CN106111158B - The method for improveing photocatalyst activity - Google Patents
The method for improveing photocatalyst activity Download PDFInfo
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- CN106111158B CN106111158B CN201610458531.4A CN201610458531A CN106111158B CN 106111158 B CN106111158 B CN 106111158B CN 201610458531 A CN201610458531 A CN 201610458531A CN 106111158 B CN106111158 B CN 106111158B
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- ion solution
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- copper ion
- photochemical catalyst
- copper
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 22
- 230000000694 effects Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 60
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 56
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000002035 prolonged effect Effects 0.000 claims abstract description 24
- 229910052709 silver Inorganic materials 0.000 claims abstract description 20
- 239000004332 silver Substances 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000006872 improvement Effects 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- -1 silver ions Chemical class 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 230000005284 excitation Effects 0.000 abstract description 10
- 239000000243 solution Substances 0.000 description 53
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 24
- 239000004408 titanium dioxide Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 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 4
- 230000005684 electric field Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229960000907 methylthioninium chloride Drugs 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
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
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8926—Copper and noble metals
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Physical Water Treatments (AREA)
Abstract
A kind of method of improvement photocatalyst activity of disclosure of the invention, includes the following steps：(1) copper ion solution and silver ion solution are prepared, copper ion concentration is more than 0.1ppm in copper ion solution, and concentration of silver ions is more than 0.1ppm in silver ion solution, places respectively in different containers；(2) photochemical catalyst is first put into copper ion solution, for 24 hours with ultraviolet source prolonged exposure 1h；(3) photochemical catalyst is placed into silver ion solution, for 24 hours with ultraviolet source prolonged exposure 1h；(4) it takes out photochemical catalyst and cleans, dries.In step (1), the copper ion solution and the silver ion solution are obtained using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body；In step (2), photochemical catalyst is put into after being solidificated in carrier in copper ion solution, and is totally submerged.This method avoid excitation electronics again rebound valence band, to improve the efficiency of photochemical catalyst.
Description
Technical field
The present invention relates to photocatalyst technology field, more particularly to a kind of method of improvement photocatalyst activity.
Background technology
Photochemical catalyst is exactly the general designation for the chemical substance that catalytic action can be played under the excitation of photon.It can make in the world
It is numerous for the material of photocatalyst, including titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), zirconium dioxide
(ZrO2), many oxides sulfide semiconductor such as cadmium sulfide (CdS), wherein titanium dioxide (Titanium Dioxide) because
Its oxidability is strong, and chemical property is stablized nontoxic, becomes most important nano-photo catalytic agent material in the world.Photochemical catalyst is in water
Processing, air purification field are extensively studied and are applied.
But since the catalytic efficiency of photochemical catalyst is not high, the development and popularization of nano photo-catalytic technology restrict always.
Improvement titanium dioxide itself is characterized in the striving direction of a promotion photochemical catalyst efficiency, in titanium dioxide surface adhesion metal
It is exactly one of them important developing direction.
Invention content
The technical problem to be solved in the present invention is to provide it is a kind of improvement photocatalyst activity method, can effectively avoid by
Electronics rebound valence band again is excited, to significantly improve the efficiency of photochemical catalyst.
In order to solve the above-mentioned technical problem, technical scheme is as follows：
A method of improvement photocatalyst activity includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is more than 0.1ppm, silver ion in copper ion solution
Concentration of silver ions is more than 0.1ppm in solution, places respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, with ultraviolet source prolonged exposure 1h-24h；
S3, photochemical catalyst is placed into silver ion solution, with ultraviolet source prolonged exposure 1h-24h；
S4, it takes out photochemical catalyst and cleans, dries.
In the step S1, the copper ion is obtained using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body
Solution and the silver ion solution；In the step S2, the photochemical catalyst is solidificated in after carrier that be put into the copper ion molten
In liquid, and it is totally submerged.
Optionally, in above-mentioned steps, it is less than 387nm's that the ultraviolet wavelength of ultraviolet source, which is the ultraviolet source,
Ultraviolet light.
The optimal technical scheme of the present invention is as follows：
A method of improvement photocatalyst activity includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is 0.5ppm in copper ion solution, and silver ion is molten
Concentration of silver ions is 0.25ppm in liquid, is placed respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength；
S3, photochemical catalyst is placed into silver ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength；
S4, it takes out photochemical catalyst and cleans, dries.
In the step S1, the copper ion is obtained using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body
Solution and the silver ion solution；In the step S2, the photochemical catalyst is solidificated in after carrier that be put into the copper ion molten
In liquid, and it is totally submerged.
Another optimal technical scheme of the present invention is as follows：
A method of improvement photocatalyst activity includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is 1ppm, silver ion solution in copper ion solution
Middle concentration of silver ions is 0.5ppm, is placed respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength；
S3, photochemical catalyst is placed into silver ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength；
S4, it takes out photochemical catalyst and cleans, dries.
In the step S1, the copper ion is obtained using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body
Solution and the silver ion solution；In the step S2, the photochemical catalyst is solidificated in after carrier that be put into the copper ion molten
In liquid, and it is totally submerged.
The wavelength of ultraviolet light and the size of energy are inversely proportional.The band gap of titanium dioxide optical catalyst is 3.2ev, is more than
The UV photons of 387nm cannot provide enough energy to the electronics of valence band makes it jump to conduction band.Conversely, being less than or equal to
The ultraviolet light of 387nm can excite the catalytic activity of photochemical catalyst.Therefore, the ultraviolet light less than or equal to 387nm can all meet this
Demand of the invention to photon.For the photochemical catalyst of non-titanium dioxide, upper limit wavelength is determined by its band gap, is not necessarily 387nm.
With existing ultraviolet radiator technology, the most commonly used is 185nm and 254nm, under conditions of equal-wattage, above two
Ultraviolet radiator is easiest to obtain, and the absorbance of solution is directly proportional to effects of ion concentration.Therefore, it is obtained by Test Summary
The preferred technical solution of above-mentioned two.
Using above-mentioned technical proposal, due to successively adhering to two kinds of metals in photocatalyst surface, both metals are formed certainly
Pond is generated electricity to constitute an electric field.When ultraviolet light irradiates titanium dioxide optical catalyst, metal of the electrons to attachment is excited
Mobile, galvanic cell shifts to form driving force for excitation electronics to water body.This avoids excitation electronics rebound valence band again, from
And improve the efficiency of photochemical catalyst.
Description of the drawings
Fig. 1 is the method flow diagram of the first improvement photocatalyst activity of the present invention；
Fig. 2 is the method flow chart of second of improvement photocatalyst activity of the present invention；
Fig. 3 is the method flow chart of the third improvement photocatalyst activity of the present invention；
Fig. 4 is the principle assumption diagram for improveing photochemical catalyst；
Fig. 5 is the opposite residual comparison degradation figure of methylene blue.
In figure, 1- titanium dioxide optical catalysts, 2- ultraviolet lights, 10-Ag；20-Cu.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in figure 4, Cu 20 and Ag 10 are attached on titanium dioxide optical catalyst 1,10 two kinds of metals of Cu 20 and Ag
Galvanic cell is formed to constitute an electric field.When ultraviolet light 2 irradiates titanium dioxide optical catalyst 1, excitation electrons are to attached
Ni metal 20 and Ag 10 movement, under the action of galvanic cell constitutes electric field, excitation electronics is shifted to water body.Here
Core is that excitation electrons are moved to the Ni metal 20 and Ag 10 of attachment.This is because (1) excitation electronics aggregation needs to expand
It dissipates；(2) galvanic cell electric field driven electronics enters water body.The access for being bonded excitation electronics and having been shifted to water body of the two
And driving force, this avoids excitation electronics again rebound valence band, to improve the efficiency of photochemical catalyst.
Embodiment one：
As shown in Figure 1, the method for the first improvement photocatalyst activity of the present invention, includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is more than 0.1ppm, silver ion in copper ion solution
Concentration of silver ions is more than 0.1ppm in solution, places respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, with ultraviolet source prolonged exposure 1h-24h；
S3, photochemical catalyst is placed into silver ion solution, with ultraviolet source prolonged exposure 1h-24h；
S4, it takes out photochemical catalyst and cleans, dries.
In step S2, photochemical catalyst is put into after being solidificated in carrier in copper ion solution, and is totally submerged.
In step S1, using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body obtain copper ion solution and
Silver ion solution.
In above-mentioned steps, ultraviolet source ultraviolet source is the ultraviolet light less than 387nm.
Embodiment two：
As shown in Fig. 2, the optimal technical scheme of the present invention is as follows：
A method of improvement photocatalyst activity includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is 0.5ppm in copper ion solution, and silver ion is molten
Concentration of silver ions is 0.25ppm in liquid, is placed respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength；
S3, photochemical catalyst is placed into silver ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength；
S4, it takes out photochemical catalyst and cleans, dries.
In step S1, using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body obtain copper ion solution and
Silver ion solution；In step S2, photochemical catalyst is put into after being solidificated in carrier in copper ion solution, and is totally submerged.Embodiment three：
As shown in figure 3, another optimal technical scheme of the present invention is as follows：
A method of improvement photocatalyst activity includes the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is 1ppm, silver ion solution in copper ion solution
Middle concentration of silver ions is 0.5ppm, is placed respectively in different containers；
S2, photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength；
S3, photochemical catalyst is placed into silver ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength；
S4, it takes out photochemical catalyst and cleans, dries.
In step S1, using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body obtain copper ion solution and
Silver ion solution；In step S2, photochemical catalyst is put into after being solidificated in carrier in copper ion solution, and is totally submerged.Ultraviolet light
The size of wavelength and energy is inversely proportional.The band gap of titanium dioxide optical catalyst is 3.2ev, and the UV photons more than 387nm are not
Enough energy, which can be provided, to the electronics of valence band makes it jump to conduction band.Conversely, the ultraviolet light less than or equal to 387nm can excite
The catalytic activity of photochemical catalyst.Therefore, the ultraviolet light less than or equal to 387nm can all meet the needs of present invention is to photon.For
The photochemical catalyst of non-titanium dioxide, upper limit wavelength is determined by its band gap, is not necessarily 387nm.
With existing ultraviolet radiator technology, the most commonly used is 185nm and 254nm, under conditions of equal-wattage, above two
Ultraviolet radiator is easiest to obtain, and the absorbance of solution is directly proportional to effects of ion concentration.Therefore, it is obtained by Test Summary
The preferred technical solution of above-mentioned two.
Using the method for improveing photocatalyst activity in the present invention, following contrast experiment has been carried out：(1) adhere to without metal
(blank), (2) adhere to copper, (3) attachment copper and solidification photochemical catalyst silver-colored, after (4) attachment silver and decompose methylene blue.Concrete operations
Steps are as follows：
First, the solidification of photochemical catalyst：By A, tri- pieces of 10*10cm of B, C, the aluminium sheet of 0.5mm thickness is as substrate, in substrate one
The first gluing of a surface is dried 2 hours under 120 degree；Then in second of same surface gluing, room temperature, which sets aside to surface, not to be had
Until the gloss of liquid；Photochemical catalyst is coated in glue surface, is dried 2 hours under 120 degree；Every piece of solidification there is into photochemical catalyst
Aluminium sheet be accurately cut into 4 parts (5*5cm), overleaf mark：A1,A2,A3,A4；B1,B2,B3,B4；C1,C2,C3,C4.
Second, substrate A2, B2, C2 are put into 200ml beakers, coiling length is 600mm's on the ultraviolet lamp of 185nm
19 sections are 2.5mm2Copper wire, ultraviolet lamp is placed in beaker, injection conductivity be 102.3uS/cm water, by substrate
It is submerged with copper wire, ultraviolet lamp opens prolonged exposure 3 hours.
Substrate A4, B4, C4 are put into 200ml beakers by third, and coiling length is 1000mm on the ultraviolet lamp of 185nm
The filamentary silver of 1 long a diameter of 0.8mm, ultraviolet lamp is placed in beaker, the water that injection conductivity is 102.3uS/cm, by base
Plate and filamentary silver submerge, and ultraviolet lamp opens prolonged exposure 4 hours.
4th, substrate A3, B3, C3 are put into 200ml beakers first, coiling length is on the ultraviolet lamp of 185nm
19 sections of 600mm are 2.5mm2Copper wire, ultraviolet lamp is placed in beaker, injection conductivity is 102.3uS/cm
Water submerges substrate and copper wire, and ultraviolet lamp opens prolonged exposure 3 hours.
Secondly, substrate A3, B3, C3 are put into another 200ml beaker, coiling length is on the ultraviolet lamp of 185nm
The filamentary silver of 1 a diameter of 0.8mm of 1000mm long, ultraviolet lamp is placed in beaker, and injection conductivity is 102.3uS/cm's
Water submerges substrate and filamentary silver, and ultraviolet lamp opens prolonged exposure 4 hours.
Utilize the A1, A2, A3, A4 of gained above；B1,B2,B3,B4；It is (empty without metal attachment on C1, C2, C3, C4
In vain), the solidification photochemical catalyst adhered to after copper, attachment copper and silver, attachment silver decomposes methylene blue, obtains degradation as shown in Figure 5
Curve shows that the opposite residual of methylene blue significantly reduces after adhering to copper and silver.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (4)
1. a kind of method of improvement photocatalyst activity, it is characterised in that：Include the following steps：
S1, copper ion solution and silver ion solution are prepared, copper ion concentration is more than 0.1ppm, the silver in the copper ion solution
Concentration of silver ions is more than 0.1ppm in solion, places respectively in different containers；
S2, photochemical catalyst is first put into the copper ion solution, with ultraviolet source prolonged exposure 1h-24h；
S3, the photochemical catalyst is placed into the silver ion solution, with ultraviolet source prolonged exposure 1h-24h；
S4, it takes out the photochemical catalyst and cleans, dries；
In the step S1, the copper ion solution is obtained using ultraviolet radiator direct irradiation copper body submerged in water and silver-colored body
And the silver ion solution；In the step S2, the photochemical catalyst is put into after being solidificated in carrier in the copper ion solution,
And it is totally submerged.
2. a kind of method of improvement photocatalyst activity according to claim 1, it is characterised in that：The ultraviolet source is
Ultraviolet light less than 387nm.
3. a kind of method of improvement photocatalyst activity according to claim 1 or 2, it is characterised in that：Including following step
Suddenly：
The step S1 is to prepare copper ion solution and silver ion solution, and copper ion concentration is 0.5ppm, silver in copper ion solution
Concentration of silver ions is 0.25ppm in solion, is placed respectively in different containers；
The step S2 is that photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength；
The S3 is to place into photochemical catalyst in silver ion solution, the ultraviolet source prolonged exposure 3h for being 185nm with wavelength.
4. a kind of method of improvement photocatalyst activity according to claim 1 or 2, it is characterised in that：Including following step
Suddenly：
The S1 is to prepare copper ion solution and silver ion solution, and copper ion concentration is 1ppm in copper ion solution, and silver ion is molten
Concentration of silver ions is 0.5ppm in liquid, is placed respectively in different containers；
The S2 is that photochemical catalyst is first put into copper ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength；
The S3 is to place into photochemical catalyst in silver ion solution, the ultraviolet source prolonged exposure 3h for being 254nm with wavelength.
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| CN101024180A (en) * | 2007-02-25 | 2007-08-29 | 广州门德纳米科技有限公司 | Photo-catalyst micro-particles and its preparing method, photocatalyst and preparing method and use |
| CN101497038A (en) * | 2008-11-12 | 2009-08-05 | 湖南城市学院 | Nano titanic oxide photocatalyst responding to visible light and preparation method thereof |
| CN102513103A (en) * | 2011-11-14 | 2012-06-27 | 浙江大学 | Preparation method of surfactant for photo-reduction method of Ag/TiO2 nano heterogenous junction by virtue of induction |
| CN102861603A (en) * | 2012-09-20 | 2013-01-09 | 安徽工程大学 | Preparation method of metal-nonmetal-codoped nano-titanium dioxide photocatalyst |
| CN104071879A (en) * | 2014-06-27 | 2014-10-01 | 深圳市开天源自动化工程有限公司 | Method for continuously separating out copper ions from copper body under induction of ultraviolet light source |
| CN104353468A (en) * | 2014-11-28 | 2015-02-18 | 陕西科技大学 | Copper-silver double-doped TiO2 photocatalytic material and preparation method thereof |
-
2016
- 2016-06-22 CN CN201610458531.4A patent/CN106111158B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024180A (en) * | 2007-02-25 | 2007-08-29 | 广州门德纳米科技有限公司 | Photo-catalyst micro-particles and its preparing method, photocatalyst and preparing method and use |
| CN101497038A (en) * | 2008-11-12 | 2009-08-05 | 湖南城市学院 | Nano titanic oxide photocatalyst responding to visible light and preparation method thereof |
| CN102513103A (en) * | 2011-11-14 | 2012-06-27 | 浙江大学 | Preparation method of surfactant for photo-reduction method of Ag/TiO2 nano heterogenous junction by virtue of induction |
| CN102861603A (en) * | 2012-09-20 | 2013-01-09 | 安徽工程大学 | Preparation method of metal-nonmetal-codoped nano-titanium dioxide photocatalyst |
| CN104071879A (en) * | 2014-06-27 | 2014-10-01 | 深圳市开天源自动化工程有限公司 | Method for continuously separating out copper ions from copper body under induction of ultraviolet light source |
| CN104353468A (en) * | 2014-11-28 | 2015-02-18 | 陕西科技大学 | Copper-silver double-doped TiO2 photocatalytic material and preparation method thereof |
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| CN106111158A (en) | 2016-11-16 |
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