Two-dimensional conductive mica-loaded carbon nitride photocatalytic material and preparation method thereof

A technology of conductive mica and catalytic materials, which is applied in the field of photocatalysis, can solve the problems of affecting the photocatalytic effect of photocatalysts, low photocatalytic activity, difficulty in wide application, and reduced photocatalytic efficiency, so as to achieve improved photocatalytic performance, simple preparation method, The effect of a wide range of raw material sources

Active Publication Date: 2017-01-04
NANJING UNIV OF TECH
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with TiO 2 The representative traditional photocatalytic materials can only use ultraviolet light, and the proportion of ultraviolet light in sunlight and indoor lighting is low, so its low photocatalytic activity is difficult to be widely used.
In addition, TiO 2 It contains expensive titanium metal, which greatly increases the cost. The price of a ton of P25 titanium dioxide is around 400,000
The pore structure of the cement itself and the hydration process of the cement will all affect the photocatalytic effect of the photocatalyst. The longer the age, the exposed photocatalyst will be surrounded by the hydration slurry again; and the CaCO generated by carbonization 3 It also reduces the photocatalytic efficiency

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
  • Two-dimensional conductive mica-loaded carbon nitride photocatalytic material and preparation method thereof
  • Two-dimensional conductive mica-loaded carbon nitride photocatalytic material and preparation method thereof
  • Two-dimensional conductive mica-loaded carbon nitride photocatalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment discloses a preparation method of a two-dimensional conductive mica-loaded carbon nitride photocatalytic material, comprising the following steps:

[0028] S1: Add 5g of mica powder to 200ml of ethanol, stir for 1 hour, fully swell, put it into a cell crusher, ultrasonicate at 400W for 4 hours, and then go through centrifugal drying, use the cavitation of ultrasonic waves to peel off the mica powder into two-dimensional sheets shaped mica. Among them, two-dimensional sheet mica is also called mica sheet.

[0029] S2: Weigh 5 g of the obtained mica flakes, put them into 200 ml of deionized water, adjust the obtained suspension to PH=2 with hydrochloric acid, add 5 g of tin tetrachloride pentahydrate in a constant temperature water bath at 70° C., and stir in the water bath for 3 hours at a constant temperature. After washing and drying, the obtained pale yellow powder was calcined at 600° C. for 2 hours to obtain a two-dimensional flake mica coated with ...

Embodiment 2

[0034] This embodiment discloses a preparation method of a two-dimensional conductive mica-loaded carbon nitride photocatalytic material, comprising the following steps:

[0035] S1: Add 5g of mica powder to 200ml of ethanol, stir for 1 hour, fully swell, put it into a cell crusher, ultrasonicate at 400W for 4 hours, and then go through centrifugal drying, use the cavitation of ultrasonic waves to peel off the mica powder into two-dimensional sheets shaped mica. Among them, two-dimensional sheet mica is also called mica sheet.

[0036] S2: Weigh 5 g of the obtained mica flakes, put them into 200 ml of deionized water, adjust the obtained solution to PH=2 with hydrochloric acid, add 5 g of tin tetrachloride pentahydrate in a constant temperature water bath at 70 ° C, stir in the water bath for 3 hours at a constant temperature, and wash After drying, the obtained pale yellow powder was calcined at 600° C. for 2 hours to obtain a two-dimensional flake mica coated with a tin dio...

Embodiment 3

[0041] This embodiment discloses a preparation method of a two-dimensional conductive mica-loaded carbon nitride photocatalytic material, comprising the following steps:

[0042] S1: Add 5g of mica powder to 200ml of ethanol, stir for 1 hour, fully swell, put it into a cell crusher, ultrasonicate at 400W for 4 hours, and then go through centrifugal drying, use the cavitation of ultrasonic waves to peel off the mica powder into two-dimensional sheets shaped mica. Among them, two-dimensional sheet mica is also called mica sheet.

[0043] S2: Weigh 5 g of the obtained mica flakes, put them into 200 ml of deionized water, adjust the obtained solution to PH=2 with hydrochloric acid, add 5 g of tin tetrachloride pentahydrate in a constant temperature water bath at 70 ° C, stir in the water bath for 3 hours at a constant temperature, and wash After drying, the obtained pale yellow powder was calcined at 600° C. for 2 hours to obtain a two-dimensional flake mica coated with a tin dio...

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 two-dimensional conductive mica-loaded carbon nitride photocatalytic material and a preparation method thereof. The two-dimensional conductive mica-loaded carbon nitride photocatalytic material is prepared by taking conductive tin dioxide-coated stripped flaky two-dimensional mica as a carrier and taking an amino compound as a raw material for synthesizing carbon nitride through a thermal polymerization method. A conductive layer formed by tin dioxide on the surface of flaky mica and carbon nitride form a bond, therefore, separation of photon-generated carriers of carbon nitride can be effectively promoted, and the photocatalytic property of carbon nitride can be improved; in addition, by taking the conductive mica flake as the carrier of carbon nitride, corrosion and embedding of an alkaline cement matrix on the photocatalytic material can be effectively prevented, and therefore the service life of carbon nitride can be prolonged. The method is easy to operate, low in cost, good in repeatability and suitable for large-scale industrialized production.

Description

technical field [0001] The invention relates to photocatalytic technology, in particular to a two-dimensional conductive mica-supported carbon nitride photocatalytic material and a preparation method thereof. Background technique [0002] At present, while the material production of human beings has developed rapidly, the living environment of human beings has been seriously polluted. Among them, air pollution is one of the main forms, including various volatile organic compounds and nitrogen oxides emitted from automobile exhaust, which have brought increasingly serious harm to human health. Eliminating pollution, purifying the environment, and promoting sustainable economic and social development have become the focus and major strategy of all countries in the world. Based on increasingly severe environmental problems, semiconductor photocatalytic self-cleaning technology is one of the most important research hotspots in this century, which can use inexhaustible solar ene...

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): B01J27/24C02F1/30C02F101/38
CPCB01J27/24B01J35/0033B01J35/004C02F1/30C02F2101/38C02F2305/10
Inventor 寇佳慧周强陆春华彭枫萍熊吉如袁慧雯
Owner NANJING UNIV OF TECH
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap