SA-g-P(AA-co-AMPS)/KL对罗丹明6G的吸附性能研究  

Sorption behavior of rhodamine 6G onto sodium alginate graft poly(acrylic acid-co-2-acrylamido-2-methyl propane sulfonic acid ) / kaolin composite hydrogel

作　　者：朱林晖[1] 杨瑞[1] 张振涛[1] 丁马太[2] 杨静[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266590 [2]厦门大学材料学院,福建厦门361005

出　　处：《功能材料》2014年第13期13021-13024,共4页Journal of Functional Materials

基　　金：山东省高等学校科技计划资助项目(J13LD07);国家自然科学基金-煤炭联合基金重点支持资助项目(U1261205)

摘　　要：研究了海藻酸钠接枝聚丙烯酸2-丙烯酰胺-2-甲基丙磺酸/高岭土(SA-g-P(AA-co-AMPS)/KL)复合树脂对罗丹明6G染液的吸附性能。探讨了染料初始浓度、吸附时间、pH值对吸附性能的影响,并对吸附结果进行热力学和动力学拟合。结果表明,复合树脂对罗丹明6G在实验条件下的最大吸附量为710 mg/g,吸附过程是自发的,且同时符合Freudlich方程和Redlich-Peterson方程,动力学符合拟二级动力学方程。Removal of rhodamine 6G from aqueous solutions using sodium alginate graft poly （acrylic acid-co-2-acrylamido-2-methyl-1-propane sulfonic acid ）/kaolin composite hydrogel was sudied.The factors influencing the adsorption capacity such as initial concentrations of rhodamine 6G,contact time and pH values were discussed. Adsorption thermodynamics and kinetics were also investigated.Maximal adsorption capacity was 7 1 0 mg/g.It showed that the adsorption process was spontaneous and the adsorption isotherms were in good agreement with both Freudlich and Redlich-Peterson equations,the kinetics fit pseudo-second-order equation.

关 键 词：高岭土 吸附 罗丹明6G 

分 类 号：TB332[一般工业技术—材料科学与工程]