Immobilizing TiO2 Allows H2O2 to be Present at the Start and Enhances the Photodegradation of Acid Yellow 36 (AY-36)

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Zhaozhe Hua¹  Jian Chen¹  Nditange Shigwedha¹ 

[1] Laboratory of Environmental Biotechnology, School of Biotechnology, Southern Yangtze University

关键词: Recombination;    Immobilized TiO2;    H2O2;    Electron-Hole Pair;    Acid Yellow 36;   

DOI  :  10.1252/jcej.39.475

来源: Maruzen Company Ltd

【 摘 要 】

References(18)Cited-By(6)The metallic semiconductor of TiO2 was immobilized in thin-film during UV photodegradation of AY-36. Immobilizing the catalyst allowed H2O2 to be present at the start of photodegradation without fear of recombination, electron band competition, and destruction of immobilized photocatalyst. The photodegradation of AY-36 was improved by 90%. Decolorization in the present method was begun more slowly but by 75 min, no difference was observed. An enzymatic method has been conducted to accurately measure the formation of extra-H2O2 concentration and its decomposition. The pH needed no adjustments; it increased slightly instead of decreasing as was seen in the previously tried AOP methods. This method has the potential of both increasing degradation and slightly reducing costs in practice.

【 授权许可】

Unknown