Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultra-dispersed photocatalyst and preparation method and application thereof

A photocatalyst and ultra-dispersion technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc. Problems such as high cost, achieve the effect of large-scale production and canning, low production cost and convenient operation

Inactive Publication Date: 2016-08-10
天津茏怿投资有限公司
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses the catalytic oxidation reaction of the fuel under the magnetic environment to increase the burning rate, and the photocatalyst catalyst needs to be irradiated by an additional light source to play a role. All kinds of burners, boiler combustion systems and automobile internal combustion engines need to be modified, the cost of modification is very high, and the structure of the combustion device becomes more complicated
However, traditional photocatalysts are difficult to disperse in alcohol solvents. It is even more difficult to disperse in petroleum, diesel and diesel / methanol binary systems, and it is difficult to play a catalytic role.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The ultra-dispersed photocatalyst of the present embodiment comprises the following components by weight:

[0051] Alcohol solvent 90g

[0052] Titanium dioxide 2g

[0053] Dispersant 10g

[0054] Due to the large surface energy of nano-titanium dioxide, it is easy to agglomerate, and the particle sizes of the agglomerated particles are all different and within a certain range. The particles formed by the agglomeration of titanium dioxide in this embodiment have a primary particle size of 10-25 nm and a secondary particle size of less than 100 nm.

Embodiment 2

[0056] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The ultra-dispersed photocatalyst of the present embodiment comprises the following components by weight:

[0057] Alcohol solvent 110g

[0058] Titanium dioxide 6g

[0059] Dispersant 14g

[0060] The primary particle size of titanium dioxide is 30-50nm, and the secondary particle size is less than 90nm.

Embodiment 3

[0062] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The ultra-dispersed photocatalyst of the present embodiment comprises the following components by weight:

[0063] Alcohol solvent 100g

[0064] Titanium dioxide 4g

[0065] Dispersant 12g

[0066] The primary particle size of titanium dioxide is 25-30nm, and the secondary particle size is less than 80nm.

[0067] When the initial temperature is 800k, the catalytic effects of embodiment 1, implementation 2 and embodiment 3 on diesel and methanol binary fuel system are shown in Table 1:

[0068] Table 1

[0069]

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides an ultra-dispersed photocatalyst which is prepared from 90-110 parts of an alcohol solvent, 2-6 parts of titanium dioxide and 10-14 parts of a dispersing agent. The ultra-dispersed photocatalyst is a semi-transparent solution, the primary particle size of titanium dioxide is 10-50 nm, the secondary particle size of titanium dioxide is 100 nm, and the ultra-dispersed photocatalyst is safe, free of toxin and remarkable in catalytic effect. The ultra-dispersed photocatalyst mainly has the advantages that firstly, a photocatalysis response in the ultraviolet and visible light full-spectrum range is achieved; secondly, the photocatalyst is suitable for combustion catalysis of fuel; thirdly, the photocatalyst can remarkably reduce emission and is safe and environmentally friendly. A preparation method of the ultra-dispersed photocatalyst has the advantages that high dispersing of nano titanium dioxide in the alcohol solvent is achieved; part of titanium ion self-doping features are obtained, the forbidden band width is reduced, and the photocatalysis response in the ultraviolet and visible light full-spectrum range is achieved; cost is reduced. Application of the ultra-dispersed photocatalyst is not limited to indoor environment pollution, sterilization and deodorizing, and the ultra-dispersed photocatalyst can be directly applied to combustion catalysis of fuel, particularly combustion catalysis of fuel of automobile internal-combustion engines.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a super-dispersed catalyst of a modified titanium dioxide solution and a preparation method and application thereof. Background technique [0002] Substituting methanol for part of the fuel used in internal combustion engines has become an important way to reduce oil consumption. The diesel / methanol binary fuel system can increase the total efficiency of fuel combustion by more than 20%. Methanol makes diesel engines more energy-efficient and emission-reducing, making it one of the most promising alternative fuels for petroleum. However, in the process of burning and oxidizing binary fuels, due to pressure and temperature, there are still some incompletely oxidized and decomposed hydrocarbons. How to improve the combustion efficiency of fuel and promote the oxidation of combustion products has become the focus of researchers. [0003] At present, researchers at home and...

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): B01J31/38F02M25/00
CPCF02M25/00B01J31/0275B01J31/38B01J35/39
Inventor 蔡宏敏汪远昊崔辉然董翔
Owner 天津茏怿投资有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products