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The synthesis and enhanced photocatalytic activity of heterostructure BiOCl/TiO2 nanofibers composite for tetracycline degradation in visible light
Journal of Dispersion Science and Technology ( IF 2.2 ) Pub Date : 2020-07-29 , DOI: 10.1080/01932691.2020.1795669
Sarenqiqige Bao 1, 2 , Haiou Liang 1, 2 , Chunping Li 1, 2 , Jie Bai 1, 2
Affiliation  

Abstract

Heterojunction of TiO2 nanoparticles and BiOCl nanosheets grown on the carbon nanofibers (CNFs) were prepared by simply process that combine of electrospinning, solvothermal, and calcine. The photocatalytic activity of the as-obtained samples was evaluated by photodegradation of tetracycline (TC) in visible light irradiation (λ ≥ 420 nm). Compared with CNFs and TiO2/CNFs, BiOCl/TiO2/CNFs composites performed the best photocatalytic degradation performance (82%) and good stability. Moreover, the degradation rates of Norfloxacin, Ciprofloxacin, and Oxytetracycline are all more than 90%. Finally, trapping experiments were carried out, and a possible photocatalytic degradation mechanism was proposed.



中文翻译:

可见光降解四环素异质结构BiOCl/TiO2纳米纤维复合材料的合成及光催化活性增强

摘要

TiO 2纳米颗粒的异质结和生长在碳纳米纤维(CNF)上的BiOCl纳米片是通过简单的结合静电纺丝、溶剂热和煅烧的工艺制备的。通过在可见光照射(λ≥420  nm)下四环素(TC)的光降解来评估所获得样品的光催化活性。与CNFs和TiO 2 /CNFs相比,BiOCl/TiO 2 /CNFs复合材料表现出最好的光催化降解性能(82%)和良好的稳定性。而且,诺氟沙星、环丙沙星、土霉素的降解率均在90%以上。最后,进行了捕获实验,并提出了可能的光催化降解机制。

更新日期:2020-07-29
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