Journal
CARBOHYDRATE POLYMERS
Volume 90, Issue 1, Pages 87-94Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.04.066
Keywords
Chitosan; Epichlorohydrin; Crosslinking; Photocatalysis; Oxidation; Phenol
Categories
Funding
- Ministry of Science, Technology and Innovation (MOSTI), Malaysia [305/pkimia/613402, 203/pkimia/671027]
- Universiti Sains Malaysia
Ask authors/readers for more resources
Photocatalytic oxidation of crosslinked chitosan-epichlorohydrin (CS-ECH) film was successfully achieved via an immobilized TiO2/CS-ECH photocatalyst system on a glass plate. Oxidation process of CS-ECH film was carried out by irradiating the system with a 45-W fluorescent lamp for 10 h in ultra-pure water. The results indicate the formation of carbonyl functional groups and partial elimination of amine groups in the molecular structure of the oxidized CS-ECH film. This oxidized CS-ECH film has different optical properties, ionic conductivity, degree of transparency, swelling index and chemical stability than the fresh CS-ECH film. In the environmental applications, the TiO2/oxidized-CS-ECH photocatalyst system can have photodegradation and faster mineralization rate of phenol than both fresh TiO2/CS-ECH and TiO2/oxidized-CS photocatalyst systems. This simple photocatalyst system, therefore can be considered as an environmental friendly method to oxidize synthetic biopolymer and to improve the photocatalytic efficiency of TiO2 to treat wastewater. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available