The Preparation of Na2CO3-Active Carbon and its Adsorption Behavior for Phenol

Feng Chen; Fang Ming Ni; Wei Zhang

doi:10.4028/www.scientific.net/AMR.518-523.144

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523The Preparation of Na2CO3-Active Carbon and its...

The Preparation of Na₂CO₃-Active Carbon and its Adsorption Behavior for Phenol

Abstract:

In order to develop high-performance carbon, the orthogonal test was used to optimize the conditions of modification. Meanwhile,the carbon as a carrier was modified with sodium carbonate solution under the optimal conditions.The amount of total surface acidic functional groups and BET surface were determined. And the adsorption behavior for phenol was inspected.The results show that under the conditions of Na₂CO₃ concentration of 1.5mol/l, soaking time of 2h, activated time of 3h and activated temperature of 500°C, the best removal rate could be obtained, the adsorption of phenol was155.83mg/g and improved 69.33% than the unmodified carbon’s. The BET surface of modified activated was 971.78m²/g and improved 4.44% than the unmodified carbon’s, the amount of total surface acidic functional groups reduced but the alkaline enhanced. Both Freundlich and Langmuir model of sorption isotherms could reflect the adsorption behavior of modified activated carbon for phenol, while the Freundlich model was more properly.

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Advanced Materials Research (Volumes 518-523)

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144-149

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.144

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Online since:

May 2012

Authors:

Feng Chen, Fang Ming Ni, Wei Zhang

Keywords:

Activated Carbon, Orthogonal Test, Phenol, Sorption Isotherm

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