Confined range type pyrite cinder/iron oxychloride composite light-Fenton catalyst as well as preparation method and application of limited range type pyrite cinder/iron oxychloride composite light-Fenton catalyst

Abstract

The invention relates to a confinement type pyrite cinder / iron oxychloride composite light-Fenton catalyst as well as a preparation method and an application of the confinement type pyrite cinder / iron oxychloride composite light-Fenton catalyst. According to the method, iron extracted from the pyrite cinder is used as an iron source for generating iron oxychloride, and residual porous slag after the iron is extracted from the pyrite cinder is used as a template and a structure regulating agent for generating the iron oxychloride; the confined pyrite cinder / iron oxychloride composite light-Fenton catalyst is prepared through the steps of leaching iron in cinder, separating residual cinder, adsorbing a leached iron solution, calcining the residual cinder-iron solution and the like, so that the structure and morphology of iron oxychloride in the composite catalytic material are effectively regulated and controlled; and the generated iron oxychloride and iron oxide in the residual slag generate a synergistic effect, so that the light-Fenton catalytic degradation performance on organic pollutants such as antibiotics is remarkably improved, a new way is provided for high-value-added resource utilization of the pyrite cinder, and industrial production is easy to realize.

Description

technical field

[0001] The invention relates to a photo-Fenton catalyst, in particular to a confinement type pyrite slag / ferric oxychloride composite photo-Fenton catalyst and its preparation method and application. Background technique

[0002] With the rapid development of industrial and agricultural production and the continuous improvement of people's living standards, the types and quantities of organic matter involved in production and life are increasing day by day, resulting in a large amount of organic matter being discharged into natural water bodies, such as organic dyes, pesticides, organic solvents and Antibiotics etc. These organic substances consume dissolved oxygen in the water body, causing the COD of the water body to rise, leading to the death of aerobic microorganisms that can maintain the self-purification function of the water body and losing the self-purification function, thus making the water body black and smelly, deteriorating, and toxin accumulati...

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