多孔聚离子液体-对二乙烯基苯聚合物材料的合成与吸附Cr(VI)性能研究

Synthesis and Adsorption Study towards Cr(VI)of A Porous Poly(ionic liquid)Material

为了获得孔道更加稳定、比表面积较大的聚离子液体,向咪唑离子液体中引入刚性基团苯环,成功得到BET比表面积约为200 m2·g^(-1)左右的介孔型聚离子液体材料,对实验所得的产物聚离子液体-对二乙烯基苯进行了性质与结构的表征。并将PIL-DVB应用于Cr(VI)的吸附,进行了吸附等温线、吸附动力学的研究,其对Cr(VI)的吸附量可达到273 mg·g^(-1),通过实验与计算结合的方法对吸附机理进行了探究。

To obtain a more stable porous poly(ionic liquid)material with higher Brunauer–Emmett–Teller surface area,a rigid phenyl group was introduced into the ionic liquid monomer and used to copolymised with divinylbenzene.The mesoporous poly(ionic liquid)product with a surface area of 200 m2·g^(-1) was fully characterized and applied in chromium adsorption and removal from water.PIL-DVB had a chromium(VI)uptake of about 273 mg·g^(-1).The adsorption process and mechanism were studied by experimental and computational methods.