Journal ArticleDOI
Replacement/Etching Route to ZnSe Nanotube Arrays and Their Enhanced Photocatalytic Activities
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TLDR
In this paper, the photocatalytic activities of the as-prepared ZnSe nanotube arrays have been studied for the degradation of methyl orange aqueous solution and compared with those of ZnO/ZnSe core/sheath nanorod arrays and the intermediates.Abstract:
Well-aligned ZnSe nanotube arrays with diameters of 300–400 nm and wall thicknesses of 60–70 nm have been controllably prepared based on a replacement/etching method, with ZnO nanorod arrays on zinc substrate as sacrificial templates. An obvious difference of the solubility product (Ksp) between the ZnSe wall and ZnO core materials is crucial for the direct replacement of one type of anions by the other. Ammonia as the chemical etching agent is also important for dissolving ZnO nanorod core. The photocatalytic activities of the as-prepared ZnSe nanotube arrays have been studied for the degradation of methyl orange aqueous solution and compared with those of ZnO nanorod arrays and the intermediates including ZnO/ZnSe core/sheath nanorod arrays and partially dissolved ZnO core/ZnSe sheath nanorod arrays, respectively. The results indicate that ZnSe nanotube arrays exhibit superior photocatalytic performance to the other three nanostructured arrays, which can be mainly attributed to their full hollow interio...read more
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In-situ synthesis of direct solid-state Z-scheme V2O5/g-C3N4 heterojunctions with enhanced visible light efficiency in photocatalytic degradation of pollutants
TL;DR: In this article, a direct solid-state Z-scheme V2O5/g-C3N4 heterojunctions were synthesized via a facile in-situ growth strategy for the first time.
Journal ArticleDOI
In Situ Microwave-Assisted Synthesis of Porous N-TiO2/g-C3N4 Heterojunctions with Enhanced Visible-Light Photocatalytic Properties
TL;DR: In this article, an in situ microwave-assisted synthesis approach has been developed to prepare N-TiO2/g-C3N4 composites using H2TiO3 as the reactant and NH3·H2O as the N-doping source.
Journal ArticleDOI
One-dimensional nanostructure based materials for versatile photocatalytic applications
TL;DR: In this article, a review of the applications of 1D-based nanocomposites in photocatalysis, including nonselective processes for the degradation of pollutants, direct solar energy conversion to storable fuels and selective transformations for organic synthesis, is presented.
Journal ArticleDOI
AgCl/Ag/g-C3N4 Hybrid Composites: Preparation, Visible Light-Driven Photocatalytic Activity and Mechanism
Yongchao Bao,Kezheng Chen +1 more
TL;DR: The ternary plasmonic AgCl/Ag/g-C3N4 photocatalysts were successfully fabricated by a modified deposition–precipitation method, through which Ag/AgCl nanoparticles were evenly dispersed on the surface of g-C 3N4.
Journal ArticleDOI
Au decorated hollow ZnO@ZnS heterostructure for enhanced photocatalytic hydrogen evolution: The insight into the roles of hollow channel and Au nanoparticles
Dandan Ma,Jian-Wen Shi,Diankun Sun,Yajun Zou,Linhao Cheng,Chi He,Hongkang Wang,Chunming Niu,Lianzhou Wang +8 more
TL;DR: In this paper, a new type of Au nanoparticles (NPs) decorated hollow flower-like ZnO@ZnS (HZOS) heterostructure is elaborately designed as efficient photocatalyst for water splitting application.
References
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Degradation of paracetamol in aqueous solutions by TiO2 photocatalysis
TL;DR: A kinetic equation describing paracetamol photocatalytic degradation with various process parameters is obtained and it is shown that in the presence of TiO2, much faster photodegradation of par acetamol and effective mineralization occurred.
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Single-Crystalline Scroll-Type Nanotube Arrays of Copper Hydroxide Synthesized at Room Temperature
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Synthesis, photoelectric properties and photocatalytic activity of the Fe2O3/TiO2 heterogeneous photocatalysts
TL;DR: It is demonstrated that the formation of heterojunctions between Fe(2)O(3) and TiO( 2) for Fe(3)/TiO(2%) composites was pivotal for improving the separation and thus restraining the recombination of photogenerated electrons and holes, which accounts for the enhancement of photocatalytic activity.