? Detection of illegal dyes in foods using a polyethersulfone/multi-walled carbon nanotubes composite membrane as a cleanup method
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    2018, Vol. 17 Issue (03): 716-722     DOI: 10.1016/S2095-3119(17)61694-0
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Detection of illegal dyes in foods using a polyethersulfone/multi-walled carbon nanotubes composite membrane as a cleanup method
HE Ya-hui1, 2, WANG Jing2 
1 School of Food Science, Xinyang College of Agriculture and Forestry, Xinyang 464000, P.R.China
2 Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
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Abstract In this paper, a polyethersulfone (PES)/multi-walled carbon nanotubes (MWCNTs) composite membrane was prepared using phase inversion.  The surface morphology and internal structure of the membrane were observed by scanning electron microscopy (SEM).  The effects of MWCNTs content on various aspects of membrane performance such as porosity, water flux, and antifouling characteristics were investigated.  Results showed that proper addition of MWCNTs would improve the properties of the membrane.  MWCNTs had a strong adsorption capacity for industrial dyes and the composite membrane could be used as an effective method to identify and clean up illegal dyes in foods.  In addition, this new method for identifying dyes is rapid: the cleanup procedure in the determination of illegal dyes in foods by the composite membrane was shortened to 30 min or less compared to 6–8 h for traditional methods.
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Key wordsPES/MWCNTs composite ultrafiltration membrane     adsorption     industrial dye     cleanup     determination of illegal dyes in foods     
Received: 2017-02-17; Published: 2017-06-05

The study was supported by the Fund of Key Projects of Higher Education in Henan Province, China (17A550018) and the Fund of Henan Province Science and Technology Research Project, China (172102310314).

Corresponding Authors: Correspondence WANG Jing, Tel/Fax: +86-10-82106568, E-mail: w_jing2001 @126.com   
About author: HE Ya-hui, E-mail: hyh2900134@yeah.net;
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HE Ya-hui, WANG Jing. Detection of illegal dyes in foods using a polyethersulfone/multi-walled carbon nanotubes composite membrane as a cleanup method[J]. Journal of Integrative Agriculture, 2018, 17(03): 716-722.
http://www.chinaagrisci.com/Jwk_zgnykxen/EN/10.1016/S2095-3119(17)61694-0      or     http://www.chinaagrisci.com/Jwk_zgnykxen/EN/Y2018/V17/I03/716
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