Preparation of Chitosan-TiO_2 Composite and Application in the De-coloration of Reactive Dyes Wastewater  

作　　者：张晓莉 汤克勇 刘捷 

机构地区：[1]College of Materials Science and Engineering,Zhengzhou University [2]College of Textiles,Zhongyuan University of Technology

出　　处：《Journal of Donghua University(English Edition)》2015年第3期390-394,共5页东华大学学报（英文版）

基　　金：National Natural Science Foundations of China(Nos.50973097,21076199)

摘　　要：Chitosan-TiO2 composite has been prepared by the sol-gel process. Tetrabutyl titanate( TTB) was used as a precursor to obtain nano TiO2 sol,which was then added into acid solution of chitosan to form titania network in the matrix. SEM,TG,and Fourier transform infrared spectroscopy( FTIR) were employed to characterize morphology and structure of the Chitosan-TiO2 composite. The resulting hybrid has potential applications for the adsorption and sonolytic-degradation of organic dyes in wastewater.The result shows that the de-coloring ratio reaches 97. 2% at the optimum conditions with the help of ultrasound.Chitosan-TiO2 composite has been prepared by the sol-gel process. Tetrabutyl titanate（ TTB） was used as a precursor to obtain nano TiO2 sol,which was then added into acid solution of chitosan to form titania network in the matrix. SEM,TG,and Fourier transform infrared spectroscopy（ FTIR） were employed to characterize morphology and structure of the Chitosan-TiO2 composite. The resulting hybrid has potential applications for the adsorption and sonolytic-degradation of organic dyes in wastewater.The result shows that the de-coloring ratio reaches 97. 2% at the optimum conditions with the help of ultrasound.

关 键 词：Chitosan-TiO2 sonolytic-degradation dyeing wastewater de-coloration 

分 类 号：X791[环境科学与工程—环境工程]