Preparation method of ozone heterogeneous oxidation solid catalyst

Abstract

The invention relates to a preparation method of an ozone heterogeneous oxidation solid catalyst, and belongs to the technical fields of environment protection and catalysts for chemical industry. The preparation method comprises the following steps of using diatomite, kyanite, talcum, trona, pulverized fuel ash and coal gangue as carriers, expanding pores of the carriers by lithium hypochlorite and bis(acetylacetone)beryllium, and adding a surfactant (monoalkyl ether trimethyl ammonium chloride) for activating treatment under the action of ultrasonic wave; then, performing hydrothermal reaction on the carriers, composite mineralizing agents (borax and potassium sulfate), catalytic activity additive precursors (yttrium tri(hexafluoroacetylacetone) (III) dihydrate, tri(cyclopentadienyl) promethium, tris(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono)europium (III), and thulium(III) trifluoromethanesulfonate), and catalytic activity center precursors (pyruvic acid isonicotinyl hydrazone vanadium, cobalt gluconate, catechol ethylenediamine tungsten complex and gold potassium chloride) in a hydrothermal reaction kettle under the action of an emulsifier (oleamide propyl trimethyl methylsulfate ammonia), drying to remove water, and firing in a muffle furnace, so as to obtain the ozone heterogeneous oxidation solid catalyst.

Description

technical field

[0001] The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. Background technique

[0002] Ozone oxidation technology utilizes the strong oxidation ability of ozone, which can oxidize and decompose many organic pollutants, and is widely used in wastewater treatment. Ozone catalytic oxidation technology is divided into ozone homogeneous catalytic oxidation and ozone heterogeneous catalytic oxidation. Ozone homogeneous catalytic oxidation has catalysts that are difficult to separate, recycle and reuse, and the low utilization rate of ozone leads to high water treatment operation costs. Ozone heterogeneous catalytic oxidation technology has the advantages of easy separation and recovery of catalysts and reusable use, high ozone utilization rate, and high removal rate of organic pollutants, which reduces water treatment. The ad...