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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
2017
Source PublicationJournal of Hazardous Materials
ISSN03043894
Volume328Pages:160-169
AbstractA 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
DOI10.1016/j.jhazmat.2017.01.003
EI Accession Number20170403286217
EI KeywordsAdsorption
EI Classification Number802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 815.1 Polymeric Materials
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Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25635
Collection中国科学院上海硅酸盐研究所
Affiliation1.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
Recommended Citation
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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