CNT/PANI电极吸附去除水中Cu^(2+)的研究  

Electrosorption of Cu2+ in aqueous solution using CNT/PANI electrodes

作　　者：施周[1] 靳兆祺 邓林[1] 王立[1] 岳文慧[1] SHI Zhou;JIN Zhao-qi;DENG Lin;WANG Li;YUE Wen-hui(College of Civil Engineering, Hunan University, Changsha 410082, China)

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《中国环境科学》2016年第12期3650-3656,共7页China Environmental Science

基　　金："十二五"国家科技支撑计划资助项目(2012BAJ24B03)

摘　　要：通过原位化学聚合法制备CNT/PANI复合材料,采用电镜扫描(SEM)、傅里叶红外光谱技术(FTIR)、X射线光电子能谱技术(XPS)和循环伏安法(CV)对复合材料的物理化学特性进行表征和测试.结果表明,复合材料比表面积和孔隙率减少,但比电容增加.CNT/PANI复合材料电极对铜离子的去除效果是CNT电极的4.24倍,吸附量随着电压、铜离子初始浓度和p H的增加而增加,电吸附过程符合准一级动力学.Polyaniline and carbon nanotube composites(CNT/PANI)were synthesized through in situ chemical oxidativepolymerization method,the physicochemical properties of the composites were characterized by scanning electronmicroscopy(SEM),Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),and cyclicvoltammetry(CV).Compared with the pure CNT,CNT covered by PANI had a smaller specific surface area and porosity,but had a higher specific capacitance.Experiments indicated that the removal efficiency of Cu2+by CNT/PANI electrodewas4.24times that by CNT electrode.The adsorbed amount of Cu2+increased with the increase of the voltage,initialCu2+concentration and solution pH.The electrosorption of CNT/PANI electrodes for Cu2+followed the pseudo-first-orderkinetic model.

关 键 词：电吸附 CNT/PANI复合电极 CU2+ 

分 类 号：X703.1[环境科学与工程—环境工程]