High-adsorption porous carbon supported zero-valent iron catalyst as well as preparation method and application thereof

A catalyst, zero-valent iron technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the reduction of oxidation efficiency, sulfate radical removal, secondary pollution and other problems, to achieve the effect of preventing iron agglomeration, facilitating recovery and separation, and stable physical and chemical properties
CN109999753AActive Publication Date: 2019-07-12SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2019-07-12

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Abstract

The invention discloses a high-adsorption porous carbon supported zero-valent iron catalyst as well as a preparation method and an application thereof and provides a new catalyst for an adsorbing andactivating oxidizing agent to decompose organic pollutants in soil and water. With high polymer and biomass as carbon sources, a compound catalyst with zero-valent iron supported in a porous carbon framework in a high-dispersion manner is prepared with a carbon thermal reduction one-step method. According to the prepared porous carbon supported zero-valent iron catalyst, nano zero-valent iron particles are uniformly distributed in the porous carbon framework, and the catalyst has a high specific surface area (500-1,000 m<2> / g) and large pore volume (0.3-0.7 cm<3> / g) and is magnetic. The preparation method of the catalyst can be used for batch production. The prepared catalyst can rapidly and massively adsorb organic pollutants, activate persulfate, hydrogen peroxide and other strong oxidizers, has the reaction activity higher than that of bivalent iron salt and imported commercial zero-valent iron and has broad application prospects in decomposing persistent organic pollutants in waterand soil.
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Description

technical field

[0001] The invention relates to the technical field of catalysts, in particular to a highly adsorbable porous carbon-loaded zero-valent iron catalyst and its preparation method and application. Background technique

[0002] In recent years, with the rapid development of industrial industries such as coal chemical industry and textile printing and dyeing, the problem of water environmental pollution caused by the discharge of printing and dyeing wastewater and phenol-containing wastewater has become more and more serious. Among them, polycyclic aromatic hydrocarbons and chlorophenols (Chlorophenols, CPs) continue to appear in water and soil environments. These compounds are difficult to biodegrade, so they accumulate in the ground and water environmental systems, which may cause mutations and carcinogenesis in organisms. . The presence of different refractory organic pollutants has been detected in many rivers and soils in my country. A large amount of pollu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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