【摘 要】
：
将等温滴定量热技术与离子印迹技术相结合,筛选出与砷(Ⅲ)结合较好的2,3-二巯基丙磺酸钠盐一水合物(DMPS),并以其为功能单体,砷(Ⅲ)为模板,采用包埋法制备了砷(Ⅲ)印迹聚合物.后采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶红外光谱(FT-IR)、N2吸附-脱附实验对印迹聚合物进行表征.该法制备的印迹聚合物粒径约为1 μm,比表面积可达1280m2/g.接着探究了印迹聚合物在最佳吸附条件下(温度为25℃、pH 7、初始浓度为60 mg/L、吸附时间1 h)的吸附容量为1.9095mg
【机 构】
：
上海理工大学理学院,上海200093;上海理工大学医疗器械与食品学院,上海食品快速检测工程技术研究中心,上海200093
论文部分内容阅读
将等温滴定量热技术与离子印迹技术相结合,筛选出与砷(Ⅲ)结合较好的2,3-二巯基丙磺酸钠盐一水合物(DMPS),并以其为功能单体,砷(Ⅲ)为模板,采用包埋法制备了砷(Ⅲ)印迹聚合物.后采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶红外光谱(FT-IR)、N2吸附-脱附实验对印迹聚合物进行表征.该法制备的印迹聚合物粒径约为1 μm,比表面积可达1280m2/g.接着探究了印迹聚合物在最佳吸附条件下(温度为25℃、pH 7、初始浓度为60 mg/L、吸附时间1 h)的吸附容量为1.9095mg/g,印迹因子为1.24,为砷(Ⅲ)的电化学或荧光光谱检测提供选择性材料,有助于环境中砷(Ⅲ)的检测及去除.
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