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Visible-light responding photocatalytic material with Ag particles in different morphologies loaded on AgInO2 surface in situ and preparation method of visible-light responding photocatalytic material

A photocatalytic material and visible light technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of high recombination rate of photogenerated carriers and low quantum efficiency , many steps and other problems, to achieve the effect of simple preparation method, reduced recombination rate and low cost

Inactive Publication Date: 2016-10-12
UNIV OF JINAN
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  • Abstract
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Problems solved by technology

But like most photocatalytic materials, pure AgInO 2 Because it is difficult to obtain samples with good crystallinity and uniform morphology, there are also problems of high recombination rate of photogenerated carriers and low quantum efficiency.
AgInO 2 The preparation of photocatalytic materials includes high temperature solid phase and co-precipitation combination method, ion exchange method, oxidation flux method to synthesize orthorhombic AgInO 2 Different synthetic methods will affect the structure and physical and chemical properties of the product. These synthetic methods have the disadvantages of complex operation, many steps, and high energy consumption.

Method used

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  • Visible-light responding photocatalytic material with Ag particles in different morphologies loaded on AgInO2 surface in situ and preparation method of visible-light responding photocatalytic material
  • Visible-light responding photocatalytic material with Ag particles in different morphologies loaded on AgInO2 surface in situ and preparation method of visible-light responding photocatalytic material
  • Visible-light responding photocatalytic material with Ag particles in different morphologies loaded on AgInO2 surface in situ and preparation method of visible-light responding photocatalytic material

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Experimental program
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Effect test

Embodiment 1

[0044] Embodiment 1: Preparation of AgInO 2

[0045] Prepare 0.01mol In(NO 3 ) 3 4.5H 2 O was added to 10ml of deionized water; 50ml of 10mol / L NaOH solution; 20ml of 0.5mol / L AgNO 3 solution.

[0046] Add 50ml of 10mol / L NaOH solution to the prepared In(NO 3 ) 3 In the solution, stir rapidly until the solution is completely cooled to obtain a suspension; press AgNO 3 : In(NO 3 ) 3 =1.0 molar ratio, 20ml 0.5mol / L AgNO 3 Add the solution dropwise to the above suspension, stir while adding dropwise, and continue stirring for 1 hour after the dropwise addition; transfer the solution to a polytetrafluoroethylene-lined reactor with a total volume of 120ml, with a filling degree of 70-80% volume Ratio, react at 200°C for 48h; after the reaction, cool to room temperature, wash with deionized water and absolute ethanol, and dry at 60°C for 12h to obtain the micronano orange powder material AgInO 2 .

[0047] Embodiment 1 micronano powder material AgInO 2 , electron micro...

Embodiment 2

[0048] Embodiment 2: Preparation of AgInO 2

[0049] Prepare 0.01mol In(NO 3 ) 3 4.5H 2 O was added to 10ml of deionized water; 50ml of 10mol / L NaOH solution; 20ml of 0.5mol / L AgNO 3 solution.

[0050] Add 50ml of 5mol / L NaOH solution to the prepared In(NO 3 ) 3 In the solution, stir rapidly until the solution is completely cooled to obtain a suspension; press AgNO 3 : In(NO 3 ) 3 =1.0 molar ratio, 20ml 0.5mol / L AgNO 3 Add the solution dropwise to the above suspension, stir while adding dropwise, and continue stirring for 1 hour after the dropwise addition; transfer the solution to a polytetrafluoroethylene-lined reactor with a total volume of 120ml, with a filling degree of 70%-80% Volume ratio, react at 190°C for 60h. After the reaction, cool to room temperature, wash with deionized water and absolute ethanol, and dry at 60°C for 12 hours to obtain the micronano orange powder material AgInO 2 .

[0051] The topography of the sample that embodiment 2 obtains is ...

Embodiment 3

[0052] Embodiment 3: Preparation of AgInO 2

[0053] Prepare 0.01mol In(NO 3 ) 3 4.5H 2 O was added to 10ml of deionized water; 50ml of 10mol / L NaOH solution; 20ml of 0.5mol / L AgNO 3 solution.

[0054] Add 50ml of 10mol / L NaOH solution to the prepared In(NO 3 ) 3 In the solution, stir rapidly until the solution is completely cooled to obtain a suspension; press AgNO 3 : In(NO 3 ) 3 =1.05 molar ratio, 20 ml 0.5mol / L AgNO 3 Add the solution dropwise to the above suspension, stir while adding dropwise, and continue stirring for 1 hour after the dropwise addition; transfer the solution to a polytetrafluoroethylene-lined reactor with a total volume of 120 ml, with a filling degree of 70-80% Volume ratio, react at 220°C for 24h; after the reaction, cool to room temperature, wash with deionized water and absolute ethanol, and dry at 60°C for 12h to obtain the micronano orange powder material AgInO 2 .

[0055] Embodiment 3 micronano powder material AgInO 2 , electron mi...

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Abstract

The invention relates to a visible-light responding photocatalytic material with Ag particles in different morphologies loaded on AgInO2 surface in situ. The visible-light responding photocatalytic material is an AgInO2 microncrystal formed through in-situ deposition of Ag nanoparticles in different morphologies on the AgInO2 particle surface, wherein the AgInO2 microncrystal adopts a delafossite structure of an orthorhombic system, the specific surface area is 0.5-3 m<2> / g, the Ag nanoparticles in different morphologies comprise irregular Ag nanoparticles, sphere-like Ag nanoparticles and cubic Ag nanoparticles, and the photocatalytic material adopts the composite structure of Ag NPs@AgInO2, Ag NSs@AgInO2 or Ag NCs@AgInO2. The invention further provides a preparation method of AgInO2. The photocatalytic performance of AgInO2 is further improved by depositing nano-Ag in different morphologies on the AgInO2 surface, and the method has the advantages that the method is simple, reaction conditions are mild, the operation is convenient, energy consumption is low and the like.

Description

technical field [0001] The invention belongs to the field of synthesis of micro-nano photocatalytic powder materials, and relates to an AgInO 2 Visible light-responsive photocatalytic material with in-situ supported Ag particles with different morphologies on the surface, its preparation method and application. Background technique [0002] In recent years, with the development of the economy, energy and environmental problems have become increasingly prominent. Environmental pollution has brought great harm to human production and life, especially the pollution of water resources has endangered human health. Feasible solutions are urgently needed. method to treat sewage. The traditional method of water pollution control has the disadvantages of high energy consumption, complicated equipment, high cost, and easy to cause secondary pollution. Therefore, the development of a new, efficient and practical environmental protection treatment technology has become a research hots...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/50C02F1/30C02F1/72B01D53/86B01D53/44
CPCB01D53/8668C02F1/30C02F1/72B01J23/50C02F2305/10B01D2258/06B01J35/39
Inventor 王刚杨萍
Owner UNIV OF JINAN
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