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Preparation method of polycrystalline hybrid metal catalytic electrode membrane

A metal catalysis, electrode membrane technology, applied in chemical instruments and methods, anaerobic digestion treatment, water/sludge/sewage treatment, etc., to promote active growth, improve effluent quality, and improve removal efficiency.

Active Publication Date: 2021-04-20
合肥净龙环保科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The use of microporous membranes to remove heavy metal ions in wastewater has always faced technical challenges

Method used

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  • Preparation method of polycrystalline hybrid metal catalytic electrode membrane
  • Preparation method of polycrystalline hybrid metal catalytic electrode membrane

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Embodiment Construction

[0040] The principles and features of the present invention are described below in conjunction with examples, which are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0041] 1. Preparation of polycrystalline hybrid metal catalytic electrode film, the steps are as follows:

[0042] (1) Preparation of DAOGO (Dual Acid Exfoliated Graphene Oxide) by Strong Oxidation of Double Acid: In 200mL H 2 SO 4 and H 3 PO 4 mixed solution (H2 SO 4 solution with H 3 PO 4 The volume ratio of the solution is 9:1) adding 12.0g K 2 MnO 4 and 2.0g graphite powder, H 2 SO 4 Solution concentration is 98.6wt%, H 3 PO 4 The solution concentration was 85.5wt%; vigorously stirred at 50°C for 12h, and cooled to room temperature naturally; poured 300mL ice deionized water and 2mL 30% H 2 o 2 ; Use 150mL deionized water, 150mL 30% HCl, and 150mL ethanol to wash by centrifugation in turn; after repeated washing, the remaining materi...

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Abstract

The invention discloses a preparation method of a polycrystalline hybrid metal catalytic electrode membrane, and the method comprises the following steps: carrying out hybrid loading on a metal organic framework and iron-manganese composite nanoparticles through graphene oxide to synthesize a polycrystalline catalyst, taking polyvinylidene fluoride as an electrode membrane support layer and a filter layer, and taking a conductive material as a substrate for phase inversion preparation, wherein the graphene oxide, the metal organic framework and the iron-manganese composite nanoparticles are all prepared in situ by adopting chemistry. The obtained polycrystalline hybrid metal catalytic electrode membrane can be coupled with a bioelectrochemical system to form a new M-BES system for electroreduction removal of heavy metal ions in sewage; meanwhile, active growth of electrogenesis microorganisms can be promoted, the removal efficiency of organic pollution is improved, and the anti-pollution capacity of the membrane is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage purification and waste water resource utilization, and in particular relates to a preparation method of a polycrystalline hybrid metal catalytic electrode film. Background technique [0002] Microporous membranes can remove molecular-level organic pollutants in water. Microporous membranes are widely used due to their high organic removal rates. The use of microporous membranes to remove heavy metal ions in wastewater has always faced technical challenges. Metal ions in water are difficult to separate technically through microporous membranes because their ionic radii are much smaller than their molecular radii. [0003] The bioelectrochemical system (Bioelectrochemical system, BES) can use the anode electricity-producing microorganisms to convert the organic matter in the wastewater into bioelectric energy, which is transmitted to the cathode electrode through an external circuit, and promotes t...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/467C02F3/00C02F3/28C02F101/30C02F101/20
CPCY02E60/50
Inventor 高常飞王涵文
Owner 合肥净龙环保科技有限公司
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