文献类型：期刊文献

英文题名：Fabrication of chitosan microspheres for efficient adsorption of methyl orange

作者：Zhai, Linlin[1];Bai, Zhishan[1];Zhu, Yong[1];Wang, Bingjie[1];Luo, Wenqiang[1]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Mech & Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：26

期号：3

起止页码：657

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20175004532198);WOS:【SCI-EXPANDED(收录号:WOS:000429492800029)】；

基金：Supported by the National Basic Research Program of China (2014CB748500) and the National Natural Science Foundation of China (51578239, 51322805).

语种：英文

外文关键词：Microfluidic technology; Chitosan microspheres; Adsorption; Methyl orange

摘要：In this article, morphology, structure and size controllable chitosan microspheres with high mechanical strength were synthesized by microfluidic technology combining chemical crosslinking and used as an adsorbent for methyl orange. The synthesized adsorbents were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and an Energy Dispersive Spectrometer (EDS). The effect of pH revealed that the adsorption process depended on pH and the pH variation of methyl orange solution after adsorption indicated that adsorption capacity was affected through the associated role of chitosan nature and pH variation. Experimental results suggested that the as-prepared chitosan microspheres were controlled within a narrow size distribution (coefficients of variation is 1.81%), whose adsorption capacity reached to 207 mg.g(-1) and mechanical strength was suitable to resist forces. In addition, the adsorption isotherm was well fitted with the Langmuir model, and the adsorption kinetic was best described by the pseudo-second-order kinetic model. The high performance microfluidic-synthesized chitosan microspheres have promising potentials in the applications of removing dyes from wastewater. (c) 2017 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.