Particle electrode for efficiently removing various organic compounds and preparation method thereof

Abstract

The invention discloses a particle electrode for efficiently removing various organic compounds and a preparation method thereof. The preparation method comprises the following steps of adding AgNO3 to isopropanol to obtain a solution A, adding treated Al2O3 to the solution A, filtering the solution to obtain a particle B and micro-emulsion X, and obtaining a particle D after washing the particle B with ethanol; adding the particle D to X to obtain a particle F after filtration; utilizing Ce(NO3)2, NiCl2, CuCl2, isopropanol and concentrated hydrochloric acid to prepare solutions B, C, D, E and F; adding the particle F to the solution B to obtain a particle I through filtration; adding the particle I to the solution C to obtain a particle J through filtration, washing the particle J with ethanol, and drying the particle J, thus obtaining a particle K; adding the particle K to the solution D to obtain a particle L through filtration, washing the particle L with ethanol, and drying the particle L, thus obtaining a particle M; adding M to E to obtain a particle N through filtration, washing the particle N with ethanol, and drying the particle N, thus obtaining a particle O; adding the particle O to the solution F to obtain a particle P through filtration, washing the particle P with ethanol, and drying and roasting the particle P for four hours, thus obtaining the needed particle electrode.

Description

technical field [0001] The invention belongs to the technical field of chemically modified electrodes for treating wastewater by electrocatalytic oxidation, and in particular relates to a particle electrode for efficiently removing various organic compounds and a preparation method thereof. Background technique [0002] Electrocatalytic oxidation technology degrades organic pollutants in wastewater by generating strong oxidizing active groups such as hydroxyl radicals. It has no secondary pollution, low cost, strong applicability, and high efficiency in treating high-concentration, biodegradable wastewater. Advanced features, in which three-dimensional electrocatalytic oxidation technology, by adding a catalytically active particle electrode between the anode and cathode of the two-dimensional electrode, the surface of the filled granular electrode is charged in a certain way, and the effective area of ​​the two-dimensional electrode is improved. Small, poor mass transfer ef...

AI Technical Summary

Problems solved by technology

The large resistance and low conductivity of traditional electrodes make it low current efficiency, insufficient stability, short life, high electrode material cost in wastewater treatment, and the electrode preparation process is complicated, which limits the development of particle electrode materials. Therefore, the new The research on particle electrode materials still needs to be further strengthened

In recent years, the preparation of supported particle electrodes by impregnation-thermal decomposition has attracted more and more attention from scholars, but there are disadvantages such as poor reusability and low electrode efficiency, and there is still a lack of research on the preparation process of particle electrodes.