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Visible light catalysis H2O2 synthesis catalyst as well as preparation method and application thereof

A technology of H2O2 and catalyst, which is applied in the field of visible light catalytic synthesis of H2O2 catalyst and its preparation, which can solve the problems of complex hydrogen peroxide equipment, easy deactivation of catalyst, and high cost, and achieve improved photocatalytic activity and activity stability, low raw material cost, and easy operation Effect

Inactive Publication Date: 2013-06-26
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The object of the present invention is to provide a clean, efficient and low energy consumption visible light catalytic synthesis of H 2 o 2 Catalyst and its preparation method and application provide safety guarantee for the efficient and stable production of hydrogen peroxide

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  • Visible light catalysis H2O2 synthesis catalyst as well as preparation method and application thereof

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Embodiment 1

[0019] Take 1.5 mmol of cadmium nitrate, dissolve it in 200 ml of deionized water, and slowly drop the resulting solution into a solution of trisodium thiocyanate (1 mmol, 100 ml). After reacting for 24 hours, the obtained product was centrifuged, washed three times with deionized water, and dried in vacuum at 60°C for 24 hours to obtain the metal organic complex Cd 3 (C 3 N 3 S 3 ) 2 . Weigh 80 mg of the catalyst and directly disperse it in 20 ml of deionized water, and illuminate it with a light source ≥ 420 nm xenon lamp for 30 minutes in an air atmosphere.

Embodiment 2

[0021] Take 1.5 mmol of cadmium nitrate, dissolve it in 200 ml of deionized water, and slowly drop the resulting solution into a solution of trisodium thiocyanate (1 mmol, 100 ml). After reacting for 24 hours, the obtained product was centrifuged, washed three times with deionized water, and dried in vacuum at 60°C for 24 hours to obtain the metal organic complex Cd 3 (C 3 N 3 S 3 ) 2 . Weigh 80 mg of the catalyst and directly disperse it in 19 ml of deionized water containing 1 ml of methanol, and illuminate it with a light source ≥ 420 nm xenon lamp for 30 minutes in an air atmosphere.

Embodiment 3

[0023] Take 1 mmol of indium nitrate, dissolve it in 200 ml of deionized water, and slowly drop the resulting solution into the solution of trisodium thiocyanate (1 mmol, 100 mL). After reacting for 24 hours, the obtained product was centrifuged, washed three times with deionized water, and dried at 70°C for 24 hours in a nitrogen atmosphere to obtain the metal organic complex polymer InC 3 N 3 S 3 . Weigh 80 mg of the catalyst and directly disperse it in 19 ml of deionized water containing 1 ml of methanol, and illuminate it with a light source ≥ 420 nm xenon lamp for 30 minutes in an air atmosphere.

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Abstract

The invention discloses a visible light catalysis H2O2 synthesis catalyst as well as a preparation method and an application thereof. The visible light catalysis H2O2 synthesis catalyst is an organic polycomplexation matter formed by chromium, silver or indium ions with trithiocyanuric acid, is directly dispersed in a pure water system with alcohol as a sacrificial agent and can effectively reduce O2 to produce H2O2 under the induction action of visible lights, and each gram of catalyst can produce more than 0.20 mol of hydrogen peroxide. The preparation method of the visible light catalysis H2O2 synthesis catalyst disclosed by the invention is simple and easy to operate and raw materials are cheap, so that the preparation method disclosed by the invention is a clean, efficient and low-energy-consumption hydrogen peroxide production method applicable to industrialized popularization and application.

Description

technical field [0001] The invention belongs to the field of photocatalysts, in particular to a visible light catalytic synthesis of H 2 o 2 Catalyst and its preparation method and application. Background technique [0002] Hydrogen peroxide is an ideal green oxidant, and its production and use process has almost no pollution. It is called a "clean" chemical product and has a wide range of applications in chemical synthesis, bleaching, environmental protection, medicine and electronics. As the current global environmental pollution control requirements are being tightened and improved year by year, many types of inorganic oxidants such as H 2 SO 4 、HNO 3 and H 2 S, etc. have been eliminated from the market year by year, and the market demand for hydrogen peroxide is expanding day by day. At present, the most mature method for producing hydrogen peroxide is the anthraquinone method. Large domestic and foreign manufacturers basically use the anthraquinone method palladiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C01B15/023
Inventor 王绪绪龙金林戴文新丁正新
Owner FUZHOU UNIV
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