title: Double-Shelled CdS- and CdSe-Cosensitized ZnO Porous Nanotube Arrays for Superior Photoelectrocatalytic Applications.
abstract: The effective separation and transport of photoinduced electron-hole pairs in photoanodes is of great significance to photoelectrochemical and catalytic performance. Here, a facile and effective two-step strategy is developed to fabricate double-shelled ZnO/CdS/CdSe porous nanotube photoanodes from ZnO nanorod arrays (NRAs). Surprisingly, after the process of the deposition of CdS and CdSe, the ZnO nanorod arrays are partially dissolved, resulting in the formation of ZnO/CdS/CdSe porous nanotube arrays (NTAs). By virtue of their unique porous nanotube structure and cosensitization effect, the ZnO/CdS/CdSe porous NTAs show superior photoelectrochemical water-splitting performance and organic-pollutant-degradation ability under visible light irradiation, as well as excellent long-term photostability.
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Pan-Yong
authors.initials: PY
authors.lastname: Kuang
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Yu-Zhi
authors.initials: YZ
authors.lastname: Su
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Kang
authors.initials: K
authors.lastname: Xiao
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Zhao-Qing
authors.initials: ZQ
authors.lastname: Liu
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Nan
authors.initials: N
authors.lastname: Li
authors.affiliation: †School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou 510006, PR China.
authors.forename: Hong-Juan
authors.initials: HJ
authors.lastname: Wang
authors.affiliation: ‡State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
keywords: ZnO/CdS/CdSe; cosensitization effect; double-shelled; organic pollutants degradation; porous nanotube