CN109876791A - A kind of ozone oxidation catalyst and preparation method thereof - Google Patents
A kind of ozone oxidation catalyst and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of ozone oxidation catalysts and preparation method thereof, including (1) diluent is added in metal salt, respective metal salting liquid is made, and acidulant is then added, stirs to get precursor solution；(2) to TiO2(1) is introduced in presoma forms presoma complex sol；(3) active carbon is added in active metal salt solution, mashing obtains mixed serum, and the presoma complex sol for introducing (2) later mixes, and obtained mixture is aged, filtered, dried；(4) dried object of step (3) is milled into powder, and gelatinizing agent extruded moulding is added and obtains molded catalyst bodies after dry, roasting.Ozone oxidation catalyst provided by the invention is prepared by aforementioned present invention method, is with TiO2Doping active metal is core, using the active carbon of supported active metals as the composite catalyst of shell.Catalyst prepared by the present invention has many advantages, such as that catalytic performance is good, wear-resisting property is strong, stability in use is good.
Description
Technical field
The invention belongs to field of water pollution control, and in particular to a kind of ozone oxidation catalyst and preparation method thereof.
Background technique
Advanced oxidation processes are one of the main methods of advanced treatment of wastewater difficult to degrade, specifically include that photocatalytic oxidation, electricity
Catalytic oxidation, Fenton oxidation method, ozone oxidation and catalytic ozonation method etc..Wherein Ozonation has and is not limited by light source
The advantages such as system, insensitive to sewage hardness, without secondary pollution, become the preferred method of advanced treatment of wastewater difficult to degrade.However, smelly
In the independent oxidation process of oxygen, ozone mainly with organic matter occur direct oxidation react, exist to organic pollutant decompose be not thorough,
The problems such as mineralization ability is poor, ozone utilization rate is low.Catalytic ozonation is to solve advanced oxidation that is above-mentioned insufficient and developing
Further treatment technique can divide homogeneous catalytic ozonation and heterogeneous catalytic ozonation according to the different shape of catalyst, with
Homogeneous technology is compared, and the catalytic activity of non-homogeneous techniques is higher, and to be easily recycled processing, cost of sewage disposal low for catalyst, because
And become the hot spot of catalytic ozonation research field concern.
Heterogeneous catalysis is mainly with aluminium oxide, active carbon, titanium dioxide etc. for carrier, with transition metal or noble metal
Make the catalyst of active component.Wherein for aluminium oxide because having good chemical stability, Kong Rong great has certain acidity, hole
The advantages that structure distribution is concentrated, is widely applied, but amorphous alumina auto-catalytic activity is low, the absorption to organic matter
It is relatively small with conversion capability.Active carbon is the black made of carbonaceous material, hole prosperity, large specific surface area, adsorption capacity
Strong a kind of microcrystalline carbon, property are stablized, and acidproof, alkaline-resisting, heat-resisting, not soluble in water or organic solvent, Yi Zaisheng is a kind of environment
Friendly adsorbent is widely used in the fields such as water process, food, medicine, carrier.TiO2It is a kind of semiconductor material, has
The features such as chemical stability is good, nontoxic, cheap, high temperature resistant is sintered, while some researches show that TiO2With catalysis ozone oxygen
Change the ability of organic matter.
At present about the research of heterogeneous catalysis mostly based on aluminium oxide, active carbon.As patent CN102319557A is public
A kind of active alumina/active carbon composite material and preparation method thereof has been opened, has been by waste aluminum sludge, active carbon, viscous
It is multiple that knot agent process mixes, is granulated, is aging, form, dry, being sintered, rinsing, activated alumina/active carbon is made in drying and other steps
Condensation material.Patent CN101890336A discloses a kind of preparation method of activated alumina composite reactive Carbon Materials, with hydroxide
Aluminium, active carbon and binder are raw material, through mixing, granulation, it is aging, form, dry, be sintered, rinse, drying and other steps, obtain
The physical mixture of aluminium oxide and active carbon.Wherein, aluminium oxide mainly improves support strength, and provides certain specific surface area,
Itself is to ozone and catalytically inactive.
(the Catalytic ozonation of oxalic acid in an aqueous TiO such as Beltr á n2
Slurry reactor [J] Applied Catalysis B:Environmental, 2002,39 (3): 221-231) hair
In the catalytic ozonation reaction of present oxalic acid, TiO2With good catalytic activity, propose that ozone and organic matter are distinguished first
It is adsorbed on catalyst surface, the catalytic mechanism then reacted again.(the Degradation of nitrobenzene such as Yang
by nano-TiO2 catalyzed ozonation[J]. Journal of Molecular Catalysis A:
Chemical, 2007,267 (1): 41-48) TiO for nano shape is found under study for action2Catalyst, rutile crystal type
Activity to be much better than anatase crystal, while it has also been found that organic matter in TiO2The absorption on surface is O3 catalytic oxidation reaction
Significant process.Therefore, TiO is improved using effective means2It is that exploitation is new and effective to the adsorption capacity and catalytic activity of organic matter
Ozone oxidation catalyst critical issue.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of ozone oxidation catalysts and preparation method thereof.It is prepared
Catalyst have many advantages, such as that catalytic performance is good, wear-resisting property is strong, stability in use is good.
Ozone oxidation catalyst provided by the invention is with TiO2Doping active metal is core, with supported active metals
Active carbon is the composite catalyst of shell；On the basis of the weight of catalyst, TiO2Weight ratio be 30%-80%, preferably 40%-
70%；The weight ratio of active carbon is 10%-60%, preferably 15%-45%；TiO2The active metal of doping is transition metal or rare earth gold
Belong to, the weight ratio of blended metal oxide is 1%-10%；Activated carbon supported active metal is in transition metal or rare earth metal
At least one, the weight ratio of supported active metals oxide is 1%-10%.
In catalyst of the present invention, the TiO2To be anatase structured, preferably nanoscale TiO2。
In catalyst of the present invention, the active carbon selects all kinds of wood activated charcoals or coaly activated carbon, generally powder
Shape, granularity are 200-400 mesh, specific surface area 600-3000m2/ g, Kong Rongwei 0.5-1.8cm3/ g, average pore radius 1-
10nm。
In catalyst of the present invention, the transition metal is one or more of vanadium, chromium, manganese, iron, cobalt and copper etc., excellent
Select at least one of iron, manganese.The rare earth metal is one or more of cerium, lanthanum, rubidium etc., preferably cerium.
In the present invention, the catalyst can according to need molding, and the granularity of formed body is generally 0.5-8.0mm.It urges
The specific surface area of agent formed body is 200-500m2/ g, Kong Rongwei 0.1-0.5cm3/ g, rate of wear≤4.5wt%, side pressure strength are
50-150N/cm。
The present invention also provides the preparation methods of above-mentioned ozone oxidation catalyst, specifically includes the following steps:
(1) diluent is added in metal salt and respective metal salting liquid is made, acidulant is then added, it is molten to stir to get precursor
Liquid；
(2) to TiO2(1) is introduced in presoma forms presoma complex sol；
(3) active carbon is added in active metal salt solution, mashing obtains mixed serum, and the presoma for introducing (2) later is multiple
It closes colloidal sol to mix, obtained mixture is aged, filtered, dried；
(4) dried object of step (3) is milled into powder, and gelatinizing agent extruded moulding is added and obtains shaping of catalyst after dry, roasting
Body.
In the method for the present invention, metal described in step (1) be rare earth metal or transition metal, wherein transition metal be vanadium,
At least one of one or more of chromium, manganese, iron, cobalt and copper etc., preferably iron, manganese；Rare earth metal is in cerium, lanthanum, rubidium etc.
One or more, preferred cerium.The metal salt is mainly the nitrate of above-mentioned metal, chlorate etc..
In the method for the present invention, diluent described in step (1) is deionized water or alcoholic solvent, and the alcoholic solvent is one
One or more of first alcohol, dihydric alcohol etc., such as methanol, ethyl alcohol, propyl alcohol, isopropanol, ethylene glycol, preferably deionized water, second
At least one of alcohol.The additional amount of diluent is so that the mass concentration of metal salt solution is 5%-20%.
In the method for the present invention, acidulant described in step (1) is organic acid reagent, such as acetic acid, propionic acid, regulating step
(1) pH value of metal salt solution is 3-5.
In the method for the present invention, TiO described in step (2)2Presoma, predominantly titanium tetraisopropylate, butyl titanate, metatitanic acid
One or more of second rouge, tetraethyl titanate etc..TiO2The mass ratio of presoma and step (1) metal salt solution is 1:2-1:
3。
In the method for the present invention, active carbon described in step (3) can select all kinds of wood activated charcoals or coaly activated carbon, and one
As be powdered active carbon, granularity be 200-400 mesh, specific surface area 600-3000m2/ g, Kong Rongwei 0.5-1.8cm3/ g,
Average pore radius is 1-10nm.
In the method for the present invention, active metal salt solution described in step (3) be rare earth metal or transition metal nitrate,
Chlorination salting liquid etc., wherein transition metal is one or more of vanadium, chromium, manganese, iron, cobalt and copper etc., preferably iron, in manganese extremely
Few one kind；Rare earth metal is one or more of cerium, lanthanum, rubidium etc., preferably cerium.The mass concentration of active metal salt solution is
5%-20%。
In the method for the present invention, active carbon is added in active metal salt solution step (3), the active carbon and activity gold
The mass ratio for belonging to salting liquid is 1:2-1:3.
In the method for the present invention, the mashing of active carbon described in step (3) is carried out using conventional method, it is preferable that water, low is added
One of carbon alcohol etc. or it is a variety of be beaten, wherein low-carbon alcohols be carbon atom number 1-4 monohydric alcohol, dihydric alcohol etc., as methanol,
Ethyl alcohol, ethylene glycol, propyl alcohol, isopropanol etc., additional amount are the 20%-50% of quality of activated carbon.
In the method for the present invention, after step (3) mashing, the presoma complex sol of introducing and the mass ratio of active carbon are 2:1-
5:1.Obtained mixed serum is first aged, and is generally carried out at room temperature, and temperature is 15-45 DEG C, digestion time 1-8h.Filtering is adopted
With filter type commonly used in the art, filter cloth mesh number is greater than 300.The drying temperature is 60-130 DEG C, and drying time is
2-20h。
In the method for the present invention, step (4) the dried object grinds, powder diameter is 100-200 mesh.The gelatinizing agent one
As be conventional using gelatinizing agent, such as starch, polyacrylamide, gelatinizing agent additional amount is the 5%-20% of powder quality.It is described dry
Dry temperature is 60-130 DEG C, drying time 2-20h.The roasting carries out under atmosphere of inert gases, maturing temperature 350-700
DEG C, calcining time 2-6h.
In the method for the present invention, step (4) can according to need molding, and formed body can according to need the size of determining granularity
And shape, granularity are generally 0.5-8.0mm.
The present invention is in catalyst preparation process by TiO2Presoma complex sol is introduced to active carbon slurries, forms activity
Charcoal wraps up TiO2Structure type, i.e., with TiO2Doping active metal is core, using the active carbon of supported active metals as the compound of shell
Material, and molded catalyst bodies are made through molding, drying, roasting process.The catalyst can fill in O3 catalytic oxidation reaction
Divide Adsorption of Organic to catalyst surface using the strong feature of active carbon large specific surface area, adsorption capacity, utilizes TiO2
Ozone is decomposed into hydroxyl radical free radical by the catalytic activity for adulterating active metal and activated carbon surface functional group and carried metal etc.,
The free radical and organic pollutant of generation carry out oxidation reaction, realize the efficient degradation of organic matter.With TiO2Adulterate active metal
For core, TiO can make full use of by the composite construction of shell of the active carbon of supported active metals2Skeleton function, promoted activity
The structural strength of charcoal outer layer makes catalyst have good mechanical strength and chemical property, and preparation method is simple, is suitble to industry
Amplification production.
Specific embodiment
Method and effect of the invention are further illustrated below by embodiment.Embodiment is with technical solution of the present invention
Premised under implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is unlimited
In following embodiments.
Experimental method in following embodiment is unless otherwise specified conventional method in that art.Institute in following embodiments
Experimental material is commercially available from routine biochemistry reagent shop unless otherwise specified.
Embodiment 1
It will be added in 95g deionized water in 5g cerous nitrate, dissolution be sufficiently stirred, acetic acid is then added, control pH value is 3, is obtained
Solution a.100g solution a is slowly added in the butyl titanate that 50g concentration is 98%, it is compound molten that stirring 10min obtains precursor
Glue b.Taking granularity is 200 mesh, specific surface area 600m2/ g, Kong Rongwei 0.5cm3/ g, average pore radius are the powder activity of 1nm
Charcoal is added the cerous nitrate solution that mass concentration is 5% and is beaten, and the mass ratio of active carbon and active metal salt solution is 1:2, is obtained
Mixed serum c.Then presoma complex sol b, the mass ratio of presoma complex sol and active carbon are introduced in mixed serum c
For 2:1, mixture d is obtained.Mixture d room temperature is aged 1 hour, and filter residue is obtained by filtration, 2 hours dry at 130 DEG C, is done
Dry object e.Dried object is milled into powder, starch is added in 200 mesh of mesh number, and additional amount is the 5% of powder quality, is made using banded extruder
Diameter is the clover moulding material f of 2.5mm, after 130 DEG C 2 hours dry, roast 6 hours for 350 DEG C, obtains under nitrogen atmosphere
To molded catalyst bodies g1, composition is shown in Table 1.
Embodiment 2
20g cerous nitrate is added in 80g deionized water, dissolution is sufficiently stirred, acetic acid is then added, control pH value is 5, is obtained molten
Liquid a.100g solution a is slowly added in the butyl titanate that 35g concentration is 98%, stirring 10min obtains precursor complex sol
b.Taking granularity is 400 mesh, specific surface area 3000m2/ g, Kong Rongwei 1.8cm3/ g, average pore radius are the powder activity of 10nm
Charcoal is added the cerous nitrate solution that mass concentration is 20% and is beaten, and the mass ratio of active carbon and active metal salt solution is 1:3, is obtained
Mixed serum c.Then presoma complex sol b, the mass ratio of presoma complex sol and active carbon are introduced in mixed serum c
For 5:1, mixture d is obtained.Mixture d room temperature is aged 8 hours, and filter residue is obtained by filtration, 20 hours dry at 60 DEG C, is done
Dry object e.Dried object is milled into powder, starch is added in 400 mesh of mesh number, and additional amount is the 20% of powder quality, utilizes extrusion mechanism
The clover moulding material f for being 2.5 mm at diameter, after 60 DEG C 20 hours dry, 700 DEG C of roastings 2 are small under nitrogen atmosphere
When, molded catalyst bodies g2 is obtained, composition is shown in Table 1.
Embodiment 3
10g cerous nitrate is added in 90g deionized water, dissolution is sufficiently stirred, acetic acid is then added, control pH value is 4, is obtained molten
Liquid a.100g solution a is slowly added in the butyl titanate that 40g concentration is 98%, stirring 10min obtains precursor complex sol
b.Taking granularity is 200 mesh, specific surface area 1500m2/ g, Kong Rongwei 1.0cm3/ g, average pore radius are the powder activity of 5nm
Charcoal is added the cerous nitrate solution that mass concentration is 10% and is beaten, and the mass ratio of active carbon and active metal salt solution is 1:2.5, is obtained
To mixed serum c.Then presoma complex sol b, the quality of presoma complex sol and active carbon are introduced in mixed serum c
Than obtaining mixture d for 3:1.Mixture d room temperature is aged 4 hours, and filter residue is obtained by filtration, 4 hours dry at 105 DEG C, is obtained
Dried object e.Dried object is milled into powder, starch is added in 300 mesh of mesh number, and additional amount is the 20% of powder quality, utilizes banded extruder
The clover moulding material f that diameter is 2.5 mm is made, after 105 DEG C 4 hours dry, 500 DEG C of roastings 4 are small under nitrogen atmosphere
When, molded catalyst bodies g3 is obtained, composition is shown in Table 1.
Embodiment 4
With embodiment 1, difference is: active metal uses vanadium metal.Molded catalyst bodies g4 is obtained, composition is shown in Table 1.
Embodiment 5
With embodiment 1, difference is: active metal uses metallic iron.Molded catalyst bodies g5 is obtained, composition is shown in Table 1.
Embodiment 6
With embodiment 1, difference is: active metal uses metallic copper.Molded catalyst bodies g6 is obtained, composition is shown in Table 1.
Embodiment 7
With embodiment 1, difference is: active metal uses manganese metal.Molded catalyst bodies g7 is obtained, composition is shown in Table 1.
Embodiment 8
With embodiment 1, difference is: active metal uses lanthanoid metal.Molded catalyst bodies g8 is obtained, composition is shown in Table 1.
Embodiment 9
With embodiment 1, difference is: diluent uses ethyl alcohol.Molded catalyst bodies g9 is obtained, composition is shown in Table 1.
Embodiment 10
With embodiment 1, difference is: diluent uses ethylene glycol.Molded catalyst bodies g10 is obtained, composition is shown in Table 1.
Embodiment 11
With embodiment 1, difference is: diluent uses isopropanol.Molded catalyst bodies g11 is obtained, composition is shown in Table 1.
Embodiment 12
With embodiment 1, difference is: acidulant uses formic acid.Molded catalyst bodies g12 is obtained, composition is shown in Table 1.
Embodiment 13
With embodiment 1, difference is: TiO2Presoma uses titanium tetraisopropylate.Molded catalyst bodies g13 is obtained, group prejudice
Table 1.
Embodiment 14
With embodiment 1, difference is: TiO2Presoma uses tetraethyl titanate.Molded catalyst bodies g14 is obtained, composition is shown in Table
1。
Embodiment 15
With embodiment 1, difference is: water being added in pulping process.Molded catalyst bodies g15 is obtained, composition is shown in Table 1.
Embodiment 16
With embodiment 1, difference is: isopropanol being added in pulping process.Molded catalyst bodies g16 is obtained, composition is shown in Table 1.
Comparative example 1
With embodiment 1, difference is: directlying adopt TiO2Presoma is not prepared into presoma complex sol, that is, undope activity
Metal.Molded catalyst bodies ga is obtained, composition is shown in Table 1.
Comparative example 2
With embodiment 1, difference is: replacing TiO using alumina precursor2Presoma.Obtain molded catalyst bodies gb, group
At being shown in Table 1.
Comparative example 3
With embodiment 1, difference is: with TiO2, active carbon be combination carrier, supported active metals component do not form activity
Charcoal wraps up TiO2Structure type.Molded catalyst bodies gc is obtained, composition is shown in Table 1.
Comparative example 4
With embodiment 1, difference is: active carbon is not beaten.Molded catalyst bodies gd is obtained, composition is shown in Table 1.
The present invention, which holds the specific surface area of catalyst and hole using Physisorption Analyzer, to be analyzed；Using granule strength
Analyzer measures side pressure strength；Rate of wear is measured using abrasion instrument；Grain graininess is measured using laser particle analyzer；Metallic element contains
Amount uses X-ray fluorescence spectrometer.
The composition and property of 1 catalyst of table
The catalyst prepared it can be seen from catalyst property in table 1 with this method, aluminium oxide/work with similar approach preparation
Property carbon composite compare, specific surface area, Kong Rong, survey Compressive Strength and in terms of quite, bulk property is preferable.
The catalyst of the catalyst of 1-16 of the embodiment of the present invention and comparative example 1-4 are subjected to evaluation experimental.Catalyst packing
In fixed bed reactors, being passed through concentration is 70g/m3Ozone, to certain refinery, comprehensive draining is handled.The main dirt investigated
Object COD is contaminated, value is about 100mg/L, as evaluation raw water.Treatment conditions are normal temperature and pressure, catalyst amount 200g, smelly
Oxygen dosage 50mg/L, 45 min of residence time, the average value being discharged after processing are listed in table 2.
2 embodiment of table and comparative example test result
From table 2 it can be seen that there is preferable activity using catalyst prepared by the method for the present invention, it is equal that COD value is discharged after processing
Lower than the catalyst of comparative example.
Claims (16)
1. a kind of ozone oxidation catalyst, it is characterised in that: be with TiO2Doping active metal is core, with supported active metals
Active carbon is the composite catalyst of shell；On the basis of the weight of catalyst, TiO2Weight ratio be 30%-80%, the weight of active carbon
Amount is than being 10%-60%, TiO2The active metal of doping is transition metal or rare earth metal, adulterates the weight of reactive metal oxides
Amount is than being 1%-10%；Activated carbon supported active metal is at least one of transition metal or rare earth metal, supported active gold
The weight ratio for belonging to oxide is 1%-10%.
2. catalyst according to claim 1, it is characterised in that: the TiO2To be anatase structured, the active carbon
All kinds of wood activated charcoals or coaly activated carbon are selected, to be powdered, granularity is 200-400 mesh, specific surface area 600-
3000m2/ g, Kong Rongwei 0.5-1.8cm3/ g, average pore radius 1-10nm.
3. catalyst according to claim 1, it is characterised in that: the transition metal is vanadium, chromium, manganese, iron, cobalt and copper
One or more of,；The rare earth metal is one or more of cerium, lanthanum, rubidium etc..
4. catalyst according to claim 1, it is characterised in that: the catalyst forms as needed, the grain of formed body
Degree is 0.5-8.0mm；Specific surface area is 200-500m2/ g, Kong Rongwei 0.1-0.5cm3/ g, rate of wear≤4.5wt%, side pressure strength
For 50-150N/cm.
5. the preparation method of any catalyst of claim 1-4, it is characterised in that the following steps are included:
(1) diluent is added in metal salt and respective metal salting liquid is made, acidulant is then added, it is molten to stir to get precursor
Liquid；
(2) to TiO2(1) is introduced in presoma forms presoma complex sol；
(3) active carbon is added in active metal salt solution, mashing obtains mixed serum, and the presoma for introducing (2) later is multiple
It closes colloidal sol to mix, obtained mixture is aged, filtered, dried；
(4) dried object of step (3) is milled into powder, and gelatinizing agent extruded moulding is added and obtains shaping of catalyst after dry, roasting
Body.
6. according to the method described in claim 5, it is characterized by: metal described in step (1) is rare earth metal or transition gold
Belong to, wherein transition metal is one or more of vanadium, chromium, manganese, iron, cobalt and copper, and rare earth metal is one in cerium, lanthanum, rubidium etc.
Kind is several；The metal salt is mainly the nitrate or chlorate of above-mentioned metal.
7. according to the method described in claim 5, it is characterized by: diluent described in step (1) is deionized water or alcohol
Solvent, the alcoholic solvent are monohydric alcohol or dihydric alcohol, and the additional amount of diluent is so that the mass concentration of metal salt solution is
5%-20%。
8. according to the method described in claim 5, it is characterized by: acidulant described in step (1) is organic acid reagent, tune
The pH value for saving step (1) metal salt solution is 3-5.
9. according to the method described in claim 5, it is characterized by: TiO described in step (2)2Presoma, predominantly four isopropyls
One or more of alcohol titanium, butyl titanate, metatitanic acid second rouge, tetraethyl titanate, TiO2Presoma and step (1) metal salt are molten
The mass ratio of liquid is 1:2-1:3.
10. according to the method described in claim 5, it is characterized by: active carbon described in step (3) selects all kinds of wooden activity
Charcoal or coaly activated carbon, are powdered active carbon, and granularity is 200-400 mesh, specific surface area 600-3000m2/ g, Kong Rongwei
0.5-1.8cm3/ g, average pore radius 1-10nm.
11. according to the method described in claim 5, it is characterized by: active metal salt solution described in step (3) is rare earth gold
The nitrate or chlorination salting liquid of category or transition metal, wherein transition metal is one of vanadium, chromium, manganese, iron, cobalt and copper or several
Kind, rare earth metal is one or more of cerium, lanthanum, rubidium etc., and the mass concentration of active metal salt solution is 5%-20%.
12. according to the method described in claim 5, it is characterized by: active metal salt solution is added in active carbon by step (3)
In, the mass ratio of the active carbon and active metal salt solution is 1:2-1:3.
13. according to the method described in claim 5, it is characterized by: active carbon described in step (3) mashing using be added water,
One of low-carbon alcohols or it is a variety of be beaten, wherein low-carbon alcohols are monohydric alcohol, the dihydric alcohol of carbon atom number 1-4, and additional amount is
The 20%-50% of quality of activated carbon.
14. according to the method described in claim 5, it is characterized by: step (3) mashing after, the presoma complex sol of introducing
Mass ratio with active carbon is 2:1-5:1.
15. according to the method described in claim 5, it is characterized by: step (3) mashing after mixed serum be first aged, be aged
Temperature is 15-45 DEG C, digestion time 1-8h；The filter cloth mesh number that filtering uses is greater than 300；Drying temperature is 60-130 DEG C, is done
The dry time is 2-20h.
16. according to the method described in claim 5, it is characterized by: step (4) the dried object grinds, powder diameter are
100-200 mesh；The gelatinizing agent is starch or polyacrylamide etc., and gelatinizing agent additional amount is the 5%-20% of powder quality；It is described
Drying temperature is 60-130 DEG C, drying time 2-20h；The roasting carries out under atmosphere of inert gases, maturing temperature 350-
700 DEG C, calcining time 2-6h.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1619303A (en) * | 2003-01-03 | 2005-05-25 | 北京科技大学 | Automobile tail gas sensor made of CeO2 and TiO2 coated material |
| CN101767844A (en) * | 2010-01-19 | 2010-07-07 | 广州市昇华机械制造有限公司 | Nanometer photo-catalytic converter for water treatment |
| CN101786597A (en) * | 2010-03-26 | 2010-07-28 | 湘潭大学 | TiO2 nuclear shell structure nano rod array coated with carbon bed and preparation method thereof |
| CN102066243A (en) * | 2008-06-20 | 2011-05-18 | 大阪瓦斯株式会社 | Titanium oxide coated carbon fiber and porous titanium oxide coated carbon material composition |
| CN102198392A (en) * | 2011-03-29 | 2011-09-28 | 四川农业大学 | Preparation method and application of carbon-wrapped titanium dioxide composite material |
| CN105833858A (en) * | 2016-04-28 | 2016-08-10 | 北京科技大学 | Preparation method for two-dimensional carbon film cladding sea urchin-shaped titanium dioxide composite material |
| CN106111211A (en) * | 2016-06-25 | 2016-11-16 | 董晓 | A kind of modified core shell structure Fe3o4/ C/TiO2the preparation method of composite |
-
2017
- 2017-12-06 CN CN201711279580.2A patent/CN109876791B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1619303A (en) * | 2003-01-03 | 2005-05-25 | 北京科技大学 | Automobile tail gas sensor made of CeO2 and TiO2 coated material |
| CN102066243A (en) * | 2008-06-20 | 2011-05-18 | 大阪瓦斯株式会社 | Titanium oxide coated carbon fiber and porous titanium oxide coated carbon material composition |
| CN101767844A (en) * | 2010-01-19 | 2010-07-07 | 广州市昇华机械制造有限公司 | Nanometer photo-catalytic converter for water treatment |
| CN101786597A (en) * | 2010-03-26 | 2010-07-28 | 湘潭大学 | TiO2 nuclear shell structure nano rod array coated with carbon bed and preparation method thereof |
| CN102198392A (en) * | 2011-03-29 | 2011-09-28 | 四川农业大学 | Preparation method and application of carbon-wrapped titanium dioxide composite material |
| CN105833858A (en) * | 2016-04-28 | 2016-08-10 | 北京科技大学 | Preparation method for two-dimensional carbon film cladding sea urchin-shaped titanium dioxide composite material |
| CN106111211A (en) * | 2016-06-25 | 2016-11-16 | 董晓 | A kind of modified core shell structure Fe3o4/ C/TiO2the preparation method of composite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116020465A (en) * | 2022-12-26 | 2023-04-28 | 南京环保产业创新中心有限公司 | Preparation method and application of composite photocatalytic filler |
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