A novel Cd2+-imprinted chitosan-based composite membrane for Cd2+ removal from aqueous solution

作者：Tang, Xuejiao^*; Gan, Lan; Duan, Yuxin; Sun, Yanmei; Zhang, Yifan; Zhang, Zhidan

来源：Materials Letters, 2017, 198: 121-123.

DOI：10.1016/j.matlet.2017.04.006

• Chitosan-based membrane
• Composites materials
• FTIR
• Tensile strength
• Adsorption selectivity

A mixed matrix of chitosan (CTS) and poly(vinylidene fluoride) (PVDF) was used to fabricate a novel composite membrane (CTS(Cd2+)/PVDF) via a one-step film-forming process that employs Cd2+- imprinted technology. The membrane was then applied for the selective removal of Cd2+ from aqueous solution. Surface functional groups and morphologies of prepared membranes were characterized. Cd2+ adsorption properties and mechanical tensile strengths of the membranes were investigated. Results showed that the CTS(Cd2+)/PVDF membrane exhibited high Cd2+ adsorption capacity, excellent mechanical tensile strength, and good adsorption selectivity toward Cd2+ in the presence of Pb2+.

• 出版日期2017-7-1
• 单位南开大学