Journal ArticleDOI
A novel electric-assisted photocatalytic technique using self-doped TiO2 nanotube films
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TLDR
In this paper , a novel electric assisted photocatalytic technique was developed to reduce the recombination of the carriers trapped by the defects induced by semiconductor doping in order to promote photogenerated electron fluxes and prevent charge recombination.Abstract:
Semiconductor doping is an effective strategy for improving the light absorption efficiency and the photogenerated carrier transport in photocatalysts. However, bulk defects induced by doping act as recombination centers, accelerating the recombination of carriers, which is detrimental to the photocatalytic performance. In this study, a novel electric-assisted photocatalytic technique was developed to reduce the recombination of the carriers trapped by the defects. The technique involves applying a low external voltage to a self-doped TiO2 nanotube film, without any electrolyte and counter electrode. The remarkable improvement in the charge carrier dynamics under the electric assistance is attributed to the significant promotion of photogenerated electron fluxes and prevention of charge recombination. The electric-assisted photocatalytic technique is compatible with a liquid- or a gas-phase reactive system, e.g., water splitting, H2O2 synthesis, and CO2 photoreduction. The technique is sufficiently advanced to allow scale-up of the photocatalytic process from laboratory scale to industrial-scale. read more
Citations
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Facile Synthesis of C3N4/NiIn2S4 Heterostructure with Novel Solar Steam Evaporation Efficiency and Photocatalytic H2O2 Production Performance
TL;DR: In this article , a simple method is proposed for the controllable synthesis of C3N4/NiIn2S4 heterojunction, by which can be achieved both the efficient evaporation of the solar interface and the photocatalytic production of H2O2.
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Polydopamine nanolayer assisted internal photo-deposition of CdS nanocrystals for stable cosensitized photoanode
Na Li,Lu Han,Hainan Zhang,Juntong Huang,Xudong Luo,Xibao Li,Yuanhao Wang,Weiqi Qian,Ya Nan Yang +8 more
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Tri-functional aerogel photocatalyst with an S-scheme heterojunction for the efficient removal of dyes and antibiotic and hydrogen generation.
Fenghe Sun,Da Xu,Yunrui Xie,Feng Liu,Wenling Wang,Hongqin Shao,Qianli Ma,Hui-Qun Yu,Wensheng Yu,Xiangting Dong +9 more
TL;DR: In this article , a 3D S-scheme S-gC3N4/TiO2/SiO 2/PAN aerogel heterojunction photocatalyst was designed and manufactured by combining electrospinning, calcination, hydrothermal and freeze-drying techniques.
Journal ArticleDOI
SnTa2O6: A novel CO2 reduction photocatalyst with nearly 100% CO selectivity
TL;DR: In this article , a novel SnTa2O6 nanosheet photocatalyst was synthesized via a simple melting heat treatment and first applied it to CO2 photoreduction with water.
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Evaluation of an ε-manganese (IV) oxide/manganese vanadium oxide composite catalyst enriched with oxygen vacancies for enhanced formaldehyde removal
TL;DR: In this paper , a novel ε-MnO2/Mn2V2O7 composite catalyst with a synergistic effect was synthesized on the basis of a thermal decomposition strategy.
References
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Journal ArticleDOI
Polymeric Photocatalysts Based on Graphitic Carbon Nitride
TL;DR: The photo-catalytic applications of g-C3N4 -based photocatalysts in the fields of water splitting, CO2 reduction, pollutant degradation, organic syntheses, and bacterial disinfection are reviewed, with emphasis on photocatalysis promoted by carbon materials, non-noble-metal coc atalysts, and Z-scheme heterojunctions.
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Band bending in semiconductors: chemical and physical consequences at surfaces and interfaces.
Zhen Zhang,John T. Yates +1 more
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Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4
Rengui Li,Fuxiang Zhang,Donge Wang,Jingxiu Yang,Jingxiu Yang,Mingrun Li,Jian Zhu,Jian Zhu,Xin Zhou,Hongxian Han,Can Li +10 more
TL;DR: The results show that the photogenrated electrons and holes can be separated between the different facets of semiconductor crystals, which may be useful in semiconductor physics and chemistry to construct highly efficient solar energy conversion systems.
Journal ArticleDOI
Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels.
TL;DR: Various cocatalysts, such as the biomimetic, metal-based,Metal-free, and multifunctional ones, and their selectivity for CO2 photoreduction are summarized and discussed, along with the recent advances in this area.
Journal ArticleDOI
Efficient Visible Light Nitrogen Fixation with BiOBr Nanosheets of Oxygen Vacancies on the Exposed {001} Facets
TL;DR: It is demonstrated that efficient fixation of N2 to NH3 can proceed under room temperature and atmospheric pressure in water using visible light illuminated BiOBr nanosheets of oxygen vacancies in the absence of any organic scavengers and precious-metal cocatalysts.
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