Sonochemical synthesis and photocatalytic activity of meso- and macro-porous TiO(2) for oxidation of toluene

Yang Liu; Yan Li; Yuntao Wang; Lei Xie; Jie Zheng; Xingguo Li

doi:10.1016/j.jhazmat.2007.04.088

Sonochemical synthesis and photocatalytic activity of meso- and macro-porous TiO(2) for oxidation of toluene

J Hazard Mater. 2008 Jan 15;150(1):153-7. doi: 10.1016/j.jhazmat.2007.04.088. Epub 2007 Apr 24.

Authors

Yang Liu¹, Yan Li, Yuntao Wang, Lei Xie, Jie Zheng, Xingguo Li

Affiliation

¹ Beijing National Laboratory for Molecular Sciences (BNLMS) (The State Key Laboratory of Rare Earth Materials Chemistry and Applications), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

PMID: 17560714
DOI: 10.1016/j.jhazmat.2007.04.088

Abstract

Meso-and macro-porous TiO(2) were synthesized by ultrasonic induced solvothermal method. Octadecylamine as a soft template was used to direct the formation of porous structure. The as-prepared porous TiO(2) was characterized by low angle and wide angle X-ray diffraction, N(2) adsorption-desorption isotherms and BET surface area. The energy influence of ultrasound and heat and concentration of nitric acid for post extraction on formation of porous structure were investigated. The photocatalytic activities of TiO(2) were investigated by degrading toluene gas under UV light. The results revealed that proper energy facilitates the formation of porous structure and too low concentration of nitric acid cannot extract template from pores. The photocatalytic activities of TiO(2) with porous structure are higher than those of nonporous ones.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
Nitric Acid
Oxidation-Reduction
Photochemistry / methods*
Porosity
Titanium / chemistry*
Toluene / chemistry
Toluene / metabolism*
Ultrasonics
X-Ray Diffraction

Substances

titanium dioxide
Toluene
Nitric Acid
Titanium