Silver adsorption enhancement from aqueous and photographic waste solutions by mercerized coconut fiber
The mercerized coconut fiber (CF-NaOH) was prepared by treating the pristine coconut fiber (CF-Pure) with NaOH solution. The morphology and chemical composition of CF-Pure changed after mercerization process. The maximum Ag(I) adsorption capacity of the CF-Pure and CF-NaOH was 0.502 and 0.612 mmol/g...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor and Francis Ltd.
2015
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| Subjects: | |
| Online Access: | http://eprints.utm.my/55971/ http://eprints.utm.my/55971/ http://eprints.utm.my/55971/ http://eprints.utm.my/55971/1/NorasikinSaman2015_SilverAdsorptionEnhancementFromAqueous.pdf |
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| Summary: | The mercerized coconut fiber (CF-NaOH) was prepared by treating the pristine coconut fiber (CF-Pure) with NaOH solution. The morphology and chemical composition of CF-Pure changed after mercerization process. The maximum Ag(I) adsorption capacity of the CF-Pure and CF-NaOH was 0.502 and 0.612 mmol/g, in which the equilibrium data fitted to the Freundlich and Langmuir isotherm models, respectively. The Ag(I) adsorption rate also increased by using CF-NaOH and the kinetic data of both CF-Pure and CF-NaOH obeyed the pseudo-second order kinetic model. The enhancement of Ag(I) adsorption selectivity from photographic waste solution was also observed for the CF-NaOH. |
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