Adsorption of Malachite Green on Heishan Coal-Based Activated Carbon

Mao Sheng Tao; De Lian Yi; Lin Wu; Zhao Hui Ouyang; Hui Min Zhang; Qiao Hua; Guo Fei Liu

doi:10.4028/www.scientific.net/AMR.396-398.2384

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Adsorption of Malachite Green on Heishan...

Adsorption of Malachite Green on Heishan Coal-Based Activated Carbon

Abstract:

_{Subscript text}An adsorbent has been prepared from Heishan coal by chemical activation with KOH, the activated carbon has a BET surface area of 801.53 m2/g, the meso-pore ratio is 89.63%, SEM image shows that it is very rich in pore structure. The activated carbon was used to adsorb malachite green from an aqueous solution in room temperature. The effects of pH, contact time and dosage have been studied. The results show that the adsorption of malachite green from aqueous solution onto Heishan coal-based activated carbon proceeds according to the pseudo-second-order model, the adsorption equilibrium data were better represented by the Langmuir isotherm than Freundlich isotherm.

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Advanced Materials Research (Volumes 396-398)

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2384-2387

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.2384

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November 2011

Authors:

Mao Sheng Tao, De Lian Yi, Lin Wu, Zhao Hui Ouyang, Hui Min Zhang, Qiao Hua, Guo Fei Liu

Keywords:

Activated Carbon (AC), Adsorption Isotherm, Adsorption Kinetics, Heishan Coal, Malachite Green

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