天津工业大学学报2016，Vol.35Issue(6)：20-26,7.DOI:10.3969/j.issn.1671-024x.2016.06.004
β-CD固载淀粉的制备及其对藏红花T的吸附性能
Preparation ofβ-CD grafting starch and its adsorption performance to saffron T
摘要
Abstract
In order to solve the current low adsorption materials, low treatment efficiency of printing and dyeing wastewater, long time, serious pollution, and the problems of refractory adsorbent itself, with corn starch (CS) as a raw materi-al, theβ-cyclodextrin (β-CD) and citric acid (CA) were introduced into the polymerization system by using cit-ric acid (CA) as crosslinking agent and hypophosphorous acid sodium (SHP) as catalyst,β-CD immobilized corrn starch was (C-β-CDP) prepared by using dichotomy complete. The effects of prepoly content,nCA-β-CD∶nSHP, the reaction temperature and time on the corn starch immobilizedβ-cyclodextrin were explored. The experi-mental results show that the optimum prepared conditions of corn starch immobilizedβ-cyclodextrin (C-β-CDP):prepolymer donor content of 60%, nCA-β-CD∶nSHP=1∶0.33, the reaction temperature was 100℃, the re-action time was 30 min. After the reaction, a new ester base appeared, the crystalline region was destroyed, showed that the crosslinking reaction happened betweenβ-CD and starch. For adsorption of Saffron T, the ad-sorption process of C-β-CSP is more accord with the Freundlich isothermal adsorption equation, the maximum adsorption was 14.747 2 mg/g at 45℃, the dye removal rate was 86.061 8%, the adsorption for Saffron T mainly was cyclodextrin coated, as well as the chemical adsorption rather than molecular diffusion.关键词
β-环糊精/淀粉/固载/藏红花T/Freundlich等温吸附方程Key words
β-CD/starch/immobilization/saffron T/Freundlich isothermal adsorption equation分类
轻工纺织引用本文复制引用
王建坤,梁卡,张昊..β-CD固载淀粉的制备及其对藏红花T的吸附性能[J].天津工业大学学报,2016,35(6):20-26,7.基金项目
国家自然科学基金青年基金项目 （）
