Citation: Hongmei Zhao, Yunfei He, Meiying Liu, Ran Wang, Yunhe Li, Wansheng You. Biomolecule-assisted, cost-effective synthesis of a Zn_0.9Cd_0.1S solid solution for efficient photocatalytic hydrogen production under visible light[J]. Chinese Journal of Catalysis, ;2018, 39(3): 495-501. doi: 10.1016/S1872-2067(17)62946-2 shu

Biomolecule-assisted, cost-effective synthesis of a Zn_0.9Cd_0.1S solid solution for efficient photocatalytic hydrogen production under visible light

School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China

Received Date: 22 October 2017
Revised Date: 19 November 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (21573100, 21573099) and the Open Project of State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (N-14-04).

A series of alloyed Zn-Cd-S solid solutions with a cubic zinc blende structure were fabricated hydrothermally with the assistance of L-cystine under mild conditions. The products were characterized by XRD, TEM, HRTEM, XPS, UV-vis, and BET techniques, and the photocatalytic performance for the reduction of water to H₂ on the solid solutions was evaluated in the presence of S^2-/SO₃^2- as hole scavengers under visible light illumination. Among all the samples, the highest photocatalytic activity was achieved over Zn_0.9Cd_0.1S with a rate of 4.4 mmol h^-1 g^-1, even without a co-catalyst, which far exceeded that of CdS. Moreover, Zn_0.9Cd_0.1S displayed excellent anti-photocorrosion properties during the photoreduction of water into H₂. The enhancement in the photocatalytic performance was mainly attributed to the efficient charge transfer in the Zn_0.9Cd_0.1 alloyed structure and the high surface area. This work provides a simple, cost-effective and green technique, which can be generalized as a rational preparation route for the large-scale fabrication of metal sulfide photocatalysts.
- Zn_0.9Cd_0.1S,
- L-cystine,
- Green synthesis,
- Photocatalytic hydrogen production
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沈阳化工大学材料科学与工程学院沈阳 110142

Biomolecule-assisted, cost-effective synthesis of a Zn0.9Cd0.1S solid solution for efficient photocatalytic hydrogen production under visible light

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通讯作者: 陈斌, bchen63@163.com

Biomolecule-assisted, cost-effective synthesis of a Zn_0.9Cd_0.1S solid solution for efficient photocatalytic hydrogen production under visible light