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SnS2 two-dimensional ordered nanopore film as well as preparation method and application thereof

A nanoporous film and thin film technology, applied in coatings, instruments, analytical materials, etc., can solve problems such as difficulty in maintaining stability

Active Publication Date: 2021-05-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcoming that the metal oxide semiconductor (MOS) film sensor is not easy to m

Method used

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  • SnS2 two-dimensional ordered nanopore film as well as preparation method and application thereof
  • SnS2 two-dimensional ordered nanopore film as well as preparation method and application thereof
  • SnS2 two-dimensional ordered nanopore film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Ultrasonically treat the glass with acetone for 45 minutes, ultrasonically treat with ethanol solution for 45 minutes, ultrasonically clean with deionized water for 30 minutes and change the water repeatedly, soak in the piranha solution for 4 hours and clean with deionized water to complete the hydrophilic treatment of the glass;

[0044](2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, cover the 25mm*75mm glass sheet with hydrophilic treatment with water, and then perform monolayer self-assembly of the PS sphere on the glass substrate;

[0045] According to the self-transfer characteristics of the PS ball monolayer film, transfer it to a 25mm*30mm glass sheet;

[0046] Place the self-assembled PS single-layer template in a blast drying oven at 90°C for 90 minutes to dry, so that the PS template and the 25mm*30mm glass substrate are more tightly combined;

[0047] (3) With 0.2mol / L SnCl 4 ·5H 2 O solution is th...

Embodiment 2

[0056] (1) Ultrasonically treat the glass with acetone for 45 minutes, ultrasonically treat with ethanol solution for 45 minutes, ultrasonically clean with deionized water for 30 minutes and change the water repeatedly, soak in the piranha solution for 4 hours and clean with deionized water to complete the hydrophilic treatment of the glass;

[0057] (2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, cover the 25mm*75mm glass sheet with hydrophilic treatment with water, and then perform monolayer self-assembly of the PS sphere on the glass substrate;

[0058] According to the self-transfer characteristics of the PS ball monolayer film, transfer it to a 25mm*30mm glass sheet;

[0059] Place the self-assembled PS single-layer template in a blast drying oven at 90°C for 90 minutes to dry, so that the PS template and the 25mm*30mm glass substrate are more tightly combined;

[0060] (3) With 0.2mol / L SnCl 4 ·5H 2 O solution is t...

Embodiment 3

[0065] (1) Ultrasonically treat the glass with acetone for 45 minutes, ultrasonically treat with ethanol solution for 45 minutes, ultrasonically clean with deionized water for 30 minutes and change the water repeatedly, soak in the piranha solution for 4 hours and clean with deionized water to complete the hydrophilic treatment of the glass;

[0066] (2) Mix the PS sphere solution and alcohol 1:1 evenly, and after ultrasonic dispersion for 10 minutes, cover the 25mm*75mm glass sheet with hydrophilic treatment with water, and then perform monolayer self-assembly of the PS sphere on the glass substrate;

[0067] According to the self-transfer characteristics of the PS ball monolayer film, transfer it to a 25mm*30mm glass sheet

[0068] Place the self-assembled PS single-layer template in a blast oven at 90°C to dry for 90 minutes, so that the PS template and the 25mm*30mm glass substrate are more tightly bonded.

[0069] (3) With 0.05mol / L of SnCl 4 ·5H 2 O solution is the pre...

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Abstract

The invention discloses a SnS2 two-dimensional ordered nanopore film as well as a preparation method and application thereof, and belongs to the field of nano materials. According to the preparation method of the SnS2 two-dimensional ordered nanopore film, a two-dimensional honeycomb structure is prepared by adjusting the morphology structure of SnS2 from a PS template to a SnO2 macroporous film to a SnS2 macroporous film, and SnS2 petal structures are distributed, so that the gas-sensitive performance is greatly improved. According to the SnS2 two-dimensional ordered nanopore film and the application thereof, oxygen atoms are replaced by sulfur atoms, so that the oxygen vacancy defect is not limited by the oxygen thermodynamics imbalance problem, and more stable and reliable gas-sensitive performance can be obtained; and on the other hand, the optimal working temperature of traditional SnS2 is optimally reduced to 130 DEG C from traditional 250 DEG C, the gas-sensitive performance is more excellent, and the gas-sensitive response in hydrogen sulfide gas can reach 10000%.

Description

technical field [0001] The invention belongs to the field of nanometer materials, especially a kind of SnS 2 Two-dimensional ordered nanoporous film, preparation method and application thereof. Background technique [0002] In today's world, environmental pollution, especially the problem of air quality, is becoming more and more serious, and people pay more and more attention to the monitoring and detection of toxic gases in the atmosphere. Therefore, it is urgent to prepare gas sensors with excellent performance. The sensitive material in the form of thin film is because the gas response process mainly occurs on the surface of the sensitive material, which has high detection sensitivity and fast response time to gas. [0003] In addition, due to the larger specific surface area of ​​nanomaterials, stronger adsorption capacity, and smaller particle size, more surface active points can be provided, so the sensing performance is better. At present, the sensing material syst...

Claims

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Application Information

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IPC IPC(8): C03C17/22G01N27/12
CPCC03C17/22C03C17/006G01N27/127C03C2217/288C03C2217/425C03C2218/111C03C2218/32Y02A50/20
Inventor 戴正飞赵颖
Owner XI AN JIAOTONG UNIV
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