CN106179365A - A kind of novel wide-band response type photocatalyst formula and production technology - Google Patents
A kind of novel wide-band response type photocatalyst formula and production technology Download PDFInfo
- Publication number
- CN106179365A CN106179365A CN201610489602.7A CN201610489602A CN106179365A CN 106179365 A CN106179365 A CN 106179365A CN 201610489602 A CN201610489602 A CN 201610489602A CN 106179365 A CN106179365 A CN 106179365A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- product
- solution
- photocatalyst
- cerium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
- A01N59/20—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Abstract
The invention discloses a kind of novel wide-band response type photocatalyst formula and production technology, the nano titanium oxide mixed with Red copper oxide, cerium oxide is for photoresponse base material.Being characterized in that light excites wave band to forgive UV light region and visible region, photocatalyst utilization rate, persistency are high.In air cleaning and sterilization field, the high-efficient purification efficiency except formaldehyde 99% and degerming 99% can be reached.
Description
Technical field
The invention belongs to coating and plastics chemical field and air cleaning, sterilization technology field, more specifically, the present invention relates to
And a kind of novel wide-band response type photocatalyst formula and production technology.
Background technology
Technical need
Currently, problem of environmental pollution particularly indoor environmental pollution and water pollute and the most constantly deteriorate, people
Extremely urgent environmental problem and variation thereof are increasingly paid attention to.Particularly, nowadays more case shows, indoor
The volatility organic contamination of decorating and renovating material includes formaldehyde, benzene series (VOC), ammonia, radon and owing to relatively enclosed environment derives
High antibacterial staining problem, positive maximum threaten quality of life of the mankind and healthy.How can efficiently control and to control
Manage the most serious environmental pollution and have become as a world-class important problem and challenge.
In the processing procedure of pollutant, Conventional processing methods includes, physical absorption, physical filtering, physical sedimentation etc.
Method, is characterized in easy to use, and weak point is to pass through physical action Adsorption, it is impossible to thoroughly decomposes pollution, takes stopgap measures
Do not effect a permanent cure, easily produce secondary pollution.And plasma method, electrocatalytic method etc. can be with the equipment of decomposing pollutant again because it needs
Consume certain energy.Current at energy scarcity, how developing a kind of energy-efficient air method is era development
One important topic.Photocatalyst purify air with sterilize be a kind of novel environmental protection, reusable edible eco-friendly
Technology, arises at the historic moment under existing situation.
Technological innovation
Nano titanium dioxide is great representational photocatalysis (photocatalyst) semi-conducting material.Due to the energy that anatase crystal is wide
Amount band gap (3.2-3.6), it can generation electron transition under the exciting of ultraviolet light, the oxygen in air and hydrone are excited,
Form the extremely strong hydroxyl free radical (-OH) of oxidability and active oxygen (-O2-), these free radicals can catch and kill swimming in air
Antibacterial and Organic substance, and constantly pollutant are resolved into water and carbon dioxide, thus reach the purpose of environment purification and air.Remove
Can purify outside the function of air and sterilization, photocatalyst is also applied to purification of water quality, antifouling, smelly eliminating deodorize, roots out allergy
The field such as former.
But due to titanium dioxide mainly by ultraviolet excitation.But the energy that can arrive ground in sunlight only accounts for visible luminous energy
About the 10% of amount, the ultraviolet light content of indoor is the lowest.The present invention relates to the innovation of a kind of broadband photocatalyst,
By mixing Red copper oxide and cerium oxide, the exciting light of photocatalyst is widened visible light wave range by ultraviolet band.It is greatly improved
The air purification efficiency of photocatalyst and germicidal efficiency.
Technical advantage
For the exploitation of visible ray photocatalyst, the most existing a small amount of document report.Such as just report in patent CN104755166
A kind of composite titanium dioxide photocatalyst in road, it is possible to use excited by visible light.But the composite titanium dioxide used by this patent is used
Arrive rare metal rhodium strontium titanate doping.The introducing of rare metal considerably increases the cost of product beyond doubt.Involved by the present invention
And the metal that mixes be the common metals such as cuprous class, have more advantage.
A kind of novel wide-band response type photocatalyst formula and production technology involved by the invention described above, its feature is such as
Under:
(1) innovatively Red copper oxide and cerium oxide are mixed nano-titania photocatalyst system, considerably increase light and touch
The exciting light wave band of matchmaker, improves the utilization ratio of photocatalyst, air purification efficiency and germicidal efficiency；
(2) problem easily reunited for Conventional nano titanium dioxide granule, the problem that chemical-resistance is not enough, the present invention passes through
Add compound stabilizer and cover torr soil, improve the stability of photocatalyst；
(3) photocatalyst of titanium dioxide prepared by the present invention has good hydrophilic, has good water logging lubricant nature；
(4) compared with traditional photocatalyst of titanium dioxide, photocatalyst of titanium dioxide involved in the present invention also has epigranular,
The feature that applicable field is wide.
Summary of the invention
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Water 1000
Titanium dioxide 50-200
Red copper oxide 20 ~ 40
Cerium oxide 10-35
Cover torr soil particle 0 ~ 10
Dispersant 10-35
Stabilizer 1 ~ 20
Other are 0 ~ 50 years old
Preferably, a kind of novel wide-band response type photocatalyst formula, the raw material including following weight portion it is prepared from:
Water 1000
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
Dispersant 25
Stabilizer 10
Other are 25 years old
In one embodiment, described nano titanium oxide is obtained by sol-gel process, and its preparation condition is as follows:
(1) with absolute alcohol as solvent, butyl titanate is presoma, adds a small amount of acid or alkali plays suppression fast hydrolyzing effect,
Produce electrostatic repulsion between the particle obtained by induction, stop interparticle collision, prevent from producing big particle further, control crystal
Growth.Forming nano level sol particles at ambient temperature, the colloidal sol obtained becomes the liquid of clear homogeneous；
(2) TiO 2 sol is at room temperature aged 12 hours, separates it, is dried, grinds；
(3) in Muffle furnace 100 DEG C be incubated 1 hour, be continuously heating to 500-550 DEG C of temperature lower calcination 2 hours, naturally cool to
Room temperature, obtains nano titania titanium dioxide split.
Titanium dioxide primary particle size prepared by the present invention is below 100nm.
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
In one embodiment, described Red copper oxide is prepared by liquid phase reduction, and its preparation condition is as follows:
(1) copper sulphate pentahydrate is dissolved in deionization water-ethylene glycol 1:1 mixed solvent, stirs, drip appropriate NaOH,
Stir full and uniform after, drip hydrazine hydrate reduction agent, react 1h.Reaction condition is 80 DEG C.
(2), after reaction terminates, product cleans through deionized water, dehydrated alcohol sucking filtration, is dried 5 hours with 60 DEG C of vacuum drying ovens,
Finally obtain powder sample.
Red copper oxide primary particle size prepared by the present invention is below 100nm.
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
In one embodiment, described cerium oxide refers to that preparing cerium by coprecipitation mixes titanium dioxide, process
Condition is as follows:
(1) realization that cerium mixes is by adding cerous nitrate, and the content of control cerium is below 0.5%, by cerous nitrate aqueous solution with few
Amount dilute nitric acid solution is configured to solution A；
(2) dehydrated alcohol, butyl titanate are configured to solution B, stir；
(3) under agitation, solution A is slowly added drop-wise in solution B, keeps the mobility of solution, it is thus achieved that the titanium dioxide mixed
Colloidal sol；
(4) mix TiO 2 sol through room temperature be aged after, formed gel.Solid is obtained, through overheated place through sucking filtration drip washing
Reason, it is thus achieved that mix titanium dioxide.Finally grind screening and obtain product.
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
In one embodiment, described covers the illiteracy torr soil that torr soil is Nano grade, can be that commercially available commercialization is produced
Product.
In one embodiment, described stabilizer, the ion pair produced under photocatalysis mainly for titanium dioxide
Free radical quencher and cause the problem that photocatalyst inactivates to introduce.It can be the one in silicon dioxide, aluminium hydroxide or many
Kind.Described silicon dioxide, aluminium hydroxide are not particularly limited, and can be commercially available any commercially produced product.
In one embodiment, described dispersant, the mainly photocatalyst prepared by raising have the most stable
Property introduce, can be one or more in APS class siloxanes, PEG class dispersant, hydrogeneous emulsifying agent.
In one embodiment, other described polymer fill can added according to the actual demand of product,
Can be acrylate copolymer, silicone resin etc..
The preparation method of a kind of novel wide-band response type photocatalyst production technology is as follows:
(1) in water, add appropriate dispersant, stir；
(2) polymer fill is added according to the actual demand of product；Stir；
(3) by one or more in claim 2-4, in advance in vibration sifter, shaken well, and screen out bigger
Grain；
(4) by the mixed-powder of above-mentioned steps 3 in the case of stirring, join in the aqueous solution of step 2, be subsequently added into appropriate
Stabilizer, be sufficiently mixed, be configured to the product of the present invention.
Detailed description of the invention
This public affairs can be more easily understood with reference to the detailed description of preferred implementation of the invention below and the embodiment that includes
Open content.Example is served only for explaining this utility model, is not intended to limit scope of the present utility model.The specialty in this field
Some nonessential improvement and adjustment that technical staff makes according to the content of the invention described above, still fall within the protection model of the present invention
Enclose.
Approximation term in specification and claims is used for modifying quantity, represents that the present invention is not limited to this concrete
Quantity, also includes close to this quantity acceptable without causing the part of the correction of the change of relevant basic function.Phase
Answer, modify a numerical value with " about ", " about " etc., mean and the invention is not restricted to this exact numerical.In some example, approximation
Term likely corresponds to detect the precision of the equipment of numerical value.In present specification and claims, scope limits permissible
Combination and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
Equivalent, concentration or other value or parameter are preferred with scope, preferred scope or a series of upper limit preferred value and lower limit
During the Range Representation that value limit is walked, this is appreciated that and specifically discloses by any range limit or preferred
All scopes that arbitrary pairing of value and any range lower limit or preferred value is formed, regardless of whether this scope is the most public
Open.Such as, when disclosing scope " l to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1
To 2 ", " 1 to 2 and 4 to 5 ", " 1 to 3 and 5 " etc..When numerical range is described in this article, unless otherwise indicated, otherwise should
Scope is intended to include its end value and all integers within the range and mark.
Additionally, indefinite article " a kind of " before key element of the present invention or component and " one " are to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore " one " or " a kind of " should be read as including one or at least one, and odd number
The key element of form or component also include plural form, unless the obvious purport of described quantity refers to singulative.
It addition, illustrate without other, raw materials used is all commercially available.
The specific implementation method of a kind of novel wide-band response type photocatalyst is as follows:
1. prepared by raw material: include that nano titanium oxide, nano cuprous oxide, cerium mix the preparation of nano titanium oxide:
Nano titanium oxide:
(1) with absolute alcohol as solvent, butyl titanate is presoma, adds a small amount of acid or alkali plays suppression fast hydrolyzing effect,
Produce electrostatic repulsion between the particle obtained by induction, stop interparticle collision, prevent from producing big particle further, control crystal
Growth.Forming nano level sol particles at ambient temperature, the colloidal sol obtained becomes the liquid of clear homogeneous；
(2) TiO 2 sol is at room temperature aged 12 hours, separates it, is dried, grinds；
(3) in Muffle furnace 100 DEG C be incubated 1 hour, be continuously heating to 500-550 DEG C of temperature lower calcination 2 hours, naturally cool to
Room temperature, obtains nano titania titanium dioxide split.
Red copper oxide:
(1) copper sulphate pentahydrate is dissolved in deionization water-ethylene glycol 1:1 mixed solvent, stirs, drip appropriate NaOH,
Stir full and uniform after, drip hydrazine hydrate reduction agent, react 1h.Reaction condition is 80 DEG C.
(2), after reaction terminates, product cleans through deionized water, dehydrated alcohol sucking filtration, is dried 5 hours with 60 DEG C of vacuum drying ovens,
Finally obtain powder sample.
Cerium mixes titanium dioxide:
(1) realization that cerium mixes is by adding cerous nitrate, and the content of control cerium is below 0.5%, by cerous nitrate aqueous solution with few
Amount dilute nitric acid solution is configured to solution A；
(2) dehydrated alcohol, butyl titanate are configured to solution B, stir；
(3) under agitation, solution A is slowly added drop-wise in solution B, keeps the mobility of solution, it is thus achieved that the titanium dioxide mixed
Colloidal sol.
(4) mix TiO 2 sol through room temperature be aged after, formed gel.Obtain solid through sucking filtration drip washing, pass through
Heat treatment, it is thus achieved that mix titanium dioxide.Finally grind screening and obtain product.
Composite solution preparation method is as follows:
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Water 1000
Titanium dioxide 50-200
Red copper oxide 20 ~ 40
Cerium oxide 10-35
Cover torr soil particle 0 ~ 10
Dispersant 10-35
Stabilizer 1 ~ 20
Other are 0 ~ 50 years old
Preferably, a kind of novel wide-band response type photocatalyst formula, the raw material including following weight portion it is prepared from:
Water 1000
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
Dispersant 25
Stabilizer 10
Other are 25 years old
(1) in water, add appropriate dispersant, stir；
(2) polymer fill is added according to the actual demand of product；Stir；
(3) by one or more in claim 2-4, in advance in vibration sifter, shaken well, and screen out bigger
Grain；
(4) by the mixed-powder of above-mentioned steps 3 in the case of stirring, join in the aqueous solution of step 2, be subsequently added into appropriate
Stabilizer, be sufficiently mixed, be configured to the product of the present invention.
Products application: according to reality application, product is sprayed, is supported on corresponding carrier, carry out air cleaning and sterilization
Process.
Method of testing
Formaldehyde examination: according to standard GB/T/T 15516, uses acetylacetone,2,4-pentanedione spectrophotometry air formaldehyde concentration；
Water warfare detects: with rhodamine B as experimental subject, uses the concentration of ultraviolet spectrophotometry test Organic substance in water；
Water warfare efficiency KBCalculate according to the following formula:
Wherein C0For rhodamine B initial concentration, C1For rhodamine B real-time concentration.
Air fungal counting:
(1) by sterilized plain agar culture medium (pH=7.6), water proof is heated to dissolving completely.
(2) it is cooled to about 50 DEG C, adds sterilizing with sterile working and take off fiber rabbit or Sanguis caprae seu ovis, shake up gently and (do not made gas
Bubble), pour in sterilizing plate (a diameter of 90 mm) immediately, every ware injects 15-25 ml.After agar solidification, upset plate (lid
Under), put into 37 DEG C of calorstats, through 24 h aseptic culture without bacterial growth, can be used for detecting.
(3) every 5-10 m21 measuring point is set, culture dish is put on ground.
(4) place 30 min after plate is opened, add a cover.Be put in 37 DEG C of calorstats after cultivating 48 h calculate clump count (individual/
Ware).
Germicidal efficiency Kj calculates according to the following formula:
Wherein C0For initial clump count, C1For real-time clump count.
Photocatalytic activity: simulate nature light with uviol lamp and xenon lamp respectively, with formaldehyde analysis object:
(1) in environmental test chamber, it is 20 DEG C that temperature controls, moderate control 48%, controls analytical pure formaldehyde (37%) 2.0 mL/
1m3..Maintain 24 hours, make environment reach stable state；
(2) surface scribbling photocatalyst is put in environmental test chamber, open light source, through the stipulated time, according to corresponding test
Content of formaldehyde in method test air.
Formaldehyde removal efficiency Kq calculates according to the following formula:
Wherein C0For initial amount concentration, C1For real-time concentration of formaldehyde.
Embodiment 1
1. prepared by raw material: include that nano titanium oxide, nano cuprous oxide, cerium mix the preparation of nano titanium oxide:
Nano titanium oxide:
(1) with absolute alcohol as solvent, butyl titanate is presoma, adds a small amount of acid or alkali plays suppression fast hydrolyzing effect,
Produce electrostatic repulsion between the particle obtained by induction, stop interparticle collision, prevent from producing big particle further, control crystal
Growth.Forming nano level sol particles at ambient temperature, the colloidal sol obtained becomes the liquid of clear homogeneous；
(2) TiO 2 sol is at room temperature aged 12 hours, separates it, is dried, grinds；
(3) in Muffle furnace 100 DEG C be incubated 1 hour, be continuously heating to 500-550 DEG C of temperature lower calcination 2 hours, naturally cool to
Room temperature, obtains nano titania titanium dioxide split.
Red copper oxide:
(1) copper sulphate pentahydrate is dissolved in deionization water-ethylene glycol 1:1 mixed solvent, stirs, drip appropriate NaOH,
Stir full and uniform after, drip hydrazine hydrate reduction agent, react 1h.Reaction condition is 80 DEG C.
(2), after reaction terminates, product cleans through deionized water, dehydrated alcohol sucking filtration, is dried 5 hours with 60 DEG C of vacuum drying ovens,
Finally obtain powder sample.
Cerium mixes titanium dioxide:
(1) realization that cerium mixes is by adding cerous nitrate, and the content of control cerium is below 0.5%, by cerous nitrate aqueous solution with few
Amount dilute nitric acid solution is configured to solution A；
(2) dehydrated alcohol, butyl titanate are configured to solution B, stir；
(3) under agitation, solution A is slowly added drop-wise in solution B, keeps the mobility of solution, it is thus achieved that the titanium dioxide mixed
Colloidal sol；
(4) mix TiO 2 sol through room temperature be aged after, formed gel.Solid is obtained, through overheated place through sucking filtration drip washing
Reason, it is thus achieved that mix titanium dioxide.Finally grind screening and obtain product.
Composite solution preparation method is as follows:
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Water 1000
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
PEG 800 25
Silica 10
Polyacrylic acid 25
(1) in water, add appropriate dispersant, stir；
(2) polymer fill is added according to the actual demand of product；Stir；
(3) by one or more in claim 2-4, in advance in vibration sifter, shaken well, and screen out bigger
Grain；
(4) by the mixed-powder of above-mentioned steps 3 in the case of stirring, join in the aqueous solution of step 2, be subsequently added into appropriate
Stabilizer, be sufficiently mixed, be configured to the product of the present invention.
Products application: according to reality application, product is made implant, be supported on commercially available sponge, solidification.For air
Purify.
Method of testing
Formaldehyde examination: according to standard GB/T/T 15516, uses acetylacetone,2,4-pentanedione spectrophotometry air formaldehyde concentration；
Air fungal counting:
(1) by sterilized plain agar culture medium (pH=7.6), water proof is heated to dissolving completely.
(2) it is cooled to about 50 DEG C, adds sterilizing with sterile working and take off fiber rabbit or Sanguis caprae seu ovis, shake up gently and (do not made gas
Bubble), pour in sterilizing plate (a diameter of 90 mm) immediately, every ware injects 15-25 ml.After agar solidification, upset plate (lid
Under), put into 37 DEG C of calorstats, through 24 h aseptic culture without bacterial growth, can be used for detecting.
(3) every 5-10 m21 measuring point is set, culture dish is put on ground.
(4) place 30 min after plate is opened, add a cover.Be put in 37 DEG C of calorstats after cultivating 48 h calculate clump count (individual/
Ware).
Germicidal efficiency Kj calculates according to the following formula:
Wherein C0For initial clump count, C1For real-time clump count.
Photocatalytic activity: simulate nature light with uviol lamp and xenon lamp respectively, with formaldehyde analysis object:
(1) in environmental test chamber, it is 20 DEG C that temperature controls, moderate control 48%, controls analytical pure formaldehyde (37%) 2.0 mL/
1m3..Maintain 24 hours, make environment reach stable state；
(2) surface scribbling photocatalyst is put in environmental test chamber, open light source, through the stipulated time, according to corresponding test
Content of formaldehyde in method test air.
Formaldehyde removal efficiency Kq calculates according to the following formula:
Wherein C0For initial amount concentration, C1For real-time concentration of formaldehyde.
Embodiment 2
1. prepared by raw material: include that nano titanium oxide, nano cuprous oxide, cerium mix the preparation of nano titanium oxide with reference to implementing
Example 1
2. composite solution preparation method is as follows:
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Water 1000
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
OP-10 emulsifying agent 25
Silica 10
Silicone resin 25
(1) in water, add appropriate dispersant, stir；
(2) polymer fill is added according to the actual demand of product；Stir；
(3) by one or more in claim 2-4, in advance in vibration sifter, shaken well, and screen out bigger
Grain；
(4) by the mixed-powder of above-mentioned steps 3 in the case of stirring, join in the aqueous solution of step 2, be subsequently added into appropriate
Stabilizer, be sufficiently mixed, be configured to the product of the present invention.
Products application: product made spray painting in glass sheet surface according to reality application, carry out air cleaning and kill
Bacterium processes.
Method of testing
Formaldehyde examination: according to standard GB/T/T 15516, uses acetylacetone,2,4-pentanedione spectrophotometry air formaldehyde concentration；
Air fungal counting:
(1) by sterilized plain agar culture medium (pH=7.6), water proof is heated to dissolving completely.
(2) it is cooled to about 50 DEG C, adds sterilizing with sterile working and take off fiber rabbit or Sanguis caprae seu ovis, shake up gently and (do not made gas
Bubble), pour in sterilizing plate (a diameter of 90 mm) immediately, every ware injects 15-25 ml.After agar solidification, upset plate (lid
Under), put into 37 DEG C of calorstats, through 24 h aseptic culture without bacterial growth, can be used for detecting.
(3) every 5-10 m21 measuring point is set, culture dish is put on ground.
(4) place 30 min after plate is opened, add a cover.Be put in 37 DEG C of calorstats after cultivating 48 h calculate clump count (individual/
Ware).
Germicidal efficiency Kj calculates according to the following formula:
Wherein C0For initial clump count, C1For real-time clump count.
Photocatalytic activity: simulate nature light with uviol lamp and xenon lamp respectively, with formaldehyde analysis object:
(1) in environmental test chamber, it is 20 DEG C that temperature controls, moderate control 48%, controls analytical pure formaldehyde (37%) 2.0 mL/
1m3..Maintain 24 hours, make environment reach stable state；
(2) surface scribbling photocatalyst is put in environmental test chamber, open light source, through the stipulated time, according to corresponding test
Content of formaldehyde in method test air.
Formaldehyde removal efficiency Kq calculates according to the following formula:
Wherein C0For initial amount concentration, C1For real-time concentration of formaldehyde.
Embodiment 3
1. prepared by raw material: include that nano titanium oxide, nano cuprous oxide, cerium mix the preparation of nano titanium oxide with reference to implementing
Example 1.
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
APS 25
Silicon dioxide 2
2. products application: said mixture is put into and carries out water process containing in the aqueous solution that rhodamine B concentration is 1M.
Method of testing
Water warfare detects: with rhodamine B as experimental subject, uses the concentration of ultraviolet spectrophotometry test Organic substance in water；
Water warfare efficiency KBCalculate according to the following formula:
Wherein C0For rhodamine B initial concentration, C1For rhodamine B real-time concentration.
Embodiment 4
1. prepared by raw material: include that nano titanium oxide, nano cuprous oxide, cerium mix the preparation of nano titanium oxide with reference to implementing
Example 1.
A kind of novel wide-band response type photocatalyst formula, is prepared from by the raw material including following weight portion:
Water 100
Titanium dioxide 120
Red copper oxide 35
Cerium oxide 30
Cover torr soil particle 6
APS 25
Silicon dioxide 2
Agar 50
2. formed product: with agar as carrier, prepares photocatalysis hydrogel.
Products application: the said goods is put into and carries out water process containing in the aqueous solution that rhodamine B concentration is 1M.By upper
State product to be put in air, carry out air cleaning and sterilization processing.
Method of testing
Water warfare detects: with rhodamine B as experimental subject, uses the concentration of ultraviolet spectrophotometry test Organic substance in water；
Water warfare efficiency KBCalculate according to the following formula:
Wherein C0For rhodamine B initial concentration, C1For rhodamine B real-time concentration.
Formaldehyde examination: according to standard GB/T/T 15516, uses acetylacetone,2,4-pentanedione spectrophotometry formaldehyde in air
Concentration；
Air fungal counting:
(1) by sterilized plain agar culture medium (pH=7.6), water proof is heated to dissolving completely.
(2) it is cooled to about 50 DEG C, adds sterilizing with sterile working and take off fiber rabbit or Sanguis caprae seu ovis, shake up gently and (do not made gas
Bubble), pour in sterilizing plate (a diameter of 90 mm) immediately, every ware injects 15-25 ml.After agar solidification, upset plate (lid
Under), put into 37 DEG C of calorstats, through 24 h aseptic culture without bacterial growth, can be used for detecting.
(3) every 5-10 m21 measuring point is set, culture dish is put on ground.
(4) place 30 min after plate is opened, add a cover.Be put in 37 DEG C of calorstats after cultivating 48 h calculate clump count (individual/
Ware).
Germicidal efficiency Kj calculates according to the following formula:
Wherein C0For initial clump count, C1For real-time clump count.
Photocatalytic activity: simulate nature light with uviol lamp and xenon lamp respectively, with formaldehyde analysis object:
(1) in environmental test chamber, it is 20 DEG C that temperature controls, moderate control 48%, controls analytical pure formaldehyde (37%) 2.0 mL/
1m3..Maintain 24 hours, make environment reach stable state；
(2) surface scribbling photocatalyst is put in environmental test chamber, open light source, through the stipulated time, according to corresponding test
Content of formaldehyde in method test air.
Formaldehyde removal efficiency Kq calculates according to the following formula:
Wherein C0For initial amount concentration, C1For real-time concentration of formaldehyde.
Data summary table
Sum up data above
From tables of data it can be seen that the photocatalyst of quilt caused by the present invention has good air-filtering ability, antibiotic and sterilizing ability
And Water warfare ability, wherein air formaldehyde clearance reaches 99%.It thus provides the Advantageous Effects of the present invention.
Aforesaid example is merely illustrative, for explaining some features of the feature of the disclosure.Appended claim
It is intended to the widest scope that requirement it is contemplated that, and embodiments as presented herein is only according to all possible embodiment
The explanation of embodiment of selection of combination.Therefore, the purpose of applicant is that appended claim is not by the explanation present invention
The selectional restriction of example of feature.And the progress in science and technology will be formed due to language performance inaccurate reason and not
The possible equivalent or the son that are presently considered are replaced, and these changes also should be interpreted in the conceived case by appended
Claim covers.
Claims (9)
1. novel wide-band response type photocatalyst formula and a production technology, by include following weight portion raw material prepare and
Become:
Water 1000
Titanium dioxide 50-200
Red copper oxide 20 ~ 40
Cerium oxide 10-35
Cover torr soil particle 0 ~ 10
Dispersant 10-35
Stabilizer 1 ~ 20
Other are 0 ~ 50 years old.
2. nano titanium oxide as claimed in claim 1 is obtained by sol-gel process, and its preparation condition is as follows:
(1) with absolute alcohol as solvent, butyl titanate is presoma, adds a small amount of acid or alkali plays suppression fast hydrolyzing effect,
Produce electrostatic repulsion between the particle obtained by induction, stop interparticle collision, prevent from producing big particle further, control crystal
Growth；
Forming nano level sol particles at ambient temperature, the colloidal sol obtained becomes the liquid of clear homogeneous；
(2) TiO 2 sol is at room temperature aged 12 hours, separates it, is dried, grinds；
(3) in Muffle furnace 100 DEG C be incubated 1 hour, be continuously heating to 500-550 DEG C of temperature lower calcination 2 hours, naturally cool to
Room temperature, obtains nano titania titanium dioxide split；
Titanium dioxide primary particle size prepared by the present invention is below 100nm；
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
3. Red copper oxide as claimed in claim 1 is prepared by liquid phase reduction, and its preparation condition is as follows:
(1) copper sulphate pentahydrate is dissolved in deionization water-ethylene glycol 1:1 mixed solvent, stirs, drip appropriate NaOH,
Stir full and uniform after, drip hydrazine hydrate reduction agent, react 1h, reaction condition is 80 DEG C；
(2), after reaction terminates, product cleans through deionized water, dehydrated alcohol sucking filtration, is dried 5 hours with 60 DEG C of vacuum drying ovens,
Finally obtain powder sample；
Red copper oxide primary particle size prepared by the present invention is below 100nm；
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
4. cerium oxide as claimed in claim 1 refers to that preparing cerium by coprecipitation mixes titanium dioxide, and process condition is as follows:
(1) realization that cerium mixes is by adding cerous nitrate, and the content of control cerium is below 0.5%, by cerous nitrate aqueous solution with few
Amount dilute nitric acid solution is configured to solution A；
(2) dehydrated alcohol, butyl titanate are configured to solution B, stir；
(3) under agitation, solution A is slowly added drop-wise in solution B, keeps the mobility of solution, it is thus achieved that the titanium dioxide mixed
Colloidal sol；
(4) mix TiO 2 sol through room temperature be aged after, formed gel, obtain solid through sucking filtration drip washing, through overheated place
Reason, it is thus achieved that mix titanium dioxide；Finally grind screening and obtain product；
Above-mentioned preparation process, medicine used is not particularly limited, and can be commercially available any commercially produced product.
5. the illiteracy torr asking soil to be Nano grade of covering as claimed in claim 1 is native, can be commercially available commercially produced product.
6. stabilizer as claimed in claim 1, the ion pair free radical produced under photocatalysis mainly for titanium dioxide is sudden
The problem gone out and cause photocatalyst to inactivate introduces, and can be one or more in silicon dioxide, aluminium hydroxide, described
Silicon dioxide, aluminium hydroxide are not particularly limited, and can be commercially available any commercially produced product.
7. dispersant as claimed in claim 1, the mainly photocatalyst prepared by raising have what more preferable stability introduced,
Can be one or more in APS class siloxanes, PEG class dispersant, hydrogeneous emulsifying agent.
8. other polymer fill can added according to the actual demand of product as claimed in claim 1, can be third
Olefin(e) acid polymer, silicone resin etc..
9. a novel wide-band response type photocatalyst formula is as follows with the preparation method of production technology:
(1) in water, add appropriate dispersant, stir；
(2) polymer fill is added according to the actual demand of product；Stir；
(3) by one or more in claim 2-4, in advance in vibration sifter, shaken well, and screen out bigger
Grain；
(4) by the mixed-powder of above-mentioned steps 3 in the case of stirring, join in the aqueous solution of step 2, be subsequently added into appropriate
Stabilizer, be sufficiently mixed, be configured to the product of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489602.7A CN106179365A (en) | 2016-06-29 | 2016-06-29 | A kind of novel wide-band response type photocatalyst formula and production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489602.7A CN106179365A (en) | 2016-06-29 | 2016-06-29 | A kind of novel wide-band response type photocatalyst formula and production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106179365A true CN106179365A (en) | 2016-12-07 |
Family
ID=57462043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489602.7A Pending CN106179365A (en) | 2016-06-29 | 2016-06-29 | A kind of novel wide-band response type photocatalyst formula and production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106179365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329515A (en) * | 2018-03-21 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of preparation method of antibacterial agent |
| CN109821411A (en) * | 2019-03-23 | 2019-05-31 | 谭乔 | A kind of novel wide-band response type light catalyst composition and preparation method thereof |
| CN116443924A (en) * | 2023-05-23 | 2023-07-18 | 西北大学 | Preparation method of nano titanium dioxide and preparation method of adsorption/catalytic degradation integrated material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736586A (en) * | 2005-07-06 | 2006-02-22 | 河北工业大学 | Inorganic clay compound material, its preparation and use |
| US20110147317A1 (en) * | 2008-08-22 | 2011-06-23 | Qi Li | Catalytic Compositions, Composition Production Methods, and Aqueous Solution Treatment Methods |
| CN103172104A (en) * | 2013-04-03 | 2013-06-26 | 浙江理工大学 | Preparation method of nano cuprous oxide |
-
2016
- 2016-06-29 CN CN201610489602.7A patent/CN106179365A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736586A (en) * | 2005-07-06 | 2006-02-22 | 河北工业大学 | Inorganic clay compound material, its preparation and use |
| US20110147317A1 (en) * | 2008-08-22 | 2011-06-23 | Qi Li | Catalytic Compositions, Composition Production Methods, and Aqueous Solution Treatment Methods |
| CN103172104A (en) * | 2013-04-03 | 2013-06-26 | 浙江理工大学 | Preparation method of nano cuprous oxide |
Non-Patent Citations (1)
| Title |
|---|
| 孙亚月等: "TiO2-Cu2O/蒙脱土复合光催化剂的制备与性能", 《化工环保》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329515A (en) * | 2018-03-21 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of preparation method of antibacterial agent |
| CN109821411A (en) * | 2019-03-23 | 2019-05-31 | 谭乔 | A kind of novel wide-band response type light catalyst composition and preparation method thereof |
| CN116443924A (en) * | 2023-05-23 | 2023-07-18 | 西北大学 | Preparation method of nano titanium dioxide and preparation method of adsorption/catalytic degradation integrated material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111185170B (en) | Preparation method of nano-silver antibacterial composite material wrapped by nano-zinc oxide | |
| US20110159109A1 (en) | Titania dispersion and method for making | |
| CN104624208B (en) | A kind of air cleaning photochemical catalyst and preparation method thereof | |
| CN107469820A (en) | A kind of photocatalyst and preparation method thereof | |
| CN107456983B (en) | Ag/AgCl/TiO2Composite photocatalytic material and preparation method and application thereof | |
| KR101265781B1 (en) | Titanium dioxide photocatalyst having crystalline titanium dioxide core-amorphous titanium dioxide shell structure, preparation method thereof and hydrophilic coating material comprising said titanium dioxide photocatalyst | |
| CN102151562B (en) | Method for preparing carbon fiber cloth material capable of effectively purifying air | |
| JP2007091574A (en) | Manufacturing method of high activity anatase type titanium dioxide sol which uses metatitanic acid as precursor | |
| CN106102466A (en) | Face coat | |
| CN108579721B (en) | Preparation method of photocatalyst for air VOC treatment | |
| CN106179365A (en) | A kind of novel wide-band response type photocatalyst formula and production technology | |
| CN104629548A (en) | Internal wall paint with air purification function and preparation method thereof | |
| CN101062475A (en) | Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof | |
| CN106380970B (en) | A kind of preparation method of the net aldehyde water nano emulsion paint of antibacterial | |
| CN106984306B (en) | One kind having antibacterial and the difunctional surrounding purifying material of photocatalysis and preparation method thereof | |
| US20210170385A1 (en) | Fabrication process for efficient visible light photocatalysts | |
| Amorim et al. | Antifungal and photocatalytic activity of smart paint containing porous microspheres of TiO2 | |
| CN108410366B (en) | Preparation method of silicon-titanium aerogel adsorption and photocatalysis interior wall coating | |
| KR20150101151A (en) | Coating composition comprising photocatalyst for visible rays and articles comprising same | |
| KR20160073307A (en) | Antiviral composition, antiviral agent, photo catalyst and virus inactivation process | |
| JP2016113332A (en) | TITANIUM OXIDE CARRYING BiVO4, MANUFACTURING METHOD THEREFOR AND ANTIVIRAL COMPOSITION | |
| CN108485346B (en) | Non-toxic environment-friendly antifouling self-cleaning coating and preparation method thereof | |
| CN106189717A (en) | A kind of preparation method of photochromic anticorrosive paint | |
| CN106366849A (en) | Preparation method of antibacterial, anti-radiation and anticorrosion paint | |
| CN105597726A (en) | Composite photocatalyst hydrosol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |