欢迎光临常州大学环境与安全工程学院!

|常大主页|教师门户|学生门户|旧版回顾|ENGLISH


环境学院微信号

冯胜教授课题组在“Ceramics International ”上发表研究论文

   发布时间: 2019-12-09    访问次数: 10

One-pot synthesis of C-dotsmodified TiO2 nanosheets/UiO-66-NH2 with improved photocatalytic activity under visible light

 

Guiliang Zhu, Sheng Feng*, Jianying Chao, Wei Zheng, Cong Shao

Abstract

A simple one-pot method was employed to synthesize C-dots modified TiO2 nanosheets (NS)/UiO-66-NH2 for enhancing photocatalytic activity. Anatase TiO2 NS and UiO-66-NH2 were closely combined and C-dots were well modified on their surfaces. The photocatalytic activities of catalysts were assessed through photodegrading ketoprofen (10 mg/L) under visible light. C-dots/TiO2 NS/UiO-66-NH2 degraded 90% of ketoprofen in 80 min, and owned the higher kinetic rate than TiO2 NS (24 times) or TiO2 NS/UiO-66-NH2 (2.1 times). The results indicated that C-dots/TiO2 NS/UiO-66-NH2 exhibited the most superb visible-light photocatalytic activity. Besides, C-dots/TiO2 NS/UiO-66-NH2 showed good stability and reusability in four runs of degrading ketoprofen. The improved photocatalytic performance was caused by the heterostructure of TiO2 NS and UiO-66-NH2 and photoelectrical performance of C-dots, effectively absorbing visible light and promoting photoelectrons transfer.


Proposed visible-light photocatalytic mechanism of C-dots/TiO2 NS/UiO-66-NH2.

journal homepage:https://www.journals.elsevier.com/ceramics-international