Feasibility study of photoelectrochemical degradation of methylene blue with three-dimensional electrode-photocatalytic reactor

The photoelectrochemical degradation of methylene blue in aqueous solution was investigated with three-dimensional electrode-photocatalytic reactor. It was found that the methylene blue could be degraded more efficiently by photoelectrochemical process than by photocatalytic oxidation or electrochem...

Full description

Saved in:
Bibliographic Details
Published in:Chemosphere (Oxford) 2002-02, Vol.46 (6), p.897-903
Main Authors: An, Tai-Cheng, Zhu, Xi-Hai, Xiong, Ya
Format: Article
Language:English
Subjects:
Applied sciences
Electrochemical oxidation
Electrodes
Enzyme Inhibitors - chemistry
Exact sciences and technology
Industrial wastewaters
Kinetics
Methylene blue
Methylene Blue - chemistry
Oxidation-Reduction
Photocatalyitc oxidation
Photochemistry
Photoelectrochemical degradation
Pollution
Three-dimensional electrodes
Waste Disposal, Fluid - methods
Wastewater treatment
Wastewaters
Water Purification - methods
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The photoelectrochemical degradation of methylene blue in aqueous solution was investigated with three-dimensional electrode-photocatalytic reactor. It was found that the methylene blue could be degraded more efficiently by photoelectrochemical process than by photocatalytic oxidation or electrochemical oxidation alone. The decolorization efficiency and COD reduction were 95% and 87% for a photoelectrochemical process, respectively, while they were only 78% and 68% for a single electrochemical process and 89% and 71% for a single photochemical process. The TOC reduction of the former also reached as high as about 81% within a reaction time of 30.0 min. And these degradation reactions conformed to pseudo-first-order kinetics.
ISSN:0045-6535
1879-1298
DOI:10.1016/S0045-6535(01)00157-6