Fe-N compound doped carrier catalyst, preparation method and application

Abstract

The invention discloses a preparation method of an Fe-N compound doped carrier catalyst. The preparation method comprises the following steps: (1) dispersing an Fe salt, imidazole and a carbon material into a solvent; (2) removing the solvent, and calcinating a dried sample at the temperature of 500 to 900 DEG C under a condition of nitrogen; (3) drying after acid pickling and washing to obtain the Fe-Im-carrier catalyst. The Fe-N compound doped carrier catalyst prepared and obtained in the invention is simple in preparation method, and is applicable for industrial mass production. The prepared and obtained catalyst is used in a Fenton system, and organic pollutants inside waste water can be degraded quickly and effectively. The Fe-N compound doped carrier catalyst prepared and obtained inthe invention is simple in preparation method, and is applicable for industrial mass production. The prepared and obtained catalyst is used in the Fenton system, and organic pollutants inside waste water can be degraded quickly and effectively.

Description

technical field [0001] The invention belongs to the technical field of catalyst synthesis, and in particular relates to an Fe-N composite doped carrier catalyst, a preparation method and an application in Fenton system oxidation degradation of organic matter in water. Background technique [0002] With the continuous development of society and economy and the innovation of technology, the emergence of some new pollutants has begun to cause serious threats and damage to the water environment, and even directly endanger human health through the food chain, such as pesticides, drugs and endocrine disruptors, etc. Moreover, these pollutants are usually highly toxic, persistent and refractory. Traditional water pollution remediation technologies are difficult to deal with these new organic pollutants. In recent years, the advanced oxidation technology that produces strong oxidizing free radicals has attracted much attention. It can oxidize and degrade refractory macromolecular or...

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Problems solved by technology

At present, homogeneous catalysis mainly uses Fe 2+ and Fe 3+ Homogeneous catalysis has the advantages of fast reaction speed and mild conditions, but it also has the disadvantages of narrow pH range, large sludge output and difficult separation of residual metal ions, which limit its practical application; compared with homogeneous catalysis, heterogeneous The phase catalysis method mainly uses catalysts such as transition metal-containing minerals to activate hydrogen peroxide to degrade organic matter. The solid catalyst is still easy to dissolve metal ions under acidic conditions, low catalytic activity and low utilization rate of hydrogen peroxide, etc.

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