Application of a semiconductor oxide-based catalyst in heterogeneous wastewater treatment: A green technology approach

Collin Glen Joseph Anthony Joseph, and Liew, Sharain Yen Ling and Krishnaiah, Duduku and Awang Bono, (2012) Application of a semiconductor oxide-based catalyst in heterogeneous wastewater treatment: A green technology approach. Journal of Applied Sciences, 12 (18). pp. 1966-1971. ISSN 1812-5654

[img]
Preview
Text
Application_of_a_semiconductor_.pdf

Download (45kB) | Preview

Abstract

The use of chlorine bleaching in study and pulp industry has resulted in chlorinated phenol contaminated wastewater from that industry. A new wastewater treatment process, sonophotodegradation of 2,4,6-trichlorophenol (TCP) in a heterogeneous aqueous system was investigated and reported in this study. TCP was degraded with ultrasonic or ultraviolet irradiation or a combination of both, in the presence of titanium dioxide semiconductor catalyst (anatase and/or rutile), in order to study the effectiveness of sonocatalysis, photocatalysis and sonophotocatalysis oxidation in a batch sonophotoreactor system. Preliminary studies presented in this study suggested that rutile worked well under sonocatalysis, anatase was the preference for photocatalysis and sonophotocatalysis benefited from a combined rutile and anatase mixture catalyst. Sonophotocatalysis oxidation of TCP demonstrated a degradation that was higher than sonocatalysis or photocatalysis individually while the first-order kinetics rate constants indicated that sonophotocatalysis degradation of TCP was synergistic with a positive value of 0.0203 in the presence of the mixture catalyst.

Item Type: Article
Uncontrolled Keywords: Anatase, Chlorophenol, Photocatalysis, Rutile, Sonocatalysis, Sonophotocatalysis, Sonophotodegradation, Chlorophenols, Rutile, Sonocatalysis, Sonophotocatalysis, Sonophotodegradation, Catalysts, Chlorine, Degradation, Oxide minerals, Phenols, Photocatalysis, Rate constants, Titanium dioxide
Subjects: ?? TD429.5-480.7 ??
Divisions: SCHOOL > School of Science and Technology
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 12 Nov 2012 09:12
Last Modified: 20 Oct 2017 06:05
URI: http://eprints.ums.edu.my/id/eprint/5100

Actions (login required)

View Item View Item

Browse Repository
Collection
   Articles
   Book
   Speeches
   Thesis
   UMS News
Search
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository