Production of cationic xylan-METAC copolymer as a flocculant for textile industry

Shoujuan Wang; Qingxi Hou; Fangong Kong; Pedram Fatehi

doi:10.1016/j.carbpol.2015.02.015

Production of cationic xylan-METAC copolymer as a flocculant for textile industry

Carbohydr Polym. 2015 Jun 25:124:229-36. doi: 10.1016/j.carbpol.2015.02.015. Epub 2015 Feb 21.

Authors

Shoujuan Wang¹, Qingxi Hou², Fangong Kong³, Pedram Fatehi⁴

Affiliations

¹ 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.
² Tianjin University of Science & Technology, Tianjin 300222, China. Electronic address: qingxihou@tust.edu.cn.
³ 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.
⁴ Department of Chemical Engineering, Lakehead University, Thunder Bay, ON, Canada P7B 5E1. Electronic address: pfatehi@lakeheadu.ca.

PMID: 25839816
DOI: 10.1016/j.carbpol.2015.02.015

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.

Keywords: Azo-dye wastewater; Copolymerization; Flocculant; METAC; Xylan.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Azo Compounds / chemistry
Cations / chemistry
Coloring Agents / chemistry
Flocculation
Hydrogen-Ion Concentration
Methacrylates / chemistry*
Molecular Weight
Polymers / chemistry*
Spectroscopy, Fourier Transform Infrared
Temperature
Textile Industry
Time Factors
Viscosity
Waste Disposal, Fluid
Xylans / chemistry*

Substances

2-(trimethylammonio)ethyl methacrylate
Azo Compounds
Cations
Coloring Agents
Methacrylates
Polymers
Xylans
reactive orange 16