Highly efficient and selective removal of trace lead from aqueous solutions by hollow mesoporous silica loaded with molecularly imprinted polymers | |
Zhang, Zulei1,2; Zhang, Xingdi1; Niu, Dechao1; Li, Yongsheng1; Shi, Jianlin1,3 | |
刊名 | Journal of Hazardous Materials |
2017 | |
卷号 | 328页码:160-169 |
ISSN号 | 03043894 |
DOI | 10.1016/j.jhazmat.2017.01.003 |
英文摘要 | A novel type of adsorbent for the selective recognition and adsorption of trace Pb2+from aqueous solutions has been successfully constructed simply by grafting molecularly imprinted polymers (MIPs) onto hollow mesoporous silica (HMS). Attractively, the HMS loaded with MIPs (H-MIPs) exhibits a fast adsorption kinetics, marked adsorption capacity of 40.52 mg/g and extremely high selectivity toward Pb2+over Cu2+, Zn2+, Co2+, Mn2+and Ni2+, and the selectivity coefficients have been determined to be as high as 50. Moreover, such high adsorptive capability and selectivity were retained for at least 6 runs, indicating the stability and reusability of H-MIPs. Lead ion contaminants in real water samples were successfully concentrated and approximately 100% recovered using H-MIPs. Theoretical analysis shows that the adsorption process of H-MIPs follows the pseudo-second-order kinetic and Langmuir isotherm models. These demonstrate that H-MIPs are greatly potential for the rapid and highly efficient removal of trace Pb2+ions in complicated matrices. © 2017 |
内容类型 | 期刊论文 |
源URL | [http://ir.sic.ac.cn/handle/331005/25635] |
专题 | 中国科学院上海硅酸盐研究所 |
作者单位 | 1.Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai; 200237, China; 2.School of Biology and Chemical Engineering, Jiaxing University, Jiaxing; 314001, China; 3.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China |
推荐引用方式 GB/T 7714 | Zhang, Zulei,Zhang, Xingdi,Niu, Dechao,et al. Highly efficient and selective removal of trace lead from aqueous solutions by hollow mesoporous silica loaded with molecularly imprinted polymers[J]. Journal of Hazardous Materials,2017,328:160-169. |
APA | Zhang, Zulei,Zhang, Xingdi,Niu, Dechao,Li, Yongsheng,&Shi, Jianlin.(2017).Highly efficient and selective removal of trace lead from aqueous solutions by hollow mesoporous silica loaded with molecularly imprinted polymers.Journal of Hazardous Materials,328,160-169. |
MLA | Zhang, Zulei,et al."Highly efficient and selective removal of trace lead from aqueous solutions by hollow mesoporous silica loaded with molecularly imprinted polymers".Journal of Hazardous Materials 328(2017):160-169. |
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