CN106984335B - A kind of CdS/GE/Fe2O3The preparation method of composite photo-catalyst - Google Patents
A kind of CdS/GE/Fe2O3The preparation method of composite photo-catalyst Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000013225 prussian blue Substances 0.000 claims abstract description 29
- 229960003351 prussian blue Drugs 0.000 claims abstract description 29
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000008367 deionised water Substances 0.000 claims abstract description 21
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 21
- 229920002518 Polyallylamine hydrochloride Polymers 0.000 claims abstract description 18
- 239000000047 product Substances 0.000 claims abstract description 13
- 239000012467 final product Substances 0.000 claims abstract description 12
- 238000010792 warming Methods 0.000 claims abstract description 12
- 239000006185 dispersion Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 5
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 32
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000012298 atmosphere Substances 0.000 claims description 3
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- -1 Graphite alkene Chemical class 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 239000012300 argon atmosphere Substances 0.000 abstract description 10
- 239000002105 nanoparticle Substances 0.000 abstract description 7
- 239000003054 catalyst Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- 239000002114 nanocomposite Substances 0.000 abstract description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 abstract description 2
- 229940043267 rhodamine b Drugs 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 2
- AJVCUHHHRPBRHU-UHFFFAOYSA-N cadmium nitric acid Chemical compound [Cd].[N+](=O)(O)[O-] AJVCUHHHRPBRHU-UHFFFAOYSA-N 0.000 abstract 1
- 238000001027 hydrothermal synthesis Methods 0.000 abstract 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 11
- YKYOUMDCQGMQQO-UHFFFAOYSA-L Cadmium chloride Inorganic materials Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000001699 photocatalysis Effects 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/043—Sulfides with iron group metals or platinum group 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
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention belongs to nanocomposite preparation field, in particular to graphene (GE)/γ-Fe of a kind of CdS Nanoparticle Modified2O3The preparation method of composite photo-catalyst.It has main steps that and first synthesizes cube block-like Prussian blue (PB) nano particle with hydro-thermal method；Again in deionized water by PB particle ultrasonic disperse, polyallylamine hydrochloride is added, keeps PB particle positively charged.Uniform graphite oxide dispersion and nitric acid cadmium solution are sequentially added, is stirred.It is eventually adding sodium sulfide solution, is stirred to react, product is collected.By above-mentioned product in argon atmosphere, with 2 DEG C of min‑1Rate be warming up to 350 DEG C, and keep 2h, obtain final product.The composite material is a kind of good visible light catalyst, has photocatalytic degradation effect to organic pollutant Rhodamine B.
Description
Technical field
The invention belongs to nanocomposite preparation field, in particular to a kind of graphene of CdS Nanoparticle Modified
(GE)/γ-Fe2O3The preparation method of composite photo-catalyst.
Technical background
Conductor photocatalysis is in recent years in the popular research direction that materials chemistry and Environmental Chemistry crossing domain rise.Light
Catalysis technique can be and without secondary pollution at normal temperatures and pressures by most organic pollutant degradations, it has also become has a bright future
Environmental pollution improvement's method.The core of photocatalysis technology is catalysis material, traditional catalysis material be metal oxide or
Person's sulfide semiconductor compound, this kind of material are limited by self property, and photocatalysis performance is generally lower.For example, TiO2It is to answer
With most commonly used photochemical catalyst, but since its band-gap energy is greater than 3.0eV, only just there is catalytic activity under ultraviolet light,
Strongly limit its application range.In recent years, two or more semiconductor is intercoupled, forms semiconductor heterostructure
Receive the extensive concern of researcher.All solid state Z- type energy band is wherein constructed according to the difference of semiconductor conduction band, valence band location
Structural composite material has become a kind of development trend.All solid state Z- type band structure is passed through using the electronics on semiconductor A conduction band
It crosses Problem of Electronic Broker and the hole of semiconductor B valence band is combined, leave the electronics on the hole and semiconductor B on semiconductor A, lose
The electrons and holes stayed have stronger reduction and oxidability, and furthermore this kind of structure can promote photo-generate electron-hole
To efficiently separating, so that semiconductor catalytic performance obtains raising largely.
Graphene (GE) is two-dimentional carbonaceous new material with the fastest developing speed in recent years, except possessing bigger serface, Gao Hua
Outside the plurality of advantages for learning traditional Carbon Materials such as stability, preferable adsorption capacity, also because its unique structure makes it have perfectly
The special properties such as quantum hall effect, unique quantum tunneling effect, ambipolar electric field effect.The present invention selects band gap phase
γ-the Fe matched2O3With CdS respectively as semiconductor A and B, γ-Fe is constructed using graphene as Problem of Electronic Broker2O3/ GE/CdS is multiple
Light combination catalyst has prepared the Z- type structure composite catalysis material haveing excellent performance, can be used for Visible Light Induced Photocatalytic organic contamination
Object.
Summary of the invention
The purpose of the present invention is to provide a kind of CdS Nanoparticle Modified GE/ γ-Fe2O3The preparation side of composite photo-catalyst
Method adopts the following technical scheme that
(1) by PVP and K3Fe(CN)6It is dissolved in HCl solution, mixture is transferred in reaction kettle after mixing evenly, react
Natural cooling afterwards obtains Prussian blue (PB) nano cubic block after cleaning.
Described PVP, the K3Fe(CN)6It is respectively as follows: 1.52g:0.044g:20mL with the quality and volume of HCl solution；It is described
The concentration of HCl solution is 0.1M.
The temperature of the reaction is 180 DEG C, reaction time 10h.
(2) PB is soluble in water, after ultrasonic disperse, polyallylamine hydrochloride (PAH) solution is added, stirs evenly for the first time
After sequentially add graphite oxide dispersion, Cd (NO3)2Solution stirs evenly for the second time；It is eventually adding Na2S solution, third time
It stirs evenly, after product is cleaned with deionized water, obtains product PB/GO/CdS.
The PB, water, polyallylamine hydrochloride solution, graphite oxide dispersion, Cd (NO3)2Solution, Na2The ratio of S solution
Example is: 5-20mg:40mL:2-4mL:0.5-2.5mL:4-6mL:4-6mL.
Cd (the NO3)2With Na2The ratio between amount of substance of S is 1:1.
The concentration of the polyallylamine hydrochloride solution is 1g/L-1；The concentration of the graphite oxide dispersion is 5mg mL-1；Cd (the NO3)2The concentration of solution is 0.11M；The Na2The concentration of S solution is 0.11M.
First, second and third mixing time is 3h；The time of the ultrasonic disperse is 30min.
(3) product PB/GO/CdS is placed in Ar2In atmosphere, 350 DEG C are warming up to, and keep 2h, obtain final product γ-
Fe2O3/GE/CdS。
The heating rate is 2 DEG C of min-1。
CdS nanoparticle is closely attached to the surface of graphene in product of the present invention, and CdS partial size is 30-
100nm；γ-Fe simultaneously2O3Nanoparticle is also supported on graphene film, and its pattern is cube bulk, partial size 200nm.This
Prepared γ-the Fe of invention2O3/ GE/CdS composite photo-catalyst has not been reported so far, and the present invention is carried on graphite using PB preparation
γ-the Fe of alkene on piece2O3Nano cubic block is a brand-new approach.The semiconductor γ-that the present invention selects band gap to match
Fe2O3It is photocatalytic activity constituent element with CdS, Z- type structure composite photocatalysis has successfully been constructed using graphene as Problem of Electronic Broker
Material-γ-Fe2O3/ GE/CdS makes photogenerated charge be efficiently separated and be utilized.γ-the Fe2O3/ GE/CdS composite photocatalyst
Agent not only has excellent visible light catalysis activity, the degradation suitable for organic pollutant；And due to γ-Fe therein2O3Tool
There is ferromagnetism, catalyst can easily carry out Magneto separate recycling.
Detailed description of the invention
Fig. 1 is X-ray diffraction (XRD) map of composite material prepared by the embodiment of the present invention 1.
Fig. 2 is transmission electron microscope (TEM) photo of composite material prepared by the embodiment of the present invention 1.
Fig. 3 is the performance map of the rhodamine B degradation (RhB) of composite material prepared by the embodiment of the present invention 1.Wherein catalyst
Dosage be 30mg, RhB dosage be 60mL, concentration be 5mg L-1.Light source is the Xe lamp of 250W, and is removed ultraviolet light with optical filter
It removes.
Specific embodiment:
The embodiment of the present invention is described in detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to these
Embodiment.
Embodiment 1:
By 10mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 5mL 0.11M2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Fig. 1 is the XRD diagram of product, and all diffraction maximums for scheming PB match with JCPDS No.73-0687, corresponding to cube
The Fe of phase4[Fe(CN)6]3.For γ-Fe2O3The XRD diagram of/RGO is located at 30.24,35.63,43.28,53.73,57.27,
62.925 and 62.499 ° of diffraction maximum corresponds to (022), (311), (400), (422), (511), and (440) crystal face, with γ-
Fe2O3Standard card (JCPDS No 39-1346) match.In γ-Fe2O3In the XRD diagram of/RGO/CdS, in addition to γ-
Fe2O3Diffraction maximum, remaining peak can belong to cubic phase CdS (JCPDS No.10-0454).Illustrate that compound is successfully prepared
Come.
Fig. 2 is that the TEM of product schemes, wherein figure a is γ-Fe2O3The TEM of/RGO schemes, as can be seen from the figure cubic block γ-
Fe2O3It is loaded on redox graphene on piece, figure b is γ-Fe2O3The TEM of/RGO/CdS schemes, it can be seen that not only standing
Square γ-Fe2O3It is loaded on redox graphene on piece, and there is also CdS nanoparticles on reduced graphene surface.
Fig. 3 is that the photocatalytic degradation RhB of product schemes.As can be seen from the figure sample can be with degradable pollutant after 1h
RhB。
Embodiment 2:
By 5mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again successively
1mL 5mg mL is added-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S is molten
Liquid stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is kept
2h obtains final product.
Embodiment 3:
By 15mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 4:
By 20mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 5:
By 10mg PB ultrasonic disperse in 40mL deionized water, 3mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 6:
By 10mg PB ultrasonic disperse in 40mL deionized water, 4mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 7:
By 10mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 2mL 5mg mL-1GO solution；5mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 5mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 8:
By 10mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；4mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 4mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Embodiment 9:
By 10mg PB ultrasonic disperse in 40mL deionized water, 2mL PAH (1g L is added-1) solution, stir 3h；Again according to
Secondary addition 1mL 5mg mL-1GO solution；6mL 0.11M CdCl2Solution stirs 3h；It is eventually adding the Na of 0.11 M of 6mL2S
Solution stirs 3h.After being cleaned with deionized water, gained sample is placed in argon atmosphere, in 2 DEG C of min-1350 DEG C are warming up to, and is protected
2h is held, final product is obtained.
Claims (10)
1. a kind of CdS/GE/Fe2O3The preparation method of composite photo-catalyst, it is characterised in that specific step is as follows: will be Prussian blue
PB is soluble in water, after ultrasonic disperse, polyallylamine hydrochloride solution PAH is added, sequentially adds oxygen after mixing evenly for the first time
Graphite alkene dispersion liquid, Cd (NO3)2Solution stirs evenly for the second time；It is eventually adding Na2S solution, stirs evenly for the third time, will
After product is cleaned with deionized water, product PB/GO/CdS is obtained；Product PB/GO/CdS is placed in Ar2In atmosphere, it is warming up to 350
DEG C, and 2h is kept, obtain final product CdS/GE/Fe2O3Composite photo-catalyst.
2. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: described
Prussian blue PB, water, polyallylamine hydrochloride solution, graphene oxide dispersion, Cd (NO3)2Solution, Na2The ratio of S solution
It is: 5-20mg:40mL:2-4mL:0.5-2.5mL:4-6mL:4-6mL；Cd (the NO3)2With Na2The ratio between amount of substance of S is
1:1。
3. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: described
The concentration of polyallylamine hydrochloride solution is 1g/L；The concentration of the graphene oxide dispersion is 5mg mL-1；The Cd
(NO3)2The concentration of solution is 0.11M；The Na2The concentration of S solution is 0.11M.
4. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: described
First, second and third mixing time is 3h；The time of the ultrasonic disperse is 30min.
5. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: described
Heating rate is 2 DEG C of min-1。
6. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: described
The pattern of Prussian blue PB is nano cubic block, using Prussian blue PB nano cubic block as generation γ-Fe2O3Nano cubic
The presoma of block；Prussian blue PB is set to become positively charged lotus with polyallylamine hydrochloride, in favor of itself and negatively charged oxidation stone
Black alkene is compound；Cd (NO is first added when preparing CdS3)2, afterwards plus Na2S makes positively charged Cd2+It is first adsorbed in surface of graphene oxide,
To realize the effective compound of CdS and graphene；In Ar2Heating makes Prussian blue PB be converted into γ-Fe in atmosphere2O3, simultaneously will
Graphene oxide thermal reduction is graphene.
7. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, it is characterised in that: final
Fe in product2O3It is closely supported on graphene film with CdS, and Fe2O3For γ-Fe2O3, pattern is cube bulk, partial size is
200nm, CdS partial size are 30-100nm.
8. a kind of CdS/GE/Fe as described in claim 12O3The preparation method of composite photo-catalyst, which is characterized in that described
The preparation step of Prussian blue PB is as follows: by PVP and K3Fe(CN)6It is dissolved in HCl solution, after mixing evenly shifts mixture
Into reaction kettle, natural cooling after reaction obtains Prussian blue PB nano cubic block after cleaning.
9. a kind of CdS/GE/Fe as claimed in claim 82O3The preparation method of composite photo-catalyst, which is characterized in that described
PVP, K3Fe(CN)6It is respectively as follows: 1.52g:0.044g:20mL with the quality and volume of HCl solution；The concentration of the HCl solution
For 0.1M.
10. a kind of CdS/GE/Fe as claimed in claim 82O3The preparation method of composite photo-catalyst, which is characterized in that described
The temperature of reaction is 180 DEG C, reaction time 10h.
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| CN102266787A (en) * | 2010-06-07 | 2011-12-07 | 付文甫 | Preparation method of novel noble-metal-free catalyst for photolysis of water to produce hydrogen |
| CN103432973A (en) * | 2013-09-09 | 2013-12-11 | 东南大学 | Method for preparing graphene-ferric oxide nano-particle composite material |
| CN103706364A (en) * | 2013-12-20 | 2014-04-09 | 安徽大学 | Graphene-based gamma-FeO2O3 composite material photocatalyst, and preparation method and use thereof |
| CN103721724A (en) * | 2013-12-23 | 2014-04-16 | 聊城大学 | Preparation method for cadmium sulfide/graphene composite material |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266787A (en) * | 2010-06-07 | 2011-12-07 | 付文甫 | Preparation method of novel noble-metal-free catalyst for photolysis of water to produce hydrogen |
| CN103432973A (en) * | 2013-09-09 | 2013-12-11 | 东南大学 | Method for preparing graphene-ferric oxide nano-particle composite material |
| CN103706364A (en) * | 2013-12-20 | 2014-04-09 | 安徽大学 | Graphene-based gamma-FeO2O3 composite material photocatalyst, and preparation method and use thereof |
| CN103721724A (en) * | 2013-12-23 | 2014-04-16 | 聊城大学 | Preparation method for cadmium sulfide/graphene composite material |
Non-Patent Citations (2)
| Title |
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| Fabrication of ferric oxide/reduced graphene oxide/cadmium sulfide heterostructure photoelectrode for enhanced photoelectrochemical performance;Hong-Ye Bai，et.al.;《Cryst. Res. Technol.》;20160930;第51卷(第11期);第656-662页 * |
| Formation of Fe2O3 Microboxes with Hierarchical Shell Structures from Metal−Organic Frameworks and Their Lithium Storage Properties;Lei Zhang,et.al.;《JACS》;20121011;第134卷;第17388-17391页 * |
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