Electrocatalytic particle electrode material for treating high-concentration organic wastewater and preparation process thereof

Abstract

The invention discloses an electrocatalytic particle electrode material for treating high-concentration organic wastewater and a preparation process thereof. The process comprises the steps of adding AgNO3 into isopropanol so as to obtain a solution A, adding treated Al2O3 into the solution A, filtering to obtain particles B and a microemulsion X, and washing by using ethanol so as to obtain particles D; adding the particles D into the X, and filtering to obtain particles F; preparing solutions B1, B2, B3, B4, B5, C, D, E and F from Ce(NO3) 2, MnCl2 and SnCl4; treating the particles F by sequentially using the solutions B1, B2, B3, B4 and B5, so as to obtain particles I; adding the particles I into the solution C, filtering, then, washing by using ethanol, and drying, so as to obtain particles K; adding the particles K into the solution D, filtering, then, washing by using ethanol, and drying, so as to obtain particles M; adding the particles M into the solution E, filtering, then, washing by using ethanol, and drying, so as to obtain particles O; adding the particles O into the solution F, filtering, then, washing by using ethanol, drying, and roasting for 4 hours at the temperature of 500 DEG C, thereby obtaining the electrocatalytic particle electrode material for treating the high-concentration organic wastewater.

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 an electrocatalytic particle electrode material and a preparation process for treating high-concentration organic wastewater. 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, p...

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.