A bacteriophage can be used as a template for assembling catalytic nanostructures for the light-driven oxidation of water molecules.
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Anion vacancy engineered Cu/ZnInS-V/TiO-V S-scheme heterojunction for enhancing photocatalytic overall water splitting.
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National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming 650091 China; Southwest United Graduate School, Kunming 650091 China. Electronic address:
Heterojunction materials for photocatalytic overall water splitting (POWS) become popular in recent times. However, even in the superior S-scheme heterojunction, the two semiconductor materials still do not have an efficient activity to separate and migrate photogenerated carriers. To further improve the charge separation and enhance the activity of POWS, a novel S-scheme heterojunction photocatalyst, Cu/ZnInS-V/TiO-V, was synthesized using solvothermal and calcination methods.
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Nanomaterials (Basel)
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State Key Laboratory of Solidifcation Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
Semiconductor polymeric graphitic carbon nitride (g-CN) photocatalysts have garnered significant and rapidly increasing interest in the realm of visible light-driven hydrogen evolution reactions. This interest stems from their straightforward synthesis, ease of functionalization, appealing electronic band structure, high physicochemical and thermal stability, and robust photocatalytic activity. This review starts with the basic principle of photocatalysis and the development history, synthetic strategy, and structural properties of g-CN materials, followed by the rational design and engineering of g-CN from the perspectives of nano-morphological control and electronic band tailoring.
View Article and Find Full Text PDFPrecise Manipulation on the Structural Defects of Poly (Triazine Imide) Single Crystals for Efficient Photocatalytic Overall Water Splitting.
Angew Chem Int Ed Engl
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Fuzhou University, Chemistry, 523 Gongye Rd, Gulou, 350000, Fuzhou, CHINA.
Conjugated polymers, represented by polymeric carbon nitrides (PCNs), have risen to prominence as new-generation photocatalysts for overall water splitting (OWS). Despite considerable efforts, achieving highly crystalline PCNs with minimal structural defects remains a great challenge, and it is also difficult to examine the exact impact of complex defect states on OWS process, which largely limits their quantum efficiency. Herein, we devise a 'in-situ salt flux' assisted copolymerization protocol by using nitrogen-rich and nitrogen-deficient monomers to precisely manipulate the structural defects of poly (triazine imide) (PTI) single crystals.
View Article and Find Full Text PDFThermal decomposition synthesis of CuO on TiO NTs as promising photocatalysts for effective photoelectrocatalytic hydrogen evolution and pollutant removal.
Environ Res
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College of Civil Engineering, Hefei University of Technology, Hefei, 238000, China; Chinaland Solar Energy Co., Ltd., Hefei, 238000, China. Electronic address:
The preparation strategy is the important factor to obtain the effective photocatalyst, and the thermal decomposition could be used to prepare photocatalysts with high crystallinity and photoactivity. In this paper, thermal decomposition method was used to deposit CuO nanoparticles on TiO nanotube arrays (TiO NTs), and the TiO NTs/CuO exhibited remarkably high visible light absorption and photoelectrocatalytic performances toward dye degradation and Cr(VI) reduction. The potential degradation pathway and toxicities of rhodamine B (RhB) dyes and intermediates were investigated.
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Chemphyschem
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Friedrich-Schiller-University Jena, Institute of Physical Chemistry, Helmholtzweg 4, 7743, Jena, GERMANY.
The design and development of particulate photocatalysts has been an attractive strategy to incorporate earth-abundant metal ions to water splitting devices. Herein, we synthesized CoFe-Prussian blue (PB) coated ZnO origami core-shell nanostructures (PB@ZnO) with different mass ratio of PB components and investigated their photocatalytic water oxidation activities in the presence of an electron scavenger. Photocatalytic experiments reveal that the integration of PB on ZnO boosts the oxygen evolution rate by a factor of ~2.
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