title: Production of cationic xylan-METAC copolymer as a flocculant for textile industry.
abstract: Xylan is a part of hemicelluloses of woody materials and can be converted to value-added products such as flocculants for the textile industry. To assess the production of flocculants from hemicelluloses of woody materials, xylan was selected as a model and rendered cationic via copolymerization. In this study, the copolymerization reaction of xylan and [2-(methacryloyloxy) ethyl] trimethylammonium chloride (METAC) was optimized. The optimum parameters were 3mol/mol METAC/xylose, 3h reaction time, 80°C reaction temperature, pH 7 and 25g/L xylan concentration. The copolymer was characterized by a charge density analyzer, viscometer, gel permeation chromatography (GPC), light scattering instrument, Fourier transform infrared spectroscopy (FTIR) and an elemental analyzer. The application of the cationic xylan copolymer as a flocculant to decolorize the simulated reactive orange 16 azo-dye wastewater was evaluated. The results confirmed that, by having 160mg/L xylan-METAC concentration in the dye solution with the concentration of 100mg/L, 97.8% of dye could be removed.
authors.affiliation: Tianjin University of Science & Technology, Tianjin 300222, China; Key Laboratory of Pulp and Paper Science and Technology of Education Ministry of China, Qilu University of Technology, Jinan 250353, China; Department of Chemical Engineering, Lakehead University, Thunder Bay, ON, Canada P7B 5E1.
authors.forename: Shoujuan
authors.initials: S
authors.lastname: Wang
authors.affiliation: Tianjin University of Science & Technology, Tianjin 300222, China. Electronic address: qingxihou@tust.edu.cn.
authors.forename: Qingxi
authors.initials: Q
authors.lastname: Hou
authors.affiliation: Key Laboratory of Pulp and Paper Science and Technology of Education Ministry of China, Qilu University of Technology, Jinan 250353, China; Department of Chemical Engineering, Lakehead University, Thunder Bay, ON, Canada P7B 5E1.
authors.forename: Fangong
authors.initials: F
authors.lastname: Kong
authors.affiliation: Department of Chemical Engineering, Lakehead University, Thunder Bay, ON, Canada P7B 5E1. Electronic address: pfatehi@lakeheadu.ca.
authors.forename: Pedram
authors.initials: P
authors.lastname: Fatehi
mesh_terms: D001391:Azo Compounds / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D004396:Coloring Agents / Q000737:chemistry; D005427:Flocculation; D006863:Hydrogen-Ion Concentration; D008689:Methacrylates / Q000737:chemistry*; D008970:Molecular Weight; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013783:Textile Industry; D013997:Time Factors; D014783:Viscosity; D014865:Waste Disposal, Fluid; D014990:Xylans / Q000737:chemistry*
chemical_list: C120889:2-(trimethylammonio)ethyl methacrylate; D001391:Azo Compounds; D002412:Cations; D004396:Coloring Agents; D008689:Methacrylates; D011108:Polymers; D014990:Xylans; C483723:reactive orange 16
keywords: Azo-dye wastewater; Copolymerization; Flocculant; METAC; Xylan