Production method of ceramic microfiltration membrane electrode with Ti4O7 coating

Abstract

The invention relates to a production method of a ceramic microfiltration membrane electrode with a Ti4O7 coating. The production method of the ceramic microfiltration membrane electrode with the Ti4O7 coating comprises the steps of (1) producing a polyvinyl alcohol solution, adding titanium dioxide, polyacrylic acid, glycerin and polyvinylpyrrolidone, and conducting mechanical stirring to form Ti4O7 precursor sol; (2) immersing a flat ceramic microfiltration membrane into the Ti4O7 precursor sol obtained in the step (1), coating the surface of the flat ceramic microfiltration membrane with a Ti4O7 precursor sol membrane through dip-coating, and placing the flat ceramic microfiltration membrane coated with the Ti4O7 precursor sol membrane in air for drying to form a ceramic microfiltration membrane electrode coated with Ti4O7 precursor gel; (3) placing the ceramic microfiltration membrane electrode, which is obtained in the step (2), coated with the Ti4O7 precursor gel in a muffle furnace for annealing, and conducting cooling to form a ceramic microfiltration membrane electrode with a Ti4O7 precursor coating; and (4) conducting annealing reduction on the ceramic microfiltration membrane electrode, which is synthesized in the step (3), with the Ti4O7 precursor coating in a hydrogen atmosphere to finally form the ceramic microfiltration membrane electrode with the Ti4O7 coating.

Description

Technical field [0001] The invention relates to the field of electrocatalytic advanced oxidation, in particular to an oxidatively degraded Ti that is difficult to degrade organic wastewater. 4 O 7 Preparation method of coated ceramic microfiltration membrane electrode. Background technique [0002] With the rapid development of my country's industry and the continuous expansion of urban population, a large amount of refractory organic wastewater is produced in the process of economic production and daily life. Refractory organic wastewater usually has the characteristics of low biodegradability, complex water quality, and high toxicity, which cannot be completely cured by traditional treatment methods. In recent years, the annual output of refractory organic wastewater in large and medium-sized cities has been increasing year by year, and its solution is a problem that plagues local governments. Advanced oxidation technology has the advantages of fast reaction speed, relatively ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the shortcomings of high electrode cost and poor effect in today's electrocatalytic oxidation process and provide a 4 o 7 The annealing temperature and annealing time of the coated ceramic microfiltration membrane electrode in the annealing reduction process, so as to produce pure phase Ti 4 o 7 Coated Ceramic Microfiltration Membrane Electrode

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