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Honeycomb TiO2-Ag nanocomposite and preparation method thereof

A nanocomposite, honeycomb-like technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as difficulty in synthesizing non-silicon-based materials, and achieve highly ordered structure and simple process. , the effect of stable performance

Active Publication Date: 2017-07-28
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that it is difficult to synthesize a non-silicon-based material with a special structured and ordered macroporous structure by means of the prior art, the present invention provides a honeycomb TiO2 with an ordered macroporous structure 2 -Ag nanocomposite and preparation method thereof

Method used

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  • Honeycomb TiO2-Ag nanocomposite and preparation method thereof
  • Honeycomb TiO2-Ag nanocomposite and preparation method thereof

Examples

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Embodiment 1

[0023] 1. Preparation of two-dimensional ordered polystyrene colloidal arrays

[0024] A single-layer two-dimensional ordered colloidal ball template was prepared by self-assembly technology. The specific steps were: put the silicon wafer substrate in a mixed solution containing ammonia, hydrogen peroxide and water (volume ratio: 1:2:6) for 300 °C for 5-10 minutes, and then ultrasonically cleaned with deionized water and ethanol solution for 2-3 times. Soak it in 2% sodium lauryl sulfate solution for 24 hours to obtain a hydrophilic substrate surface. Take polystyrene solution and ethanol solution with a volume ratio of 1:1 and mix them, ultrasonically oscillate for 5s, then take an appropriate amount of the mixed solution and drop it on the silicon wafer substrate after hydrophilic treatment. Immerse in a container with a concentration of 12-15mmol / L NaCl saline solution. Under the action of the surface tension of the brine, the mixed solution oscillates and diffuses with th...

Embodiment 2

[0030] 1. Preparation of two-dimensional ordered polystyrene colloidal arrays

[0031] A single-layer two-dimensional ordered colloidal ball template was prepared by self-assembly technology. The specific steps were: put the silicon wafer substrate in a mixed solution containing ammonia, hydrogen peroxide and water (volume ratio: 1:2:6) for 300 °C for 5-10 minutes, and then ultrasonically cleaned with deionized water and ethanol solution for 2-3 times. Soak it in 2% sodium lauryl sulfate solution for 24 hours to obtain a hydrophilic substrate surface. Take polystyrene solution and ethanol solution with a volume ratio of 1:1 and mix them, ultrasonically oscillate for 5s, then take an appropriate amount of the mixed solution and drop it on the silicon wafer substrate after hydrophilic treatment. Immerse in a container filled with a NaCl solution with a concentration of 12-15mmol / L. Under the action of the surface tension of the brine, the mixed solution oscillates and diffuses ...

Embodiment 3

[0037] 1. Preparation of two-dimensional ordered polystyrene colloidal arrays

[0038]A single-layer two-dimensional ordered colloidal ball template was prepared by self-assembly technology. The specific steps were: put the silicon wafer substrate in a mixed solution containing ammonia, hydrogen peroxide and water (volume ratio: 1:2:6) for 300 °C for 5-10 minutes, and then ultrasonically cleaned with deionized water and ethanol solution for 2-3 times. Soak it in 2% sodium lauryl sulfate solution for 24 hours to obtain a hydrophilic substrate surface. Take polystyrene solution and ethanol solution with a volume ratio of 1:1 and mix them, ultrasonically oscillate for 5s, then take an appropriate amount of the mixed solution and drop it on the silicon wafer substrate after hydrophilic treatment. Immerse in a container with a concentration of 12-15mmol / L NaCl saline solution. Under the action of the surface tension of the brine, the mixed solution oscillates and diffuses with the...

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Abstract

The invention discloses a honeycomb TiO2-Ag nanocomposite and a preparation method thereof, and belongs to the technical field of nanomaterials. Aiming at the problem of synthesis of a non-silicon base material with special structure and orderly macroporous structure in the prior art, the invention uses a single-layer two-dimensional orderly polystyrene colloidal sphere template as a template for preparing a TiO2 / Ag nanometer cap array through a magnetron sputtering method; and the TiO2 / Ag nanocomposite with a honeycomb structure is prepared through a temperature change heat treatment method under protection of high-purity argon. The honeycomb TiO2-Ag nanocomposite has such characteristics as large area, orderly height and adjustable nanometer pores, and can be applied to such fields as catalysis, energy and detection.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials. Background technique [0002] Nanomaterials have many unique properties and special applications. Due to their four characteristics: small size, large specific surface area, high surface energy, and large surface atomic ratio, they have led to macroscopic sound, light, electricity, magnetism, heat, mechanics, etc. The physical effects of nanomaterials are different from those of conventional materials, and they are reflected in small size effects, quantum size effects, macroscopic tunnel effects, and surface effects, which have attracted widespread attention. However, the porosity of the material endows the original material with new and excellent properties. It has the characteristics of high surface area, low density, high permeability, high electrical and thermal conductivity, and flexible and adjustable structure. It is expected to be used in catalysis, environment, energy, bioche...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/20C23C14/08B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C23C14/083C23C14/205C23C14/352
Inventor 陈雷闫超王雅新张永军杨景海
Owner JILIN NORMAL UNIV
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