CN107570136A - A kind of preparation method of discrete state material enhancing block photochemical catalyst - Google Patents
A kind of preparation method of discrete state material enhancing block photochemical catalyst Download PDFInfo
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- CN107570136A CN107570136A CN201710995281.2A CN201710995281A CN107570136A CN 107570136 A CN107570136 A CN 107570136A CN 201710995281 A CN201710995281 A CN 201710995281A CN 107570136 A CN107570136 A CN 107570136A
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Abstract
The invention discloses a kind of preparation method of discrete state material enhancing block photochemical catalyst, including：(1) a certain proportion of foaming agent is mixed with water, stirs, produce substantial amounts of foam.Major catalyst powder, inorganic binder are mixed in proportion, after being well mixed, are added foam and are stirred, obtain component and be sufficiently mixed uniform slurry；(2) discrete state material, terpinol are added in slurry, while add foam, continue to stir, after slurry becomes sticky, slurry is poured into mould, pressed with iron plate, ensure that its filling is closely knit, and bottom is smooth；Mould is put into Muffle furnace at 200 400 DEG C to calcine certain time, mould is taken out after cooling, the block photochemical catalyst in mould is taken out, produces.Preparation method of the present invention is simple, easily realizes, cost is not high；The monolith catalysts raw material of the present invention is easy to get, and calcining at a lower temperature has higher-strength, is advantageous to save the usage amount of major catalyst, realizes the practical application of block photochemical catalyst.
Description
Technical field
The present invention relates to a kind of preparation method of catalyst, more particularly to a kind of discrete state material enhancing block photochemical catalyst
Preparation method.
Background technology
Today's society, environmental pollution turn into global problem urgently to be resolved hurrily, and photocatalysis technology is net in environment due to it
Potential application in change gradually causes extensive concern (R.Quesada-Cabrera, the et al., Applied of scientific circles
Catalysis B,2014,160,582-588.).Photocatalysis technology refers to irradiation of the catalysis material in ultraviolet light or visible ray
Its lower internal electron-hole will separate, in hydroxyl radical free radical OH, superoxide ion caused by catalysis material surface
O2 -, hydroperoxy HO2Isoreactivity group, can be CO by organic matter direct oxidation2And H2The inorganic molecules such as O (J.Yang,
et al.,J.Phys.Chem.B,2005,109,21900-21907.).The key of photocatalysis technology is to prepare active high, spectrum
The photochemical catalyst that response range is wide, cost is cheap.
Photochemical catalyst there is problems in practical application at present：
1., it is necessary to be stirred continuously so that catalyst is contacted with pollutant, otherwise catalyst meeting in light-catalyzed reaction
Natural subsidence is to the bottom of container, and this is difficult to when large-scale sewage disposal is applied；
2. catalyst is difficult to recycle；
3. the photocatalysis sewage treatment technology of stirring/aeration has, ton water process amount is small, floor space is big, sequencing batch operation
Shortcoming.These shortcomings constrain the practical application of photocatalysis technology to a certain extent.
In order to overcome photocatalytic process to need to stir the shortcomings that being difficult to recycle with photochemical catalyst, and prepare block catalysis
Agent is simultaneously fixed in photocatalysis apparatus, and uses ultraviolet light monolith catalysts, and sewage is when catalyst is flowed through
Being degraded to small molecule, (Zhang Li, Xie Hongyong, Sun Zhiguo, a kind of tower photocatalysis apparatus and its catalysis process, Chinese invention are special
Profit, application number：201510733035.0).84772833
Thank and big vast brave etc. be prepared for monolith catalysts (Xie Hongyong, Sun Zhiguo, Guan Chuanjin one kind prepare block light with foaming
The method of catalysis material, Chinese invention patent, the patent No.:ZL201310449930.0.), but in monolith catalysts, play catalysis and make
It is only the outer surface of catalyst, thus the inside of catalyst can use the material more cheap compared with major catalyst.Thank
The block catalysis material of the preparations such as Hong Yong needs higher temperature to calcine, and high-temperature calcination may reduce the activity of catalyst, thus
It is necessary the intensity of raising block, and at a lower temperature can be blocking.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of discrete state material enhancing block photochemical catalyst preparation method,
This method is simple, practical, and the sewage of flowing is pumped into the device through sewage pump, degraded when being contacted with catalyst.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of preparation method of discrete state material enhancing block photochemical catalyst, including：
(1) a certain proportion of foaming agent is mixed with water, stirs, produce substantial amounts of foam；Major catalyst is mixed in proportion
Powder, inorganic binder, after being well mixed, add foam and stir, obtain component and be sufficiently mixed uniform slurry；
(2) discrete state material, terpinol are added in slurry, while add foam, continue to stir, treat that slurry becomes viscous
After thick, slurry is poured into mould, pressed with iron plate, ensures that its filling is closely knit, and bottom is smooth；Mould is put into Muffle furnace
Certain time is calcined, mould is taken out after cooling, the block photochemical catalyst in mould is taken out, produces.
In one embodiment of the invention:Major catalyst powder in the step (1) is titanium oxide, zinc oxide, oxygen
Change any one or more in tin, bismuth oxide.
In one embodiment of the invention:Inorganic binder agent in the step (1) is calcium dihydrogen phosphate, zinc oxide
In any one or more.
In one embodiment of the invention:The mass ratio of the major catalyst powder and inorganic binder is 1:1-5:1.
In one embodiment of the invention:Discrete state material in the step (2) is stone fragment, segment glass fibers
Dimension, any one or more in segment carbon fiber.
In one embodiment of the invention:The quality of discrete state material in the step (2) is that rear block light is made
The 5%-50% of catalyst, and it is put into the inside of slurry in (1).
In one embodiment of the invention：Calcining heat in the step (2) is 200-400 DEG C, and calcination time is
60-240 minutes.
Pass through above-mentioned technical proposal, the beneficial effects of the invention are as follows：
The present invention is simple in construction, easy to use, and preparation method is simple, advantage of lower cost, block photochemical catalyst source
Extensively, prepare simply, can produce in enormous quantities, and be easy to recycle, improve block catalysis at a lower temperature using this method
The intensity of agent, it is expected to realize the scale processing of photocatalysis technology degraded sewage.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is to prepare monolith catalysts flow chart in the embodiment of the present invention 1；
Fig. 2 is the size of the monolith catalysts prepared in the embodiment of the present invention 2；
Fig. 3 is the photo of the monolith catalysts largely prepared in the embodiment of the present invention 2.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1
(1) 20mL foaming agent is mixed with 10mL water, stirs, produce substantial amounts of foam；Weigh 10g major catalyst powder
(nano-TiO2Powder), 5g inorganic binders (ZnO), by the two it is well mixed after, add foam and simultaneously stir 10min, obtain group
Divide and be sufficiently mixed uniform slurry；(2) 3g discrete state materials (stone fragment), 5mL terpinols are added in slurry, added simultaneously
Foam, continue to stir 20min, after slurry becomes sticky, slurry is poured into mould, pressed with iron plate, ensures that its filling is close
It is real, and bottom is smooth.It is a height of 10 centimetres in mould, a diameter of 12 centimetres of aperture；Mould is put into Muffle furnace in 200-400
Calcined 100 minutes at DEG C, mould is taken out after cooling, taken out the block catalysis material in mould, produce；Fig. 1 is real for the present invention
Apply and monolith catalysts flow chart is prepared in example 1.
Embodiment 2
(1) 20mL foaming agent is mixed with 15mL water, stirs, produce substantial amounts of foam；Weigh 10g major catalyst powder
(nano SnO2Powder), 5g inorganic binders (calcium dihydrogen phosphate), by the two it is well mixed after, add foam and simultaneously stir 20min,
Obtain component and be sufficiently mixed uniform slurry；(2) 4g discrete state materials (segment glass fibre), 4mL terpinols are added to slurry
In material, while foam is added, continues to stir 30min, after slurry becomes sticky, slurry is poured into mould, pressed with iron plate,
Ensure that its filling is closely knit, and bottom is smooth；It is a height of 15 centimetres in mould, a diameter of 15 centimetres of aperture；Mould is put into horse
Not stove is calcined certain time at 200-450 DEG C, and mould is taken out after cooling, is taken out the block catalysis material in mould, is produced；
Fig. 2 is the size of the monolith catalysts prepared in the embodiment of the present invention 2；Fig. 3 is the block largely prepared in the embodiment of the present invention 2
The photo of catalyst.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
- A kind of 1. preparation method of discrete state material enhancing block photochemical catalyst, it is characterised in that including：(1) a certain proportion of foaming agent is mixed with water, stirs, produce substantial amounts of foam；Mix in proportion major catalyst powder, Inorganic binder, after being well mixed, add foam and stir, obtain component and be sufficiently mixed uniform slurry；(2) discrete state material, terpinol are added in slurry, while add foam, continue to stir, treat that slurry becomes sticky Afterwards, slurry is poured into mould, pressed with iron plate, ensure that its filling is closely knit, and bottom is smooth；Mould is put into Muffle furnace and forged Certain time is burnt, mould is taken out after cooling, the block photochemical catalyst in mould is taken out, produces.
- A kind of 2. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that: Major catalyst powder in the step (1) is any one or more in titanium oxide, zinc oxide, tin oxide, bismuth oxide.
- A kind of 3. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that: Inorganic binder agent in the step (1) is any one or more in calcium dihydrogen phosphate, zinc oxide.
- A kind of 4. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that: The mass ratio of the major catalyst powder and inorganic binder is 1:1-5:1.
- A kind of 5. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that: Discrete state material in the step (2) is any one or more in stone fragment, segment glass fibre, segment carbon fiber.
- A kind of 6. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that: The quality of discrete state material in the step (2) is that the 5%-50% of rear block photochemical catalyst is made, and is put into slurry in (1) Inside.
- A kind of 7. preparation method of discrete state material enhancing block photochemical catalyst according to claim 1, it is characterised in that： Calcining heat in the step (2) is 200-400 DEG C, and calcination time is 60-240 minutes.
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| WO2010043511A1 (en) * | 2008-10-14 | 2010-04-22 | Henkel Ag & Co. Kgaa | Binder composition which can be foamed and use thereof |
| CN102451671A (en) * | 2010-10-29 | 2012-05-16 | 中国科学院金属研究所 | Complex-phase block-shaped macroporous titanium dioxide material and preparation method thereof |
| CN103447099A (en) * | 2013-09-27 | 2013-12-18 | 上海第二工业大学 | Method for manufacturing block photocatalytic material by using foaming method |
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| CN106927770A (en) * | 2017-04-12 | 2017-07-07 | 重庆大学 | A kind of alkali-activated slag foamed concrete sound-absorbing material and preparation method thereof |
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2017
- 2017-10-23 CN CN201710995281.2A patent/CN107570136A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010043511A1 (en) * | 2008-10-14 | 2010-04-22 | Henkel Ag & Co. Kgaa | Binder composition which can be foamed and use thereof |
| CN102451671A (en) * | 2010-10-29 | 2012-05-16 | 中国科学院金属研究所 | Complex-phase block-shaped macroporous titanium dioxide material and preparation method thereof |
| CN103447099A (en) * | 2013-09-27 | 2013-12-18 | 上海第二工业大学 | Method for manufacturing block photocatalytic material by using foaming method |
| CN105887150A (en) * | 2014-10-11 | 2016-08-24 | 重庆巴王环保新材料有限公司 | Preparation method of metalized short carbon fiber material in sliced and netted shape |
| CN106824298A (en) * | 2017-02-09 | 2017-06-13 | 福建帕特纳环境产品有限公司 | A kind of honeycomb type thin-walled SCR denitration peculiar to vessel and preparation method thereof |
| CN106927770A (en) * | 2017-04-12 | 2017-07-07 | 重庆大学 | A kind of alkali-activated slag foamed concrete sound-absorbing material and preparation method thereof |
Non-Patent Citations (1)
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| 张利等: "可见光响应的块体TiO2/GO光催化剂的制备及性能研究", 《上海第二工业大学学报》 * |
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