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VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and preparation method and application thereof

A synergistic catalysis and self-excitation technology, applied in the field of environmental catalysis and VOCs treatment, can solve the problems of VOCs that have not been reported, and achieve the effects of shortening ozone oxidation time, good removal effect and large specific surface area.

Inactive Publication Date: 2019-02-22
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ozone and ultraviolet light pass through Mn-Zr-TiO 2 Catalyst treatment of VOCs has not been reported

Method used

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  • VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and preparation method and application thereof
  • VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of ultraviolet light self-excitation ozone synergistic catalytic oxidation VOCs catalyst, its preparation method is as follows:

[0025] (1) Take 80-120g / m 2 Alkali-free and wax-free glass fiber, boiled with 10% nitric acid solution by volume for 1-2 hours, then washed with deionized water until neutral drying, and set aside;

[0026] (2) Using tetrabutyl titanate as a precursor, mix it with absolute ethanol to obtain solution A, wherein the molar ratio of tetrabutyl titanate to absolute ethanol is 1:50, and set aside;

[0027] (3) Take a certain amount of deionized water, ZrOCl 2 ·8H 2 O and CH 3 COOH dissolved in CH 3 CH 2 In OH, stir to obtain solution B, wherein zirconium oxychloride: glacial acetic acid: deionized water: absolute ethanol molar ratio is 1:10:31:49, standby;

[0028] (4) Stir the solution A evenly and then stir it with the solution B in a volume ratio of 34:31 to obtain a light yellow precursor C, which is set aside;

[0029] (5) Dip-dr...

Embodiment 2

[0034] A kind of ultraviolet light self-excitation ozone synergistic catalytic oxidation VOCs catalyst, its preparation method is as follows:

[0035] (1) Take 80-120g / m 2 Alkali-free and wax-free glass fiber, boiled with 10% nitric acid solution by volume for 1-2 hours, then washed with deionized water until neutral drying, and set aside;

[0036] (2) Using analytically pure tetrabutyl titanate as a precursor, mix it with absolute ethanol to obtain solution A, wherein the molar ratio of tetrabutyl titanate to absolute ethanol is 1.1:50, and set aside;

[0037] (3) Take a certain amount of deionized water, ZrOCl 2 ·8H 2 O and CH 3 COOH dissolved in CH 3 CH 2 In OH, stir to obtain solution B, wherein zirconium oxychloride: glacial acetic acid: deionized water: absolute ethanol molar ratio is 1:20:31:49, standby;

[0038] (4) Stir the solution A evenly and then stir it with the solution B in a volume ratio of 34:31 to obtain a light yellow precursor C, which is set aside; ...

Embodiment 3

[0044] A kind of ultraviolet light self-excitation ozone synergistic catalytic oxidation VOCs catalyst, its preparation method is as follows:

[0045] (1) Take 80-120g / m 2 Alkali-free and wax-free glass fiber, boiled with 10% nitric acid solution by volume for 1-2 hours, then washed with deionized water until neutral drying, and set aside;

[0046] (2) Using analytically pure tetrabutyl titanate as a precursor, mix it with absolute ethanol to obtain solution A, wherein the molar ratio of tetrabutyl titanate to absolute ethanol is 1:50, and set aside;

[0047] (3) Take a certain amount of deionized water, ZrOCl 2 ·8H 2 O and CH 3 COOH dissolved in CH 3 CH 2 In OH, stir to obtain solution B, wherein zirconium oxychloride: glacial acetic acid: deionized water: the mol ratio of absolute ethanol is 1:15:31:49, standby;

[0048] (4) Stir the solution A evenly and then stir it with the solution B in a volume ratio of 34:31 to obtain a light yellow precursor C, which is set asid...

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Abstract

The invention relates to a VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and a preparation method and application thereof. Alkali-free wax-free glass fiberis taken and cooked with a nitric acid solution, then is washed with ionized water to be neutral, and is dried; tetrabutyl titanate is used as a precursor and is mixed with anhydrous ethanol to obtaina solution A; deionized water, zirconium oxychloride and acetic acid are dissolved in ethanol, and a solution B is obtained by stirring; the solution A is evenly stirred and then the solution B is added to get a light yellow precursor C; the glass fiber is soaked in the light yellow precursor C, drying is performed after impregnation, ageing is performed at room temperature, vacuum drying is executed in a vaccum drying oven, roasting is carried out in a muffle furnace, and natural cooling is executed to room temperature to obtain Zr-Ti supported glass fiber; a solution D is obtained by mixingthe manganese nitrate, ethanol, acetic acid and deionized water; the Zr-Ti supported glass fiber is impregnated in solution D, aged, dried and roasted to obtain the VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone.

Description

technical field [0001] The invention belongs to the field of environmental catalysis and VOCs treatment, and in particular relates to an ultraviolet light self-excited ozone synergistic catalytic oxidation VOCs catalyst and its preparation method and application, in particular to a Mn-Zr-TiO 2 / GF ozone catalytic oxidation composite catalyst preparation and application. Background technique [0002] my country is a big industrial country, and the number of enterprises and cumulative total industrial output value in the country are on the rise. However, while the economy is booming, the environmental pollution problems, especially the industrial waste gas pollution problems are becoming more and more serious, which has seriously threatened the health of residents. At present, VOCs governance has attracted attention and been put on the agenda, and has attracted widespread attention from the government and people. At present, the most commonly used methods for VOCs are cataly...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J37/02B01J37/08B01J35/06B01D53/86B01D53/44
CPCB01D53/007B01D53/8687B01D53/869B01J23/34B01J37/0201B01J37/082B01D2257/708B01D2259/804B01D2251/104B01J35/58B01J35/39
Inventor 陈英文周玉康沈树宝
Owner NANJING UNIV OF TECH
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