Study of the photodegradation of 2-chlorobenzoic acid by TiO2 and the effects of eutrophicated water on the reaction

Saudi Journal of Biological Sciences

Yanyan Ji¹  Wang Chang²  Wu Zhang²  Qingzhu Jia²  Nan Shen³ 

[1] Corresponding author.;College of Marine and Environment Science, Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin Marine Environmental Protection and Restoration Technology Engineering Center, Tianjin University of Science and Technology, Tianjin 300457, China;School of Environmental and Chemical Engineering, State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China;

关键词: Degradation of 2-CBA;    Eutrophicated water;    Photocatalytic;   

DOI  :  

来源: DOAJ

【 摘 要 】

The photodegradation of 2-chlorobenzoic acid (2-CBA) in suspensions of TiO2 was examined under different operational parameters. The optimal condition could be obtained through the experiment, i.e. that the concentration of 2-CBA was 30 mg/L and the dosing quantity of TiO2 was 0.01 g under UV light in the case of pH 3.5. Above reaction process was in accordance with first order kinetics model. The influence on photocatalytic degradation caused by typical anions in eutrophicated water body such as NO3− and H2PO4− was explored in this work, which revealed that both two anions had inhibitory effect on the degradation process. In addition, alcohol was introduced into the process to identify the degradation mechanism of 2-CBA with TiO2, and the reaction route of 2-CBA could be predicted through the analysis on the intermediate.

【 授权许可】

Unknown