Journal
JOURNAL OF ENVIRONMENTAL SCIENCES
Volume 26, Issue 5, Pages 1203-1211Publisher
SCIENCE PRESS
DOI: 10.1016/S1001-0742(13)60513-6
Keywords
adsorption; dye; grafting polymerization; carboxymethyl cellulose; acrylic acid
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Funding
- National Natural Science Foundation of China [21104047]
- Outstanding Young Innovative Fund of Xinjiang Bingtuan, China [2010JC25]
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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.
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