CN106673114A - Photodegradation purification device, as well as manufacturing method and purification method thereof - Google Patents
Photodegradation purification device, as well as manufacturing method and purification method thereof Download PDFInfo
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- CN106673114A CN106673114A CN201611016211.XA CN201611016211A CN106673114A CN 106673114 A CN106673114 A CN 106673114A CN 201611016211 A CN201611016211 A CN 201611016211A CN 106673114 A CN106673114 A CN 106673114A
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- titanium dioxide
- light degradation
- photoelectric conversion
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000001782 photodegradation Methods 0.000 title abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000010936 titanium Substances 0.000 claims abstract description 48
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 29
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 15
- 238000006731 degradation reaction Methods 0.000 claims description 42
- 230000015556 catabolic process Effects 0.000 claims description 41
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 24
- 238000000137 annealing Methods 0.000 claims description 24
- 238000005554 pickling Methods 0.000 claims description 12
- 239000011780 sodium chloride Substances 0.000 claims description 12
- 239000010865 sewage Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000012445 acidic reagent Substances 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000000280 densification Methods 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 14
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 230000007613 environmental effect Effects 0.000 description 10
- 238000007146 photocatalysis Methods 0.000 description 10
- 241000208340 Araliaceae Species 0.000 description 7
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 7
- 235000003140 Panax quinquefolius Nutrition 0.000 description 7
- 235000008434 ginseng Nutrition 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229960000907 methylthioninium chloride Drugs 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005036 potential barrier Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
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- 238000007254 oxidation reaction Methods 0.000 description 3
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a photodegradation purification device, as well as a manufacturing method and a purification method thereof. The photodegradation purification device comprises a photoelectric conversion component, a first electrode and a second electrode, wherein the first and second electrodes are electrically connected with the positive and negative electrodes of the photoelectric conversion component; the photoelectric conversion component is used for converting incident light into a photon-generated carrier; the first electrode and/or the second electrode are/is (a) titanium-titanium dioxide Schottky junction electrode(s); the titanium-titanium dioxide Schottky junction electrode comprises a titanium plate and a titanium dioxide layer formed on the surface of the titanium plate. The photodegradation purification device is simple in structure, convenient to prepare and relatively high in photodegradation efficiency, and can be widely applied to photocatalytic wastewater treatment.
Description
Technical field
The present invention relates to technical field of solar, more particularly to a kind of light degradation purifier and its manufacture method with it is net
Change method.
Background technology
From TiO in 19722Since the photocatalytic water splitting phenomenon of semi-conducting electrode is found, field of semiconductor photocatalyst is just
Extensive concern and development at full speed are obtained.Early in 20 century 70 later stages, photocatalysis are taken up in environment with regard to someone
Protection and the applied research administered, and by TiO2Suspension successful light degradation Polychlorinated biphenyls and cyanogen under ultraviolet irradiation
Compound, this work is considered as the initiative research in terms of environmental contaminants are eliminated of photocatalysis.The beginning of the eighties, multinomial light is urged
Change and obtain important progress in terms of air and organic pollutants are eliminated, become an important application of multiphase photocatalysis
Field.Multiphase photocatalysis process with conductor oxidate as catalyst has hydrolytic hydrogen production, CO2Reduction, oxidation Decomposition are organic
The many-side function such as pollutant, reducing heavy metal ion, anti-corrosion, sterilization, deodorization.Recent years, using nano titanium oxide light
Photocatalytic activity and Superhydrophilic after catalyst film forming is developing and develop receiving with photocatalysis performance and self-cleaning function
Rice photocatalysis membrana functional material, this is filled with new vitality to the basic research and development and application of nano photo catalyzed oxidation.
TiO2When powder or thin film are used for photocatalytic water splitting, service life is low, and durability is bad, TiO2Band gap can only
Absorbing ultraviolet light causes light source using insufficient.
In terms of solaode, from AT＆T Labs of the U.S. in 1954 practicality of photoelectric transformation efficiency 6% is succeeded in developing
Property monocrystaline silicon solar cell since, solar photoelectric research and application achieve many great development, for example, with monocrystal silicon
Material is compared, application, the life of banding polycrystalline silicon material of casting polycrystalline silicon material prepared by cheap utilization casting method
The invention of the technologies such as product, the silk screen printing of low cost has all promoted research and the progress of solar energy power technology significantly.At present, it is many
, more than 18%, laboratory conversion efficiency is more than 24% for crystal silicon solar batteries industrialization efficiency.
In view of above-mentioned technology, silicon solar cell and optically catalytic TiO 2 are combined there is provided possible, this is also made
Item research has broad prospects.For above-mentioned technical problem, it is necessary to provide a kind of light degradation purifier and its manufacturer
Method and purification method.
The content of the invention
In view of this, it is an object of the invention to provide a kind of light degradation purifier and its manufacture method and purification side
Method, photovoltaic module and optically catalytic TiO 2 are combined, are had broad prospects by it.
To achieve these goals, technical scheme provided in an embodiment of the present invention is as follows：
A kind of light degradation purifier, the light degradation purifier includes photoelectric conversion component and and opto-electronic conversion
First electrode and second electrode that the positive pole of component and negative pole are electrically connected with, the photoelectric conversion component is used to turn incident ray
It is changed to photo-generated carrier, the first electrode and/or second electrode are titanium-titanium dioxide Schottky junction electrode, titanium-titanium dioxide
Schottky junction electrode includes titanium sheet and is formed at the titanium dioxide oxide layer of titanium plate surface.
As a further improvement on the present invention, the first electrode and second electrode are：
First electrode is titanium-titanium dioxide Schottky junction electrode, and second electrode is carbon-point；Or,
First electrode is carbon-point, and second electrode is titanium-titanium dioxide Schottky junction electrode；Or,
First electrode is titanium-titanium dioxide Schottky junction electrode, and second electrode is titanium-titanium dioxide Schottky junction electrode.
As a further improvement on the present invention, the incident ray is nature sunlight or artificial light source.
As a further improvement on the present invention, the photoelectric conversion component is：
One solar battery sheet；Or,
It is multiple be arranged in series be arranged in parallel or series-parallel connection arrange solar battery sheet.
Correspondingly, a kind of manufacture method of light degradation purifier, the manufacture method includes：
S1, titanium sheet is taken, Jing pickling removes the oxide layer on surface, and is made annealing treatment, in titanium plate surface one layer of cause is formed
Close titanium dioxide oxide layer, as titanium-titanium dioxide Schottky junction electrode；
S2, one photoelectric conversion component of offer；
S3, be electrically connected with first electrode and second electrode in photoelectric conversion component positive pole and negative pole, first electrode and/
Or second electrode is titanium-titanium dioxide Schottky junction electrode prepared by step S1.
As a further improvement on the present invention, the reagent of pickling is Fluohydric acid., nitric acid and water by 1 in step S1：3：6
The mixing acid reagent of ratio mixing, pickling time is 1~100s.
As a further improvement on the present invention, make annealing treatment in step S1 is carried out in resistance furnace.
As a further improvement on the present invention, make annealing treatment in step S1 and be specially：
100~500 DEG C will be heated to the heating rate of 1~10 DEG C/min in resistance furnace, under air conditionses annealing 1~
10h, obtains the titanium dioxide oxide layer that thickness is 100~4000nm.
The invention also discloses a kind of purification method of light degradation purifier, the purification method includes：
First electrode and second electrode are accessed in the sewage containing Organic substance；
Using on incident ray irradiation photoelectric conversion component, light degradation is carried out to sewage.
As a further improvement on the present invention, the purification method also includes：
Sodium Chloride is added in sewage, to improve the disposal efficiency.
The invention has the beneficial effects as follows：
Light degradation purifier simple structure, it is convenient to prepare, and the disposal efficiency is higher, can be widely applied to photocatalysis and gives up
Water process；
Titanium-titanium dioxide Schottky junction electrode can be prepared by simple annealing and formed, and can be dropped with industrialization large-scale production
Low manufacturing cost, and improve life-span and the durability of device；
By the use of photoelectric conversion component as source collectors, the utilization rate of light source is increased, can be widely applied to industrial life
In product.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of light degradation purifier in first embodiment of the invention；
Fig. 2 a are independent metal titanium (Ti) and neighbouring independent titanium dioxide (TiO2) energy band diagram；
Fig. 2 b are titanium (Ti) and titanium dioxide (TiO2) be in close contact when energy band diagram；
Fig. 3 is the manufacture method flow chart of light degradation purifier in second embodiment of the invention；
Fig. 4 a are the disposal efficiency curve chart of light degradation purifier under different situations in first embodiment of the invention；
Fig. 4 b are the disposal efficiency curve chart of light degradation purifier under different situations in second embodiment of the invention；
Fig. 4 c are the disposal efficiency curve chart of light degradation purifier under different situations in third embodiment of the invention；
Fig. 4 d are the disposal efficiency curve chart of light degradation purifier under different situations in fourth embodiment of the invention.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
Shown in ginseng Fig. 1, a kind of light degradation purifier is disclosed in first embodiment of the invention, the light degradation purification dress
Put the first electrode 20 and second that positive pole and negative pole including photoelectric conversion component 10 and with photoelectric conversion component are electrically connected with
Electrode 30, the photoelectric conversion component 10 is used to for incident ray to be converted to photo-generated carrier (electronics or hole), first electrode 20
Titanium-titanium dioxide Schottky junction electrode is with second electrode 30, titanium-titanium dioxide Schottky junction electrode includes titanium sheet and formation
In the oxide layer of titanium plate surface.
Ginseng Fig. 2 a show independent metal titanium (Ti) and neighbouring independent titanium dioxide (TiO2) energy band diagram.The work(of metal Ti
Function q Φm=4.33ev, TiO2Work function q Φs=4.6ev, TiO2Energy gap Eg=3.2ev.
Fig. 2 b show titanium (Ti) and titanium dioxide (TiO2) be in close contact when energy band diagram.When metal Ti and quasiconductor
TiO2During close contact, the fermi level of two kinds of different materials should be identical in thermal balance, and vacuum level also must be continuous, potential barrier
Highly it is 0.27ev.
When forward bias is applied on metal Ti, then quasiconductor TiO2Barrier height to metal Ti will diminish, electronics
It is more easy to enter metal Ti by quasiconductor, and to reverse biased, then improves will potential barrier so that electronics is more difficult to from quasiconductor TiO2Enter
Enter metal Ti.
With reference to titanium (Ti) and titanium dioxide (TiO2) can band relation, the positive pole of photoelectric conversion component 10 in present embodiment
It is as follows with the course of reaction of negative pole：
Positive pole, the titanium-titanium dioxide Schottky junction electrode when incident ray is radiated on photoelectric conversion component, to positive pole
Produce positive bias, quasiconductor TiO2Barrier height to metal Ti will diminish, and be transported in metal Ti by photoelectric conversion component
Hole be more easy to by metal enter quasiconductor TiO2In valence band, quasiconductor TiO2In the electronics of conduction band is transitted to by valence band, it is and molten
Electronics in liquid is more easy to by quasiconductor TiO2Compound into metal Ti, electronics and hole is suppressed, the meeting before they are compound
A series of redox reaction of generation, the hole of valence band is good oxidant, the H with surface adsorption2O molecules or OH-Ion is sent out
Raw reaction generates the hydroxyl radical free radical of strong oxidizing property.Reaction equation is as follows：
Negative pole, the titanium-titanium dioxide Schottky junction electrode when incident ray is radiated on photoelectric conversion component, to negative pole
Produce back bias voltage, quasiconductor TiO2Barrier height to metal Ti will become big, be transported in metal Ti by photoelectric conversion component
Electronics be more difficult to by metal enter quasiconductor TiO2.By quasiconductor TiO2The electronics on conduction band is transitted in valence band due to potential barrier
Increase and be also more difficult to into metal Ti (but due to potential barrier itself is smaller so can still enter metal Ti), so quasiconductor
TiO2Hole in valence band and will be difficult to be combined into the electronics in metal Ti, hole will produce Oxidation, reaction such as positive pole.
It should be appreciated that first electrode and second electrode are with titanium-titanium dioxide schottky junction electricity in present embodiment
Extremely example is illustrated, and can also be only had an electrode in other embodiments and is set to titanium-titanium dioxide schottky junction electricity
Pole, such as first electrode are titanium-titanium dioxide Schottky junction electrode, and second electrode is carbon-point；Or, first electrode is carbon-point, second
Electrode is titanium-titanium dioxide Schottky junction electrode, can equally realize the purpose that light degradation is purified.
In addition, the photoelectric conversion component in present embodiment is solar battery sheet, such as silicon solar cell, it can
Think single solar battery sheet, or be arranged in series or be arranged in parallel or series-parallel connection arrange multiple solaodes
Piece, in can be widely applied to commercial production.
Solar battery sheet in present embodiment receives nature sunlight, and will be seen that light is converted to photo-generated carrier
(electronics or hole), effectively overcomes TiO2Band gap can only absorb ultraviolet light cause light source using it is insufficient the shortcomings of, at it
Incident ray can also be artificial light source in his embodiment.
Shown in ginseng Fig. 3, the manufacture method of light degradation purifier, specifically includes in second embodiment of the invention：
S1, titanium sheet is taken, Jing pickling removes the oxide layer on surface, and is made annealing treatment, in titanium plate surface one layer of cause is formed
Close titanium dioxide oxide layer, as titanium-titanium dioxide Schottky junction electrode；
S2, one photoelectric conversion component of offer；
S3, be electrically connected with first electrode and second electrode in photoelectric conversion component positive pole and negative pole, first electrode and
Second electrode is titanium-titanium dioxide Schottky junction electrode prepared by step S1.
Preferably, the reagent of pickling is Fluohydric acid., nitric acid and water by 1 in S1：3：The mixing acid reagent of 6 ratios mixing,
Pickling time is 1~100s.
Preferably, make annealing treatment in step S1 is carried out in resistance furnace, and annealing is specially：
100~500 DEG C will be heated to the heating rate of 1~10 DEG C/min in resistance furnace, under air conditionses annealing 1~
10h, obtains the titanium dioxide oxide layer that thickness is 100~4000nm.
Such as in a specific embodiment of the invention, step S1 is specially：
Take titanium sheet, Jing pickling removes the oxide layer on surface, the reagent of pickling is Fluohydric acid., nitric acid and water by 1：3：6 ratios
The mixing acid reagent of mixing, pickling time is to be made annealing treatment in 30s, and resistance furnace, by resistance furnace with 5 DEG C/min's
Heating rate is heated to the 6h that anneals under 400 DEG C, air conditionses, forms one layer in titanium plate surface and obtains dioxy of the thickness for 800nm
Change titanium oxide layer, as titanium-titanium dioxide Schottky junction electrode.
By generating titanium dioxide oxide layer in metallic titanium surface high annealing in present embodiment, in other embodiment
In, titanium dioxide oxide layer can also be formed by methods such as positive electricity polarization, vapour deposition or liquid depositions, herein no longer one by one
Citing is illustrated.
The purification method of the light degradation purifier in another embodiment of the present invention, the purification method includes：
The first electrode of above-mentioned purifier and second electrode are accessed in the sewage containing Organic substance；
Using on incident ray irradiation photoelectric conversion component, light degradation is carried out to sewage.
In addition, in order to improve the disposal efficiency, Sodium Chloride further can be added in sewage.
In order to verify the clean-up effect of light degradation purifier of the present invention, the photocatalysis performance of sample is to pass through in the present invention
Photocatalysis light degradation to methylene blue under light source irradiation carries out calculating checking.Wherein：
(1) object of study of light degradation reaction：Concentration is the methylene blue solution of 8mg/L, determines its UV-vis absorbing light
Spectrum；
(2) light source：40~70mW/cm of natural light2；
(3) measurement of uv-visible absorption spectra：Using Lambda 750UV/Vis/NIR type ultraviolet-visibles-near-infrared
Spectrophotometer (Perkin Elmer companies), scanning wavelength scope is 450~750nm, sweep spacing 1nm；
(4) experimental procedure：The titanium of both positive and negative polarity-titanium dioxide Schottky junction electrode (4cm × 3cm) is placed on and fills 50ml
In the container of methylene blue solution, subsequently light degradation 4 hours under natural light, are surveyed with ultraviolet-visible-near infrared spectrometer
Examination solution is initial absorbance A in the numerical values recited of the absworption peak of 663nm0, per sampling every other hour once, measure methylene blue
Solution the absworption peak of 663nm numerical values recited as the absorbance A after light degradation, the absorbance A of usual methylene blue with it is dense
Degree C is directly proportional, therefore photodegradation rate D=C/C0=A/A0。
Shown in ginseng Fig. 4 a, in first embodiment, negative pole is carbon-point, and positive pole is respectively Titanium and titanium-titanium dioxide (is moved back
400 DEG C of fiery temperature, annealing time 12h) two kinds of situations light degradation the disposal efficiency of 4 hours in the sun, it is seen then that positive pole is adopted
The disposal efficiency of titanium-titanium dioxide is apparently higher than the disposal efficiency using Titanium.
Shown in ginseng Fig. 4 b, in second embodiment, both positive and negative polarity is titanium-titanium dioxide (400 DEG C of annealing temperature, annealing time
Respectively 6h and 12h), the disposal efficiency in having the solution environmental of NaCl, it is seen then that the titanium-titanium dioxide of annealing time 6h
The disposal efficiency higher than annealing time 12h titanium-titanium dioxide.
Shown in ginseng Fig. 4 c, in 3rd embodiment, both positive and negative polarity is titanium-titanium dioxide, and (annealing time is 6h, annealing temperature
Respectively 400 DEG C and 450 DEG C), the disposal efficiency in the solution environmental without NaCl, it is seen then that the titanium that 450 DEG C of annealing temperature-
Titanium-titanium dioxide of the disposal efficiency of titanium dioxide higher than 400 DEG C of annealing temperature.
Shown in ginseng Fig. 4 d, in fourth embodiment, including following situations：
1st, negative pole is carbon-point, just extremely Titanium, in the solution environmental without NaCl；
2nd, negative pole is carbon-point, just extremely Titanium, in having the solution environmental of NaCl；
3rd, negative pole is carbon-point, just extremely titanium-titanium dioxide, in the solution environmental without NaCl；
4th, negative pole is carbon-point, just extremely titanium-titanium dioxide, in having the solution environmental of NaCl；
5th, both positive and negative polarity is titanium-titanium dioxide, in the solution environmental without NaCl；
6th, both positive and negative polarity is titanium-titanium dioxide, in having the solution environmental of NaCl；
Wherein, 400 DEG C of the annealing temperature of metallic titanium surface titanium dioxide, annealing time 12h, it is seen then that the disposal efficiency is big
Little relation is the ＜ 6 of 1 ＜, 2 ＜, 3 ＜, 4 ＜ 5, and both positive and negative polarity adopts titanium-titanium dioxide, and has light drop in the solution environmental of NaCl
Solution, its disposal efficiency highest.
The present invention arranges titanium-titanium dioxide Schottky junction electrode by the both positive and negative polarity in photoelectric conversion component, is turned by photoelectricity
Change component and photo-generated carrier is provided, and be transported in the titanium-titanium dioxide Schottky junction electrode being placed in solution, it is to avoid solution
Corrosion to photoelectric conversion component, has the advantages that low cost, high efficiency, easily promotes.
As can be seen from the above technical solutions, the invention has the advantages that：
Light degradation purifier simple structure, it is convenient to prepare, and the disposal efficiency is higher, can be widely applied to photocatalysis and gives up
Water process；
Titanium-titanium dioxide Schottky junction electrode can be prepared by simple annealing and formed, and can be dropped with industrialization large-scale production
Low manufacturing cost, and improve life-span and the durability of device；
By the use of photoelectric conversion component as source collectors, the utilization rate of light source is increased, can be widely applied to industrial life
In product.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that for clarity those skilled in the art should
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (10)
1. a kind of light degradation purifier, it is characterised in that the light degradation purifier includes photoelectric conversion component, Yi Jiyu
First electrode and second electrode that the positive pole of photoelectric conversion component and negative pole are electrically connected with, the photoelectric conversion component is used to enter
Penetrate light and be converted to photo-generated carrier, the first electrode and/or second electrode are titanium-titanium dioxide Schottky junction electrode, titanium-
Titanium dioxide Schottky junction electrode includes titanium sheet and is formed at the titanium dioxide oxide layer of titanium plate surface.
2. light degradation purifier according to claim 1, it is characterised in that the first electrode and second electrode are：
First electrode is titanium-titanium dioxide Schottky junction electrode, and second electrode is carbon-point；Or,
First electrode is carbon-point, and second electrode is titanium-titanium dioxide Schottky junction electrode；Or,
First electrode is titanium-titanium dioxide Schottky junction electrode, and second electrode is titanium-titanium dioxide Schottky junction electrode.
3. light degradation purifier according to claim 1, it is characterised in that the incident ray be nature sunlight or
Artificial light source.
4. light degradation purifier according to claim 1, it is characterised in that the photoelectric conversion component is：
One solar battery sheet；Or,
It is multiple be arranged in series be arranged in parallel or series-parallel connection arrange solar battery sheet.
5. a kind of manufacture method of the light degradation purifier as any one of Claims 1 to 4, it is characterised in that institute
Stating manufacture method includes：
S1, titanium sheet is taken, Jing pickling removes the oxide layer on surface, and is made annealing treatment, in titanium plate surface one layer of densification is formed
Titanium dioxide oxide layer, as titanium-titanium dioxide Schottky junction electrode；
S2, one photoelectric conversion component of offer；
S3, it is electrically connected with first electrode and second electrode, first electrode and/or in photoelectric conversion component positive pole and negative pole
Two electrodes are titanium-titanium dioxide Schottky junction electrode prepared by step S1.
6. the manufacture method of light degradation purifier according to claim 5, it is characterised in that pickling in step S1
Reagent be Fluohydric acid., nitric acid and water by 1：3：The mixing acid reagent of 6 ratios mixing, pickling time is 1~100s.
7. the manufacture method of light degradation purifier according to claim 5, it is characterised in that anneal in step S1
Process is carried out in resistance furnace.
8. the manufacture method of light degradation purifier according to claim 7, it is characterised in that anneal in step S1
Process is specially：
100~500 DEG C will be heated to the heating rate of 1~10 DEG C/min in resistance furnace, anneal 1~10h under air conditionses, obtains
Obtain the titanium dioxide oxide layer that thickness is 100~4000nm.
9. a kind of purification method of the light degradation purifier as any one of Claims 1 to 4, it is characterised in that institute
Stating purification method includes：
First electrode and second electrode are accessed in the sewage containing Organic substance；
Using on incident ray irradiation photoelectric conversion component, light degradation is carried out to sewage.
10. the purification method of light degradation purifier according to claim 9, it is characterised in that the purification method is also
Including：
Sodium Chloride is added in sewage, to improve the disposal efficiency.
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| CN101353186A (en) * | 2008-09-18 | 2009-01-28 | 上海交通大学 | Double turntable light-sensitive cell liquid membrane reactor photocatalysis organic wastewater processing method |
| CN101693560A (en) * | 2009-10-21 | 2010-04-14 | 华北水利水电学院 | Integral solar energy photoelectricity water-treatment device |
| CN102603037A (en) * | 2012-04-01 | 2012-07-25 | 南京工业大学 | Organic wastewater treatment film reactor utilizing sunlight-assisted electro-catalysis |
| CN105198050A (en) * | 2015-09-09 | 2015-12-30 | 北京航空航天大学 | Preparation method of ti-based stannic oxide anodizing electrode with high stability |
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| CN101353186A (en) * | 2008-09-18 | 2009-01-28 | 上海交通大学 | Double turntable light-sensitive cell liquid membrane reactor photocatalysis organic wastewater processing method |
| CN101693560A (en) * | 2009-10-21 | 2010-04-14 | 华北水利水电学院 | Integral solar energy photoelectricity water-treatment device |
| CN102603037A (en) * | 2012-04-01 | 2012-07-25 | 南京工业大学 | Organic wastewater treatment film reactor utilizing sunlight-assisted electro-catalysis |
| CN105198050A (en) * | 2015-09-09 | 2015-12-30 | 北京航空航天大学 | Preparation method of ti-based stannic oxide anodizing electrode with high stability |
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