磁性聚合单宁-纤维素树脂的制备及对Mn(Ⅱ)废水的吸附  

PREPARATION OF MAGNETIC POLY(TANNIN)-CELLULOSE RESIN AND ITS ADSORPTION ON MN(Ⅱ) WASTEWATER

作　　者：张建芳 周鹏[1,2] 彭平英 袁花 王永明 彭志远[1,2] ZHANG Jian-fang;ZHOU Peng;PENG Ping-ying;YUAN Hua;WANG Yong-ming;PENG Zhi-yuan(Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology,Jishou University,Jishou,Hunan 416000,China;College of Chemistry and Chemical Engineering,Jishou University,Jishou,Hunan 416000,China)

机构地区：[1]吉首大学锰锌钒协同创新中心,湖南吉首416000 [2]吉首大学化学化工学院,湖南吉首416000

出　　处：《井冈山大学学报（自然科学版）》2019年第5期10-14,共5页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(31760196);吉首大学校级科研项目(Jdx17005);锰锌钒协同创新中心校级项目

摘　　要：以Fe3O4作为磁核,单宁酚醛聚合物和纤维素作为包裹材料,环氧氯丙烷为交联剂,经反相悬浮交联聚合法制备磁性聚合单宁-纤维素树脂,并探讨了该树脂对Mn(Ⅱ)吸附性能。结果表明:树脂经包埋Fe3O4后具有磁性;树脂对Mn(Ⅱ)离子具备较好的吸附容量,其饱和吸附容量为37.52 mg/g;树脂对Mn(Ⅱ)具有较快的吸附速率,达到吸附平衡的时间为20 min;当Mn(Ⅱ)溶液浓度低于20 mg/L时,经树脂吸附后溶液中残剩Mn(Ⅱ)浓度均低于1.89 mg/L,低于国家污水综合排放要求;该树脂Mn(Ⅱ)废水处理方面具有潜在的应用前景。Taking Fe3O4 as magnetic core,tannin-phenolic polymer and cellulose as package material,epichlorohydrin as crosslinking agent,magnetic poly(tannin)-cellulose resin was prepared by inverse suspension cross-linking polymerization.The adsorption properties of the resin on Mn(Ⅱ)were discussed.The results showed that the magnetic poly(tannin)-cellulose resin had magnetism after being embedded with Fe3O4,it had better adsorption capacity on Mn(Ⅱ)ion with the maximum adsorption capacity of 37.52 mg/g.The adsorption rate was fast,and the time for reaching the adsorption equilibrium was 20 minutes.When the initial concentration of Mn(Ⅱ)solution is less than 20 mg/L,the residual Mn(Ⅱ)concentration is less than 1.89 mg/L,which is lower than the National Comprehensive Wastewater Discharge Standard.The Magnetic poly(tannin)-cellulose resin has potential application prospects in Mn(Ⅱ)wastewater treatment.

关 键 词：单宁 纤维素 吸附 Mn(II)废水 

分 类 号：TQ424.3[化学工程]