonylation of 1-iodoisoquinoline was accomplished in the presence of various amines. While the reactions with simple primary and secondary amines were carried out by using the well-known Pd(OAc)₂/PPh₃ ca...

COx-free H₂, along with uniform carbon nanotubes, can be achieved together in high yield by CH₄ decomposition. It only needs a proper catalyst and reaction condition. Herein, Fe-based catalyst dispersed over titania-incorporated-alumina (Fe/Ti-Al), w...

The efficient removal of dyes and Cr(VI) from wastewater is imperative. Therefore, a mixed metal oxide CuMoV(450) derived from a polyoxometalate-based metal–organic framework (POMOF) [Cu(2,2′-bipy)][Cu(2,2′-bipy)₂]₂[PMo₈V₆O₄₂]•...

This paper presents the results of a study on the effect of lipase on the methane fermentation of sewage sludge. The process was conducted at 37 °C for 20 days for five sludge mixtures. Excess sludge inoculated with digested sludge constituted th...

Proton Exchange Membrane Fuel Cells (PEMFCs) are widely regarded as promising clean energy technologies due to their high energy conversion efficiency, low environmental impact, and versatile application potential in transportation, stationary power,...

Heterojunction creation is demonstrated as an effective strategy to enhance the transfer and separation of charge carriers, which is beneficial for subsequent photocatalytic reactions. In this study, “sea urchin-like” W₁₈O₄₉ was in situ-g...

Heterocycles are widely present in natural products, pharmaceuticals, and organic functional materials. In heterocycle synthesis, Pd-catalyzed cascade C–H functionalization has been regarded as one of the most powerful approaches due to its adv...

In this study, seeded zinc oxide (Z-ZnO) thin films were fabricated by a two-step electrochemical deposition process. Different annealing temperatures (300, 400, 500, and 600 °C) were investigated to determine the most effective temperature for t...

Metal–organic frameworks (MOFs) have emerged as versatile materials with remarkably high surface areas and tunable properties, attracting significant attention for various applications. In this work, the modification of a UiO-66 MOF with metal...

A novel dual Z-scheme heterojunction photocatalyst was constructed by introducing the narrow-bandgap semiconductor CuInS₂ (CIS) into the dual metal-organic framework (MOF) system of UiO-66(Zr) and NH₂-MIL-101(Fe). This structure effectively overcomes...

Mitigating global warming necessitates transitioning from fossil fuels to alternative energy carriers like hydrogen. Efficient hydrogen production via electrocatalysis requires high-performance, stable anode materials for the oxygen evolution reactio...

Direct light olefin synthesis from bio-syngas hydrogenation is a promising pathway to decarbonize the chemical industry. The present study is devoted to the investigation of co-hydrogenation of carbon oxides in the presence of complex systems with th...

Fibrous SiO₂-TiO₂ (FST) is one of the most promising materials for advancing photoelectrochemical water-splitting technology due to its cost-effectiveness and environmental friendliness. However, FST faces intrinsic limitations, including its low con...

Herein, we report a practical example of salicylaldehyde-based cobalt-catalyzed C−H deuteriomethoxylation of benzamides using deuterated methanol, facilitated by 8-aminoquinoline as a directing group. The salicylaldehyde-based cobalt catalyst i...

The sol-gel process was used to create titanium dioxide (TiO₂) nanoparticles, a nanocrystalline semiconductor. How several synthesis factors, such as titanium precursor concentration, annealing temperature, and peptization temperature, affected the s...

A Solar Corrosion Fenton reactor (SCFr) was developed by packing an iron-carbon steel filament inside the reactor to enable the in situ release of Fe²⁺. A Box–Behnken experimental design was used to optimize the effect of HRT (20, 30, and 40 mi...

Residual Macadamia F.Muell nutshell gasification assisted by CO₂ was studied in this work. Monometallic Co, Na, and K and bimetallic CoNa and CoK catalysts were prepared and tested in the catalytic process. The idea of this research was to try to fin...

Efficient and sustainable catalytic processes are crucial for advancing green chemical manufacturing. Here, we describe the synthesis of novel silver artificial metalloenzymes in colloidal form in aqueous media and room temperature. The strategy is b...

In the presented work, titanosilicate with the MWW structure (Ti-MWW) was hydrothermally synthesized using boron and titanium precursors, with piperidine as a structure-directing agent. The resulting layered zeolite precursor, with a Si/Ti molar rati...

This work examines the solar photocatalytic degradation of the antibiotic sulfamethoxazole (SMX) using molybdenum telluride (MoTe₂)-promoted bismuth oxychloride (BiOCl). Different loadings of molybdenum telluride in the 0–1% range on BiOCl were...

The systematic design of ruthenium-based electrocatalysts for the hydrogen evolution reaction (HER) is crucial for sustainable hydrogen production via electrocatalytic water splitting in an alkaline medium. However, the mismatch between water dissoci...

Partial hydrogenation of benzene is the main approach to cyclohexene synthesis in industry. Here, the reaction mechanisms of benzene hydrogenation on Pd-Zn bimetallic catalysts were studied using density functional theory, with the aim of understandi...

The increasing concentration of antibiotics in natural water poses a significant threat to society’s sustainable development due to water pollution. Photocatalytic technology is an efficient and environmentally friendly approach to environmenta...

This study examines the factors influencing the formation and structure of ZnPd-ZnO active sites supported on TiO₂ by comparing their genesis from Pd/TiO₂ base catalysts prepared by impregnation using different Pd precursors (Pd(NH₃)₄(NO₃)₂ and Pd(ac...

Over the past three decades, organic reactions catalyzed by lipase have been extensively studied. To overcome the drawbacks of free enzymes and develop new and sustainable biocatalysts, various insoluble forms of lipases were examined. Especially int...

1,2-Propanediol, with its highly functionalized molecular structure and abundant availability, serves as a viable feedstock for high-value chemicals. The oxidation of 1,2-propanediol can potentially yield lactic acid, an important commodity chemical....

The electrochemical CO₂ reduction reaction (CO₂RR) to formate offers a promising pathway to mitigate the energy crisis and realize carbon neutrality. Bismuth (Bi), as a metal catalyst for the CO₂RR, is considered to have great potential in producing...

Tetracycline is often used in treating various diseases or infections, which also leads to severe environmental threats due to its toxicity, durability, and low biodegradation. Meanwhile, although ultrasound (US)-assisted activation of persulfate (PS...

Recent developments in the synthesis of substituted polyacetylenes have considerably benefitted from advancements in organometallic catalysis; however, most important developments rely on the advent of Rh-catalyzed living polymerizations. The latter...

Lignin is one of the main structural components of lignocellulosic biomass and can be utilized to produce phenolic compounds that can be converted downstream to cycloalkanes and aromatics, which are useful as drop-in road or aviation biofuels. Within...