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Photocatalytic Degradation of the Methyl Orange Solution Using Heteropoly Acid Supported on Molecular Sieve as Catalyst

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Abstract:

Photochemical catalyst PW/MCM-41 is prepared by impregnation method, and its photocatalytic degradation activity to methyl orange is studied. Results show that catalyst load, catalyst dosage，amount of H2O2, initial concentration of methyl orange and irradiation time are important factors for photocatalytic degradation. The best reaction conditions are: the catalyst load is 40%, the catalyst dosage is 5.0 g/L, the H2O2 dosage is 6.0 g/L, the initial concentration of methyl orange is 10 mg/L，and the irradiation time is 150 min. Under such conditions, the photocatalytic degradation rate could reach 84%. The catalyst exhibits high catalytic activity.

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Periodical:

Applied Mechanics and Materials (Volumes 295-298)

Pages:

1337-1340

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.295-298.1337

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Online since:

February 2013

Authors:

Yan Qin Huang

Keywords:

Heteropoly Acid, Methyl Orange, Molecular Sieve, Photocatalytic Degradation

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