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Production method of ceramic microfiltration membrane electrode with Ti4O7 coating

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: 2019-09-24
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Abstract
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  • Claims
  • Application Information

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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

Method used

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  • Production method of ceramic microfiltration membrane electrode with Ti4O7 coating
  • Production method of ceramic microfiltration membrane electrode with Ti4O7 coating
  • Production method of ceramic microfiltration membrane electrode with Ti4O7 coating

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Embodiment Construction

[0031] The present invention will be further detailed below in conjunction with the embodiments:

[0032] Ti 4 O 7 The preparation method of the coated ceramic microfiltration membrane electrode includes the following steps:

[0033] ⑴Ti 4 O 7 Preparation of precursor sol:

[0034] Put 10g PVA in a beaker, pour deionized water to 100ml, then place the beaker on a 105℃ hot plate (IKA, RT-10) to dissolve the PVA, add deionized water to supplement the deionization during the dissolution process Evaporation loss of water; add 20gTiO after cooling 2 , 2gPAA, 1.5g glycerol and 1.2g PVP and stir, finally dilute the volume to 100ml with deionized water; use a stirrer (IKA, RW-20) to mechanically stir the sol at 900rpm to strengthen the TiO 2 Dispersibility in the sol, Ti can be obtained after stirring 4 O 7 Precursor sol

[0035] ⑵Ti 4 O 7 Preparation of ceramic microfiltration membrane coated with precursor gel:

[0036] Use PTL-OV5P to pull the coating machine for Ti 4 O 7 Precursor gel-coat...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/467C02F1/461
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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