Synthesis of Tb-doped ZnO/RGO nanocomposites and its enhanced photocatalytic activity under visible light irradiation

被引：11

作者：

Dong, Xiaoqian ^{[1
]}

Yu, Xiaochen ^{[1
]}

Zhang, Xu ^{[1
]}

Zhang, Zhehan ^{[1
]}

He, Xiao ^{[1
]}

Wei, Ruru ^{[1
]}

Bai, Youru ^{[1
]}

Fan, Jibin ^{[1
]}

机构：

[1] Changan Univ, Sch Mat Sci & Engn, Xian 710061, Peoples R China

来源：

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Tb-ZnO; RGO; Photocatalytic dye degradation; Nanocomposites; FACILE SYNTHESIS; DEGRADATION; PHOTODEGRADATION; HETEROJUNCTION; NANOHYBRIDS; FILMS;

D O I：

10.1016/j.diamond.2023.109765

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tb-ZnO/reduced graphene oxide (Tb-ZnO/RGO) nanocomposites were prepared by a simple one-step sol-vothermal method. The samples were characterized by XRD, SEM, XPS, BET, FT-IR, and Raman spectroscopy, and their photocatalytic activities toward different pollutants (RhB, MO, PR, and MB) degradation were eval-uated. Tb-ZnO/RGO nanocomposite shows enhanced photocatalytic activity with high kinetic constants (0.04 min-1) and good stability. Enhanced charge separation and migration have been analyzed using UV-Vis ab-sorption spectra, PL spectra, and EIS analysis. Improved photocatalytic activity can be ascribed to the smaller band gap, larger specific surface area (28.3478 m2/g) and more effective separation and transport of photo-generated carriers by Tb3+ and RGO. All the results show that the nanocomposite catalyst has a good application prospect in the degradation of pollutants.

引用

页数：13

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