Polymers 2013, 5(4), 1203-1214; doi:10.3390/polym5041203
Article

Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water

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Received: 12 August 2013; in revised form: 18 September 2013 / Accepted: 8 October 2013 / Published: 14 October 2013
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Abstract: 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.
Keywords: poly(ionic liquid); adsorption; water treatment; methyl blue; chromium
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MDPI and ACS Style

Mi, H.; Jiang, Z.; Kong, J. Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water. Polymers 2013, 5, 1203-1214.

AMA Style

Mi H, Jiang Z, Kong J. Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water. Polymers. 2013; 5(4):1203-1214.

Chicago/Turabian Style

Mi, Hao; Jiang, Zhiguo; Kong, Jie. 2013. "Hydrophobic Poly(ionic liquid) for Highly Effective Separation of Methyl Blue and Chromium Ions from Water." Polymers 5, no. 4: 1203-1214.

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