JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Environment
Immobilizing TiO2 Allows H2O2 to be Present at the Start and Enhances the Photodegradation of Acid Yellow 36 (AY-36)
Nditange ShigwedhaZhaozhe HuaJian Chen
Author information
JOURNALS RESTRICTED ACCESS

2006 Volume 39 Issue 4 Pages 475-480

Details
Abstract

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.

Information related to the author
© 2006 The Society of Chemical Engineers, Japan
Previous article Next article
feedback
Top