CN105944724A - Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof - Google Patents
Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof Download PDFInfo
- Publication number
- CN105944724A CN105944724A CN201610430483.8A CN201610430483A CN105944724A CN 105944724 A CN105944724 A CN 105944724A CN 201610430483 A CN201610430483 A CN 201610430483A CN 105944724 A CN105944724 A CN 105944724A
- Authority
- CN
- China
- Prior art keywords
- cu2o
- visible light
- photocatalyst
- deionized water
- preparation
- 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
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 19
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 title claims abstract description 18
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 16
- 238000004065 wastewater treatment Methods 0.000 title abstract 3
- 239000010949 copper Substances 0.000 claims abstract description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000012153 distilled water Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 8
- 239000002516 radical scavenger Substances 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 6
- 229940123457 Free radical scavenger Drugs 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 5
- 229910021592 Copper(II) chloride Inorganic materials 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 239000006100 radiation absorber Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 229910001868 water Inorganic materials 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 abstract description 5
- 229940012189 methyl orange Drugs 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 231100000987 absorbed dose Toxicity 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013068 control sample Substances 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 150000003254 radicals Chemical group 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 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 1
- 239000005751 Copper oxide Substances 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- -1 Methyl Chemical group 0.000 description 1
- SOAGOCJXMJUWQY-UHFFFAOYSA-N [O-2].[Ti+4].[Cu]=O.[O-2] Chemical compound [O-2].[Ti+4].[Cu]=O.[O-2] SOAGOCJXMJUWQY-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- B01J23/72—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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- B01J35/30—
-
- B01J35/39—
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
The invention relates to a Cu2O visible-light-induced photocatalyst for wastewater treatment and a preparing method and application thereof. A copper source, NaOH and the surface active agent SDS are dissolved in deionized water with the gamma radiation method, a certain amount of isopropanol is added to form blue turbid liquid, a wide-mouth bottle is filled with the blue turbid liquid, then sealed and placed in a 60 Co gamma radiation source, irradiation absorbed dose rate is 30 Gy min<-1>, and time is 64-72 h; after radiation, lateritious sediment at the bottom of the bottle is collected, washed several times with distilled water and ethyl alcohol, placed in an oven which is 50 DEG C and then dried in the air for 24 h to obtain a Cu2O product for wastewater treatment. The Cu2O product has excellent photocatalytic performance under the visible light condition, the degradation rate of methyl orange within 17 min can reach 94%, and reaction rate is 3.38 micromole.L<-1>.min<-1>. The preparing process is simple, cost is low, and prepared Cu2O has high photocatalytic activity and repeatability.
Description
Technical field
The present invention relates to photocatalyst preparation field, be specifically related to a kind of Cu processed for waste water2O visible light catalyst and preparation method thereof.
Background technology
Visible light catalytic oxidation technology is considered as to solve the method for the great prospect of solvable organic pollution in waste water.Although titanium dioxide has the photocatalytic activity of excellence to be widely studied, but bigger energy gap determines it applies on visible light catalytic and have significant limitation.Therefore, other metal-oxides and compound are widely studied and expect the visible light catalyst as potential application.
Red copper oxide (Cu2O) being a kind of important direct band gap p-type metal oxide semiconductor, band gap width is 2.17 eV, has optical activity in visible-range, it is possible to effectively utilize solar energy.Due to its cheap preparation price, good environment capacitive, it it is a kind of visible light catalyst with potential application.The Cu of micro-nano size2O granule has higher photocatalytic activity compared to its bulk.
Xu etc., Wu etc. utilize electro-deposition method to grown Cu at substrate surface2O microcrystal grain thin film, and controllable adjustment Cu2O crystal morphology, prepared sample has certain photocatalytic activity under visible light, can degrade the methylene blue less than 10% through the radiation of visible light of 1 hour.
Shoeib etc. are electrochemically prepared for Cu2O manocrystalline powders, and have studied its photocatalysis performance to methyl orange, result shows its Cu synthesized2O to the decolouring of methyl orange mainly due to surface adsorption effect, and Cu2O is unstable in light-catalyzed reaction, can be oxidized to CuO and Cu (OH) by photoetch2And lose photocatalytic activity.
The presently disclosed patent relevant with the present invention has:
A kind of CuO/TiO of Wujiang of Shanghai University Of Electric Power et al. invention2Photocatalyst and preparation method, application number 201510225398, the degradation capability of the copper oxide titanium dioxide mixture that this patent system is standby derives from titanium dioxide or copper oxide uncertain.
A kind of Red copper oxide/copper tiny balloon of Tao Feifei of Shaoxing University et al. invention and preparation method and application, application number 201510177550, standby Red copper oxide/copper the tiny balloon of this patent system is structure that nanoparticle is constructed, that have porous surface, and shows good photocatalytic activity.
Presently disclosed patent inquires the Cu about various structures2O preparation method and application, or Cu2The preparation method of O and other compound composite materials and photocatalysis performance, not yet inquire about Cu2The preparation of O corner cut octahedron nanostructured and the publication of visible light catalytic application aspect thereof.
Cu oxide photocatalyst exists that visible light catalytic performance is low, catalytic effect is unstable, needs are with the use of oxidant such as H2O2Etc. problem, in the urgent need to seeking a kind of low cost, preparation method process is simple, the high efficiency photocatalyst that is applicable under visible light conditions.In this method, we have synthesized and have had the octahedral Cu of corner cut2O crystallite, and there is the most excellent and the most stable visible light catalytic performance.
Summary of the invention
The invention provides a kind of Cu2O visible light catalyst of processing for waste water of Cu2O processed for waste water and preparation method thereof.This method preparation technology is simple, low cost, and obtained photocatalyst is the high efficiency photocatalyst under visible light conditions.
The technical solution adopted in the present invention is as follows for achieving the above object:
A kind of Cu processed for waste water2O visible light catalyst, its synthetic method comprises the steps:
(1) during Jiang Tongyuan is dissolved into deionized water, adding NaOH solution, pH is 12-13, and described copper ion predecessor is CuCl2Or CuSO4In one, described copper source, NaOH, the usage amount of deionized water, by the Cu in copper source2+:OH–:H2O is 0.0016mol:0.0029 ~ 0.0034mol:40mL；
(2) adding anion surfactant, continuously stirred make it dissolve, described anion surfactant is sodium lauryl sulphate (sodium dodecyl sulfate, SDS)；
(3) being placed into gamma emitter after adding alcohols free radical scavenger, irradiation obtains brick-red precipitation after terminating, described alcohols free radical scavenger is isopropanol, and isopropanol is 5-12:30-40 with the volume ratio of the deionized water in dissolving copper source in step (1)；Described gamma emitter is60Co-gamma emitter, radiation absorber dose rate is 30 Gy min-1, time a length of 64-72 h；
(4) through distilled water and ethanol purge, after drying, products therefrom is Cu2O photocatalyst, the described solid-liquid separation condition used of cleaning is that 4000rpm is centrifuged 5-10min, and described drying is that 50-60 DEG C of air is dried 24 hours.
The Cu prepared2The application in terms of organic sewage degradation treatment of the O photocatalyst.
Beneficial effect
Cu prepared by the inventive method2O photocatalyst has the octahedral pattern of corner cut, and particle diameter is distributed in 600nm ~ 1000 nm, and it exposes crystal face is { 111}, { 100}.Having visible light catalysis activity, be used as the degraded aqueous solution containing methyl orange, under the above illumination condition of 450nm wavelength, in 17 minutes, the degradation rate of methyl orange reaches 94%, and reaction rate is 3.38 μm ol L-1∙min-1, there is in terms of organic sewage degradation treatment potential application.Preparation method process of the present invention is simple, low cost, prepared Cu2O visible light catalysis activity is high, reusability is good.
Accompanying drawing explanation
Fig. 1 is the Cu obtained by embodiment one2The XRD figure sample of O sample；
Fig. 2 is the Cu obtained by embodiment one2The SEM figure of O sample；
Fig. 3 is Cu in Application Example2O photocatalyst methyl orange solution uv-visible absorption spectra under visible ray (450nm)；
Fig. 4 is Cu in Application Example2O photocatalyst and control sample are to methyl orange solution time-evolution figure (as described in Application Example) of concentration degraded under visible ray (450nm), wherein (a) is without any photocatalyst control sample, b (), for adding commodity P25 photocatalyst, (c) is to add the Cu that the present invention prepares2O photocatalyst.
Detailed description of the invention
Below in conjunction with instantiation, the present invention is described further, but protection scope of the present invention is not limited to that, without departing from the spirit of the present invention, amendment or the replacement of being made the inventive method, condition or step belong to the scope of the present invention.
Embodiment one
0.270 gram of CuCl2•2H2O is dissolved in 40 ml deionized water, and 10 milliliters of concentration are 0.30
The SDS of the NaOH solution of M and 1.000 grams is separately added in order, and the isopropanol being subsequently adding 12 mL removes the oxidative free radical group produced in γ irradiation process as scavenger.Then, gained mixed solution stirs 15 minutes at leisure, forms uniform blue suspension.Finally, blue suspension is put into wide mouthed bottle and seals, and being placed into radiation activity is 2.22
× 1015Becquerel's (Bq)60Co gamma emitter, radiation absorber dose rate is 30 Gy min-1, time a length of 69 h.After irradiation terminates, the precipitate at the bottom of receiving flask, with distilled water and ethanol purge for several times, put into 50 ~ 60 ° of C baking ovens and be dried 24 h in atmosphere, it is thus achieved that brick-red solid powder.
Embodiment two
0.270 gram of CuCl2•2H2O is dissolved in 40 milliliters of distilled water, and 10 milliliters of concentration are 0.32
The SDS of the NaOH solution of M and 1.000 grams is separately added in order.Additionally, the isopropanol adding 9 mL removes the oxidative free radical group produced in γ irradiation process as scavenger.Then, gained mixed solution stirs 15 minutes at leisure, forms uniform blue suspension.Finally, blue suspension is put into wide mouthed bottle and seals, and being placed into radiation activity is 2.22
× 1015Becquerel's (Bq)60Co gamma emitter, radiation absorber dose rate is 30 Gy min-1, time a length of 65 h.After irradiation terminates, the precipitate at the bottom of receiving flask, with distilled water and ethanol purge for several times, put into 50 ~ 60 ° of C baking ovens and be dried 24 h in atmosphere, it is thus achieved that brick-red solid powder.
Application Example
Cu by above-described embodiment 1 gained2O photocatalyst is for methyl orange solution of degrading under visible light, and concrete mode is as follows:
Light source uses 500 watts of xenon lamps, and is equipped with optical filter and filters out wavelength less than the light of 450 nanometers.By the Cu prepared by 10mg2It is 20 mg L that O powder joins 20mL initial concentration-1Methyl orange solution formed suspension, suspension is contained in the reaction tube that quartz is made, and supersound process 30s makes Cu2O powder preferably disperses.Hereafter, magnetic stirring suspension 30 min, it is ensured that absorption-desorption balances.Whole process needs lucifuge, to prevent unnecessary photocatalytic degradation.Afterwards, quartz reaction test tube is placed under above-mentioned light source irradiation, and along with magnetic agitation and oxygen air-blowing (O2Air-flow is 200 mL min-1).Interval samples from reactor with the syringe of 2 mL at a fixed time.To suspension centrifugation, 20 minutes speed 4000 rpm time, obtain the supernatant, test its absorption spectrum by Shimadzu UV1800.
Claims (3)
1. the Cu processed for waste water2The preparation method of O visible light catalyst, it is characterised in that comprise the steps:
(1) during Jiang Tongyuan is dissolved into deionized water, adding NaOH solution, form blue suspension, control pH is 12-13；
(2) add anion surfactant, continuously stirred make it dissolve；
(3) being placed into gamma emitter after adding alcohols free radical scavenger, after irradiation terminates, filter, it is thus achieved that brick-red precipitation, alcohols free radical scavenger is (5-12) with the volume ratio of the deionized water in dissolving copper source in step (1): (30-40)；
(4) the brick-red precipitation obtained by distilled water and ethanol purge step (3), after drying, products therefrom is Cu2O photocatalyst.
A kind of Cu processed for waste water the most according to claim 12The preparation method of O visible light catalyst
, it is characterised in that:
Copper source described in step (1) is CuCl2Or CuSO4In one, described copper source, NaOH, the usage amount of deionized water, by the Cu in copper source2+:OH–:H2O is 0.0016mol:0.0029 ~ 0.0034mol:40mL；
Described in step (2), anion surfactant is sodium lauryl sulphate；
Alcohols free radical scavenger described in step (3) is isopropanol, and isopropanol is (5-12) with the volume of deionized water: (30-40), described gamma emitter is60Co
-gamma emitter, radiation absorber dose rate is 30 Gy min-1,
Shi Changwei 64-72 h；
The solid-liquid separation condition used of cleaning described in step (4) is that 4000rpm is centrifuged 5-10min, and described drying is that 50-60 DEG C of air is dried 24 hours.
3. a kind of Cu processed for waste water described in a claim 12The Cu that the preparation method of O visible light catalyst prepares2O photocatalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430483.8A CN105944724A (en) | 2016-06-15 | 2016-06-15 | Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430483.8A CN105944724A (en) | 2016-06-15 | 2016-06-15 | Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105944724A true CN105944724A (en) | 2016-09-21 |
Family
ID=56906473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610430483.8A Pending CN105944724A (en) | 2016-06-15 | 2016-06-15 | Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105944724A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240190A (en) * | 2019-06-26 | 2019-09-17 | 东北大学 | One kind preparing photochemical catalyst Cu based on the recycling of copper cutting waste material2The method of O |
| CN111892078A (en) * | 2020-07-07 | 2020-11-06 | 江苏理工学院 | Method for preparing nano copper oxide by microwave hydrothermal method and application of nano copper oxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690891A (en) * | 2009-09-25 | 2010-04-07 | 南京大学 | Synthetic method of visible light catalyst SnWO4 |
-
2016
- 2016-06-15 CN CN201610430483.8A patent/CN105944724A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690891A (en) * | 2009-09-25 | 2010-04-07 | 南京大学 | Synthetic method of visible light catalyst SnWO4 |
Non-Patent Citations (1)
| Title |
|---|
| 海子彬: "金铜双金属纳米颗粒修饰二氧化钛和铜基光催化剂的制备及应用基础研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240190A (en) * | 2019-06-26 | 2019-09-17 | 东北大学 | One kind preparing photochemical catalyst Cu based on the recycling of copper cutting waste material2The method of O |
| CN111892078A (en) * | 2020-07-07 | 2020-11-06 | 江苏理工学院 | Method for preparing nano copper oxide by microwave hydrothermal method and application of nano copper oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Danwittayakul et al. | Enhancement of photocatalytic degradation of methyl orange by supported zinc oxide nanorods/zinc stannate (ZnO/ZTO) on porous substrates | |
| Zhang et al. | Preparation of nanosized Bi3NbO7 and its visible-light photocatalytic property | |
| Gao et al. | Sonocatalytic performance of Er3+: YAlO3/TiO2–Fe2O3 in organic dye degradation | |
| CN102380366B (en) | Bismuth and silicon doped nano titanium dioxide photocatalyst, preparation and application thereof | |
| CN108187687B (en) | Preparation method of photo-Fenton catalyst | |
| Mertah et al. | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@ CuCo2O4 catalysts under simulated solar light | |
| CN103447038B (en) | Preparation method of mesoporous TiO2 supported nano-iron catalyst | |
| Le et al. | Enhanced photocatalytic activity of ZnO nanoparticles by surface modification with KF using thermal shock method | |
| CN113731430B (en) | Double Z-type CuO/CuBi 2 O 4 /Bi 2 O 3 Composite photocatalyst, preparation method and application thereof | |
| CN107311263B (en) | Method for treating wastewater containing chromium ions and by-producing chromium-containing catalyst | |
| Zheng et al. | Efficient solar-light photodegradation of tetracycline hydrochloride using BiVO4/MoO3 composites | |
| CN104226340B (en) | Visible light nano composite photo-catalyst AgCl-SnO 2preparation method | |
| CN108502922B (en) | Anatase titanium dioxide microsphere and preparation method thereof | |
| CN108298591B (en) | synthesis method and application of hexagonal iron titanate nanosheet material | |
| Wang et al. | Heterostructured Ag3PO4/TiO2 film with high efficiency for degradation of methyl orange under visible light | |
| Heidarineko et al. | P-type semiconducting NiO nanoparticles synthesis and its photocatalytic activity | |
| Hakki et al. | Sonophotocatalytic treatment of wastewater using simulated solar light-driven Bi2O3-ZnO nanophotocatalyst sensitized with copper phthalocyanine | |
| CN105944724A (en) | Cu2O visible-light-induced photocatalyst for wastewater treatment and preparing method thereof | |
| Khan et al. | Preparation of Ca0. 1Cu0. 90Bi2O4 heterojunction with improved visible light photocatalytic performance of congo red: Kinetics and degradation mechanisms | |
| CN105233821A (en) | Strontium-doped and silver-doped nanometer titanium dioxide visible light catalyst | |
| WO2011102353A1 (en) | Tungsten oxide photocatalyst modified with copper ion, and process for production thereof | |
| CN104826639B (en) | Silver phosphate/reduced graphene/titanic oxide nano compound material and preparation method | |
| CN110180557B (en) | Ag2S/TiO2Preparation method and application of composite photocatalyst | |
| CN108079990B (en) | Titanium dioxide coated copper nano composite material and preparation method and application thereof | |
| CN113893839B (en) | Preparation method of photocatalytic material for purifying indoor air |
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: 20160921 |