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Carbon fiber loaded titanium dioxide photocatalytic material and preparation method and application thereof

A photocatalytic material, titanium dioxide technology, applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. Influence and other problems, to achieve the effect of good water treatment effect, not easy to drop powder, and low equipment requirements

Active Publication Date: 2021-07-13
TIANJIN ENVIRONMENTAL PROTECTION TECHNICAL DEV CENT DESIGNING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, enterprises often use wire mesh sprayed with metal coating as filter material. The wire mesh sprayed with metal coating can only treat the air. Since some substances in the metal coating may dissolve in water, it will affect the water quality. Therefore, Metal-coated barbed wire does not treat water
[0003] On the other hand, the mechanical properties of the coating of barbed wire sprayed with metal coating are poor, such as the commonly used fiber titanium plate, which has poor adsorption performance, so a new type of material is urgently needed to treat water

Method used

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  • Carbon fiber loaded titanium dioxide photocatalytic material and preparation method and application thereof
  • Carbon fiber loaded titanium dioxide photocatalytic material and preparation method and application thereof
  • Carbon fiber loaded titanium dioxide photocatalytic material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Example 1 Inhomogeneous doping of Pr-TiO 2 preparation of

[0037] A preparation method of carbon fiber supported titanium dioxide photocatalytic material, comprising the steps of:

[0038] (1) Mix tetrabutyl titanate and absolute ethanol at a ratio of 1:10 to obtain solution A, mix 3:1 absolute ethanol and water, and add excess Pr(NO 3 ) 3 •6H 2 O(Pr(NO 3 ) 3 •6H 2 The amount of O added is 5% of tetrabutyl titanate), then add glacial acetic acid to adjust the pH value of the solution to 3-4, mix to obtain solution B, and add solution A dropwise to solution B under the condition of ultrasonic magnetic stirring , after the dropwise addition was completed, the magnetic stirring was continued for 0.5h, and the doped TiO 2 sol, will be doped with TiO 2The doped TiO was prepared by sol drying, grinding and burning 2 powder;

[0039] (2) Put the carbon fiber into concentrated nitric acid and treat it in an oil bath at 115°C for 3 hours, then take out the carbon fibe...

Embodiment 2

[0044] Example 2 Two kinds of rare earth doped TiO 2 preparation of

[0045] A preparation method of carbon fiber supported titanium dioxide photocatalytic material, comprising the steps of:

[0046] (1) Mix tetrabutyl titanate and absolute ethanol at a ratio of 1:10 to obtain solution A, mix 3:1 absolute ethanol and water, and add excess Pr(NO 3 ) 3 •6H 2 O(Pr(NO 3 ) 3 •6H 2 The amount of O added is 5% of tetrabutyl titanate), then add glacial acetic acid to adjust the pH value of the solution to 3-4, mix to obtain solution B, and add solution A dropwise to solution B under the condition of ultrasonic magnetic stirring , after the dropwise addition was completed, the magnetic stirring was continued for 0.5h, and the doped TiO 2 sol, will be doped with TiO 2 The doped TiO was prepared by sol drying, grinding and burning 2 powder;

[0047] (2) Put the carbon fiber into concentrated nitric acid and treat it in an oil bath at 115°C for 3 hours, then take out the carbon ...

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Abstract

The invention provides a carbon fiber loaded titanium dioxide photocatalytic material and a preparation method and application thereof. The preparation method comprises the following steps of (1), mixing an ester titanium source and absolute ethyl alcohol to obtain a solution A, mixing absolute ethyl alcohol, glacial acetic acid, water and an excessive rare earth element solution to obtain a solution B, dropwise adding the solution A into the solution B under the stirring condition, continuously stirring afterdropwise adding, acquiring doped TiO2 sol, drying, grinding and burning the doped TiO2 sol to obtain doped TiO2 powder, and (2) putting the fiber carbon into concentrated nitric acid, carrying out oil bath treatment, then taking out the carbon fiber, cooling, cleaning and drying the carbon fiber for later use. According to the preparation method of the carbon fiber loaded titanium dioxide photocatalytic material, TiO2 is subjected to necessary doping modification and is loaded on a proper carrier, so that the carbon fiber loaded titanium dioxide photocatalytic material can be widely applied to an actual organic wastewater treatment process.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a carbon fiber-supported titanium dioxide photocatalytic material and a preparation method and application thereof. Background technique [0002] At present, enterprises often use wire mesh sprayed with metal coating as filter material. The wire mesh sprayed with metal coating can only treat the air. Since some substances in the metal coating may dissolve in water, it will affect the water quality. Therefore, Metal-coated barbed wire cannot treat water. [0003] On the other hand, the coating mechanical properties of barbed wire sprayed with metal coating are poor, such as the commonly used fiber titanium plate, which has poor adsorption performance, so a new type of material is urgently needed to treat water. Contents of the invention [0004] In view of this, the present invention aims to overcome the defects in the prior art, and proposes a carbon fiber-supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B01J35/06B01J37/03B01J37/08C02F1/32C02F101/38
CPCB01J23/10B01J23/002B01J37/038B01J37/082C02F1/32C02F2305/10C02F2101/38C02F2101/40B01J2523/00B01J35/58B01J35/39B01J2523/3706B01J2523/3718B01J2523/47
Inventor 孙贻超苏志龙冯辉贾晓晨张军港赵明新卢瑞杰
Owner TIANJIN ENVIRONMENTAL PROTECTION TECHNICAL DEV CENT DESIGNING INST