ti 4 o 7 Preparation method of coated ceramic microfiltration membrane electrode

A ceramic microfiltration and membrane electrode technology, which is applied in chemical instruments and methods, water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problems of high electrode cost and poor effect, and achieve The effect of long service life, simple production method and wide potential window

Active Publication Date: 2022-05-13
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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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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  • ti <sub>4</sub> o <sub>7</sub> Preparation method of coated ceramic microfiltration membrane electrode
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  • ti <sub>4</sub> o <sub>7</sub> Preparation method of coated ceramic microfiltration membrane electrode

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with embodiment:

[0032] Ti 4 o 7 The preparation method of the ceramic microfiltration membrane electrode of coating, comprises the following steps:

[0033] (1) Ti 4 o 7 Preparation of precursor sol:

[0034] Put 10g of PVA in a beaker, pour deionized water to 100ml, and then place the beaker on a heating plate (IKA, RT-10) at 105°C to dissolve the PVA. During the dissolution process, add an appropriate amount of deionized water to supplement deionization Evaporation loss of water; add 20g TiO accordingly after cooling 2 , 2gPAA, 1.5g glycerol and 1.2gPVP and stirred, finally dilute to 100ml with deionized water; mechanically stir the sol with a stirrer (IKA, RW-20) at 900rpm to enhance TiO 2 Dispersibility in the sol, Ti can be obtained after stirring 4 o 7 Precursor sol;

[0035] (2) Ti 4 o 7 Preparation of precursor gel-coated ceramic microfiltration membranes:

[0036] Ti ...

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Abstract

The present invention relates to Ti 4 o 7 The preparation method of the coated ceramic microfiltration membrane electrode includes: (1) configure polyvinyl alcohol solution, add titanium dioxide, polyacrylic acid, glycerin and polyvinylpyrrolidone, and form Ti 4 o 7 Precursor sol; (2) Immerse the flat ceramic microfiltration membrane into the Ti obtained from step (1) 4 o 7 In the precursor sol, the surface of the flat ceramic microfiltration membrane was coated with Ti 4 o 7 Precursor sol film, dried in air to form Ti 4 o 7 Precursor gel-coated ceramic microfiltration membrane electrode; (3) step (2) to obtain Ti 4 o 7 Precursor gel-coated ceramic microfiltration membrane electrodes were annealed in a muffle furnace, and Ti 4 o 7 The ceramic microfiltration membrane electrode of precursor coating; (4) the Ti synthesized by step (3) 4 o 7 The precursor-coated ceramic microfiltration membrane electrode is annealed and reduced in an atmosphere of hydrogen to form Ti 4 o 7 Coated ceramic microfiltration membrane electrodes.

Description

technical field [0001] The invention relates to the field of electrocatalytic advanced oxidation, in particular to Ti 4 o 7 Preparation of Coated Ceramic Microfiltration Membrane Electrodes. 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 difficult problem that plagues local governments. Advanced oxidation technology has the advantages of fast reaction speed, relatively simple process, and good treatment effect, and has a good pros...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/467C02F1/461C02F101/30
CPCC02F1/46109C02F1/4672C02F2001/46142C02F2001/46152C02F2101/308
Inventor 张云澍王丹丹
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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