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a pt/nh 4 tiof 3 Porous Sachima Structured Photocatalyst

A photocatalyst and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems that have not yet been provided, and achieve easy control of dispersion, low preparation cost, and high specific surface area Effect

Active Publication Date: 2020-10-09
东营睿港投资服务有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, there is no one-step preparation of Pt / NH 4 TiOF 3 Porous Sachima Structured Photocatalyst

Method used

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  • a pt/nh <sub>4</sub> tiof <sub>3</sub> Porous Sachima Structured Photocatalyst
  • a pt/nh <sub>4</sub> tiof <sub>3</sub> Porous Sachima Structured Photocatalyst
  • a pt/nh <sub>4</sub> tiof <sub>3</sub> Porous Sachima Structured Photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Get 1ml dipropylene glycol, add 30ml acetic acid successively, 0.4g ammonium fluoride, 0.24g titanium sulfate, 4mg chloroplatinic acid obtain mixed solution;

[0017] (2) Transfer the mixed solution obtained in step (1) to a high-pressure reactor lined with polytetrafluoroethylene, and react at a constant temperature of 180°C for 8 hours;

[0018] (3) Naturally cool the reaction solution obtained in step (2) to room temperature, centrifuge, and repeat washing twice with deionized water and ethanol respectively to obtain Pt / NH 4 TiOF 3 Precipitate;

[0019] (4) Dry the precipitate obtained in step (3) in a 70°C drying oven to obtain Pt / NH 4 TiOF 3 Porous Sachima structured photocatalyst.

Embodiment 2

[0021] (1) Get 1ml dipropylene glycol, add 30ml acetic acid successively, 0.4g ammonium fluoride, 0.24g titanium sulfate, 2mg chloroplatinic acid obtain mixed solution;

[0022] (2) Transfer the mixed solution obtained in step (1) to a high-pressure reactor lined with polytetrafluoroethylene, and react at a constant temperature of 180° C. for 8 hours;

[0023] (3) Naturally cool the reaction solution obtained in step (2) to room temperature, centrifuge, and repeat washing twice with deionized water and ethanol respectively to obtain Pt / NH 4 TiOF 3 Precipitate;

[0024] (4) Dry the precipitate obtained in step (3) in a 70°C drying oven to obtain Pt / NH 4 TiOF 3 Porous Sachima structured photocatalyst.

Embodiment 3

[0026] (1) Get 1ml dipropylene glycol, add 30ml acetic acid successively, 0.4g ammonium fluoride, 0.24g titanium sulfate, 8mg chloroplatinic acid obtain mixed solution;

[0027] (2) Transfer the mixed solution obtained in step (1) to a high-pressure reactor lined with polytetrafluoroethylene, and react at a constant temperature of 180° C. for 8 hours;

[0028] (3) Naturally cool the reaction solution obtained in step (2) to room temperature, centrifuge, and repeat washing twice with deionized water and ethanol respectively to obtain Pt / NH 4 TiOF 3 Precipitate;

[0029] (4) Dry the precipitate obtained in step (3) in a 70°C drying oven to obtain Pt / NH 4 TiOF 3 Porous Sachima structured photocatalyst.

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Abstract

The invention discloses a Pt / NH 4 TIOF 3 Porous Shaqima structure photocatalyst, characterized in that the photocatalyst has a porous Shaqima structure, and the Pt / NH 4 TIOF 3 It is prepared by a one-step solvothermal reaction; ammonium fluoride, titanium sulfate and chloroplatinic acid are dissolved in dipropylene glycol and acetic acid to obtain a mixed solution, and the hydrothermal reaction is carried out in a high-pressure reactor lined with polytetrafluoroethylene. After the reaction is completed, the obtained product is centrifuged, washed and dried to obtain Pt / NH 4 TIOF 3 Porous Sachima structure. The method of the present invention adopts one-step reaction, has simple process and low preparation cost; the Pt / NH prepared by this method 4 TIOF 3 The porous Shaqima structured photocatalyst has a high specific surface area and the dispersion of Pt is easy to control. It has good photocatalytic activity for photocatalytic water splitting to produce hydrogen, and also has good photocatalytic degradation performance for organic dyes in aqueous solution.

Description

technical field [0001] The invention belongs to the field of photocatalyst materials and relates to a Pt / NH 4 TiOF 3 Photocatalysts, specifically, involve a Pt / NH 4 TiOF 3 Porous Sachima structured photocatalyst. Background technique [0002] Pt is a traditional catalytic material with excellent physical and chemical properties, and has a wide range of applications in electrocatalysis, photocatalysis, solar cells and other fields. However, as a noble metal, Pt resources are scarce and expensive, and problems related to stability and sulfur resistance must be solved urgently. These problems limit the application of noble metal Pt catalysts. Moreover, with the deepening of research, it is found that nano-sized catalyst particles are difficult to operate in practical applications, and due to the small size of nano-catalyst particles, large specific surface area, and thermodynamic instability, they are easy to agglomerate and condense during use or heat treatment to make the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24
CPCB01J27/24B01J35/394B01J35/50B01J35/60B01J35/39
Inventor 宋彩霞李洪浩周艳红王德宝赵健
Owner 东营睿港投资服务有限责任公司
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