茶叶科学2016，Vol.36Issue(6)：639-645,7.
改性绿茶去除水中碱性品红的研究
Adsorption of Basic Fuchsine by Modified Green Tea
摘要
Abstract
Green tea was modified by chemical reagents for preparing biosorbent to remove basic fuchsine in waste water. Effects of chemical reagents, relative concentration, initial concentration of basic fuchsine, adsorption time, temperature on the adsorption capacity and adsorption kinetics were investigated for optimum condition analysis. Results showed that the best chemical reagent was epichlorohydrin. The optimum concentration was 0.015 mol·L-1. The optimum initial concentration of basic fuchsine was 20 mg·L-1. The optimum temperature was 30℃. The optimum absorption time was 240 min. The maximum absorption capacity of the modified green tea reached 53.6 mg·g-1. The adsorption kinetics followed the pseudo- first-order kinetic model. According to the isothermal adsorption of fuchsin basic adsorption with modified green tea, the Langmuir model was suitable for application. The adsorption of fuchsin basic by modified green tea belongs to single molecule layer adsorption.关键词
改性绿茶/碱性品红/吸附/动力学Key words
modified green tea/fuchsin basic/absorption/kinetics分类
轻工纺织引用本文复制引用
李卓厉,蔡晓敏,徐仪洁,阮暻悦,郑群雄,熊春华..改性绿茶去除水中碱性品红的研究[J].茶叶科学,2016,36(6):639-645,7.基金项目
浙江省科技计划项目（2014C32124）、浙江省纤维材料和加工技术研究重点实验室开放基金（2015002）、化学工程与技术浙江省重中之重（一级）学科开放基金（YR2015002）。 （）
