CN104437547A - Novel efficient multi-component photocatalyst material - Google Patents
Novel efficient multi-component photocatalyst material Download PDFInfo
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- CN104437547A CN104437547A CN201410775000.9A CN201410775000A CN104437547A CN 104437547 A CN104437547 A CN 104437547A CN 201410775000 A CN201410775000 A CN 201410775000A CN 104437547 A CN104437547 A CN 104437547A
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- photocatalyst material
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- nickel
- titanium dioxide
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Abstract
The invention relates to a novel efficient multi-component photocatalyst material. The photocatalyst material comprises the following raw materials in parts by weight: 45-50 parts of titanium dioxide, 25-30 parts of cerium dioxide, 2-5 parts of silicon dioxide, 10-16 parts of silver and 5-8 parts of nickel, wherein the raw materials are mixtures of nanoscale particles of which the sizes are less than 30 nanometers. Various particle components of the photocatalyst material are mixed by stirring and ultrasonic vibration; the mixed powder is individually used and is adhered to the surface of a base material by virtue of a spraying process or blended into a coating by virtue of an organic adhesive and an inorganic adhesive as a binder and is applied to the surface of the base material through spraying, coating or rolling. The novel efficient multi-component photocatalyst material disclosed by the invention has the advantages of high catalytic activity, high utilization rate of solar energy, strong oxidation capability and good stability, the photocatalytic rate of the photocatalyst can reach about 40% and the light absorption wavelength is the visible region.
Description
Technical field
The present invention relates to light, especially relate to a kind of multicomponent photocatalyst material as catalyst.
Background technology
In recent years, because the catalytic action of photocatalyst is progressively familiar with by people, it is also more and more wider in the range of application of field of Environment Protection, and extended by spectral range such as single ultraviolet lighting directive infrared lights, catalytic efficiency is improving constantly.Current in the research of photocatalyst material China compared with developed countries also have certain gap, therefore, a kind of efficient multicomponent photocatalyst material of research and development, to improving photocatalysis efficiency, make light absorption wavelength red shift to visible region, increasing effective utilization of luminous energy is an urgent demand of current photocatalyst material.
Summary of the invention
The object of the invention is to propose a kind ofly have that catalytic activity is high, oxidability is strong, the new and effective multicomponent photocatalyst material of good stability
In order to realize object of the present invention, propose a kind of new and effective multicomponent photocatalyst material, described photocatalyst material is composed as follows by weight:
Titanium dioxide 45-50
Ceria 25-30
Silica 2-5
Silver 10-16
Nickel 5-8.
Described raw material is nano-scale particle mixture, and granularity is less than 30 nanometers.
According to embodiments of the invention 1, described photocatalyst material is specifically composed as follows by weight:
Titanium dioxide 45
Ceria 30
Silica 3
Silver 15
Nickel 7.
According to embodiments of the invention 2, described photocatalyst material is specifically composed as follows by weight:
Titanium dioxide: 50
Ceria: 25
Silica: 4
Silver: 16
Nickel: 5.
The present invention also proposes the using method of multicomponent photocatalyst material, and the hybrid mode of the various particulate components of described photocatalyst material stirs to add ultrasonic wave vibration mixing; Mixed-powder is used alone, and is bonded in substrate surface with sprinkling powder process; Or use organic gel and inorganic glue as bonding agent mixing become coating, with spraying, rinse painting or pressure roller at substrate surface.
It is high that new and effective multicomponent photocatalyst material of the present invention has catalytic activity, and light absorption wavelength is visible region, and the utilization rate of luminous energy is high.Catalytic activity is high, oxidability is strong, good stability, and the photocatalysis rate of photocatalyst can reach about 40%.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, the present invention is described in more detail.
The present invention adopts titanium dioxide, ceria, silica, silver and nickel as main photocatalyst material; the nano particle of one above-mentioned material is mixed; wherein, TiO2 is nontoxic with it, catalytic activity is high, oxidability is strong, good stability and be used as light-catalysed semiconductor catalyst.But it also has the limitation of self: energy gap is about 312 eV, just can need excite under (closely) ultraviolet light; And photo-generated carrier very easily simple composite occurs, catalytic activity is not high.Cerium very easily absorb photons becomes tetravalence from trivalent, and the simple composite that quadrivalent cerium ion can not only effectively suppress electronics-hole right under optical excitation, improve photocatalysis efficiency, the light absorption wavelength red shift of TiO2 also may be made to visible region, increase the effective utilization to luminous energy.Silica is extraordinary optical catalyst carrier, it demonstrates exceptional function in magnetic, catalytic, light absorption, thermal resistance and fusing point etc. compared with conventional material, improving powder properties etc. as anti-caking agent, is that to prepare photocatalyst dusty material indispensable.Silver and nickel are fine catalyst, be oxidation catalyst and electronic shell to other photocatalysts, play a part to get twice the result with half the effort in this component.After tested, the photocatalysis rate of this photocatalyst can reach about 40%.
thisthe relevant preparation technology of photocatalyst material is mainly:
1, the hybrid mode of various particulate component stirs to add ultrasonic wave vibration mixing;
2, mixed-powder can be used alone, also can use organic gel and inorganic glue as bonding agent mixing become coating;
3, powder can use sprinkling powder process, is bonded in substrate surface;
4, preparation coating can with spraying, rinse painting or pressure roller at substrate surface.
embodiment 1
Use the air purifier of photocatalyst material of the present invention to Shoudu Iron and Steel Co smelting furnace smoke evacuation regulation effect contrast table 1:
Photocatalyst material composition: titanium dioxide, ceria, silica, silver and nickel.
Raw material insulation request: above-mentioned raw materials is nanoscale, generally, granulometric range is less than 30 nanometers.
Mixing formula ratio by weight:
Titanium dioxide 45
Ceria 30
Silica 3
Silver 15
Nickel 7.
Table 1, Mramc329 detector test item and testing result contrast table.
Data are the detection mean value of 10 minutes.
PM2. 5 and TVOC standard value with reference to " ambient air quality " GB/T18883-2002:
One, the standard value of PM2.5
Air quality grade 24 hours PM2.5 mean value standard values
Excellent 0 one 35 micrograms (ug)/every cube
Good 35-75 microgram (ug)/every cube
Slight pollution 75-115 microgram (ug)/every cube
Intermediate pollution 115-150 microgram (ug)/every cube
Serious pollution 150-250 microgram (ug)/every cube
Severe contamination 250 and with native microgram (ug)/every cube
Two, TVOC standard value (unit mg/m
3)
Total volatile organism TVOC standard value is: 0.60
embodiment 2
Use the air purifier of photocatalyst material of the present invention to the indoor regulation effect contrast table 2 of Shoudu Iron and Steel Co smelting furnace:
Main component: the above raw material of titanium dioxide, ceria, silica, silver, nickel is nanoscale, and granulometric range is less than 30 nanometers.
Formula rate: by weight mixing.
Titanium dioxide: 50
Ceria: 25
Silica: 3
Silver: 15
Nickel: 7
Table 2, detection data report list
Above-described specific embodiment; further detailed description has been carried out to object of the present invention, technical scheme and beneficial effect; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a new and effective multicomponent photocatalyst material, is characterized in that, described photocatalyst material is composed as follows by weight:
Titanium dioxide 45-50
Ceria 25-30
Silica 2-5
Silver 10-16
Nickel 5-8.
2. photocatalyst material according to claim 1, is characterized in that, described raw material is nano-scale particle mixture, and granularity is less than 30 nanometers.
3. photocatalyst material according to claim 1 and 2, is characterized in that, described photocatalyst material is composed as follows by weight:
Titanium dioxide 45
Ceria 30
Silica 3
Silver 15
Nickel 7.
4. photocatalyst material according to claim 1 and 2, is characterized in that, described photocatalyst material is composed as follows by weight:
Titanium dioxide: 50
Ceria: 25
Silica: 4
Silver: 16
Nickel: 5.
5. as the using method of one of them said multicomponent photocatalyst material of claim 1-4, it is characterized in that, the hybrid mode of the various particulate components of described photocatalyst material stirs to add ultrasonic wave vibration mixing; Mixed-powder is used alone, and is bonded in substrate surface with sprinkling powder process; Or use organic gel and inorganic glue as bonding agent mixing become coating, with spraying, rinse painting or pressure roller at substrate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775000.9A CN104437547A (en) | 2014-12-16 | 2014-12-16 | Novel efficient multi-component photocatalyst material |
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| CN201410775000.9A CN104437547A (en) | 2014-12-16 | 2014-12-16 | Novel efficient multi-component photocatalyst material |
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| CN104437547A true CN104437547A (en) | 2015-03-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037553A (en) * | 2007-02-13 | 2007-09-19 | 云南大学 | Preparation and application method of optical catalysed environment protection type coating |
| CN101517013A (en) * | 2006-08-24 | 2009-08-26 | 美礼联无机化工公司 | Nanocomposite particle and process of preparing the same |
| CN101537201A (en) * | 2009-04-27 | 2009-09-23 | 贺燕婷 | Multieffect nano air purificant and preparation method thereof |
| CN101563150A (en) * | 2006-12-22 | 2009-10-21 | 3M创新有限公司 | Photocatalytic coating |
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2014
- 2014-12-16 CN CN201410775000.9A patent/CN104437547A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101517013A (en) * | 2006-08-24 | 2009-08-26 | 美礼联无机化工公司 | Nanocomposite particle and process of preparing the same |
| CN101563150A (en) * | 2006-12-22 | 2009-10-21 | 3M创新有限公司 | Photocatalytic coating |
| CN101037553A (en) * | 2007-02-13 | 2007-09-19 | 云南大学 | Preparation and application method of optical catalysed environment protection type coating |
| CN101537201A (en) * | 2009-04-27 | 2009-09-23 | 贺燕婷 | Multieffect nano air purificant and preparation method thereof |
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Application publication date: 20150325 |