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Merits photocatalytic activity of rGO/zinc copper ferrite magnetic nanocatalyst for photodegradation of methylene blue (MB) dye.
Discov Nano
January 2025
Department of Chemical Engineering, Military Technical College (MTC), Cairo, Egypt.
The world is now facing a water scarcity crisis due to waste, pollution, and uneven distribution of freshwater resources, which are limited. Thus, the creation of innovative, economical, and effective methods for purifying water is crucial. Here, the photo-assisted degradation of methylene blue (MB) dye under visible light and UV was achieved by using RGO photocatalyst loaded with ZnCuFeO in three different loaded 10%, 20%, and 30% called MRGO 10, MRGO 20, and MRGO 30.
View Article and Find Full Text PDFHoley etching strategy of siloxene nanosheets to improve the rate performance of photo-assisted Li-O batteries.
Nanoscale
December 2024
Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, Xi'an, 710062, P. R. China.
Improving the rate performance is of great significance to achieve high-performance photo-assisted Li-O batteries for developing new optimized bifunctional photocatalysts. Herein, a holey etching strategy is developed to prepare porous siloxene nanosheets with a size of 10 nm and few layers (P-siloxene NSs) by a modified Ag-assisted chemical etching method, and the optimized pore-forming conditions are: Ag ion concentration 0.01 mol dm, HF concentration 0.
View Article and Find Full Text PDFPhoto-Accelerated Synthesis of Oligo(triazole amide)s.
Macromol Rapid Commun
November 2024
CNRS, UMR 7006, ISIS, 8 allée Gaspard Monge, Université de Strasbourg, Strasbourg, 67000, France.
A photo-assisted process is explored for improving the synthesis of oligo(triazole amide)s, which are prepared by solid phase synthesis using a repeated cycle of two reactions: amine-carboxylic acid coupling and copper-catalyzed azide-alkyne cycloaddition (CuAAC). The improvement of the second reaction is investigated herein. A catalytic system involving Cu(II)Cl, N,N,N',N″,N″-pentamethyldiethylenetriamine (PMDETA) and a titanocene photoinitiator is explored for reducing the reaction time of CuAAC.
View Article and Find Full Text PDFHigh-Efficiency Photo-Assisted Large Current-Density Water Splitting with Mott-Schottky Heterojunctions.
Angew Chem Int Ed Engl
October 2024
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
The development of bifunctional photogenerated carrier-assisted electrocatalytic (PCA-EC) electrodes that operate with stability at large current-density remains a significant challenge. Herein, we demonstrate a simple sputtering-deposition process to synthesize a novel MnWO/FeCoNi Mott-Schottky heterojunction coating and deposit it on a pure Ti substrate to prepare high-performance PCA-EC electrodes, which exhibits enhanced light absorption range/intensity and rapidly separated photogenerated electron-hole pairs. This design allows photogenerated electrons to directly participate in the hydrogen evolution reaction (HER), while the strong oxidation of photogenerated holes significantly reduces the defect formation energy of active metals, thereby facilitating the rapid reconstruction of highly active Ni(FeCo)OOH/MnOOH species for the oxygen evolution reaction (OER).
View Article and Find Full Text PDFIn Situ Construction of SnS@SnO Heterostructure for Photo-Assisted Electrocatalysis of Oxygen Evolution Reaction.
Small
December 2024
Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, P. R. China.
Article Synopsis
- Photo-assisted electrocatalysis is a novel method for hydrogen generation that uses photocatalysts with electrocatalysts, improving efficiency;
- The study creates an in situ heterojunction SnS@SnO, which shows a degradation rate of 92.75% for methyl orange (MO) within 1 hour, significantly outperforming pure SnS;
- The synthesized FeNiS/SnS@SnO demonstrates enhanced oxygen evolution reaction (OER) performance, indicating the effective electron transfer and strong photo-response capabilities of the new material.
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