Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 131, Issue 21, Pages -Publisher
WILEY
DOI: 10.1002/app.40988
Keywords
adsorption; applications; foams; polyurethanes
Categories
Funding
- Society Development Fund of Zhenjiang [SH2013020]
- Project of Science and Technology of Suzhou [SG201338]
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Synthetic dyes are commonly used in textile, paper, leather, food, plastic and cosmetic industries. In this study, a series of novel graphite oxide/polyurethane (GO/PU) polymeric foam materials were prepared by foaming technique. The GO/PU was applied to remove malachite green (MG) from aqueous solution. When static adsorption experiment was carried out with a GO content of 3.0%, a GO/PU dosage of 40 mg/mL, a temperature of 50 degrees C, and a time of 3 h, the highest adsorption efficiency can reach 99.7%. The kinetics, equilibrium and thermodynamics of MG adsorption onto GO/PU polymeric foam material were investigated. The results indicated that adsorption behavior was found to follow closely the pseudo-second order kinetics, equilibrium data were well fitted by Langmuir adsorption model and the adsorption process was spontaneous and endothermic. Prepared GO/PU foam material has potential application for the wastewater treatment containing MG dye. (C) 2014 Wiley Periodicals, Inc.
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