Removing hexavalent chromium (Cr(VI)) from aqueous solution is strategically important. A novel and selective adsorbent was synthesized using a high electron beam irradiation pre-grafting and post-surface ion imprinting method using Cr(VI) and polypropylene (PP) fibers as the template and substrates, respectively. The results obtained using Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TG) indicated that the prepared sorbent was successfully synthesized. At the same time, the adsorption performances were studied through batch experiments. The results exhibited rapid adsorption kinetics, a wide working pH range, and excellent selectivity and regeneration. The equilibrium adsorption was achieved within 30 min, the maximum sorption capacity of Cr(VI)-IIPs was 156.5 mg g^-1 and partition coefficients (PC) was 0.591 mg g^-1 uM^-1 at 400 mg L^-1 initial concentration and 298 K. The relative selectivity coefficients of the ion-imprinted polymer (IIP) for Cr₂O₇^2-/ HPO₄^2- and Cr₂O₇^2-/ NO₃^- were 36.7 and 39.9, respectively. In addition, the prepared sorbent has a negligible loss in adsorption capacity after five cycles. IIP has good application prospects in the selective removal of Cr(VI) ions.

从水溶液中去除六价铬（Cr（VI））具有战略意义。使用高电子束辐照前接枝和后表面离子压印法，分别以Cr（VI）和聚丙烯（PP）纤维为模板和基材，合成了新型选择性吸附剂。使用傅里叶变换红外（FTIR）光谱，X射线光电子能谱（XPS）和热重分析（TG）获得的结果表明，所制备的吸附剂已成功合成。同时，通过分批实验研究了其吸附性能。结果显示出快速的吸附动力学，宽的工作pH范围以及出色的选择性和再生性。在30分钟内达到平衡吸附，Cr（VI）-IIPs的最大吸附容量为156.5 mg g^-1和分配系数（PC）在400 mg L ^-1初始浓度和298 K时为0.591 mg g ^-1 uM ^-1。离子印迹聚合物（IIP）对Cr ₂ O ₇ ^2- /的相对选择性系数。HPO ₄ ^2-和Cr ₂ ö ₇ ^2- / NO ₃ ^-分别为36.7和39.9。另外，制得的吸附剂在五个循环后的吸附能力损失可忽略不计。IIP在选择性去除Cr（VI）离子方面具有良好的应用前景。