光降解
光催化
可见光谱
锐钛矿
光化学
材料科学
降级(电信)
激进的
白光
化学
催化作用
光电子学
有机化学
计算机科学
电信
作者
Suqing Wu,Xueyan Li,Yanqin Tian,Yan Lin,Yun Hang Hu
标识
DOI:10.1016/j.cej.2020.126747
摘要
As an emerging semiconductor different from regular white TiO2, black TiO2 has attracted intensive attention on visible light driven photocatalysis for degrading dyes, but rarely for degradation of antibiotics. In this study, black anatase-TiO2 was demonstrated to be an effective catalyst for tetracycline (TC) visible light photodegradation. 66.2% removal efficiency of TC was achieved over black TiO2 under visible light illumination, while white TiO2 and N-doped TiO2 exhibited 43.4% and 59.6% removal efficiencies, respectively. Furthermore, only ⋅O2− radicals played an important role in TC photodegradation over white TiO2, whereas both ⋅O2− and h+ were responsible for the degradation over black TiO2 and N-doped TiO2. Different from white TiO2 for visible light photocatalytic TC degradation that follows photosensitization, the visible light photodegrataion over black TiO2 is due to photoexcitation.
科研通智能强力驱动
Strongly Powered by AbleSci AI