Application of synergistic aza-graphene with manganese oxide to near infrared nitrogen removal

Abstract

The invention discloses application of synergistic aza-graphene with manganese oxide to near infrared nitrogen removal. The application includes degrading ammonia nitrogen to obtain N2 and H2O by the aid of composite aza-graphene materials with the manganese oxide under near infrared conditions. The composite aza-graphene materials with the manganese oxide are used as photocatalysts. The application has the advantages that the ammonia nitrogen is photocatalytically degraded by the aid of the composite aza-graphene materials with the manganese oxide, the composite aza-graphene materials have ammonia nitrogen molecular recognition and infrared photocatalytic degradation functions, accordingly, the ammonia nitrogen can be degraded to obtain the N2 and the H2O in near infrared light, and the ammonia nitrogen degradation rate still can be higher than 92% after the photocatalysts are repeatedly used for photocatalytically degrading ammonia nitrogen by 5-10 times.

Description

technical field [0001] The invention relates to a manganese oxide composite azagraphene material and its application in catalytic degradation of ammonia nitrogen by using near-infrared light. Background technique [0002] Using solar energy to solve environmental energy problems originated in 1972 when Fujishima used TiO 2 Photoelectrode electrolysis of water to produce hydrogen, followed by Carey in 1976 reported the use of TiO 2 Photocatalytic oxidation eliminates the toxicity of polychlorinated diphenols. Since then, the use of solar energy to degrade environmental pollutants has rapidly become a research hotspot. However, TiO 2 It can only use ultraviolet light, which accounts for about 4% of solar energy, for TiO 2 Doping and developing Fe 2 o 3 、WO 3 、 Bi 2 WO 6 Although some new catalysts such as X-rays have partially solved the problem of utilizing visible light, infrared light, which accounts for nearly 50% of solar energy, still needs to be developed and ut...

AI Technical Summary

Problems solved by technology

However, TiO 2 It can only use ultraviolet light, which accounts for about 4% of solar energy, for TiO 2 Doping and developing Fe 2 o 3 、WO 3 、Bi 2 WO 6 Although some new catalysts have partially solved the problem of utilizing visible light, infrared light, which accounts for nearly 50% of solar energy, still needs to be developed and utilized.

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