High-strength hydrogel as a reusable adsorbent of copper ions

Journal of Hazardous Materials
Ning WangWenguang Liu

Abstract

A mechanically strong hydrogel was prepared by photoinitiated polymerization of oligo(ethylene glycol) methacrylate (OEGMA), 2-vinyl-4,6-diamino-1,3,5-triazine (VDT) and cross-linker N,N'-methylenebisacrylamide (MBAA). Introduction of the monomer VDT considerably strengthened the mechanical properties of the hydrogel by self-hydrogen bonding of diaminotriazine, and enhanced the adsorption of copper ion onto the hydrogel by chelation between amino groups and metal ion. Adsorption studies were carried out by varying the OEGMA/VDT ratio, contact time, pH value, counterion and initial concentration of Cu(2+) ions. The evaluation of adsorption properties showed that the hydrogel exhibited better correlation with Langmuir isotherm model. This adsorbent could be used repeatedly with little loss in adsorption capacity.

References

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Nov 16, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Jing HuGuohua Chen
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Citations

Jul 19, 2013·Journal of Biomaterials Science. Polymer Edition·Xiufeng HuWenguang Liu
Jul 3, 2013·Journal of Hazardous Materials·Young Gun KoUng Su Choi
Oct 26, 2016·Journal of Hazardous Materials·Man ZhangChangsheng Zhao
Oct 20, 2012·Macromolecular Rapid Communications·Han GaoWenguang Liu
Jun 24, 2015·Macromolecular Rapid Communications·Bing XuWenguang Liu
May 29, 2018·Macromolecular Rapid Communications·Bo Liu, Wenguang Liu
Jul 17, 2018·Environmental Science and Pollution Research International·Vinh Van TranYoung-Chul Lee
May 8, 2020·Environmental Science and Pollution Research International·Jun WanTian C Zhang
Apr 1, 2020·International Journal of Biological Macromolecules·Rafael GerhardtLuiz A A Pinto

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