森林与环境学报2018，Vol.38Issue(3)：265-271,7.DOI:10.13324/j.cnki.jfcf.2018.03.002
柑橘渣的阳离子化改性及其对刚果红的吸附性能
Cationic modification of citrus pulp and its adsorption properties of Congo red
摘要
Abstract
To improve the adsorption performance of citrus pulp(CP),using cationic(3-chloro-2-hydroxypropyl)trimethylammonium chloride(CHPTAC),as monomer,CHPTAC-modified citrus pulps(CP-CHPTAC)were prepared under alkaline condition.The adsorption behavior to the anionic dye Congo red was investigated.The effects of the amount of CHPTAC,initial concentration of Congo red,adsorption time and pH value on the adsorption were tested.The isothermal adsorption model and adsorption kinetics were also analyzed.The results showed that with the increase of CHPTAC dosage,the equilibrium adsorption capacity of Congo red increased.At a pH of 4.6 and adsorption temperature of 25 ℃,the decolorization rate of Congo red reached 94％by CP-CHPTAC with graft ratio of 20.6％,and the adsorption process conform to the Langmuir isotherm model and pseudo-second-order kinetic model.The CP-CHPTAC suggested a good reusability and stability as it exhibited remarkable adsorption efficiency on Congo red after 6 times regeneration cycles.关键词
吸附/(3-氯-2-羟丙基)三甲基氯化铵/柑橘渣/刚果红Key words
adsorption/(3-chloro-2-hydroxypropyl) trimethylammonium chloride/citrus pulp/Congo red分类
化学化工引用本文复制引用
黄六莲,卢生昌,黄慧华,肖业成,陈礼辉,吴慧..柑橘渣的阳离子化改性及其对刚果红的吸附性能[J].森林与环境学报,2018,38(3):265-271,7.基金项目
国家自然科学基金项目(21774021,31470598) （21774021,31470598）
闽江学者奖励计划(KXNAD002A) （KXNAD002A）
福建农林大学国际科技合作与交流项目(KXB16002A). （KXB16002A）
