Solvent impregnated resin prepared using ionic liquid Cyphos IL 104 for Cr(VI) removal

被引：34
作者：
Yang Xiu-yun [1 ]
Zhang Jian-ping [1 ,2 ]
Guo Lin [2 ,3 ]
Zhao He [1 ,2 ]
Zhang Yang [2 ,3 ]
Chen Ji [2 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 12期
基金：
中国国家自然科学基金;
关键词：
solid-liquid extraction; Cyphos IL 104; Cr(VI); resin; adsorption isotherm; separation; desorption; METAL-IONS; CHROMIUM(VI) TRANSPORT; AQUEOUS-SOLUTIONS; SILICA MATERIALS; EXTRACTION; ADSORPTION; EXCHANGE; ACID; SELECTIVITY; MEMBRANES;
D O I：
10.1016/S1003-6326(12)61764-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Ionic liquid (IL) trihexyl (tetradecyl) phosphonium bis 2,4,4-trimethylpentylphosphinate (Cyphos IL 104) was impregnated on XAD-7 resin. The solvent impreganated resin (SIR) was prepared and applied in Cr(VI) removal. The morphology and the thermal stability of the resins were explored. The effects of equilibrium time and initial pH value on Cr(VI) adsorption were investigated. Adsorption isotherm, separation and desorption of the SIR, and selectivity of SIR were also explored. The results show that Cyphos IL 104 exists in the inner XAD-7 resin, and the optimum pH value range of the SIR for Cr(VI) extraction is 0 to 2. When NaOH used as desorption solution, the Cr(VI) can be effectively desorbed from the SIR.
引用
收藏
页码：3126 / 3130
页数：5
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