Effect of Physicochemical Parameters on Methylene Blue Adsorption by Sulfuric Acid Treated Spent Grated Coconut

Khadijah Khalid; Megat Ahmad Kamal Megat Hanafiah; Wan Khaima Azira Wan Mat Khalir

doi:10.4028/www.scientific.net/AMM.752-753.71

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Effect of Physicochemical Parameters on Methylene...

Effect of Physicochemical Parameters on Methylene Blue Adsorption by Sulfuric Acid Treated Spent Grated Coconut

Abstract:

The effect of physicochemical parameters on methylene blue (MB) adsorption by sulfuric acid treated spent grated coconut (SSGC) was investigated. The field emission scanning electron microscope (FESEM) images showed a change in surface morphology of spent grated coconut before and after acid treatment. Energy dispersive X-ray (EDX) spectrometer suggested the mechanism of ion-exchange occurred during MB adsorption onto SSGC. The pH_pzc value of SSGC was 5.40. The amount of MB adsorbed remained constant after pH 3. The optimum dosage of SSGC was observed at 0.03 g, while the stirring rate did not significantly affect the amount of MB adsorbed. This work suggested electrostatic attraction and ion-exchange as the main mechanisms involved in MB adsorption.

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Applied Mechanics and Materials (Volumes 752-753)

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71-76

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https://doi.org/10.4028/www.scientific.net/AMM.752-753.71

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April 2015

Authors:

Khadijah Khalid*, Megat Ahmad Kamal Megat Hanafiah, Wan Khaima Azira Wan Mat Khalir

Keywords:

Adsorption, Mechanism, Methylene Blue, Spent Grated Coconut

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