A Study in the Adsorption Behaviors of Cr (VI) on Crosslinked Amphoteric Starches Synthesized through Using the Microwave Radiation Method
Crosslinked amphoteric starches (CAS) with quaternary ammonium cationic and carboxymethyl anionic groups were prepared by a microwave radiation method. Their adsorption behavior for Cr(VI) was investigated. The results showed that high the degree of substitution (DS) of modified starch was favorable to the synthesis by the microwave heating and crosslinked amphoteric starches prepared with higher the adsorption capacity than by the drying reaction. The adsorption capacity increases with the increasing cationic groups and decreased with increasing degree of substitution of anionic groups. The adsorption capacity was found to follow the Langmuir isotherm.
adsorption capacity amphoteric starch Cr (VI) the degree of substitution (DS)
ZOU Lixia LIU Qingcheng XU Qiong RONG Jinghua
College of Chemistry, Biology and Material, East China Institute of Technology, Jiangxi Fuzhou 34400, China State Key Lab of Chemical Resource Engineering, Beijing 350002, China
国际会议
2009 Advanced Polymer Processing(Qingdao)Intl Forum(2009高分子材料先进制造业(青岛)国际论坛
青岛
英文
387-392
2009-08-19（万方平台首次上网日期，不代表论文的发表时间）