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Microwave Induced Catalytic Oxidation of Methylene Blue in Water by ε-MnO_2

Microwave Induced Catalytic Oxidation of Methylene Blue in Water by ε-MnO_2
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摘要 Microwave induced catalytic oxidation has been an important mean for treating high-concentration organic pollutants. Microwave catalyst is the key factor of the pollutants removal efficiency. Manganese oxides are excellent microwave absorbing materials which may play a potential role in treating organic pollutants by microwave induction. Manganese oxides are mainly constituted by [MnO6] octohedra connected to form framework or layered structures, and are usually classified into pyrolusite-ramsdellite family with (1×n) tunnel structure, hollandite-romanechite family with (2×n) tunnel structure, todorokite family with (3×n) tunnel structure and birnessite family with (1×∞) layered structure respectively. However, previous studies focused on the catalytic degradation efficiency or process conditions, lack of discussion on the related mechanism and few studies involved in the structural details of the catalysts. Microwave induced catalytic oxidation has been an important mean for treating high-concentration organic pollutants. Microwave catalyst is the key factor of the pollutants removal efficiency. Manganese oxides are excellent microwave absorbing materials which may play a potential role in treating organic pollutants by microwave induction. Manganese oxides are mainly constituted by [MnO6] octohedra connected to form framework or layered structures, and are usually classified into pyrolusite-ramsdellite family with (1×n) tunnel structure, hollandite-romanechite family with (2×n) tunnel structure, todorokite family with (3×n) tunnel structure and birnessite family with (1×∞) layered structure respectively. However, previous studies focused on the catalytic degradation efficiency or process conditions, lack of discussion on the related mechanism and few studies involved in the structural details of the catalysts.
出处 《矿物学报》 CAS CSCD 北大核心 2013年第S1期102-102,共1页 Acta Mineralogica Sinica
关键词 microwave catalyst MANGANESE OXIDES METHYLENE BLUE microwave catalyst manganese oxides methylene blue
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