首页|CdS sensitizes TiO_2 nanotubes arrays for photocatalytic degradation of water pollution

CdS sensitizes TiO_2 nanotubes arrays for photocatalytic degradation of water pollution

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  • NETL
  • NSTL
  • Springer Nature
Titanium dioxide nanotube arrays (TNAs) has shown great potential for applications in environmental pollution treatment and solar chemical energy conversion. Cadmium sulfide (CdS), also as a typical photocatalytically active semiconductor material, has a narrow forbidden bandgap energy of only 2.42 eV. The unique hollow tubular structure of titanium dioxide nanotubes, on the other hand, offers the possibility of CdS composite TNAs. In this study, TNAs were first prepared by a one-step anodic oxidation method under optimized conditions, and then the prepared TNAs were used as cathodes to deposit CdS on TNAs substrates by electrodeposition in an electrolyte containing sodium thiosulfate and cadmium chloride. The effects of electrochemical deposition voltage, reaction time, and the relationship between the ratios of S and Cd sources on the properties of CdS/TNAs composite structures were systematically investigated. The CdS/ TNAs with the best characterization performance were selected for photocatalytic degradation, and methylene blue was used to simulate organic pollutants. The results showed that CdS/TNAs had better photocatalytic activity compared with conventional TNAs. Based on this, the composite structure of CdS/TNAs by physical adsorption was also selected as a reference, and the results showed that the CdS/TNAs produced by electrochemical deposition had better photocatalytic performance and chemical stability. It provides a feasible way in water pollution treatment.

Xudong Xiong、Zhenkun Duan、Yang Liu、Xiaobo Xiong、Shengkang Zhang、Yongqian Wang

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Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, 388#Lumo Road, Wuhan 430074, People's Republic of China

The key Laboratory of Forensic Science in Hubei Province, Hubei University of Police, 99#South Mud Bay Avenue, Wuhan 430075, People's Republic of China

Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, 388#Lumo Road, Wuhan 430074, People's Republic of China||The key Laboratory of Forensic Science in Hubei Province, Hubei University of Police, 99#South Mud Bay Avenue, Wuhan 430075, People's Republic of China

2023

10.1007/s10854-023-11685-z

Journal of materials science. Materials in electronics

Journal of materials science. Materials in electronics

ISSN：0957-4522
年,卷(期)：2023.34(36)
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