Red phosphorus/zinc oxide heterojunction film for realizing photocatalysis disinfection by utilizing screen LED light, and preparation method and application thereof

A zinc oxide and heterojunction technology, applied in coatings and other directions, can solve the problems of limited activity, poor photocatalytic efficiency of ZnO, and low charge separation efficiency, achieve good light transmission, improve photocatalytic activity, and be easy to implement Effect

Active Publication Date: 2020-05-08
TIANJIN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wide bandgap of ZnO limits its activity in the visible region of the solar spectrum
In addition, the photocatalytic efficiency of ZnO is poor due to the e

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Red phosphorus/zinc oxide heterojunction film for realizing photocatalysis disinfection by utilizing screen LED light, and preparation method and application thereof
  • Red phosphorus/zinc oxide heterojunction film for realizing photocatalysis disinfection by utilizing screen LED light, and preparation method and application thereof
  • Red phosphorus/zinc oxide heterojunction film for realizing photocatalysis disinfection by utilizing screen LED light, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example one

[0054] A preparation method of red phosphorus-zinc oxide heterojunction film using LED photocatalytic disinfection includes the following steps:

[0055] Step 1. Pretreatment of the substrate. The substrate is sequentially placed in acetone, absolute ethanol and deionized water for ultrasonic cleaning for 15 minutes, and dried naturally at room temperature. The substrate is glass;

[0056] Step 2. Prepare red phosphorous film,

[0057] After the completion of step 1, the surface of the substrate obtained by chemical vapor deposition (CVD) is used to prepare a red phosphorous film, including:

[0058] 1) Red phosphorus powder pretreatment: Put the red phosphorus powder at 200°C, hydrothermally treat it for 12 hours, and slowly drop to room temperature. The resulting powder is vacuum dried and then ground to below 100 microns to complete the red phosphorus powder pretreatment;

[0059] 2) Put the pretreated red phosphorous and the cleaned quartz glass in a CVD furnace ...

Example Embodiment

[0062] Example two

[0063] A preparation method of red phosphorus-zinc oxide heterojunction film using LED photocatalytic disinfection includes the following steps:

[0064] Step 1. Pretreatment of the substrate. The substrate is sequentially placed in acetone, absolute ethanol and deionized water for ultrasonic cleaning for 15 minutes, and dried naturally at room temperature. The substrate is glass;

[0065] Step 2. Prepare red phosphorous film,

[0066] After the completion of step 1, the surface of the substrate obtained by chemical vapor deposition (CVD) is used to prepare a red phosphorous film, including:

[0067] 1) Red phosphorus powder pretreatment: Put the red phosphorus powder at 200°C, hydrothermally treat it for 12 hours, and slowly drop to room temperature. The resulting powder is vacuum dried and then ground to below 100 microns to complete the red phosphorus powder pretreatment;

[0068] 2) Put the pretreated red phosphorous and the cleaned quartz glass in a CVD furnace ...

Example Embodiment

[0071] Example three

[0072] A preparation method of red phosphorus-zinc oxide heterojunction film using LED photocatalytic disinfection includes the following steps:

[0073] Step 1. Pretreatment of the substrate. The substrate is sequentially placed in acetone, absolute ethanol and deionized water for ultrasonic cleaning for 15 minutes, and dried naturally at room temperature. The substrate is glass;

[0074] Step 2. Prepare red phosphorous film,

[0075] After the completion of step 1, the surface of the substrate obtained by chemical vapor deposition (CVD) is used to prepare a red phosphorous film, including:

[0076] 1) Red phosphorus powder pretreatment: Put the red phosphorus powder at 200°C, hydrothermally treat it for 12 hours, and slowly drop to room temperature. The resulting powder is vacuum dried and then ground to below 100 microns to complete the red phosphorus powder pretreatment;

[0077] 2) Put the pretreated red phosphorous and the cleaned quartz glass in a CVD furnac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a red phosphorus-zinc oxide heterojunction film for realizing photocatalysis disinfection by utilizing screen LED light and a preparation method thereof. The preparation methodcomprises the following steps: step 1, selecting glass as a substrate, sequentially placing the substrate in acetone, absolute ethyl alcohol and deionized water for ultrasonic cleaning, and naturallydrying the substrate at room temperature for later use; 2, preparing a red phosphorus film, and plating a layer of the uniform red phosphorus film on the surface of the glass by using a chemical vapor deposition method; and 3, preparing a nanometer ZnO film, and plating a layer of the uniform nanometer ZnO film on the glass substrate deposited with the red phosphorus film obtained in the step 2 by using an atomic layer deposition method. The invention further discloses application of the red phosphorus-zinc oxide heterojunction film prepared according to the above technical scheme to screensof electronic equipment such as mobile phones. The red phosphorus-zinc oxide heterojunction film has the advantages that the red phosphorus-zinc oxide heterojunction film has excellent binding force and good light transmittance, can realize quick sterilization under the irradiation of LED light, and has broad-spectrum antibacterial property.

Description

Technical field [0001] The invention belongs to the technical field of biological antibacterial materials, and specifically relates to a red phosphorous / zinc oxide heterojunction film that uses screen LED photocatalytic disinfection, a preparation method and an application. Background technique [0002] In order to cope with epidemic diseases caused by pathogenic microorganisms and bacteria related to human contact, the demand for new antibacterial coatings is increasing. Among them, human touch screens, especially pathogenic microorganisms and bacterial contamination on the surface of mobile phones are a very urgent and important issue. With the increasing popularity of mobile phones, smart phones have become an indispensable tool in contemporary people’s lives. In addition to traditional communication functions such as making, answering calls, and sending information, smart phones are playing a role in services such as Internet access and payment. An increasingly important rol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C03C17/34C03C17/22C03C17/245
CPCC03C17/34C03C17/22C03C17/245C03C2218/152C03C2217/71
Inventor 吴水林李浚刘想梅崔振铎杨贤金
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products