Nonthermal plasma assisted photocatalytic oxidation of dilute benzene

Journal of Chemical Sciences

Ch Subrahmanyam2²  E Linga Reddy1¹  J Karuppiah1¹  R Karvembu¹  L Sivachandiran1¹ 

[1] Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India$$;Department of Chemistry, Indian Institute of Technology, Hyderabad 502 205, India$$

关键词: Nonthermal plasma;    sintered metal fibres;    photocatalysis;    ozone decomposition;    VOC abatement.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Oxidative decomposition of low concentrations (50-1000 ppm) of diluted benzene in air was carried out in a nonthermal plasma (NTP) dielectric barrier discharge (DBD) reactor with the inner electrode made up of stainless steel fibres (SMF) modified with transition metal oxides in such a way to integrate the catalyst in discharge zone. Typical results indicate the better performance of MnO𝑥 and TiO2/MnO𝑥 modified systems, which may be attributed to the in situ decomposition of ozone on the surface of MnO𝑥 that may lead to the formation of atomic oxygen; whereas ultraviolet light induced photocatalytic oxidation may be taking place with TiO2 modified systems. Water vapour improved the selectivity to total oxidation.

【 授权许可】

Unknown