Journal ArticleDOI
Recent Progress in Two-Dimensional Oxide Photocatalysts for Water Splitting.
Shintaro Ida,Tatsumi Ishihara +1 more
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TLDR
In this system, a certain type of 2D oxide nanosheet shows high activity without co-catalyst loading and the driving force of the carrier transfer to the reaction sites was found to be the potential gradient generated by the Nanosheet junction.Abstract:
This Perspective focuses on the photocatalytic activity of two-dimensional (2D) oxide and nitrogen-doped oxide crystals and the effective use of 2D photocatalysts for understanding the mechanism of the water splitting reaction. Strategies for improving the activities of 2D photocatalysts are slightly different from those of bulk photocatalysts. Although it is well-known that a photocatalyst without co-catalyst loading has low activity for hydrogen production from water, a certain type of 2D oxide nanosheet shows high activity without co-catalyst loading. It is difficult to determine what factors contribute to this separation of oxidation and reduction sites of water because there are many factors on the reaction surface. A nanosheet p-n junction surface is an ideal surface for understanding the carrier transfer during the photocatalytic reaction. In this system, the driving force of the carrier transfer to the reaction sites was found to be the potential gradient generated by the nanosheet junction.read more
Citations
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Computational study of the electronic, optical and photocatalytic properties of single-layer hexagonal zinc chalcogenides
TL;DR: In this paper, the authors investigated the stabilities, band structures and optical properties of single-layer hexagonal zinc chalcogenides (h-ZnX, X = S, Se, and Te) by performing first-principles calculations.
Journal ArticleDOI
Two-Dimensional Oxides: Recent Progress in Nanosheets
TL;DR: In this paper, the role of oxides in this field of materials deserves a closer look due to their availability, durability and further advantages, and recent progress in oxidic nanosheets is highlighted and the benefit of 2D oxides for applications discussed in-depth.
Journal ArticleDOI
Synthesis and characterization of cadmium-bismuth microspheres for the catalytic and photocatalytic degradation of organic pollutants, with antibacterial, antioxidant and cytotoxicity assay.
Faiza Qureshi,Muhammad Nawaz,Suriya Rehman,Sarah Ameen Almofty,Sumaira Shahzad,Veeranoot Nissapatorn,Muhammad Taha +6 more
TL;DR: The effective preparation method of CdS-Bi2S3 could be useful to design and fabricate the novel photocatalyst which may have several applications in the field of catalysis and in the medicine.
References
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Journal ArticleDOI
Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides
TL;DR: Film and powders of TiO2-x Nx have revealed an improvement over titanium dioxide (TiO2) under visible light in optical absorption and photocatalytic activity such as photodegradations of methylene blue and gaseous acetaldehyde and hydrophilicity of the film surface.
Journal ArticleDOI
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Journal ArticleDOI
Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst
TL;DR: The findings suggest that the use of solar energy for photocatalytic water splitting might provide a viable source for ‘clean’ hydrogen fuel, once the catalytic efficiency of the semiconductor system has been improved by increasing its surface area and suitable modifications of the surface sites.
Journal ArticleDOI
Photocatalyst releasing hydrogen from water
Kazuhiko Maeda,Kentaro Teramura,Daling Lu,Tsuyoshi Takata,Nobuo Saito,Yasunobu Inoue,Kazunari Domen +6 more
TL;DR: An advance in the catalysis of the overall splitting of water under visible light is described: the new catalyst is a solid solution of gallium and zinc nitrogen oxide, modified with nanoparticles of a mixed oxide of rhodium and chromium, which functions as a promising and efficient photocatalyst in promoting the evolution of hydrogen gas.
Journal ArticleDOI
TiO2-Graphene Nanocomposites. UV-Assisted Photocatalytic Reduction of Graphene Oxide
TL;DR: The photocatalytic methodology not only provides an on-demand UV-assisted reduction technique but also opens up new ways to obtain photoactive graphene-semiconductor composites.
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