Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water
Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water
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DOI：
10.3390/polym5041203
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发表时间：
2013-10
期刊：
影响因子：
5
通讯作者：
Hao‐Yang Mi;Zhiguo Jiang;J. Kong
中科院分区：
文献类型：
--
作者：
Hao‐Yang Mi;Zhiguo Jiang;J. Kong
合成了含咪唑阳离子和双三氟甲磺酰亚胺阴离子的聚（3-乙基-1-乙烯基咪唑双三氟甲磺酰亚胺）（PVI-TFSI）疏水性离子液体，用于分离水中的甲基蓝和铬离子[Cr（VI）]。PVI-TSFI/水体系对甲基蓝和Cr（VI）的吸附分别在60 min和12 h内达到平衡，最大吸附率分别为97.6%和98.0%。PVI-TFSI对甲基蓝和Cr（VI）的吸附均符合Langmuir吸附模型。PVI-TFSI对甲基蓝和Cr（VI）的最大吸附容量分别为476.2和17.9 mg/g。合成的疏水聚离子液体对甲基蓝和Cr（VI）具有良好的吸附性能，在水处理中对有机染料和重金属离子具有良好的分离效果。
The hydrophobic poly(ionic liquid) of poly(3-ethyl-1-vinylimidazolium bis(trifluoromethanesulfonyl)imide) (PVI-TFSI) containing imidazolium cations and bis(trifluoromethanesulfonyl)imide anions was synthesized for the separation of methyl blue and chromium ions [Cr(VI)] from water. The adsorption of methyl blue and Cr(VI) in PVI-TSFI/water system reached equilibrium stage within 60 min and 12 h, and the maximum adsorbed percentage for methyl blue and Cr(VI) was 97.6% and 98.0%, respectively. The adsorption regi me of either methyl blue or Cr(VI) for PVI-TFSI was in correspondence with the Langmuir adsorption model. The maximum adsorption capacity of PVI-TFSI for methyl blue and Cr(VI) was determined as 476.2 and 17.9 mg/g, respectively. The hydrophobic poly(ionic liquid) with a remarkable adsorbent capacity of methyl blue and Cr(VI) can be conveniently synthesized and shows potential in water treatment for the effective separation of organic dyes or heavy metal ions.