Zero-valent iron-manganese bionic coral island and preparation method and application thereof

Abstract

The invention belongs to the technical field of environmental functional materials, and particularly relates to a zero-valent iron-manganese bionic coral island and a preparation method and application thereof. According to the zero-valent iron-manganese bionic coral island, a biomass raw material is used as a carbon precursor, zinc chloride is used as a main pore-forming agent, ferric chloride and manganese chloride are added as auxiliary pore-forming agents and an iron-manganese precursor, and the zero-valent iron-manganese bionic coral island is prepared through a one-step carbon thermal reduction method in an inert atmosphere. And finally obtaining the zero-valent iron-manganese bionic coral island with a zero-valent iron-manganese bimetal nanorod array coated with a layer of graphitized carbon film and uniformly growing on the surface of the porous biochar. The zero-valent iron-manganese bionic coral island has excellent H2O2 catalysis performance and reductive dehalogenation capability, can realize efficient degradation of organic pollutants in water, especially halogenated organic pollutants, can be used for effective remediation of organic pollutants in wastewater, underground water and polluted soil, and has a wide application prospect.

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