title: [Preparation of N-alkyl chitosan and its adsorption of 2,4-dichlorophenol].
abstract: OBJECTIVE
  To study the adsorption of 2,4-dichlorophenol of the modified chitosan.
  
  
  METHODS
  A type of N-alkyl chitosan derivative was synthesized by using glutaraldehyde as a kind of crosslinker and characterized by FTIR. The effects of adsorption conditions, such as time, pH, the concentration of 2,4-dichlorophenol and the amount of the modified chitosan on the adsorption quantity of 2,4-dichlorophenol adsorpted were studied.
  
  
  RESULTS
  The resistance on acid and alkaline of N-alkyl chitosan exhibited was good acid resistance. At pH 6.5, the adsorption of 2,4-dichlorophenol reached the maximum in 40 minutes. Adsorption capability of the modified chitosan was increased by 13.8-fold and it could be regenerated and reused.
  
  
  CONCLUSIONS
  The crosslinked chitosan had good adsorption capability for 2,4-dichlorophenol.
authors.affiliation: The Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu 241000, China. icecream120714@sina.com
authors.forename: Mei
authors.initials: M
authors.lastname: Shi
authors.forename: Wenwu
authors.initials: W
authors.lastname: Xu
authors.forename: Qing
authors.initials: Q
authors.lastname: Meng
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D048271:Chitosan / Q000737:chemistry*; D002733:Chlorophenols / Q000737:chemistry / Q000302:isolation & purification*; D003432:Cross-Linking Reagents / Q000737:chemistry; D005976:Glutaral / Q000737:chemistry*; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry*
chemical_list: D048271:Chitosan; D002733:Chlorophenols; D003432:Cross-Linking Reagents; D005976:Glutaral; D062065:Wastewater; C004762:2,4-dichlorophenol