CN108745335A - Photoelectric functional material and preparation method thereof - Google Patents
Photoelectric functional material and preparation method thereof Download PDFInfo
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- CN108745335A CN108745335A CN201810620883.4A CN201810620883A CN108745335A CN 108745335 A CN108745335 A CN 108745335A CN 201810620883 A CN201810620883 A CN 201810620883A CN 108745335 A CN108745335 A CN 108745335A
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- 239000000463 material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 230000020477 pH reduction Effects 0.000 claims abstract description 39
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 229960000892 attapulgite Drugs 0.000 claims description 41
- 229910052625 palygorskite Inorganic materials 0.000 claims description 41
- 239000011259 mixed solution Substances 0.000 claims description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 239000000908 ammonium hydroxide Substances 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000012670 alkaline solution Substances 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 229910002370 SrTiO3 Inorganic materials 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- KVBCYCWRDBDGBG-UHFFFAOYSA-N azane;dihydrofluoride Chemical compound [NH4+].F.[F-] KVBCYCWRDBDGBG-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 150000002484 inorganic compounds Chemical class 0.000 abstract 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000008204 material by function Substances 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 3
- 230000003588 decontaminative effect Effects 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910002808 Si–O–Si Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000005406 washing Methods 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
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J27/24—Nitrogen compounds
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Hybrid Cells (AREA)
Abstract
The present invention relates to inorganic compound semiconductor technical field of material, a kind of photoelectric functional material and preparation method thereof is disclosed, which is made of acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier and catalyst, and the two mass ratio is 1:0.001~5.The photoelectric functional material being prepared by this method is higher to the utilization rate of light, has big specific surface area, is capable of providing more surface-active sites;The diffusion length of charge is short, is conducive to charge transmission, and structural behaviour is stablized.
Description
Technical field
The present invention relates to field of photovoltaic materials, more particularly to a kind of photoelectric functional material and preparation method thereof.
Background technology
Bulk catalyst(Fe2O3、C3N4、SrTiO3、TiO2Deng)Utilization rate on light is to influence Photocatalyzed Hydrogen Production efficiency
One key factor.Be currently mostly mixed by ion or the method for dye sensitization come extend bulk catalyst to light utilize model
It encloses.For another angle, the utilization rate for improving sunlight can also be by improving scattering of the light in catalytic inner come real
It is existing.Light may be implemented in the scattering of catalytic inner to improve the utilization rate of light in hollow porous structure.
Currently, the method for synthesis hollow material needs pre-synthesis soft, hard template mostly, it is complex for operation step, and lead to
It is often used toxic organic matter solvent.Attapulgite is a kind of natural one-dimensional rich aluminium magensium silicate mineral, brilliant for threadiness
Body, monocrystalline are about 1-5 μm, diameter about 20-70 nm.The Large ratio surface and adsorptivity of attapulgite make it be urged applied to light
The research of agent carrier.Synthesis step can be simplified by constructing hollow Nano photochemical catalyst as template using this natural attapulgite, be subtracted
The use of few organic solvents a large amount of when synthesizing template.And as the research of the hollow porous bulk catalyst of templated synthesis
But it is rarely reported.This is because the Si keys on attapulgite surface are difficult to form strong bond with transition metal(Si-O-M);Concave convex rod
Although there is groove on stone surface, but the size of groove causes semiconductor body catalyst less than 1 nm(Transition metal oxide,
Sulfide etc.)It is difficult to form close cladding on attapulgite surface, Si-O-M is easily broken off, and influences catalytic effect.
Invention content
Goal of the invention:For problems of the prior art, a kind of photoelectric functional material of present invention offer and its preparation
Method, the photoelectric functional material being prepared are higher to the utilization rate of light, have big specific surface area, are capable of providing more tables
Face active site;The diffusion length of charge is short, is conducive to charge transmission, and structural behaviour is stablized.
Technical solution:The present invention provides a kind of photoelectric functional materials, by acidification nano-attapulgite-mesoporous silicon oxide
Layer carrier and catalyst composition, the two mass ratio are 1:0.001~5.
Preferably, the catalyst is Fe2O3,、C3N4、SrTiO3Or TiO2。
The present invention also provides a kind of preparation methods of photoelectric functional material, include the following steps:S1:Prepare acidification nanometer
Attapulgite;S2:It is molten that the acidification nano-attapulgite is distributed to the mixing being made of ammonium hydroxide, absolute ethyl alcohol and deionized water
In liquid M1;S3:By TEOS and C18TMS mixes to obtain mixed solution M2;S4:Mixed solution M2 is added drop-wise in mixed solution M1, is stirred
It mixes, ultrasound, is calcined after precipitation, centrifugation, drying, obtain the acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier;S5:It will
Catalyst loads in the acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier, obtains photoelectric functional material;S6:Removal
Acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier in the photoelectric functional material.
Further, in the S1, the acidification nano-attapulgite is made by following steps:S1-1:It will removal
The attapulgite of impurity is dispersed in the hydrochloric acid that molar concentration is 1M, and stirring is centrifuged, cleaned afterwards for 24 hours;S1-2:With rubbing at 60 DEG C
The HCl processing of your a concentration of 3M for 24 hours, the acidification nano-attapulgite is obtained after centrifugation, cleaning.
Preferably, in the S2, the acidification nano-attapulgite and the ammonium hydroxide, absolute ethyl alcohol and deionized
Mass volume ratio is 1g:2~3.1g:75~100mL:10~20ml.
Preferably, in the S3, the TEOS and C18The volume ratio of TMS is 1 ~ 5:0~3.By adjust TEOS and
C18The mass ratio of TMS can adjust acidification nano-attapulgite stone surface and obtain the thickness of meso-porous titanium dioxide silicon frame, and then realize and adjust
Save the thickness of the porous bulk catalyst wall of one-dimensional hollow.
Preferably, in the S4, the rate that the mixed solution M2 is added dropwise into the mixed solution M1 is 10 ~ 20
Drop/min;Calcination temperature is 500 ~ 600 DEG C, and calcination time is 3 ~ 6h.
Preferably, in the S5, the acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier and the catalyst
Mass ratio be 1:0.01~1.
Preferably, in the S6, using alkaline solution or ammonium acid fluoride by the acidification nano-attapulgite-mesoporous two
Silicon oxide layer carrier removes, and obtains hollow porous photoelectric functional material.
Principle and advantageous effect:In the present invention, pass through mesoporous material TEOS and pore-foaming agent C18The synergistic effect of TMS, in acid
The surface for changing nano-attapulgite stone forms Si-O-Si keys, one layer of meso-porous titanium dioxide silicon frame is ultimately formed, then again by main body
For catalyst growth in above-mentioned meso-porous titanium dioxide silicon frame, load effect is preferable, finally removes attapulgite and mesoporous dioxy again
SiClx frame obtains the porous bulk catalyst photoelectric functional material of one-dimensional hollow;The porous bulk catalyst of one-dimensional hollow can
The utilization rate of light is improved by the scattering of light, and this catalyst has big specific surface area, be capable of providing more surfaces and live
Property site;The diffusion length of charge is short, is conducive to the characteristics of charge transmits;In addition, Si-O-M keys are compared to, Si-O-Si keys
That to be stablized is more, not easy to break, is more advantageous to form hollow porous photoelectric functional material.
Description of the drawings
Fig. 1 is the scanning electron microscope diagram that nano-attapulgite is acidified in embodiment 1;
Fig. 2 is the scanning electricity for acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier that iron oxide has been loaded in embodiment 1
Sub- microscope figure.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1:
Present embodiments provide for a kind of iron oxide photoelectric functional materials and preparation method thereof, by acidification nano-attapulgite-Jie
Hole silicon dioxide layer carrier and Fe2O3Composition, the two mass ratio are 1:0.3.
The preparation method of above-mentioned photoelectric functional material is as follows:
S1:Prepare acidification nano-attapulgite;
Attapulgite is subjected to pre-processing decontamination first, attapulgite is then dispersed in the hydrochloric acid that molar concentration is 1M
In, stirring centrifuges afterwards for 24 hours, and deionized water is used in combination to clean three times, then the HCl for being 3M with molar concentration at 60 DEG C is by above-mentioned bumps
The processing of stick soil for 24 hours, is then centrifuged for, and is used in combination deionized water to clean three times, is obtained acidification nano-attapulgite, and gained sample is frozen
It is dry;Such as Fig. 1, to be acidified the scanning electron microscope diagram of nano-attapulgite, it is seen that attapulgite shows as fiber club shaped structure,
Stick is 0.2-2 μm long, and the diameter of stick is about 50-70 nm.
S2:The above-mentioned acidification nano-attapulgites of 1g are distributed to by the deionization of 3.10g ammonium hydroxide, 100mL ethyl alcohol and 20ml
In the mixed solution of water composition, ultrasound 1h again after 1h is stirred so that be acidified attapulgite and be well dispersed in mixed solution and must mix
Close solution M1.
S3:By 2.58gTEOS and 1gC18Mixed solution M2 is obtained after TMS mixing.
S4:Mixed solution M2 is added drop-wise in mixed solution M1, is added dropwise with the drop rate of 20 drops/min, is sunk after stirring 3h
It forms sediment, centrifuge, is dry, then calcining 6h at 550 DEG C with perpend stove, obtaining acidification nano-attapulgite-meso-porous titanium dioxide silicon layer
Carrier.
S5:Using the method calcined after washing by 0.3g Fe2O3Load to 1g acidification nano-attapulgite-meso-porous titanium dioxides
In silicon layer carrier, such as Fig. 2, the scanning electron of acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier of iron oxide has been loaded
Microscope figure, it is seen that it is observed that attapulgite is obviously thicker from figure, area load one layer of iron oxide, the diameter of stick reach
100-150 nm have been arrived, have illustrated that iron oxide has successfully been loaded to the surface of attapulgite by we.
S6:With alkaline solution by be acidified nano-attapulgite-meso-porous titanium dioxide silicon layer carrier melt away, finally obtain it is one-dimensional in
Empty porous Fe2O3Photoelectric functional material.
Embodiment 2:
Present embodiments provide for a kind of iron oxide photoelectric functional materials and preparation method thereof, by acidification nano-attapulgite-Jie
Hole silicon dioxide layer carrier and TiO2Composition, the two mass ratio are 1:5.
The preparation method of above-mentioned photoelectric functional material is as follows:
S1:Prepare acidification nano-attapulgite;
Attapulgite is subjected to pre-processing decontamination first, attapulgite is then dispersed in the hydrochloric acid that molar concentration is 1M
In, stirring centrifuges afterwards for 24 hours, and deionized water is used in combination to clean three times, then the HCl for being 3M with molar concentration at 60 DEG C is by above-mentioned bumps
The processing of stick soil for 24 hours, is then centrifuged for, and is used in combination deionized water to clean three times, is obtained acidification nano-attapulgite, and gained sample is frozen
It is dry.
S2:By the above-mentioned acidification nano-attapulgites of 1g be distributed to by 3.10g ammonium hydroxide, 74.12mL ethyl alcohol and 10ml go from
In the mixed solution of sub- water composition, ultrasound 1h again is stirred after 1h so that acidification attapulgite is well dispersed in mixed solution must
Mixed solution M1.
S3:Mixed solution M2 is obtained after 5gTEOS and 3gC18TMS is mixed.
S4:Mixed solution M2 is added drop-wise in mixed solution M1, is added dropwise with the drop rate of 15 drops/min, then stirs 3h
It precipitates afterwards, centrifuges, is dry, then must be acidified nano-attapulgite-mesoporous silicon oxide calcining 3h at 600 DEG C with perpend stove
Layer carrier.
S5:Using the method for collosol and gel by 5g TiO2Load to 1g acidification nano-attapulgite-meso-porous titanium dioxide silicon layers
In carrier.
S6:With alkaline solution by be acidified nano-attapulgite-meso-porous titanium dioxide silicon layer carrier melt away, finally obtain it is one-dimensional in
Empty porous TiO2Photoelectric functional material.
Embodiment 3:
Present embodiments provide for a kind of C3N4Photoelectric functional material and preparation method thereof, it is mesoporous by acidification nano-attapulgite
Silicon dioxide layer is carrier and C3N4Composition, the two mass ratio 1:0.25.
The preparation method of above-mentioned photoelectric functional material is as follows:
S1:Prepare acidification nano-attapulgite;
Attapulgite is subjected to pre-processing decontamination first, attapulgite is then dispersed in the hydrochloric acid that molar concentration is 1M
In, stirring centrifuges afterwards for 24 hours, and deionized water is used in combination to clean three times, then the HCl for being 3M with molar concentration at 60 DEG C is by above-mentioned bumps
The processing of stick soil for 24 hours, is then centrifuged for, and is used in combination deionized water to clean three times, is obtained acidification nano-attapulgite, and gained sample is frozen
It is dry.
S2:The above-mentioned acidification nano-attapulgites of 1g are distributed to by 2g ammonium hydroxide, the deionized water group of 100mL ethyl alcohol and 20ml
At mixed solution in, stir ultrasound 1h again after 1h so that be acidified attapulgite be well dispersed in mixed solution must mix it is molten
Liquid M1.
S3:Mixed solution M2 is obtained after 4.645gTEOS and 2.649gC18TMS is mixed.
S4:Mixed solution M2 is added drop-wise in mixed solution M1, is added dropwise with the drop rate of 10 drops/min, then stirs 3h
It precipitates afterwards, centrifuges, is dry, then must be acidified nano-attapulgite-mesoporous silicon oxide calcining 6h under 500 degree with perpend stove
Layer carrier.
S5:Using the method for calcining by 0.25g C3N41g acidifications nano-attapulgite-meso-porous titanium dioxide silicon layer is loaded to carry
In body.
S6:With alkaline solution by be acidified nano-attapulgite-meso-porous titanium dioxide silicon layer carrier melt away, finally obtain it is one-dimensional in
Empty porous C3N4 photoelectric functional materials.
The technical concepts and features of the above embodiment only to illustrate the invention, its object is to allow be familiar with technique
People cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent transformation or modification that Spirit Essence is done, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of photoelectric functional material, which is characterized in that by acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier and catalysis
Agent forms, and the two mass ratio is 1:0.001~5.
2. photoelectric functional material according to claim 1, which is characterized in that the catalyst is Fe2O3,、C3N4、SrTiO3
Or TiO2。
3. a kind of preparation method of photoelectric functional material as claimed in claim 1 or 2, which is characterized in that include the following steps:
S1:Prepare acidification nano-attapulgite;
S2:The acidification nano-attapulgite is distributed to the mixed solution M1 being made of ammonium hydroxide, absolute ethyl alcohol and deionized water
In;
S3:By TEOS and C18TMS mixes to obtain mixed solution M2;
S4:Mixed solution M2 is added drop-wise in mixed solution M1, is stirred, ultrasound calcines after precipitation, centrifugation, drying, obtains the acid
Change nano-attapulgite-meso-porous titanium dioxide silicon layer carrier;
S5:Catalyst is loaded in the acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier, photoelectric functional material is obtained
Material;
S6:Remove acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier in the photoelectric functional material.
4. the preparation method of photoelectric functional material according to claim 3, which is characterized in that in the S1, the acid
Change nano-attapulgite to be made by following steps:
S1-1:Deimpurity attapulgite will be gone to be dispersed in the hydrochloric acid that molar concentration is 1M, stirring is centrifuged, cleaned afterwards for 24 hours;
S1-2:The HCl for being 3M with molar concentration at 60 DEG C is handled for 24 hours, and the acidification nano-attapulgite is obtained after centrifugation, cleaning
Soil.
5. the preparation method of photoelectric functional material according to claim 3, which is characterized in that in the S2, the acid
The mass volume ratio for changing nano-attapulgite and the ammonium hydroxide, absolute ethyl alcohol and deionized water is 1g:2~3.1g:75~
100mL:10~20ml。
6. the preparation method of photoelectric functional material according to claim 3, which is characterized in that described in the S3
TEOS and C18The mass ratio of TMS is 1 ~ 5:0~3.
7. the preparation method of photoelectric functional material according to claim 3, which is characterized in that described mixed in the S4
It is 10 ~ 20 drops/min to close the rate that solution M2 is added dropwise into the mixed solution M1;Calcination temperature is 500 ~ 600 DEG C, when calcining
Between be 3 ~ 6h.
8. the preparation method of photoelectric functional material according to claim 3, which is characterized in that in the S5, the acid
The mass ratio for changing nano-attapulgite-meso-porous titanium dioxide silicon layer carrier and the catalyst is 1:0.01~1.
9. the preparation method of the photoelectric functional material according to any one of claim 3 to 8, which is characterized in that described
In S6, the acidification nano-attapulgite-meso-porous titanium dioxide silicon layer carrier is removed using alkaline solution or ammonium acid fluoride, is obtained
Hollow porous photoelectric functional material.
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CN113828291B (en) * | 2021-09-14 | 2023-08-22 | 淮阴工学院 | Composite photocatalyst with full spectrum absorption characteristic and preparation method thereof |
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