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Device and method for photosensitizing the surface of a carrier to prepare metal nanomaterials

A technology of metal nano-carrier surface, applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of unpublished literature reports of nano-metal materials, and achieve strong adhesion strength and controllability strong effect

Active Publication Date: 2016-04-13
ZHANGJIAGANG IND TECH RES INST CO LTD DALIAN INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the metal nanomaterials prepared by this photosensitization method are dispersed in the liquid phase system in a colloidal state. It is worth noting that there is no published literature report on the photosensitization method to prepare nano-metal materials that are firmly attached to the surface of the carrier.

Method used

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  • Device and method for photosensitizing the surface of a carrier to prepare metal nanomaterials
  • Device and method for photosensitizing the surface of a carrier to prepare metal nanomaterials
  • Device and method for photosensitizing the surface of a carrier to prepare metal nanomaterials

Examples

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Effect test

Embodiment 1

[0033] Utilize the device of the present invention to carry out the method for photosensitizing the base surface of a quartz plate to prepare a nano-silver material, comprising the following steps:

[0034] (1) Preparation of photosensitization reaction solution: Dissolve silver nitrate and benzophenone into ethanol to prepare a photosensitization reaction solution. The concentrations of silver nitrate and benzophenone in the solution are 10mmol / L and 4mmol / L, respectively;

[0035] (2) The photosensitization reaction solution obtained in step (1) is poured into a quartz photoreaction cell, the carrier is a quartz plate base, and the size is 20mm in length, 4mm in width, and 1mm in thickness; put the carrier into the photosensitization reaction solution and immerse it, cover Put the cork on the bottle, and then seal the ventilation hole on the cork with a sealing film; place the photoreaction cell lying down so that one side wall faces down, and due to gravity, the base of the ...

Embodiment 2

[0040] Utilize the device of the present invention to carry out the method for preparing nano-copper material by photosensitization of the surface of the quartz plate base, its steps are different from Example 1 in that:

[0041] 1. Preparation of photosensitization reaction solution: Melt copper nitrate and benzophenone into ethanol to prepare photosensitization reaction solution. The concentrations of silver nitrate and benzophenone in the solution are 5mmol / L and 3mmol / L respectively;

[0042] 2. The carrier is a quartz plate base, with a size of 20mm in length, 4mm in width and 1mm in thickness;

[0043] 3. Set the water temperature in the temperature control tank to 10°C, the light source is ultraviolet continuous light, the wavelength range is 250-450nm, the electric power is 1-25000W, and the beam irradiation time is 30min;

[0044] The nano-silver material loaded on the prepared carrier is ultrasonically cleaned, and no nano-silver material falls off after 30 minutes, ...

Embodiment 3

[0046] Utilize the device of the present invention to carry out the method for photosensitizing the base surface of a quartz plate to prepare a nano-gold material, the steps are different from Example 1 in that:

[0047] 1. Preparation of photosensitization reaction solution: dissolve gold chlorate, benzophenone and polyvinylpyrrolidone (stabilizer) into ethanol to prepare photosensitization reaction solution, in which gold chlorate, benzophenone and polyethylene The concentrations of pyrrolidone were 4mmol / L, 3mmol / L and 0.02mmol / L respectively;

[0048] 2. The carrier is porous silica particles with a pore size of about 1nm;

[0049] 3. Set the water temperature in the temperature control tank to 10°C, the light source is ultraviolet continuous light, the wavelength range is 250-450nm, the electric power is 1-25000W, and the beam irradiation time is 20min;

[0050] Ultrasonic cleaning is performed on the prepared nano-gold material loaded on the carrier, and no nano-silver ...

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Abstract

The invention discloses an apparatus and a method for preparing a metal nano-material on the surface of a carrier through photosensitization, belonging to the technical field of preparation of nano-materials. According to the method, a light source is white light or an ultraviolet nanosecond laser pulse or ultraviolet continuous light source; a carrier material is soaked in a photosensitization reaction solution consisting of a photosensitizer and a metal salt precursor; then solution is put into a sealed photoreaction tank, and the temperature of the solution is controlled by a temperature control groove; light beams emitted by the light source irradiate the carrier material and the sample solution, and after a certain period of time, the metal nano-material is firmly deposited on the surface of the carrier. With the apparatus and method provided by the invention, the advantages of rapidness, a cheap price and strong controllability can be obtained in preparation of the metal nano-material; the prepared material has a particle size which can be controlled in the range of a few nanometers and is firmly attached to the surface of the carrier.

Description

technical field [0001] The invention relates to the technical field of preparation of metal nanomaterials, in particular to a device and method for photosensitizing the surface of a carrier to prepare metal nanomaterials. The method can firmly deposit metal nanomaterials on the carrier surface under the condition of adjustable temperature. Background technique [0002] The large specific surface area, high surface energy and macroscopic quantum tunneling effect brought by the nanometer size endow nano-metal materials with unique properties, and it has received widespread attention in many basic research fields. For example, J.T.Hupp et al. used the plasmon resonance effect on the surface of silver nanoparticles to increase the photocurrent intensity of fuel-sensitized solar cells (K.Sugawa, T.Akiyama, H.KawazumiandS.Yamada, Plasmon-Enhanced photocurrentgeneration fromself-assembledmonolayersofphthalocyaninebyusinggoldnanoparticlefilms, Langmuir, 2009, 25, 3887-3893); Bao Xin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/31B22F9/24
Inventor 杨阳韩克利刘建勇徐大力
Owner ZHANGJIAGANG IND TECH RES INST CO LTD DALIAN INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
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