Cationic Dye Removal from Aqueous Solutions Using Ionic Liquid and Nonionic Surfactant-Ionic Liquid Systems: A Comparative Study Based upon Experimental Design

被引：34
|
作者：
Talbi, Z. [1 ]
Haddou, B. [1 ]
Ghouas, H. [1 ]
Kameche, M. [1 ]
Derriche, Z. [1 ]
Gourdon, C. [2 ]
机构：
[1] UST Oran, Fac Sci, Dept Chim, Lab Physicochim Mat, Oran, Algeria
[2] UMR, Lab Genie Chim, Toulouse, France
来源：
CHEMICAL ENGINEERING COMMUNICATIONS | 2014年 / 201卷 / 01期
关键词：
Cloud point extraction; Ionic liquid; Methylene blue; Nonionic surfactant; CLOUD POINT EXTRACTION; METHYLENE-BLUE; FOOD SAMPLES; ORANGE-II; AZO DYES; WATER; PROTEIN; PHENOL;
D O I：
10.1080/00986445.2012.759563
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In order to separate methylene blue from aqueous solution, a novel method based upon liquid-liquid extraction, using a nonionic surfactant-ionic liquid system as extracting phase, was investigated. A comparative study was carried out with the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate, known as [C4mim]PF6. By using the nonionic surfactant-ionic liquid system, the extraction efficiency could reach 97.8%, indicating that the addition of nonionic surfactant (Triton X-114) significantly improves the extraction of methylene blue. Under optimal conditions, the dye concentration in the effluent showed an almost 50-fold reduction. However, the extraction extent of methylene blue was found to be low at low pH values, and in the presence of K2CO3, which may be useful for surfactant-ionic liquid system regeneration.
引用
收藏
页码：41 / 52
页数：12
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