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Simultaneous formation of a C/N-TiO2 hollow photocatalyst with efficient photocatalytic performance and recyclability

Herein, we report a unique approach towards the preparation of C-modified and N-doped TiO2 hollow spheres (C/N-TiO2). TEM, SEM, and XPS analyses were used to confirm that the carbon and nitrogen co-decorated TiO2 photocatalyst was formed. Carbon-decoration improves the visible-light absorption and s...

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Published in:Chinese journal of catalysis 2019-05, Vol.40 (5), p.765-775
Main Authors: Xiao, Yingguan, Sun, Xiaodong, Li, linyu, Chen, Juanrong, Zhao, Shidong, Jiang, Caiguo, Yang, Luyao, Cheng, Li, Cao, Shunsheng
Format: Article
Language:English
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Summary:Herein, we report a unique approach towards the preparation of C-modified and N-doped TiO2 hollow spheres (C/N-TiO2). TEM, SEM, and XPS analyses were used to confirm that the carbon and nitrogen co-decorated TiO2 photocatalyst was formed. Carbon-decoration improves the visible-light absorption and speeds up the separation of the photo-generated electron-hole pairs. C/N-TiO2 not only narrows the band gap of TiO2, but also exhibits excellent photocatalytic activity for the degradation of tetracycline and tetracycline hydrochloride. In addition, the C/N-TiO2 photocatalyst shows excellent recyclability for water decontamination, making it a promising candidate to purify aquatic contaminants. Carbon-modified and N-doped TiO2 (C/N-TiO2) was simultaneously synthesized. The photocatalytic properties can be adjusted by changing the shell thickness of the C/N-TiO2 hollow spheres. C/TiO2 shows enhanced photocatalytic performance for the degradation of tetracycline.
ISSN:1872-2067
1872-2067
DOI:10.1016/S1872-2067(19)63286-9