Preparation of graphene oxide/polyiminodiacetic acid resin as a high-performance adsorbent for Cu(Ⅱ)
马鑫 1段广宇 1黄家琦 1杨佳 1曹占芳 1王帅1
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources,Central South University,Changsha 410083,China
Heavy metal-contaminated water has become a great challenge for aquatic ecosystems.Herein,a versatile composite(IRC 748-GO)adsorbent was prepared by modifying graphene oxide(GO)with Amberlite IRC 748 resin.The batch and dynamic adsorption experiments of Cu2+ on the IRC 748-GO composite were conducted,and the results showed that the novel adsorbents have a high adsorption capacity compared to the pristine GO.The adsorption process was consistent with the pseudo-second-order kinetic model and the equilibrium data were well fitted to the Langmuir isotherm model,and the maximum uptake of Cu2+ was 127.22 mg/g.The adsorption mechanism was investigated using FT-IR,SEM,XPS,and adsorption isotherms,which revealed that the carboxyl groups in IRC 748-GO composite could effectively chelate Cu2+.Overall,the IRC 748-GO composite exhibited important advantages such as great specific surface area and stability,as well as high adsorption capacity,which provides broad application prospects for efficiently remediating wastewater containing heavy metals.
维普
万方数据