轻工学报2018，Vol.33Issue(6)：1-7,7.DOI:10.3969/j.issn.2096-1553.2018.06.001
EDTA-壳聚糖的制备及其对Cd2+的吸附作用研究
Study on the preparation of EDTA-chitosan and its adsorption on Cd2+
摘要
Abstract
EDTA-chitosan was prepared through the acylation modification between EDTA-2Na and chitosan.The preparation conditions of EDTA-chitosan were optimized by single factor test combined with orthogonal optimization test. The comparative analysis of Cd2+adsorption properties of EDTA-chitosan was made with that of chitosan hydrochloride, chitosan quaternary ammonium salt, hydroxypropyl chitosan and chitosan lactate.The results showed that the optimum preparation conditions of EDTA-chitosan were as follows: the mass ratio of EDTA-2Na and CTS was 2∶1, the pH value was 5. 5, the concentration of EDAC was 40 mmol/L, and the reaction time was 16 h. The verification experiment under these conditions showed that the average Cd2+adsorption rate of EDTA-chitosan was 53. 04％. Moreover, the comparative experiment revealed that EDTAchitosan had better Cd2+adsorption effect than other chitosan derivatives under the same conditions.关键词
EDTA-壳聚糖/酰化改性/Cd2+吸附Key words
EDTA-chitosan/acylation modification/Cd2+ adsorption分类
轻工纺织引用本文复制引用
杨锡洪,辛荣玉,张景禹,于文露,张俊逸,李钰金,解万翠..EDTA-壳聚糖的制备及其对Cd2+的吸附作用研究[J].轻工学报,2018,33(6):1-7,7.基金项目
国家自然科学基金项目(31772089,31271938) （31772089,31271938）
山东省重点研发计划项目(2017GHY15127) （2017GHY15127）
