Journal ArticleDOI
Sulfur vacancies engineered over Cd0.5Zn0.5S by Yb3+/Er3+ co-doping for enhancing photocatalytic hydrogen evolution
Ping Mu,Man Zhou,Kai Yang,Chensheng Zhou,Yuan Mi,Yu Zhenzhen,Kangqiang Lu,Zhengquan Li,Shaobo Ouyang,Weiya Huang,Changlin Yu +10 more
TLDR
In this paper, a co-doped bulk Cd0.5Zn 0.5S (CZS) was fabricated by a simple hydrothermal process, and used for evaluating the catalytic activity for aquatic hydrogen production under visible light irradiation.Abstract:
Using ion doping to engineer sulfur vacancies over metal sulfides is an effective method to improve photocatalytic properties, such vacancies form the center of the electron-captured state to promote the separation and transfer of photogenerated carriers. In this research, Yb/Er co-doped bulk Cd0.5Zn0.5S (CZS) was fabricated by a one-step simple hydrothermal process, and used for evaluating the catalytic activity for aquatic hydrogen production under visible light irradiation. The results showed that the Cd0.5Zn0.5S:Yb(15%), Er obtained exhibited a higher efficient photocatalytic activity of hydrogen evolution, in which the efficiency of Cd0.5Zn0.5S:Yb(15%), Er (422.0 μmol g−1 h−1) was 2.7 times higher than that of bare Cd0.5Zn0.5S (154.7 μmol g−1 h−1). This can be attributed to the augmented active surface area, the broadened spectral absorption of visible light and the facilitation of the separated efficiency of the photogenerated carriers. This finding provides a simple way to activate the metal-chalcogenides with S-vacancies for optimizing the photocatalytic performance.read more
Citations
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Constructing 0D/1D Bi2S3/Sb2S3 Z-scheme heterojunctions for efficient visible-light-driven degradation of dyes, Cr6+ reduction and H2O2 production
Xiangwei Li,Kai-Di Yang,Fulin Wang,Kaiyang Shi,Weiya Huang,Kangqiang Lu,Changlin Yu,Xiaobin Liu,M. Zou +8 more
TL;DR: In this article , the 0D/1D Bi2S3/Sb2S-3 Z-scheme heterojunctions were prepared via a simple hydrothermal method, which can efficiently promote charge separation/shift for the improvement of photocatalytic performances.
Journal ArticleDOI
One-Pot Synthesis of N-Doped NiO for Enhanced Photocatalytic CO2 Reduction with Efficient Charge Transfer
Fuling Wang,Zhenzhen Yu,Kaiyang Shi,Xiangwei Li,Kangqiang Lu,Weiya Huang,Changlin Yu,Kai-Di Yang +7 more
TL;DR: In this paper , a one-pot molten-salt method was used for the preparation of nitrogen-doped NiO semiconductors for photocatalytic CO2 reduction and showed that nitrogen doping enhanced the adsorption of CO2 on NiO and increased the separation of photogenerated carriers on the NiO.
Journal ArticleDOI
Cu-doped TiO2 nanofibers coated with 1T MoSe2 nanosheets providing a conductive pathway for the electron separation in CO2 photoreduction
TL;DR: In this article , a hybrid-phase MoSe2 (1T-2H MoSe 2) nanosheet-coated Cu-doped TiO2 nanofibers (Cu-TiO2 NFs) were prepared using a solvothermal method.
Journal ArticleDOI
CdxZn1-xS with bulk-twinned homojunctions and rich sulfur vacancies for efficient photocatalytic hydrogen production
TL;DR: In this article , the authors synthesized novel nanocrystal solid solutions of twinned wurtzite/zinc blende, CdxZn1-xS, having rich sulfur vacancies.
References
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