title: Dyes adsorption using a synthetic carboxymethyl cellulose-acrylic acid adsorbent.
abstract: Removal of noxious dyes is gaining public and technological attention. Herein grafting polymerization was employed to produce a novel adsorbent using acrylic acid and carboxymethyl cellulose for dye removal. Scanning electron microscopy and Fourier-transform infrared spectroscopy verified the adsorbent formed under optimized reaction conditions. The removal ratio of adsorbent to Methyl Orange, Disperse Blue 2BLN and malachite green chloride reached to 84.2%, 79.6% and 99.9%, respectively. The greater agreement between the calculated and experimental results suggested that pseudo second-order kinetic model better represents the kinetic adsorption data. Equilibrium adsorptions of dyes were better explained by the Temkin isotherm. The results implied that this new cellulose-based absorbent had the universality for removal of dyes through the chemical adsorption mechanism.
authors: School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China. Electronic address: zhgl_food@sina.com.
authors: Genlin
authors: G
authors: Zhang
authors: School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China.
authors: Lijuan
authors: L
authors: Yi
authors: School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China.
authors: Hui
authors: H
authors: Deng
authors: School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China.
authors: Ping
authors: P
authors: Sun
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D000327:Adsorption; D002266:Carboxymethylcellulose Sodium / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008855:Microscopy, Electron, Scanning; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D000179:Acrylates; D004396:Coloring Agents; D014874:Water Pollutants, Chemical; C036658:acrylic acid; D002266:Carboxymethylcellulose Sodium
keywords: acrylic acid; adsorption; carboxymethyl cellulose; dye; grafting polymerization