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

Porous-carbon-material-loaded mesoporous TiO2-Ag complex, and preparation method thereof

A preparation process and technology for composites, which are applied in the directions of light water/sewage treatment, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems that restrict industrial production and practical application, there is no effective method for preparing porous materials, and the specific surface area of ​​the carrier It has the effect of saving the cost of sewage degradation treatment, easy industrial production and low production cost.

Inactive Publication Date: 2015-02-04
JISHOU UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We know that nonporous TiO 2 Deposited in the pores, the specific surface area of ​​the carrier is reduced, which weakens the effect of using loading to increase the specific surface area to enhance the catalytic activity, which affects and restricts its industrial production and practical application
However, it is worth noting that, so far, no porous material (carbon) loaded with mesoporous (TiO 2 -X) An effective method for composite nano photocatalytic materials

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
  • Porous-carbon-material-loaded mesoporous TiO2-Ag complex, and preparation method thereof
  • Porous-carbon-material-loaded mesoporous TiO2-Ag complex, and preparation method thereof
  • Porous-carbon-material-loaded mesoporous TiO2-Ag complex, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: first dodecyltrimethylammonium bromide (30g) and deionized water (60ml) form liquid crystal, secondly, adopt sol-gel method, 60g purity is the butyl titanate of 99.0%, 2g Silver nitrate and 100g of absolute ethanol were mixed, then added into a three-necked flask, and stirred evenly with a GS122 electronic constant speed stirrer. Mix 20g of absolute ethanol with 4g of distilled water, then slowly drop it into the three-necked bottle through the separatory funnel, control the pH value between 4-6, then add the liquid crystal into the three-necked bottle, and the butyl titanate will be hydrolyzed and condensed The reaction forms a liquid crystal-inorganic precursor; in addition, 15g of coconut shell activated carbon is placed in a shelf in a supercritical autoclave with liquid crystal-TiO 2 - 20ml of Ag precursor, heated up to 100°C at a heating rate of 2°C / min, and maintained at a pressure of 9MPa for 2h; then cooled the supercritical kettle to room tempera...

Embodiment 2

[0048] Embodiment 2: first dodecyltrimethylammonium bromide (30g) and deionized water (60ml) form liquid crystal, secondly, adopt sol-gel method, 60g purity is the butyl titanate of 99.0%, 2g Silver nitrate and 100g of absolute ethanol were mixed, then added into a three-necked flask, and stirred evenly with a GS122 electronic constant speed stirrer. Mix 20g of absolute ethanol with 4g of distilled water, then slowly drop it into the three-necked bottle through the separatory funnel, then add the liquid crystal into the three-necked bottle, control the pH value between 4-6, and the butyl titanate will be hydrolyzed and condensed The reaction forms a liquid crystal-inorganic precursor; in addition, 15g of coconut shell activated carbon is placed in a shelf in a supercritical autoclave with liquid crystal-TiO 2 -Ag precursor 30ml, heated up to 100°C at a heating rate of 2°C / min, and maintained at a pressure of 9MPa for 3h; then cooled the supercritical vessel to room temperature...

Embodiment 3

[0049] Embodiment 3: first dodecyltrimethylammonium bromide (30g) and deionized water (60ml) form liquid crystal, secondly, adopt sol-gel method, 60g purity is the butyl titanate of 99.0%, 2g Silver nitrate and 100g of absolute ethanol were mixed, then added into a three-necked flask, and stirred evenly with a GS122 electronic constant speed stirrer. Mix 20g of absolute ethanol with 4g of distilled water, then slowly drop it into the three-necked bottle through the separatory funnel, then add the liquid crystal into the three-necked bottle, control the pH value between 4-6, and the butyl titanate will be hydrolyzed and condensed The reaction forms a liquid crystal-inorganic precursor; in addition, 15g of coconut shell activated carbon is placed in a shelf in a supercritical autoclave with liquid crystal-TiO 2 -Ag precursor 10ml, heated up to 100°C at a heating rate of 2°C / min, and maintained at a pressure of 9MPa for 4h; then cooled the supercritical vessel to room temperature...

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
particle sizeaaaaaaaaaa
sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a porous-carbon-material-loaded mesoporous (TiO2-Ag) complex, and a preparation method thereof. A supercritical fluid precipitation technology and a liquid crystal template method are used for preparing a mesoporous (TiO2-Ag) / C composite nano-grade material (C: porous carbon) with a loading structure. The method has a prominent feature that: with the supercritical fluid precipitation technology and the liquid crystal template method, the porous-carbon-material-loaded mesoporous (TiO2-Ag) complex with novel structure and good physiochemical structure is prepared. Therefore, a novel approach is provided for the application research of porous-material-loaded mesoporous doped TiO2-type photocatalytic materials. The process provided by the invention is simple, and is easy to be implemented in industrial productions. The prepared porous-material-loaded mesoporous nano-grade complex has large specific surface area and uniform pore size distribution.

Description

technical field [0001] The present invention relates to porous carbon material loaded mesoporous (TiO 2 -Ag) complex and its preparation process, belonging to the field of functional materials. Background technique [0002] TiO 2 Because of its biological and chemical inertness, no photocorrosion and chemical corrosion, and low price, it has been proved to be the most widely used photocatalyst. Due to TiO 2 The electron distribution of is characterized by the presence of a band gap between its conduction and valence bands. When illuminated, as long as the energy of the photon is equal to or exceeds the band gap energy of the semiconductor (hv≥E g ), the electrons can transition from the valence band to the conduction band, thereby generating conduction band electrons and valence band holes. Under the action of the electric field of the space charge layer, the free electrons in the conduction band quickly migrate to the surface of the semiconductor particles and transfer...

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 Patents(China)
IPC IPC(8): B01J23/50B01J35/10C02F1/30
Inventor 李佑稷刘祝祥
Owner JISHOU UNIVERSITY