PAN-S浸渍树脂对金属Ni^(2+)的吸附性能研究  

ADSORPTION OF Ni^(2+) ON 1-(2-PYRIDYLAZO)-2-NAPHTHOL-6-SUIPHONIC ACID IMPREGNATED RESIN

作　　者：王京平[1,2] 赵小波[1,2] 唐树和[1,2] 陈建[1,2] 孔祥燕[1,2] 

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22400 [2]盐城师范学院应用化学与环境工程研究所,盐城224002

出　　处：《离子交换与吸附》2009年第6期527-533,共7页Ion Exchange and Adsorption

基　　金：江苏省高校自然科学基础研究项目资助(08KJD150009);江苏省滩涂生物资源与环境保护重点建设实验室项目基金(JLCBE06001);江苏省高等学校大学生实践创新训练计划项目资助;盐城师范学院教授;博士项目基金

摘　　要：用1-(2-吡啶偶氮)-2-萘酚-6-磺酸(PAN-S)水溶液处理201×7强碱性阴离子交换树脂,制取了具有PAN-S功能团的PAN-S浸渍树脂。用PAN-S作显色剂测定水相中金属Ni2+,建立了分光光度测定方法,并且研究了测试的优化条件以及PAN-S浸渍树脂对金属Ni2+的静态吸附和动力学吸附行为。结果表明,在288～318K和研究的浓度范围内,PAN-S浸渍树脂对金属Ni2+的吸附平衡数据符合Freundlich和Langmuir吸附等温方程,其吸附金属Ni2+为放热过程,适当降低温度有利于吸附。The PAN-S resin was prepared by treating the 201×7 ion-exchange resin with 1-（2-pyridylazo）-2-naphthol-6-suiphonic acid. Spectrophotometry was adopted and optimized to determine the concentration of Ni2＋ in the solution and 1-（2-pyfidylazo）-2-naphthol-6-suiphonic acid was used as the chromogenic reagent, the detection wavelength was 550nm. The static and dynamic adsorption characteristics of Ni2＋ on the PAN-S resin were investigated in this paper. The results indicated that the Langmuir and Freundlich models gave perfect fitting to the isotherm data and the adsorption of Ni2＋ on the PAN-S resin is a kind of exothermal process within the temperature range of 288-318K.

关 键 词：浸渍树脂 PAN-S 金属Ni2+ 

分 类 号：O647.3[理学—物理化学]