Phenol degradation by TiO2 photocatalytic technology

Author

Zhang, Yi ; Cong, Yanqing ; Wang, Qi

Author_Institution

Dept. of Environ. Eng., Zhejiang Univ., Hangzhou, China

fYear

2011

fDate

24-26 June 2011

Firstpage

5145

Lastpage

5148

Abstract

The use of TiO₂ for photocatalytic degradation of phenol solution was investigated. The effects of operating parameters such as catalyst dosage, oxidant dosage, the initial phenol concentration, and pH of the solution on photodegradation process were examined. The efficiency of photocatalytic degradation is the highest as pH=6, photocatalyst TiO₂ dosage 0.2 g·L^-1, 20 min UV irradiation, the efficiency of photocatalytic degradation can be 80%. Photodegradation followed the first-order kinetics. The relationship between photodegradation rate and phenol concentration can be described by the formula kaap=-0.0027C0+0.0844.

Keywords

catalysis; chemical engineering; photochemistry; reaction kinetics; titanium compounds; ultraviolet radiation effects; TiO₂; UV irradiation; catalyst dosage; first-order kinetics; initial phenol concentration; oxidant dosage; phenol solution; photocatalytic degradation; time 20 min; Chemical industry; Chemicals; Degradation; Kinetic theory; Purification; Suspensions; Titanium; TiO2; degradation kinetic; phenol; photocatalysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5965473

Filename

5965473