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Titanium dioxide/ruthenium monatomic noble metal nano catalytic material for degrading pollutants and preparation method thereof

A nano-catalytic material, titanium dioxide technology, applied in metal/metal oxide/metal hydroxide catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problem of reducing the degradation effect of catalysts on air pollutants, single atomic Problems such as low metal loading and poor experimental repeatability can improve the photocatalytic degradation performance, excellent photocatalytic degradation performance, and uniform properties.

Pending Publication Date: 2021-09-07
广东天原新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN111013626A discloses a single-atom metal graphene catalyst based on needle coke and its preparation method. The catalyst uses graphene oxide as a carrier, and obtains a Nitrogen-doped graphene-supported single-atom metal catalysts are used for water treatment to degrade pollutants; although the functionalized graphene prepared by the invention has a large specific surface area, which can increase its anchoring with single metal atoms, it is oxidized When graphene is used as a carrier to prepare catalysts, there are actually problems of poor stripping effect, poor experimental repeatability and unstable properties, which are not suitable for industrial applications.
CN110292927A discloses a single-atom metal catalyst and its preparation and application in degrading air pollutants. The invention makes a single-atom metal catalyst from metallocene-supported mesoporous carbon through heat treatment to degrade air pollutants; although This preparation method is relatively simple, but the single-atom metal loading in the prepared catalyst is too low, and only relying on the single-atom metal catalyst to degrade pollutants reduces the degradation effect of the catalyst on air pollutants, so that the material can only be used in relatively Complete the effective degradation of air pollutants for a long time

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  • Titanium dioxide/ruthenium monatomic noble metal nano catalytic material for degrading pollutants and preparation method thereof
  • Titanium dioxide/ruthenium monatomic noble metal nano catalytic material for degrading pollutants and preparation method thereof
  • Titanium dioxide/ruthenium monatomic noble metal nano catalytic material for degrading pollutants and preparation method thereof

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Embodiment 1

[0023] Embodiment 1 of the present invention provides a titanium dioxide / ruthenium single-atom noble metal nano-catalyst material for degrading pollutants and a preparation method thereof. The specific steps are as follows:

[0024] (1) Under magnetic stirring, 1g of zinc nitrate hexahydrate and 0.1g of ruthenium phthalocyanine-4,4' bipyridyl complex (RuPc(bipy) 2 ) was dissolved in 50mL methanol, stirred evenly; then stirred at a rotating speed of 700rpm / min for 24h, then added 20mL 2-methylimidazole / methanol solution to prepare a uniform solution, stirred for 24h; then the obtained product was washed with methanol for 5 times, and then transferred to a vacuum drying oven to obtain RuPc(bipy) 2 / ZIF-8 precursor;

[0025] (2) RuPc(bipy) prepared in step (1) 2 / ZIF-8 precursor was transferred to a tube furnace, introduced inert gas, and pyrolyzed at 900°C for 5h; after cooling to room temperature, the obtained product was soaked and washed with 4mol / L sulfuric acid, and final...

Embodiment 2

[0029] Embodiment 2 of the present invention provides a titanium dioxide / ruthenium single-atom noble metal nano-catalyst material for degrading pollutants and a preparation method thereof, the specific steps of which are as follows:

[0030] (1) Under magnetic stirring, 2g of zinc nitrate hexahydrate and 0.05g of ruthenium phthalocyanine-4,4'bipyridine complex (RuPc(bipy) 2 ) was dissolved in 50mL methanol, stirred evenly; then stirred at a rotating speed of 700rpm / min for 24h, then added 20mL 2-methylimidazole / methanol solution to prepare a uniform solution, stirred for 24h; then the obtained product was washed with methanol for 5 times, and then transferred to a vacuum drying oven to obtain RuPc(bipy) 2 / ZIF-8 precursor;

[0031] (2) RuPc(bipy) prepared in step (1) 2 / ZIF-8 precursor was transferred to a tube furnace, introduced inert gas, and pyrolyzed at 900°C for 5h; after cooling to room temperature, the obtained product was soaked and washed with 4mol / L sulfuric acid,...

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Abstract

The invention discloses a titanium dioxide / ruthenium monatomic noble metal nano catalytic material for degrading pollutants and a preparation method thereof. The preparation method comprises the steps that RuPc, 2-methylimidazole and zinc nitrate serve as precursors to prepare a ruthenium monatomic metal material, then the ruthenium monatomic metal material is subjected to in-situ compounding with titanium dioxide through solvent heat treatment, and finally, the titanium dioxide / ruthenium monatomic noble metal nano catalytic material is prepared and shows excellent photocatalytic degradation performance.

Description

technical field [0001] The invention relates to the technical field of single-atom metal catalysts and photocatalysis, in particular to a titanium dioxide / ruthenium single-atom noble metal nano-catalysis material for degrading pollutants and a preparation method thereof. Background technique [0002] In industrial production, catalysts play an important role, so how to improve the chemical conversion efficiency of catalysts to promote the development of industry has always been an important task for researchers to explore. In recent years, research on single-atom catalysts (SACs) has been regarded as a new frontier in the field of catalysis. Single-atom catalysts exhibit excellent catalytic activity and specific catalytic sites due to their unique electronic structures, abundant surface and mass transfer channels, and maximum atom utilization efficiency. Therefore, the unique properties of single-atom catalysts make them candidates for the design of efficient metal catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/46B01J27/24B01J21/06B01J35/08B01J37/00B01J37/04C02F1/30C02F101/30C02F101/34C02F101/36C02F101/38
CPCB01J37/0009B01J37/04B01J27/24B01J23/462B01J21/063C02F1/30C02F2101/308C02F2101/36C02F2101/34C02F2101/38C02F2305/10B01J35/391B01J35/39
Inventor 程帆
Owner 广东天原新材料有限公司
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