Citation: Zhidong Wei, Meiqi Xu, Junying Liu, Weiqi Guo, Zhi Jiang, Wenfeng Shangguan. Simultaneous visible-light-induced hydrogen production enhancement and antibiotic wastewater degradation using MoS₂@Zn_xCd_1-xS: Solid-solution-assisted photocatalysis[J]. Chinese Journal of Catalysis, ;2020, 41(1): 103-113. doi: S1872-2067(19)63479-0 shu

Simultaneous visible-light-induced hydrogen production enhancement and antibiotic wastewater degradation using MoS₂@Zn_xCd_1-xS: Solid-solution-assisted photocatalysis

Zhidong Wei ^a,b, ,
Meiqi Xu ^a,b ,
Junying Liu ^a,b ,
Weiqi Guo ^a,b ,
Zhi Jiang ^a,b ,
Wenfeng Shangguan ^a,b

a Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China;
b Center of Hydrogen Science, Shanghai Jiao Tong University, NO. 800, Dongchuan Road, Shanghai 200240, China

Received Date: 25 June 2019
Revised Date: 24 July 2019

Fund Project: We thank the National Natural Science Foundation of China (21773153) and the National Key Basic Research and Development Program (2018YFB1502001) for the financial support as well as the Funding support from Centre of Hydrogen Science, Shanghai Jiao Tong University, China.

In this study, a Zn_xCd_1-xS solid solution was successfully synthesized using a hydrothermal method. MoS₂ serving as a co-catalyst for hydrogen evolution was also prepared through a one-pot hydrothermal method. The structures, morphology, chemical states, and optical properties were characterized using powder X-ray diffraction, scanning electron microscopy, high-angle annular dark field-scanning transmission electron microscopy, elemental mapping, X-ray photoelectron spectroscopy, and UV-Vis diffuse reflection spectroscopy. Visible-light-driven photocatalytic experiments were conducted to simultaneously achieve hydrogen production and amoxicillin antibiotic wastewater degradation. The results indicated 8%MoS₂/Zn_xCd_1-xS achieves the best photocatalytic performance. The Zn_xCd_1-xS samples illustrated a superior performance to that of CdS, which can be attributed to a thermodynamic improvement. Based on the results of PL and TRPL analyses, the enhancement of the hydrogen production mechanisms can be ascribed to the prolonged separation process of the photocarriers. Furthermore, the degradation results were analyzed using the HPLC method and the possible degradation pathways were determined through the HPLC-MS techniques.
- Photocatalytic,
- Hydrogen energy,
- Antibiotic wastewater,
- Degradation,
- Simultaneous
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Simultaneous visible-light-induced hydrogen production enhancement and antibiotic wastewater degradation using MoS₂@Zn_xCd_1-xS: Solid-solution-assisted photocatalysis