Application of MnO2 Materials to Dye Removal from Aqueous Solution by Adsorption

Wei Fang Dong; Li Hua Zang; Hao Li

doi:10.4028/www.scientific.net/AMM.361-363.760

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 361-363Application of MnO2 Materials to Dye Removal from...

Application of MnO₂ Materials to Dye Removal from Aqueous Solution by Adsorption

Abstract:

The adsorption capacity was compared for the dye wastewater onto adsorbent MnO₂. The effects of contact time and dosage of adsorbent were studied. The adsorption kinetics was analyzed. The results showed that MnO₂ possessed higher adsorption capacity to Methylene blue than Methyl orange which the removal efficiency could reached 94.82%and 78.63% respectively under the conditions (the dosage1.2g/L, time 60min, initial dye concentration 50mg/L, pH7). The dynamical data fit well with the pseudo second order kinetic model. The MnO₂ has higher Methylene blue adsorption capacity in short equilibrium times and are good alternative in wastewater treatment.

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Periodical:

Applied Mechanics and Materials (Volumes 361-363)

Pages:

760-763

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.361-363.760

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Online since:

August 2013

Authors:

Wei Fang Dong, Li Hua Zang, Hao Li

Keywords:

Adsorption, Kinetic, Methyl Orange, Methylene Blue, MnO₂

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