Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 38, Issue 14, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201700151
Keywords
absorbents; density functional theory; metal ions; poly(ionic liquid) membrane; recyclable
Categories
Funding
- National Natural Science Foundation for Distinguished Young Scholars [21425417]
- National Natural Science Foundation of China [21274101]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Heavy metal ion pollution has become a serious environmental problem. Herein, this study reports the synthesis of poly(ionic liquid) (PIL) membranes via in situ photo-crosslinking of vinyl imidazole with both hydrophilic and hydrophobic ionic liquid monomers. The resultant amphiphilic polymer membranes are porous and exhibit high absorption capacity of metal ions (including Hg2+, Pb2+, Cu2+, Cd2+, and Zn2+) in both high (1000 mg L-1) and low (10 mg L-1) concentration metal ion solutions. These metal ionic absorption membranes are easily regenerated in acid solution and can be reused without significant decreases of absorption capacity after many cycles. These PIL membranes may have potential applications as eco-friendly and safe heavy metal ion removal materials.
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