The objective of this study was to evaluate the solar photocatalytic degradation of the disperse textile dye 2-(4-amino-2-nitrophenyl)-1,3-benzothiazole using titanium dioxide nanoparticles (TiO2 P25) under a mean solar irradiance of 492 ± 58...
Ethyl mercaptan is one of the most persistent sulfur-containing impurities in natural gas and requires efficient adsorbent/catalyst systems for removal under mild conditions. In this study, two types of halloysite-supported metal oxide catalysts, nam...
DNA methyltransferases (DNMTs) regulate gene expression and genome stability by transferring a methyl group from S-adenosylmethionine to cytosine through a catalytic mechanism involving a conserved cysteine. Dysregulated DNA methylation contributes t...
In the present work, we report the sustainable regioselective synthesis of a novel series of 1,2,3-triazole-based hybrid molecules containing isatins and 1,4-dihydropyridines by Copper(I)-catalyzed Azide-Alkyne 1,3-dipolar Cycloaddition (CuAAC). Our...
Mesoporous nanoscale HZSM-5 zeolites were prepared by alkali treatment and characterized by XRD, SEM, NMR, ICP-OES, N2 adsorption/desorption, NH3-TPD, Py-IR, and TG techniques. The effects of NaOH concentration on pore structure, acidity, and catalyt...
The valorization of agricultural and food-processing waste offers a promising pathway to develop cost-effective heterogeneous catalysts for biodiesel production. Herein, calcium-based catalysts were prepared by pyrolyzing mixtures of rice husk (RH) a...
In this study, an alternative methodology for the aqueous synthesis of chalcones is presented. This procedure is performed on a green basis at room temperature (25–40 °C) and using KOH. From this method, thirty-seven derivatives were obtain...
Biomass-derived fast pyrolysis oil (PO) represents a promising alternative fuel for aviation and heavy transport. However, its high content of oxygenated organic molecules necessitates catalytic hydrodeoxygenation (HDO) before it is viable to be sent...
Catalytic oxidation is one of the most effective technologies for controlling atmospheric pollutants like carbon monoxide (CO), volatile organic compounds (VOCs), and diesel soot. Catalyst performance is governed by the interplay between reaction mec...
Tetracycline hydrochloride (TCH) contamination poses serious environmental risks due to its persistence and bioaccumulation. Here we present an oxygen-vacancy-enriched BiVO4/TiO2 S-scheme heterojunction (5% BVO/TO) synthesized via a one-step solvothe...
Over the past decade, there has been significant attention to the utilization of carbon nanomaterials (CNMs) and CNM-based materials towards energy storage applications. Research has focused on enhancing the electrochemical performance and cycle stab...
Catalyst materials are typically synthesized with distinct composition, and they are evaluated for their specific reaction in terms of conversion and selectivity. In this respect, it can be anticipated that an intermediate composition often leads to...
The photocatalytic conversion of carbon dioxide (CO2) into methanol represents a promising strategy for both greenhouse gas mitigation and renewable fuel production. In this study, a niobium-based metal–organic gel (Nb-MOG) was employed as a ph...
A sustainable and scalable one-pot impregnation protocol, avoiding high-temperature calcination/activation, was employed to prepare Pd/Al2O3 (0.24 wt%), Pd/TiO2 (0.18 wt%), Pd/ZrO2 (0.21 wt%), Pd/SiO2 (0.37 wt%), Rh/Al2O3 (0.18 wt%), and Rh/TiO2 (0.1...
In this study, lamellar MFI (Mobile Five-membered ring Intergrowth) zeolites pillared with TiO2 were synthesized using tetraethyl orthotitanate (TEOTi) as titanium precursor and evaluated as photocatalysts for Rhodamine B (RhB) degradation under UV i...
Ozonation is one of the most widely used methods for wastewater treatment. However, it suffers from several drawbacks, including a low reaction rate, long reaction time, and the formation of intermediate byproducts due to incomplete oxidation. Theref...
This study investigates the thermochemical reaction behaviour of scheelite–millscale aluminothermy for direct tungsten alloying in steel production. Experimental mixtures of aluminium, millscale, and scheelite concentrate were simulated using g...
Ordered mesoporous carbons have emerged as versatile supports for Fischer–Tropsch catalysts due to their high surface area, tunable pore architectures, and chemical stability. However, the influence of active-metal identity on product selectivi...
In the present article, tetra(nonyl)calix[4]resorcinarene, tetra(p-methoxyphenyl)calix[4]resorcinarene, and tetra(p-bromophenyl)calix[4]resorcinarene were synthesized by the cyclocondensation method in acid medium. In the case of tetra(nonyl)calix[4]...
This study investigates the mechanochemical synthesis of silver molybdate (Ag2MoO4). Three silver precursors (AgCl, AgNO3, Ag2SO4) in combination with sodium molybdate dihydrate as the molybdenum precursor were used. Three corresponding sodium salts,...
In this study, a novel magnetic metal–organic framework (MOF) composite, Pd@UiO-66@Fe3O4, was successfully synthesized as a high-performance heterogeneous catalyst for the Suzuki–Miyaura cross-coupling reaction. The material was prepared...
An optimum In0.2Cd0.8S composition was synthesized with graphene to enhance photocatalytic performance. Graphene incorporation altered the morphology from compact grains to a loosely aggregated structure without affecting the crystal phase, as confir...
In this review, some special characteristics of the reactions in semiconductor photocatalysis are presented. At first, since a pair of the redox reactions take place at the same particle, a particle-based kinetic method was presented and applied for...
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Pure LaFeO3@C and LaCoO3@C and substituted LaFe1-xCoxO3 and LaCo1-xFexO3 perovskites (x = 0.10; 0.30) were used as catalysts for the liquid-phase oxidation of furfural at 150 °C and 30 bar of O2 pressure. The perovskites were characterized by XRD...
N-Alkyl urazoles are important heterocyclic compounds that serve as important precursors to potent N-alkyl 1,2,4-triazoline-3,5-dione electrophiles. Traditional methods for urazole synthesis rely upon the use of toxic isocyanates. We have modified an...
The 1,3-dipolar cycloaddition of nitrones with hydrazones affords 5-iminoisoxazolidines as the major products, in contrast to the reaction with enals, which exclusively afford 4-acylisoxazolidines. This reversal of regioselectivity can be explained i...
A series of bifunctional hierarchical HZSM-5 catalysts modified with Zn, Ga, Ni, Cr, or Ag were synthesized via impregnation, and their performance in the catalytic fast pyrolysis of walnut shells was systematically evaluated. The influence of the me...
Interest in further developments of the classical Fischer–Tropsch technology has increased in recent years. The development of processes capable of producing synthetic fuels has become a highly attractive research area due to the continuous glo...
This study presents a transient mathematical model and its numerical solution for the moving-boundary problem related to substrate diffusion and reaction in enzymatic catalytic particles. The main focus is on bioreactor startup, where the initial sub...
Red Amaranth (RA) Azo dye is a persistent pollutant in wastewater and stands as a toxicological risk, which has led to the development of effective methods for its removal and photocatalytic degradation. Therefore, CeO2 nanoparticles were synthesized...
This work presents the synthesis, characterization, and application of zirconium oxide (ZrO2)-based catalysts, modified with macro (silica nanospheres, NSP-SiO2) and mesopore templates (Pluronic 123), impregnated with tungstophosphoric acid (TPA), in...
Linear alkylbenzene (LAB) is the main raw material used to make biodegradable detergents, and its production process is based on aromatic alkylation. HY zeolites that have undergone controlled dealumination and desilication have led industrial standa...
Rhizopus oryzae lipase (ROL) is a key enzyme involved in olive oil spoilage and acts as a virulence factor in fungal infections. Natural lipophilic lipase inhibitors are crucial for mitigating economic losses resulting from lipid degradation in store...
Hydrodynamic cavitation (HC) is an efficient technique for biodiesel production. The main contribution of this study is the development of a modular reactor with a universal stainless steel joint, whose design facilitates the installation, replacemen...
Ethanol is widely used as an additive in fuels, so its effect on the electrochemical oxidation of triethanolamine was investigated on a 25 μm platinum microelectrode. Ethyl acetate was applied as a cosolvent to increase the permittivity of the med...
Magnesium-sulfur (Mg-S) batteries present a compelling energy storage solution, characterised by their remarkable theoretical energy density and economic viability. Nonetheless, challenges arise, including swift capacity degradation and suboptimal po...
The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two processes that occur during the operation of the cathodic electrode in Zn–Air batteries, which enable the integration of alternative energy sources into electrical...
Guanidines are structurally unique, highly basic, nitrogen-containing organic compounds with strong hydrogen-bonding ability and biological activity, providing valuable functionality in medicinal chemistry, organocatalysis, and materials science. Amo...
This study systematically investigates the role of Ni in Co2SiO4 in a bimetallic (Co2+,Ni2+)2SiO4 olivine-type system and the materials’ catalytic efficiency in a model Heck–Mizoroki coupling reaction. Thus, a series of olivines with vary...
The cycloaddition reaction is one of the most common reactions in organic chemistry. It has been applied in various fields. Herein, we focus on the application of cycloaddition reactions in investigating biological molecules and materials using magne...
Fumaric acid is one of the most important bio-based chemicals, with applications in the food, feed, polymer, pulp, and pharmaceutical industries. To overcome the limitations of the current petrochemical production process, alternative methods are bei...
Exploring effective oxygen reduction reaction (ORR) electrocatalysts is essential for advancing solid-state alkaline zinc–air batteries (ZABs). This paper presents the synthesis of silver–manganese dioxide–carbon nanotubes (SMC) ter...
The stability of perovskite materials in humid conditions significantly hinders their practical deployment. This study employed ab initio molecular dynamics (AIMD) simulations based on the Car–Parrinello approach to elucidate the adsorption mec...
In this study, the response surface method (RSM) was used to determine the best reaction conditions for the gas-phase hydrogenation of carbon dioxide on a commercial nickel-based catalyst. The RSM was applied in our previous study to find the optimal...
Black liquor, the side stream from Kraft pulping, is a promising feedstock for the production of renewable fuels via hydrothermal liquefaction (HTL). However, further upgrading of the black liquor HTL oil is required to reduce the oxygen content for...
The Sakurai reaction constitutes a valuable tool for carbon–carbon bond formation. The use of nontoxic allylic reagents as well as the atom economy of the global process has prompted the development of enantioselective (aza)-variants based on t...
Titanium oxide (TiO2) is of great interest in solar cell manufacturing, hydrogen production, and organic compound photodegradation. The synthesis variables and methodology affect the morphology, texture, crystalline structure, and phase mixtures of T...
Nitramines are nitrogen-containing organic compounds with the formula R1R2N–NO2. They are well-known as explosives and have been produced industrially for more than a century. A few nitramine-containing natural products have also been identifie...
The Kabachnik–Fields (KF) reaction is a versatile three-component method for the condensation of amines, carbonyl compounds, and P–H reagents, enabling efficient synthesis of α-aminophosphonates—key bioactive and functional mo...
