Preparation of the chitosan grafted poly (quaternary ammonium)/Fe3O4 nanoparticles and its adsorption performance for food yellow 3

被引:37
作者
Chen, Yu [1 ]
Geng, Jianqiang [2 ]
Zhuang, Yunxia [3 ]
Zhao, Jian [1 ]
Chu, Liqiu [1 ]
Luo, Xiaoxuan [2 ]
Zhao, Ying [1 ]
Guo, Yanwen [3 ]
机构
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
[2] China Natl Food Qual & Safety Supervis & Inspect, Beijing 100094, Peoples R China
[3] Beijing Inst Technol, Sch Chem, Beijing 100081, Peoples R China
关键词
Chitosan Poly (quaternary ammonium); Composite magnetic nanoparticles; Adsorption; Food dye; MAGNETIC CHITOSAN; AQUEOUS-SOLUTIONS; POTENTIAL-THEORY; REACTIVE DYES; REMOVAL; COMPOSITES; EFFLUENTS; ADSORBENT; METAL; MODEL;
D O I
10.1016/j.carbpol.2016.06.114
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Chitosan and its derivatives can be used to modify magnetic materials to promote the adsorption properties of the magnetic materials and avoid the weakness of chitosan and its derivatives. In the present study, chitosan grafted poly(trimethyl allyl ammonium chloride) (CTS-g-PTMAAC) was prepared by graft copolymerization; then it was coated on the surfaces of the sodium citrate coated Fe3O4 nanoparticles (SC-Fe3O4) to prepare a novel composite CTS-g-PTMAAC/SC-Fe3O4 magnetic nanoparticles, with which possesses abundant surface positive charges. The structure and properties of the CTS-g-PTMAAC/SCFe3 04 composite magnetic nanoparticles were characterized by FTIR, TEM, VSM, and zeta potential. The dye adsorption characteristics of the CTS-g-PTMAAC/SC-Fe3O4 nanoparticles were determined using the food yellow 3 aqueous solutions as a model food effluent. Effect of pH of the dye solution on the adsorption of food yellow 3 was determined and compared with N-2-hydroxylpropyl trimethyl ammonium chloride chitosan coated sodium citrate-Fe3O4 (CTS-g-HTCCISC-Fe3O4) composite magnetic nanoparticles. The adsorption kinetics, adsorption isotherms, adsorption thermodynamics, and desorption and reusability of the magnetic nanoparticles were investigated. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:327 / 336
页数:10
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