a kind of sns 2 Two-dimensional ordered nanoporous film, preparation method and application thereof

A nanoporous film and film technology, applied in the field of nanomaterials, can solve problems such as difficulty in maintaining stability, and achieve the effects of easy control, good substrate bonding strength, and tight bonding

Active Publication Date: 2022-05-20
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 maintain long-term stability, and to provide a kind of SnS 2 Two-dimensional ordered nanoporous film, preparation method and application thereof

Method used

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  • a kind of sns <sub>2</sub> Two-dimensional ordered nanoporous film, preparation method and application thereof
  • a kind of sns <sub>2</sub> Two-dimensional ordered nanoporous film, preparation method and application thereof
  • a kind of sns <sub>2</sub> Two-dimensional ordered nanoporous film, preparation method and application thereof

Examples

Experimental program
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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, spread water on the 25mm*75mm glass sheet after hydrophilic treatment, and then perform monolayer self-assembly of PS spheres 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 the p...

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 SnS 2 A two-dimensional ordered nanoporous film, a preparation method and an application thereof belong to the field of nanomaterials. SnS of the present invention 2 Preparation method of two-dimensional ordered nanoporous film by regulating SnS 2 The morphology structure of PS template → SnO 2 Macroporous film→SnS 2 Macroporous film with a two-dimensional honeycomb structure and distributed SnS 2 The petal structure greatly improves the gas-sensing performance. SnS of the present invention 2 Two-dimensional ordered nanoporous films and their applications, replacing oxygen atoms with sulfur atoms will affect the problem of oxygen vacancy defects will not be limited and oxygen thermodynamic non-equilibrium, and can obtain more stable and reliable gas sensing performance; on the other hand, Traditional SnS 2 The optimum working temperature is reduced from the traditional 250°C to 130°C, and the gas sensing performance is even better, and the gas sensing response can reach 10,000% in hydrogen sulfide gas.

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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Patent Type & Authority Patents(China)
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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