A kind of preparation method of graphene oxide composite filter element material and water purification filter element

A graphene composite and composite material technology, which is applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problems of RO membrane being easily scratched, RO membrane of water purification filter element being easily scaled, and affecting water output, etc. Achieve superior adsorption effect, excellent adsorption effect, and the effect of increasing wet strength

Active Publication Date: 2021-10-15
山东利特纳米技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of a graphene oxide composite filter element material and a water purification filter element in view of the deficiencies in the prior art, so as to solve the problem that the RO membrane of the water purification filter element is easily scaled and affects the water output, and the RO membrane is easily scratched. Broken problem, prolong the service life of RO membrane filter, and also has self-cleaning function

Method used

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  • A kind of preparation method of graphene oxide composite filter element material and water purification filter element
  • A kind of preparation method of graphene oxide composite filter element material and water purification filter element
  • A kind of preparation method of graphene oxide composite filter element material and water purification filter element

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Embodiment 1

[0030] The preparation method of a kind of graphene oxide composite filter element material of the present embodiment comprises the following steps:

[0031] a) Preparation of zeolite-Ag particles: Pass zeolite powder through a 100-mesh sieve to remove large particles. After sieving, the powder is added to a silver nitrate solution with a concentration of 0.1mol / L, stirred for 2 hours, and the mixture is filtered to obtain a solid. After drying, sinter at 500°C for 0.5h to obtain Ag-loaded zeolite particles;

[0032] b) Preparation of graphene oxide-coated zeolite-Ag particles: add the zeolite-Ag particles prepared in step a) to 0.1 mg / ml graphene oxide dispersion, stir while ultrasonic, and spray-dry the mixture , to obtain graphene oxide-coated zeolite-Ag particles;

[0033] The mass ratio of the zeolite-Ag particles to graphene oxide is 10:1;

[0034] c) Paste preparation: fully mix the polypropylene powder with the graphene oxide-coated zeolite-Ag particle powder obtaine...

Embodiment 2

[0038] The preparation method of a kind of graphene oxide composite filter element material of the present embodiment comprises the following steps:

[0039] a) Preparation of zeolite-Ag particles: Pass zeolite powder through a 100-mesh sieve to remove large particles. After sieving, the powder is added to a silver nitrate solution with a concentration of 2.5mol / L, stirred for 12 hours, and the mixture is filtered to obtain a solid. After drying, sinter at 300°C for 2 hours to obtain Ag-loaded zeolite particles;

[0040]b) Preparation of graphene oxide-coated zeolite-Ag particles: add the zeolite-Ag particles prepared in step a) to a 5 mg / ml graphene oxide dispersion, stir while ultrasonicating, and spray-dry the mixture. Obtaining graphene oxide-coated zeolite-Ag particles;

[0041] The mass ratio of the zeolite-Ag particles to graphene oxide is 1:1;

[0042] c) Paste preparation: fully mix the polypropylene powder with the graphene oxide-coated zeolite-Ag particle powder o...

Embodiment 3

[0046] The preparation method of a kind of graphene oxide composite filter element material of the present embodiment comprises the following steps:

[0047] a) Preparation of zeolite-Ag particles: Pass the zeolite powder through a 100-mesh sieve to remove large particles, add the zeolite powder into a silver nitrate solution with a concentration of 5mol / L, stir for 24 hours, filter the mixed solution to obtain a solid, and dry the solid After drying, sinter at 150°C for 3 hours to obtain Ag-loaded zeolite particles;

[0048] b) Preparation of graphene oxide-coated zeolite-Ag particles: add the zeolite-Ag particles prepared in step a) to a 10 mg / ml graphene oxide dispersion, stir while ultrasonicating, and spray-dry the mixture. Obtaining graphene oxide-coated zeolite-Ag particles;

[0049] The mass ratio of the zeolite-Ag particles to graphene oxide is 1:10;

[0050] c) Paste preparation: fully mix the polypropylene powder with the graphene oxide-coated zeolite-Ag particle ...

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Abstract

The invention discloses a preparation method of a graphene oxide composite filter material, which belongs to the technical field of water purification treatment, and is characterized in that it comprises the preparation of a zeolite-Ag composite material, the preparation of a graphene oxide-coated zeolite-Ag particle, and the preparation of a paste Forming and other steps; aim to solve the problems that the RO membrane of the water purification filter is easy to scale and affect the water output, and the RO membrane is easy to be scratched, prolong the service life of the RO membrane filter, and also has a self-cleaning function.

Description

technical field [0001] The invention relates to the technical field of water purification treatment, in particular to a preparation method of a graphene oxide composite filter element capable of absorbing calcium ions and a water purification filter element. Background technique [0002] At present, natural water bodies and drinking water sources in most regions of my country are polluted to varying degrees. Toxic and harmful substances in the water continue to accumulate, and microorganisms and algae in the water reproduce excessively, threatening the safety of drinking water for residents. Therefore, water purifiers are widely used in modern families. The use of is also becoming more and more popular. Most of the current water purifiers use multi-stage filter elements such as PP cotton filter elements, activated carbon filter elements, and RO membrane filter elements to filter step by step to meet drinking water standards. Among them, RO membrane filter elements are used to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01D39/06C02F1/28C02F101/10C02F101/20
CPCB01D39/06B01D2239/0442B01J20/02B01J20/165B01J20/205B01J20/3042C02F1/281C02F1/288C02F2101/10C02F2101/20
Inventor 宋肖肖孔苗苗苏阳刘同浩褚文钰路广禹益善
Owner 山东利特纳米技术有限公司
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