Ozone heterogeneous oxidation solid catalyst preparation method

Abstract

The invention belongs to the technical field of environment protection and chemical catalysts and relates to an ozone heterogeneous oxidation solid catalyst preparation method. The preparation method includes: taking porous mineral materials including gamma-aluminum oxide, barite, fluorite, glauberite, hydrotalcite and alunite as carriers; subjecting the carriers to lithium hypochlorite and bis(acetylacetone)beryllium broaching modification; adding surfactant dioctadecyldimethyl ammonium chloride for surface activation under the action of ultrasonic waves; subjecting the carriers to hydrothermal reaction, with a complex mineralizer composed of borax and potassium sulfate, catalytic activity auxiliary agent precursors including tetra(2,2,6,6-tetramethyl-3,5-hydrochelidonic acid)cerium (IV), terbium acetate hydrate and tri(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octenyldiketone)dysprosium (III) and catalytic activity central precursors including lysine manganese, L-aspartic acid molybdenum, tetraammine dichloropalladium and cis-dichlorodiamineplatinum, in a hydrothermal reactor under the action of tri(cetyl)methyl ammonium bromide serving as an emulsifying agent; drying to remove moisture, and firing in a muffle furnace at a certain temperature to obtain an 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...