Unlock instant, AI-driven research and patent intelligence for your innovation.

CaIn2O4 photocatalyst with three-dimensional hierarchical structure and preparation method thereof

A photocatalyst and graded technology, applied in the field of hierarchical structure CaIn2O4 photocatalyst and its preparation, to achieve the effects of excellent photocatalyst, high efficiency and improved production efficiency

Active Publication Date: 2020-05-29
国中创业(北京)环保科技有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, regarding the three-dimensional hierarchical structure CaIn 2 o 4 Photocatalysts are rarely reported

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
  • CaIn2O4 photocatalyst with three-dimensional hierarchical structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step (1): Add 10mL of ethylene glycol to 40mL of deionized water to obtain a mixed solvent. Under constant stirring, add a certain amount of indium nitrate and urea to the above mixed solvent to prepare nitric acid with a concentration of 0.1mol / L The indium solution and the urea solution with a concentration of 0.1mol / L were added dropwise to the indium nitrate solution under constant stirring to obtain a precursor solution, and the stirring was continued for 10 minutes to make the precursor evenly mixed.

[0021] Step (2): Mix polyvinylpyrrolidone (PVP) and P123 at a volume ratio of 1:1 to obtain a mixed shape control agent. Under stirring conditions, add the obtained mixed shape control agent to the above reaction precursor, and then sequentially Add an appropriate amount of calcium acetate and ammonia water to adjust the pH of the reaction solution to about 7, transfer the obtained solution to a polytetrafluoroethylene-lined high-pressure reactor for 170°C microwave ...

Embodiment 2

[0023] Step (1): Add 10mL of ethylene glycol to 40mL of deionized water to obtain a mixed solvent. Under constant stirring, add a certain amount of indium nitrate and urea to the above mixed solvent to prepare nitric acid with a concentration of 0.1mol / L The indium solution and the urea solution with a concentration of 0.1mol / L were added dropwise to the indium nitrate solution under constant stirring to obtain a precursor solution, and the stirring was continued for 10 minutes to make the precursor evenly mixed.

[0024] Step (2): Mix polyvinylpyrrolidone (PVP) and P123 at a volume ratio of 1:1 to obtain a mixed shape control agent. Under stirring conditions, add the obtained mixed shape control agent to the above reaction precursor, and then sequentially Add an appropriate amount of calcium acetate and ammonia water to adjust the pH of the reaction solution to about 7, transfer the obtained solution to a polytetrafluoroethylene-lined high-pressure reactor for 175°C microwave ...

Embodiment 3

[0026] Step (1): Add 10mL of ethylene glycol to 40mL of deionized water to obtain a mixed solvent. Under constant stirring, add a certain amount of indium nitrate and urea to the above mixed solvent to prepare nitric acid with a concentration of 0.1mol / L The indium solution and the urea solution with a concentration of 0.1mol / L were added dropwise to the indium nitrate solution under constant stirring to obtain a precursor solution, and the stirring was continued for 10 minutes to make the precursor evenly mixed.

[0027]Step (2): Mix polyvinylpyrrolidone (PVP) and P123 at a volume ratio of 1:1 to obtain a mixed shape control agent. Under stirring conditions, add the obtained mixed shape control agent to the above reaction precursor, and then sequentially Add an appropriate amount of calcium acetate and ammonia water to adjust the pH of the reaction solution to about 7, transfer the obtained solution to a polytetrafluoroethylene-lined high-pressure reactor for 180°C microwave h...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a CaIn2O4 photocatalyst with a three-dimensional hierarchical structure and a preparation method thereof. According to the method, ethylene glycol and deionized water are used as reaction solvents, a morphology control agent is used for regulating and controlling the morphology of the product, all the raw materials are mixed and then subjected to a microwave hydrothermal reaction, and the semiconductor photocatalyst with excellent performance can be obtained through simple heat treatment after the reaction is finished. The method is simple to operate, high in efficiencyand stable in product morphology and performance, and has a good application prospect.

Description

technical field [0001] The present invention relates to the field of semiconductor photocatalysts, more specifically, to a three-dimensional hierarchical structure CaIn 2 o 4 Photocatalyst and its preparation method. Background technique [0002] In recent years, the energy crisis and environmental pollution have become increasingly prominent, and photocatalytic technology has attracted much attention because of its potential value in new energy development and environmental protection. Titanium dioxide is currently the most well-studied and widely used photocatalyst. However, as a wide-bandgap semiconductor, titanium dioxide has a good photocatalytic effect only under ultraviolet light, and the material itself has disadvantages such as fast electron-hole recombination, which cannot achieve high catalytic efficiency. Therefore, the development of new photocatalysts has gradually attracted attention. [0003] CaIn 2 o 4 It is valued because of its stable chemical proper...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/08C01G15/00
CPCB01J23/08B01J23/002C01G15/00C01P2004/34C01P2004/45C01P2004/03C01P2004/62B01J35/23B01J35/39
Inventor 刘海洋
Owner 国中创业(北京)环保科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com