Journal
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Volume 36, Issue 12, Pages 1793-1798Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01932691.2014.974814
Keywords
Adsorptive membrane; carbon nanotubes; chitosan; heavy metal ions
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Carbon nanotubes were synthesized via the chemical vapor deposition method using cyclohexanol and ferrocene as carbon precursor and catalyst, respectively, and then they are functionalized with acid treatment. Chitosan/polyvinyl alcohol adsorptive membrane incorporated with carbon nanotubes (CS/PVA-CNTs membrane) was prepared via the solution casting method. The CS/ PVA-CNTs membrane was employed for adsorption of lead and zinc ions from aqueous solutions. Various isotherms and kinetic models were applied to fit the experimental data. It was found out that adsorption behavior of the heavy metal ions using CS/PVA-CNTs membrane match well with the Freundlich isotherm and the pseudo-first-order kinetic models.
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