盐对纤维素类修饰的吸附树脂吸附溶液中邻氨基苯甲酸的影响  

EFFECT OF SALTS ON ADSORPTION PERFORMANCE OF o-AMINOBENZOIC ACID(OABA) SOLUTION ONTO ADSORPTION RESINS MODIFIED BY CELLULOSES

作　　者：费正皓[1] 杨珊珊[1] 沙新龙[1] 刘总堂[1] 施卫忠[1] 

机构地区：[1]江苏省滩涂生物资源与环境保护重点建设实验室,盐城师范学院,盐城224002

出　　处：《离子交换与吸附》2013年第5期408-416,共9页Ion Exchange and Adsorption

基　　金：国家自然科学基金资助(No.21077087);江苏省"六大人才高峰"项目资助(2011-JY-011);江苏省"333高层次人才工程"资助;江苏省新型环保重点实验室开放课题基金资助(No.AE201009);江苏省教育厅项目资助(No.13KJB150007);江苏省滩涂生物资源与环境保护重点建设实验室研究(No.JLCBE08001)资助项目

摘　　要：通过Friedel-Crafts交联反应分别制备了乙基纤维素和羟丙基纤维素修饰的超高交联吸附树脂(分别命名为ECMR和HPMCMR),通过红外光谱(FT-IR)和比表面及孔径分析对其结构进行表征。研究了无机盐(NaCl和Na2SO4)对ECMR和HPMCMR吸附树脂吸附水溶液中邻氨基苯甲酸时的影响规律,探讨了不同盐浓度、不同邻氨基苯甲酸起始浓度以及不同温度时的变化趋势,分析了低浓度盐对ECMR和HPMCMR吸附水溶液中邻氨基苯甲酸时的吸附等温线及其吸附热力学结果,并给出了合理的解释。Two kinds of resins modified with ethylcellulose （named as ECMR） or hydroxypropyl cellulose （named as HPMCMR） during post-crosslinking of chloromethylated low-crosslinked macroporous polystyrene resins were prepared and characterized by FT-IR and BET. The adsorption performance of OABA from salt-containing solution was studied and the effect of salts on adsorption capacity of OABA on ECMR or HPMCMR were investigated. The factors, such as kind of salt, concentration of salt, initial concentration of OABA and adsorption temperature, were determined by experiments. Adsorption isotherm analysis and thermodynamic results obtained were helpful to get a reasonable adsorption mechanism.

关 键 词：吸附树脂 邻氨基苯甲酸 化学修饰 盐效应 

分 类 号：TQ425[化学工程]