(2016) Sorption of acid dye by surfactant modificated natural zeolites. Journal of the Taiwan Institute of Chemical Engineers. pp. 186-194.
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Abstract
The adsorption of Acid Red 18 (AR18) by a natural zeolite (NZ) and its surfactant modified form (SMNZ) was investigated. The effects of initial dye concentration, contact time and adsorbent dose on the removal of AR18 were examined. Sorption kinetic was evaluated using the pseudo-second order, Elovich and Lagergren's first-order models. The equilibrium was analyzed by Freundlich, Langmuir, and Dubinin-Radushkevich models. The pseudo-second order kinetic model was found to agree well with the experimental data. The Langmuir isotherm was found to best represent the sorption data. The capacities of SMNZ and NZ for AR18 were found 20.42 and 1.17 mg/g, respectively. SMNZ could be a useful sorbent for the removal of AR18 from aqueous solutions. © 2015 Taiwan Institute of Chemical Engineers.
| Item Type: | Article |
|---|---|
| Keywords: | Azo dyes; Dyeing; Dyes; Isotherms; Solutions; Sorption; Surface active agents, Acid red; Dubinin-Radushkevich; First-order models; Initial dye concentration; Langmuir isotherm; Natural zeolites; Pseudo second order; Pseudo-second-order kinetic models, Adsorption |
| Page Range: | pp. 186-194 |
| Journal or Publication Title: | Journal of the Taiwan Institute of Chemical Engineers |
| Volume: | 59 |
| Publisher: | Taiwan Institute of Chemical Engineers |
| Depositing User: | ms soheila Bazm |
| URI: | http://eprints.ssu.ac.ir/id/eprint/9844 |
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