生物质化学工程2016，Vol.50Issue(6)：37-42,6.DOI:10.3969/j.issn.1673-5854.2016.06.006
废弃虾壳制备改性甲壳素凝胶球及其对金属离子的吸附性能
P reparation of Modified Chitin Gel Bead from Waste Shrimp Shell and Its Adsorption P roperties for Metal Ions
摘要
Abstract
Modified chitin with 40.4% deacetylation degree was obtained from enzymatic hydrolysis residue of shrimp shell,which was treated by 5% HCl for 4 h and 45% NaOH coupled with 460 W microwave for 10 min,and then prepared into gel beads with diameter of 1. 5-3. 2 mm by adding sodium alginate, mixing evenly, and squeezing in calcium chloride solution for 12 h. The adsorption performances of the gel beads to metal ions (Pb2+,Cr3+,Ni2+,Cu2+,Zn2+ and Co2+) were investigated.The adsorption rates of Cu2+, Co2+ and Zn2+were found to be 94.2%,75.6% and 57.3% in 300 mg/L ion solutions by treating for 8 h,and 95.1%, 82.5%, 67.5% in the Cu2+, Zn2+ and Co2+coexisting system,respectively.关键词
改性甲壳素/金属离子/吸附性能Key words
modified chitin/metal ion/adsorption property分类
化学化工引用本文复制引用
钱建瑛,丁振中,杨涛,李恒,史劲松..废弃虾壳制备改性甲壳素凝胶球及其对金属离子的吸附性能[J].生物质化学工程,2016,50(6):37-42,6.基金项目
江苏省重大成果转化项目( BA2015006) （ BA2015006）
