Ozone catalytic oxidation catalyst and preparation method thereof

Abstract

The invention discloses an ozone catalytic oxidation catalyst and a preparation method thereof, the catalyst comprises an active component, an auxiliary agent and a carrier; the active component is one or more of Mn, Ni, Fe, V, Cu and Co, the auxiliary agent is one or more of Ti, Zn and Ce, and the carrier is petroleum coke-based activated carbon. The preparation method comprises the following steps: (1) pretreating petroleum coke; (2) uniformly mixing the obtained petroleum coke, an auxiliary component-containing compound and an activating agent, and activating; (3) washing and drying a sample obtained after activation, mixing the sample with an active metal-containing compound and an activating agent, and activating after uniform mixing; and (4) washing the obtained sample, treating thewashed sample with a hydrogen peroxide solution, and drying to obtain the catalyst. The active components of the catalyst prepared by the method are highly dispersed in the carrier, and the activity and stability of the catalyst are greatly improved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a catalytic material and a preparation method thereof, in particular to a metal-loaded activated carbon catalyst for treating waste water and a preparation method thereof. Background technique [0002] Phenol-containing wastewater is widely sourced from petrochemical, synthetic fiber, pharmaceutical and other industries. It is a type of organic wastewater with high toxicity and is difficult to biodegrade. The traditional biochemical method has the disadvantages of long treatment time and low treatment efficiency, which is difficult to meet the production needs of enterprises. . Among the treatment methods of phenol-containing wastewater, a large number of treatment methods such as adsorption and catalytic oxidation have been reported. With the increasingly stringent global environmental protection regulations, the control indicators for sewage discharge standards are getting highe...

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Problems solved by technology

[0011] Aiming at the deficiencies in the prior art, the present invention provides an ozone catalytic oxidation catalyst and its preparation method. The catalyst preparation method is to introduce active metal components and additives in the petroleum coke activation process, and use the activator to enter the petroleum coke. The diffusion path generated by the coke phase, and under the action of microwave catalysis, combines with amorphous carbon defects or graphitic carbon sheets to form a highly dispersed and stable structure, which solves the problem of active groups in the catalyst process with activated carbon as the carrier. Low sub-loading capacity, poor uniform dispersion, easy loss of active metals and other problems, the active components of the catalyst prepared by the method of the present invention are highly dispersed in the carrier, and the activity and stability of the catalyst are greatly improved

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