title: Preparation of the chitosan grafted poly (quaternary ammonium)/Fe3O4 nanoparticles and its adsorption performance for food yellow 3.
abstract: 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/SC-Fe3O4 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-HTCC/SC-Fe3O4) composite magnetic nanoparticles. The adsorption kinetics, adsorption isotherms, adsorption thermodynamics, and desorption and reusability of the magnetic nanoparticles were investigated.
authors: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China. Electronic address: cylsy@163.com.
authors: Chen
authors: C
authors: Yu
authors: China National Food Quality & Safety Supervision and Inspection Center, Beijing 100094, PR China.
authors: Jianqiang
authors: J
authors: Geng
authors: School of Chemistry, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Yunxia
authors: Y
authors: Zhuang
authors: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Jian
authors: J
authors: Zhao
authors: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Liqiu
authors: L
authors: Chu
authors: China National Food Quality & Safety Supervision and Inspection Center, Beijing 100094, PR China.
authors: Xiaoxuan
authors: X
authors: Luo
authors: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Ying
authors: Y
authors: Zhao
authors: School of Chemistry, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Yanwen
authors: Y
authors: Guo
mesh_terms: D000327:Adsorption; D064751:Ammonium Compounds / Q000737:chemistry* / Q000493:pharmacokinetics; D001391:Azo Compounds / Q000493:pharmacokinetics*; D048271:Chitosan / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods; D052203:Ferrosoferric Oxide / Q000737:chemistry* / Q000493:pharmacokinetics; D005505:Food Coloring Agents / Q000493:pharmacokinetics*; D006801:Humans; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics
chemical_list: D064751:Ammonium Compounds; D001391:Azo Compounds; D005505:Food Coloring Agents; D058185:Magnetite Nanoparticles; D011108:Polymers; D014874:Water Pollutants, Chemical; D048271:Chitosan; C005842:6-hydroxy-5-((p- sulfophenyl)azo)-2-naphthalenesulfonic acid disodium salt; D052203:Ferrosoferric Oxide
keywords: Adsorption; Chitosan; Composite magnetic nanoparticles; Food dye; Poly (quaternary ammonium)