Citation: Jiaqi Wang, Qingrong Qian, Qinghua Chen, Xin-Ping Liu, Yongjin Luo, Hun Xue, Zhaohui Li. Significant role of carbonate radicals in tetracycline hydrochloride degradation based on solar light-driven TiO₂-seashell composites: Removal and transformation pathways[J]. Chinese Journal of Catalysis, ;2020, 41(10): 1511-1521. doi: S1872-2067(19)63525-4 shu

Significant role of carbonate radicals in tetracycline hydrochloride degradation based on solar light-driven TiO₂-seashell composites: Removal and transformation pathways

a College of Environmental Science and Engineering, Fujian Key Laboratory of Pollution Control&Resource Reuse, Fujian Normal University, Fuzhou 350007, Fujian, China;
b Fuqing Branch of Fujian Normal University, Fuqing 350300, Fujian, China;
c State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, Fujian, China

Received Date: 26 January 2020
Revised Date: 3 March 2020

Fund Project: This work was supported by the National Natural Science Foundation of China (21875037, 51502036), and the National Key R&D Program of China (2016YFB0302303).

TiO₂-seashell composites prepared via a sol-gel method were used to generate carbonate radicals (·CO₃^-) under solar light irradiation.·CO₃^-, a selective radical, was employed to degrade the target tetracycline hydrochloride contaminant. A series of characterizations was carried out to study the structure and composition of the synthesized TiO₂-seashell composite. This material exhibits excellent solar light-driven photochemical activity in the decomposition of tetracycline hydrochloride. The possible pathway and mechanism for the photodegradation process were proposed on the basis of high-resolution electrospray ionization time-of-flight mass spectrometry experiments. Finally, we investigated the reusability of the TiO₂-seashell composite. This study is expected to provide a new facile pathway for the application of·CO₃^- radicals to degrade special organic pollutants in water.
- TiO₂-seashell,
- Carbonate radical,
- Photochemistry,
- Tetracycline hydrochloride,
- Mechanism
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Significant role of carbonate radicals in tetracycline hydrochloride degradation based on solar light-driven TiO2-seashell composites: Removal and transformation pathways

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通讯作者: 陈斌, bchen63@163.com

Significant role of carbonate radicals in tetracycline hydrochloride degradation based on solar light-driven TiO₂-seashell composites: Removal and transformation pathways