Research on Preparation and Properties of Alkylation Modified Chitosan Supported Cuprous Oxide

Abstract:

Using chitosan as raw material,the modified chitosan was obtained through alkylation reaction with alkyl halide, which as a carrier, Cu2O/ modified chitosan composite photocatalyst was prepared by hydrazine hydrate reduction.Using the method of X-ray diffraction and scanning electron microscope analysis, characterization of the composite photocatalyst show: Cu2O loads evenly on the modified chitosan, and the structure of Cu2O changes little, grain size of Cu2O is about 200nm~300nm.Using UV mercury lamp as the light source, alizarin red as target degradation product, photocatalytic performance of the Cu2O/modified chitosan photocatalyst was researched.The results show that: As the loaded modified chitosan produces a synergistic effect with Cu2O, its degradation rate of the dye improves in the UV mercury lamp,when the concentration of alizarin red is 50mg/L of the experimental conditions, the composite catalyst dyedegradation better than separate Cu2O catalysts and modified chitosan; absorption mainly dominates in composite photocatalyst under no light.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 2318-2321
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.2318
• Online since: November 2013
• Authors: Zhuo Ying Xia*, Kun He Lan, Hao Wei Hu, Cong Qun Wu
• Keywords: Alkylation Modified Chitosan, Cu₂O, Hydrazine Reduction Method, Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD)

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