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Au/ZnO-Alq3 catalyst and preparation method and application thereof

A technology of catalyst and co-precipitation method, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., to achieve a simple and easy preparation method, which is conducive to popularization and application, and improves The effect of electron density

Active Publication Date: 2018-10-26
FUJIAN FUSSHIA TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of Au / ZnO-Alq3 catalyst and its preparation method and application, it aims at the problem that the traditional Au supported catalyst needs to catalyze and oxidize CO at a higher temperature, by introducing stable chemical properties, good electronic Modification of the support ZnO by the organic small molecule functional material Alq3 with transport ability to increase the electron density on the surface of Au nanoparticles, thereby promoting the low-temperature catalytic oxidation of CO

Method used

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  • Au/ZnO-Alq3 catalyst and preparation method and application thereof
  • Au/ZnO-Alq3 catalyst and preparation method and application thereof
  • Au/ZnO-Alq3 catalyst and preparation method and application thereof

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Embodiment A

[0024] The preparation of embodiment Au / ZnO-Alq3 catalyst

[0025] (1) Add 0.05g Alq3 to 240mL aqueous solution containing 1g PVP, ultrasonically disperse for 30min and stir vigorously for 6h, then add 4.76g Zn(NO 3 ) 2 ·6H 2 O and 2.88g of urea were added to the above solution, hydrothermally reacted at 150°C for 12h, then centrifuged, washed, vacuum-dried at 80°C for 12h, and then placed in a muffle furnace for calcination at 500°C for 2h to obtain the ZnO-Alq3 carrier;

[0026] (2) Mix the carrier prepared in step (1) with 2 mL of HAuCl containing Au 0.01g / mL 4 solution (1.0g HAuCl 4 ·3H 2 O was dissolved in deionized water and adjusted to 100mL) and added to 100 mL of water, adjusted to pH 10 with 0.1 mol / L NaOH solution, stirred for 12 hours, centrifuged and washed, and the obtained precipitate was dried at 80°C and dried at 300°C The Au / ZnO-Alq3 catalyst with Au loading of 1.0 wt% was obtained by calcination at lower temperature for 2h.

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Abstract

The invention discloses an Au / ZnO-Alq3 catalyst and a preparation method and application thereof. The high-dispersion supported catalyst Au / ZnO-Alq3 is prepared by adding an organic semiconductor material Alq3 into a ZnO precursor to obtain a modified ZnO carrier of Alq3 and dispersing active component Au nanoparticles on the surface of the modified ZnO carrier of Alq3 with a co-precipitation method. The introduction of Alq3 improves the activity of CO oxidation under visible light, the catalyst is suitable for CO removal at room temperature under air or other conditions, and the preparation method is simple and easy to implement and favorable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of visible light catalytic oxidation of CO, and in particular relates to an Au / ZnO-Alq3 catalyst and a preparation method and application thereof. Background technique [0002] CO is a typical flammable, explosive and toxic gas, which can easily combine with hemoglobin (Hb) in blood. When the air contains ppm level CO, it will cause human poisoning; when the CO content in the air reaches 400ppm, people will feel headache, fatigue, nausea, etc.; Symptoms of exhaustion; when the content is greater than 1000ppm, people will experience drowsiness, convulsions, and in severe cases will suffocate to death. In the most studied hydrogen fuel cells, a small amount of CO can poison catalysts and electrodes, the most typical of which is the proton membrane exchange fuel cell (PEMFC). 0.5-1.0 vol% CO in the reformed gas will poison the PEMFC electrodes, and the CO concentration in the fuel gas must be reduced to below...

Claims

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Application Information

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IPC IPC(8): B01J31/26B01D53/86B01D53/62
CPCB01D53/864B01J31/26B01D2255/20792B01D2255/106B01D2255/802B01D2257/502B01J35/39Y02A50/20
Inventor 戴文新刘春霞付贤智王心晨陈旬张子重
Owner FUJIAN FUSSHIA TECH CO LTD
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