Simultaneous Extraction, Enrichment and Removal of Dyes from Aqueous Solutions Using a Magnetic Aqueous Micellar Two-Phase System
文献类型: 外文期刊
第一作者: Wu, Shuanggen
作者: Wu, Shuanggen;Sun, Danyu;Li, Fenfang;Wang, Chaoyun;Yang, Yuanru;Tan, Zhijian;Wang, Chaoyun;Yang, Yuanru;Tan, Zhijian
作者机构:
关键词: magnetic nanoparticles;aqueous micellar two-phase system;nonionic surfactant;dyes;extraction
期刊名称:APPLIED SCIENCES-BASEL ( 影响因子:2.679; 五年影响因子:2.736 )
ISSN: 2076-3417
年卷期: 2017 年 7 卷 12 期
页码:
收录情况: SCI
摘要: The magnetic aqueous micellar two-phase system (MAMTPS) has the advantages combined of magnetic solid phase extraction (MSPE) and aqueous micellar two-phase system (AMTPS). Thus, MAMTPS based on Fe3O4 magnetic nanoparticles (MNPs) and a nonionic surfactant Triton X-114 (TX-114) was developed for the extraction, enrichment and removal of three dyes (Congo red, methyl blue, and methyl violet) from aqueous solutions in this study. The MNPs Fe3O4@ NH2 was screened as the optimal MNPs benefiting the extraction. Then, the influencing factors of MNPs amount, TX-114 concentration, vibration time, and extraction temperature were investigated in detail. The results showed that the extraction efficiencies of three dyes almost reached 100% using MAMTPS under the optimal conditions; MAMTPS had higher extraction ability than the individual MSPE or AMTPS. Thus, MAMTPS had the advantages of simple operation, high extraction ability, easy recycling of MNPs, and short phase-separation time, which showspotential for use in the extraction and analysis of contaminants from water samples.
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