SnO2/MoS2 two-dimensional macroporous composite material film as well as preparation method and application thereof

A composite material thin film and thin film technology, applied in analytical materials, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of poor sensing performance, general response performance, long response and recovery time, etc. The effect of increased specific surface area, excellent gas sensing performance, and good gas sensing response

Active Publication Date: 2021-09-07
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SnO synthesized by YutongHan et al. 2 / MoS 2 Heterojunction in NO 2 In gas, 5ppm at room temperature is 18, but the sensing performance becomes worse at a slightly higher temperature, and basically responds well to low concentrations, and the response performance is average when the concentration is high, and the response recovery time is long

Method used

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  • SnO2/MoS2 two-dimensional macroporous composite material film as well as preparation method and application thereof
  • SnO2/MoS2 two-dimensional macroporous composite material film as well as preparation method and application thereof
  • SnO2/MoS2 two-dimensional macroporous composite material film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) The glass was ultrasonically treated with acetone for 45 minutes, ultrasonically treated with ethanol solution for 45 minutes, ultrasonically cleaned with deionized water for 30 minutes and the water was changed repeatedly, soaked in piranha solution for 4 hours, and then cleaned with deionized water;

[0038] (2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, spread water on the 25mm*75mm glass sheet after hydrophilic treatment, and then perform monolayer self-assembly of PS spheres on the glass substrate; according to The self-transfer characteristics of the PS spherical monolayer film are transferred to a 25mm*30mm glass sheet; then the self-assembled PS monolayer template is placed in a blast drying oven at 90°C for 90 minutes, so that the PS template is the same as the 25mm*30mm The glass substrate is more closely bonded;

[0039] (3) With 0.2mol / L SnCl 4 ·5H 2 O solution is the precursor solution, soak the ...

Embodiment 2

[0045] (1) The glass was ultrasonically treated with acetone for 45 minutes, ultrasonically treated with ethanol solution for 45 minutes, ultrasonically cleaned with deionized water for 30 minutes and the water was changed repeatedly, soaked in piranha solution for 4 hours, and then cleaned with deionized water;

[0046] (2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, spread water on the 25mm*75mm glass sheet after hydrophilic treatment, and then perform monolayer self-assembly of PS spheres on the glass substrate; according to The self-transfer characteristics of the PS spherical monolayer film are transferred to a 25mm*30mm glass sheet; the self-assembled PS monolayer template is placed in a blast drying oven at 90°C for 90 minutes, so that the PS template and the 25mm*30mm glass substrate more tightly bound;

[0047] (3) With 0.2mol / L SnCl 4 ·5H 2 O solution is the precursor solution, soak the PS monolayer film templa...

Embodiment 3

[0050] (1) The glass was ultrasonically treated with acetone for 45 minutes, ultrasonically treated with ethanol solution for 45 minutes, ultrasonically cleaned with deionized water for 30 minutes and the water was changed repeatedly, soaked in piranha solution for 4 hours, and then cleaned with deionized water;

[0051] (2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, spread water on the 25mm*75mm glass sheet after hydrophilic treatment, and then perform monolayer self-assembly of PS spheres on the glass substrate; according to The self-transfer characteristics of the PS spherical monolayer film are transferred to a 25mm*30mm glass sheet; the self-assembled PS monolayer template is placed in a blast drying oven at 90°C for 90 minutes, so that the PS template and the 25mm*30mm glass substrate more tightly bound;

[0052] (3) With 0.05mol / L of SnCl 4 ·5H 2 O solution is the precursor solution, soak the PS monolayer film te...

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Abstract

The invention discloses a SnO2 / MoS2 two-dimensional macroporous composite material film as well as a preparation method and an application thereof, and belongs to the field of sensor material preparation. According to the invention,the preparation method comprises the following steps: soaking a PS template so that gaps among PS microspheres can be filled with a SnCl4. 5H2O solution, then annealing, gasifying the PS microspheres, and forming the SnO2 macroporous film; taking a PS template as a template, then carrying out hydrothermal reaction, introducing MoS2 nanosheets on the basis of keeping a regularly arranged SnO2 macroporous structure, and regulating to enable the PS template to pass through a SnO2 macroporous film to pass through a SnO2 / MoS2 macroporous film. According to the SnO2 / MoS2 two-dimensional macroporous composite film disclosed by the invention, the porous structure is beneficial to gas discharge, and the compounding of nanosheets enables the specific surface area of the film to be increased and the surface active sites to be increased, so that the gas-sensitive property is greatly improved, the gas-sensitive property is more excellent, and the SnO2 / MoS2 two-dimensional macroporous composite film has good gas-sensitive response to nitrogen dioxide gas.

Description

technical field [0001] The invention belongs to the field of sensor material preparation, especially a kind of SnO 2 / MoS 2 Two-dimensional macroporous composite film, preparation method and application. Background technique [0002] Nowadays, environmental pollution and air quality issues have attracted much attention, and gas sensors with excellent performance are needed to monitor toxic gases in the environment. SnO synthesized by YutongHan et al. 2 / MoS 2 Heterojunction in NO 2 In gas, 5ppm at room temperature is 18, but the sensing performance becomes worse at a slightly higher temperature, and basically responds well to low concentrations. When the concentration is high, the response performance is average, and the response recovery time is long. Contents of the invention [0003] The object of the present invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of SnO 2 / MoS 2 Two-dimensional macroporous composite film, preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/25G01N33/00C01G19/02C01G39/06B82Y40/00B82Y30/00
CPCC03C17/25C03C17/002C03C17/006G01N33/0037C01G19/02C01G39/06B82Y40/00B82Y30/00C03C2217/29C03C2217/425C03C2218/111C03C2218/32C01P2004/24C01P2006/16Y02A50/20
Inventor 戴正飞赵颖刘航李佳磊
Owner GUILIN UNIV OF ELECTRONIC TECH
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