以廉价明胶(gel)和羧甲基纤维素钠(CMC)为基质,辅以聚吡咯(PPy)为修饰剂,利用铬酸作为氧化剂构建Cr(Ⅵ)离子印迹空穴,制备出了光敏感离子印迹材料(IIP),并对其性能进行了评估。实验结果表明,制备出的IIP不仅成本低、具有良好的Cr(Ⅵ)吸附选择性,还具有优良的光敏感性,可通过光热作用增强吸附离子的洗脱。另外,IIP还具有原位还原性,能够有效地将吸附的Cr(Ⅵ)还原成Cr(Ⅲ),实现对Cr(Ⅵ)的综合治理。
The photosensitive imprinting material (IIP) was prepared by using gelatin (gel) and sodium carboxymethyl cellulose (CMC) as the matrix,polypyrrole (PPy) as the modifier,and chromic acid as the oxidant.The results showed that IIP not only had advantages of low-cost and high selectivity,but also had excellent character of photo-sensitivity which can enhance the elution of adsorption ions by photothermal effect.Otherwise,IIP had the in-situ reducing property which can effectively reduce the adsorption Cr(Ⅵ) to Cr(Ⅲ) and realized the comprehensive treatment of Cr(Ⅵ).
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基金资助
中央高校基本科研业务费专项资金(310829161015);大学生创新创业训练计划(201710710262)
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