Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution

In this work, we report the construction of three-dimensional (3D) CdS nanosphere/graphene networks by a one-step hydrothermal self-assembly route. The 3D graphene networks not only enhance the light scattering, thanks to the interconnected 3D architecture, but also improve the crystallinity of depo...

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Main Authors: Wang, Zhijian, Liu, Zhi, Chen, Jiazang, Yang, Hongbin, Luo, Jianqiang, Gao, Jiajian, Zhang, Junming, Yang, Cangjie, Jia, Suping, Liu, Bin
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/140239
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1402392020-05-27T08:18:17Z Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution Wang, Zhijian Liu, Zhi Chen, Jiazang Yang, Hongbin Luo, Jianqiang Gao, Jiajian Zhang, Junming Yang, Cangjie Jia, Suping Liu, Bin School of Chemical and Biomedical Engineering Engineering::Chemical engineering CdS Nanosphere 3D Graphene Network In this work, we report the construction of three-dimensional (3D) CdS nanosphere/graphene networks by a one-step hydrothermal self-assembly route. The 3D graphene networks not only enhance the light scattering, thanks to the interconnected 3D architecture, but also improve the crystallinity of deposited CdS nanospheres, and at the same time provide a direct electron pathway to quickly separate the photogenerated electron-hole pairs from CdS, which thus dramatically improve the photocatalytic activity. The optimized 3D CdS nanosphere/graphene networks with 2 wt% of graphene could produce molecular hydrogen at a rate of 2310 µmol gcatalyst−1 h−1 under visible-light illumination (λ > 400 nm). ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) 2020-05-27T08:18:17Z 2020-05-27T08:18:17Z 2018 Journal Article Wang, Z., Liu, Z., Chen, J., Yang, H., Luo, J., Gao, J., . . . Liu, B. (2019). Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution. Journal of Energy Chemistry, 31, 34-38. doi:10.1016/j.jechem.2018.05.006 2095-4956 https://hdl.handle.net/10356/140239 10.1016/j.jechem.2018.05.006 2-s2.0-85047370959 31 34 38 en Journal of Energy Chemistry © 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Chemical engineering
CdS Nanosphere
3D Graphene Network
spellingShingle Engineering::Chemical engineering
CdS Nanosphere
3D Graphene Network
Wang, Zhijian
Liu, Zhi
Chen, Jiazang
Yang, Hongbin
Luo, Jianqiang
Gao, Jiajian
Zhang, Junming
Yang, Cangjie
Jia, Suping
Liu, Bin
Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
description In this work, we report the construction of three-dimensional (3D) CdS nanosphere/graphene networks by a one-step hydrothermal self-assembly route. The 3D graphene networks not only enhance the light scattering, thanks to the interconnected 3D architecture, but also improve the crystallinity of deposited CdS nanospheres, and at the same time provide a direct electron pathway to quickly separate the photogenerated electron-hole pairs from CdS, which thus dramatically improve the photocatalytic activity. The optimized 3D CdS nanosphere/graphene networks with 2 wt% of graphene could produce molecular hydrogen at a rate of 2310 µmol gcatalyst−1 h−1 under visible-light illumination (λ > 400 nm).
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Wang, Zhijian
Liu, Zhi
Chen, Jiazang
Yang, Hongbin
Luo, Jianqiang
Gao, Jiajian
Zhang, Junming
Yang, Cangjie
Jia, Suping
Liu, Bin
format Article
author Wang, Zhijian
Liu, Zhi
Chen, Jiazang
Yang, Hongbin
Luo, Jianqiang
Gao, Jiajian
Zhang, Junming
Yang, Cangjie
Jia, Suping
Liu, Bin
author_sort Wang, Zhijian
title Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
title_short Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
title_full Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
title_fullStr Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
title_full_unstemmed Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
title_sort self-assembly of three-dimensional cds nanosphere/graphene networks for efficient photocatalytic hydrogen evolution
publishDate 2020
url https://hdl.handle.net/10356/140239
_version_ 1681059449504006144