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Graphene composite photocatalytic glass fiber electrode material and preparation method thereof

A graphene composite and photocatalytic material technology, which is applied in the field of graphene composite photocatalytic glass fiber electrode materials and its preparation, can solve the problems of low charge efficiency, unfavorable electrode material preparation, and increased production costs.

Active Publication Date: 2021-09-14
YUNNAN HUAPU QUANTUM MATERIAL CO LTD +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Capacitive deionization (CDI) is a new desalination technology in recent years. Due to its normal temperature and pressure operation, simple devices, low cost, and ion selectivity, etc. The potential advantages have attracted the attention of more and more researchers at home and abroad. However, the problems of insufficient cycle stability and low charge efficiency of ordinary CDI technology have always been major problems hindering the further development and commercialization of CDI.
At present, the vast majority of CDI electrode materials are prepared by compounding graphene-based materials, binders and conductive agents into slurry, and then coating. This production process is relatively complicated and is not conducive to irregular and large-area electrodes. The preparation of materials and production costs are also increased, making it difficult to apply commercial production

Method used

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  • Graphene composite photocatalytic glass fiber electrode material and preparation method thereof
  • Graphene composite photocatalytic glass fiber electrode material and preparation method thereof
  • Graphene composite photocatalytic glass fiber electrode material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040]Weigh 4 g of glucose and 2 g of nano-zinc oxide, dissolve them in 50 ml of deionized water, and ultrasonically disperse for 30 min. Take 40 parts of ultra-fine glass fiber cotton with a diameter of 3.0 μm and 10 parts of ultra-fine glass fiber cotton with a diameter of 1.0 μm, and break the glass fiber cotton at a speed of 6000 rpm for 3 minutes through a fiber dissociator. A pulp suspension with a mass concentration of 6 wt% was prepared. It is transported by the slurry conveyor to the forming paper machine for wet forming and then made into sheets. Put the flakes of ultra-fine glass fiber into 50 mL of 3 mol / L hydrochloric acid solution for 30 min, and at the same time dry it on a drying plate at 100 °C for 5 min. Then pickling and drying the glass fiber. The above-prepared filter paper was placed in a microwave fast reactor at 100 °C for 6 min. The glass fiber CDI electrode material of the graphene composite photocatalytic material synthesized in situ was soaked in...

Embodiment 2

[0042] Weigh 6 g of glucose and 2 g of nano-zinc oxide, dissolve them in 50 ml of deionized water, and ultrasonically disperse for 30 min. Take 40 parts of ultrafine glass fiber cotton with a diameter of 3.5 μm and 10 parts of ultrafine glass fiber cotton with a diameter of 1.5 μm, and break the glass fiber cotton at a speed of 7000 rpm for 4 minutes through a fiber dissociator. A pulp suspension with a mass concentration of 7 wt% was prepared. It is transported by the slurry conveyor to the forming paper machine for wet forming and then made into sheets. Put the flakes of ultra-fine glass fiber into 50 mL of 4.5 mol / L hydrochloric acid solution for 45 min, and dry it on a drying plate at 100 °C for 5 min at the same time, and then pickle the dried glass fiber. The filter paper prepared above was placed in a microwave fast reactor at 150 °C for 8 min. The glass fiber electrode material of in-situ synthesized graphene composite photocatalytic particle material was soaked in t...

Embodiment 3

[0044] Weigh 8 g of glucose and 3 g of nano-titanium oxide, dissolve them in 50 ml of deionized water, and ultrasonically disperse for 30 min. Take 40 parts of ultra-fine glass fiber cotton with a diameter of 3.5 μm and 10 parts of ultra-fine glass fiber cotton with a diameter of 1.5 μm, and break the glass fiber cotton through a fiber dissociator at a speed of 8000 rpm for 4 minutes. A pulp suspension with a mass concentration of 9 wt% was prepared. It is transported by the slurry conveyor to the forming paper machine for wet forming and then made into sheets. Put the flakes of ultra-fine glass fiber into 50 mL of 6 mol / L hydrochloric acid solution for 60 min, and dry it on a drying plate at 100 °C for 6 min at the same time, put the filter paper prepared above into a microwave fast reactor at 200 °C, React for 12 min. The in-situ synthesized graphene composite photocatalytic material glass fiber electrode material was soaked in the binder system mixed with polyurethane mod...

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Abstract

The invention discloses a graphene composite photocatalytic glass fiber electrode material and a preparation method thereof. The graphene composite photocatalytic glass fiber electrode material comprises 3-7 wt% of a graphene nano material, 4-8 wt% of photocatalytic particles, 3-9 wt% of a bonding system and superfine glass fiber cotton. The preparation method of the graphene composite photocatalytic glass fiber electrode material comprises the following steps: firstly, suspending enough hydroxyl groups on the fiber surface through a wet papermaking process and acid pickling modification, opening silicon-oxygen bonds at the same time, then introducing a composite structure of graphene and nano photocatalytic particles through in-situ growth chemical bonding, and performing subsequent treatment on the prepared glass fiber filter membrane to prepare the graphene composite photocatalytic particle glass fiber capacitive deionization electrode material with efficient deionization desalination under a low-voltage condition. The material prepared by the invention has the function of removing harmful ions in water resources with low energy consumption, and has wide application prospects in seawater desalination and water treatment and purification in water-deficient areas.

Description

technical field [0001] The invention belongs to the technical field of composite functional materials, and in particular relates to a graphene composite photocatalytic glass fiber electrode material and a preparation method thereof. Background technique [0002] Capacitive deionization (CDI) is an emerging desalination technology in recent years. Due to its potential advantages such as normal temperature and pressure operation, simple device, low cost, and ion selectivity, it has attracted the attention of more and more researchers at home and abroad. However, the problems of insufficient cycle stability and low charge efficiency of ordinary CDI technology have always been major problems hindering the further development and commercialization of CDI. In recent years, graphene has been used as an electrode material for CDI and has attracted widespread attention. Graphene has high electrical conductivity, which can reduce the need for conductive additives, and its two-dimensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/469C03C13/00
CPCC02F1/46109C02F1/4691C03C13/00C02F2001/46142C02F2001/46152C02F2305/10C02F2305/08C02F2001/46138C02F2103/08H01M4/0404H01M4/364H01M4/366H01M4/48H01M4/583H01M4/622H01M4/806H01M2004/021
Inventor 曾和平翟福强胡梦云李璐罗永以
Owner YUNNAN HUAPU QUANTUM MATERIAL CO LTD