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Published in: Journal of Nanoparticle Research 10/2017

01-10-2017 | Research Paper

Polyacrylamide hydrogel as a template in situ synthesis of CdS nanoparticles with high photocatalytic activity and photostability

Authors: Jiangbing Yang, Jianping Gao, Xiaoxue Wang, Shunkang Mei, Ruiru Zhao, Chaoyue Hao, Yongli Wu, Xiangang Zhai, Yu Liu

Published in: Journal of Nanoparticle Research | Issue 10/2017

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Abstract

Porous polyacrylamide hydrogel (PAM) was prepared by polymerization at room temperature. Cadmium sulfide/polyacrylamide hydrogels (CdS/PAM) was synthesized by in situ loading CdS nanoparticles and used for photocatalytic decomposition of water for the first time. The size distribution of the loaded CdS nanoparticles is 3–12 nm. We studied the enhanced photocatalytic activity and photo-corrosion inhibition of CdS/PAM the compared with pure CdS and probed the mechanism of the improvement. In particular, the CdS/PAM prepared in 0.003 M CdCl2 solution exhibited the highest hydrogen production efficiency of 2.929 mmol g−1 h−1, about 79 times that of pure CdS. The results demonstrate that the formation of new N–Cd bond and high transmittance of CdS/PAM dramatically enhance photocatalytic activity. The electron cloud of nitrogen atom can attract holes and repel photogenerated electrons, which lowers the carrier recombination probability. The results also reveal that the excellent hydrophilicity of hydrogel plays an important role in the inhibition of photocorrosion. In addition, CdS/PAM is easily recycled and processed. The present work will pave a good way for the application of smart hydrogels in the field of photocatalytic hydrogen production.

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Appendix
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Metadata
Title
Polyacrylamide hydrogel as a template in situ synthesis of CdS nanoparticles with high photocatalytic activity and photostability
Authors
Jiangbing Yang
Jianping Gao
Xiaoxue Wang
Shunkang Mei
Ruiru Zhao
Chaoyue Hao
Yongli Wu
Xiangang Zhai
Yu Liu
Publication date
01-10-2017
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 10/2017
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-017-4048-7

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