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Article

Simultaneous Extraction, Enrichment and Removal of Dyes from Aqueous Solutions Using a Magnetic Aqueous Micellar Two-Phase System

1
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
2
Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Bart Van der Bruggen
Appl. Sci. 2017, 7(12), 1257; https://doi.org/10.3390/app7121257
Received: 10 November 2017 / Revised: 24 November 2017 / Accepted: 29 November 2017 / Published: 10 December 2017
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
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. View Full-Text
Keywords: magnetic nanoparticles; aqueous micellar two-phase system; nonionic surfactant; dyes; extraction magnetic nanoparticles; aqueous micellar two-phase system; nonionic surfactant; dyes; extraction
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MDPI and ACS Style

Wu, S.; Sun, D.; Wang, C.; Yang, Y.; Li, F.; Tan, Z. Simultaneous Extraction, Enrichment and Removal of Dyes from Aqueous Solutions Using a Magnetic Aqueous Micellar Two-Phase System. Appl. Sci. 2017, 7, 1257. https://doi.org/10.3390/app7121257

AMA Style

Wu S, Sun D, Wang C, Yang Y, Li F, Tan Z. Simultaneous Extraction, Enrichment and Removal of Dyes from Aqueous Solutions Using a Magnetic Aqueous Micellar Two-Phase System. Applied Sciences. 2017; 7(12):1257. https://doi.org/10.3390/app7121257

Chicago/Turabian Style

Wu, Shuanggen, Danyu Sun, Chaoyun Wang, Yuanru Yang, Fenfang Li, and Zhijian Tan. 2017. "Simultaneous Extraction, Enrichment and Removal of Dyes from Aqueous Solutions Using a Magnetic Aqueous Micellar Two-Phase System" Applied Sciences 7, no. 12: 1257. https://doi.org/10.3390/app7121257

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