期刊
CERAMICS INTERNATIONAL
卷 47, 期 21, 页码 30860-30868出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.07.268
关键词
CdS-CuS nanoparticles; TiO2 nanotube arrays; Pollutant treatment; Photocatalytic H-2 evolution; P-N heterojunction
资金
- Fund for Tianshan Young Scholars [2018Q031]
- Educational Foundation of Xinjiang Province [XJEDU2018Y060]
- Natural Science Foundation of Shandong Province [ZR2019QB023]
- National Natural Science Foundation of China [51402145]
TiO2 nanotube arrays (TiO2 NTs) were modified with CdS-CuS co-sensitizers to enhance photocatalytic performance and stability. The suitable composition of CdS-CuS showed improved pollutant removal and photocurrent/H-2 generation, indicating potential for environmental remediation and new energy development.
TiO2 nanotube arrays (TiO2 NTs) were regarded as the outstanding semiconductors for the photocatalytic application in waste water treatment and H-2 generation, and CdS nanoparticles as the visible light sensitizers were traditionally used to enhance the photocatalytic performance. In this paper, CdS-CuS co-sensitizers were deposited on TiO2 NTs by one-pot hydrothermal method, and the Cu/Cd ratio was changed to adjust the hybrid photocatalyst composition and electron transfer. The photocatalytic data indicated that suitable CdS-CuS composition could effectively enhance the photocatalytic pollutant removal and photocurrent/H-2 evolution and the hybrid photocatalyst also exhibited the high stability by the inhibition of CdS photocorrosion. The p-n heterojunction construction of TiO2 NTs/CdS-CuS benefited the solar response, photoelectron separation and photocatalytic reaction, and the photocatalytic mechanism and photoelectron transfer were investigated. The p-n heterojunctional photocatalyst is supposed to apply in environmental remediation and new energy development.
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