Citation: Hong Yao, Xing-Mei You, Qin Lin, Jun-Jian Li, Ying Guo, Tai-Bao Wei, You-Ming Zhang. Multi-stimuli responsive metal-organic gel of benzimidazol-based ligands with lead nitrate and their use in removal of dyes from waste-water[J]. Chinese Chemical Letters, ;2013, 24(8): 703-706. shu

Multi-stimuli responsive metal-organic gel of benzimidazol-based ligands with lead nitrate and their use in removal of dyes from waste-water

1.
Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China

Corresponding author: You-Ming Zhang,
Received Date: 6 March 2013
Available Online: 24 April 2013

A novel smart metal-organic gel (MOG) formed from biscarboxyl-functionalized benzimidazole derivative (D11) in the presence of lead nitrate has been investigated. The critical gel concentration for the formation of MOG was just 0.36 wt%, which exhibits a super gelation capability of D11. The coordination of the metal to the ligand D11 was found to play a vital role in the construction of the supramolecular MOG. Microstructures determined by SEM observation demonstrated that theMOG was formed by intertwined fibrils. Interestingly, the MOG exhibits pH-induced, thermo-induced, and chemical-induced reversible gel-sol transition. Meanwhile, this supramolecular MOG shows desirable absorption ability of methyl orange dye molecules in aqueous solution.
- Metal-organic gel,
- Benzimidazole derivative,
- Multi-stimuli responsive,
- Dye absorption
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沈阳化工大学材料科学与工程学院沈阳 110142