CN113413888A - Photocatalyst and preparation method and application thereof - Google Patents
Photocatalyst and preparation method and application thereof Download PDFInfo
- Publication number
- CN113413888A CN113413888A CN202110605124.2A CN202110605124A CN113413888A CN 113413888 A CN113413888 A CN 113413888A CN 202110605124 A CN202110605124 A CN 202110605124A CN 113413888 A CN113413888 A CN 113413888A
- Authority
- CN
- China
- Prior art keywords
- photocatalyst
- sintering
- temperature
- grinding
- antibiotic
- 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.)
- Granted
Links
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 28
- 230000003115 biocidal effect Effects 0.000 claims abstract description 13
- 239000004098 Tetracycline Substances 0.000 claims abstract description 10
- 229960002180 tetracycline Drugs 0.000 claims abstract description 10
- 229930101283 tetracycline Natural products 0.000 claims abstract description 10
- 235000019364 tetracycline Nutrition 0.000 claims abstract description 10
- 150000003522 tetracyclines Chemical class 0.000 claims abstract description 10
- 230000000593 degrading effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003403 water pollutant Substances 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 9
- 229910052681 coesite Inorganic materials 0.000 claims description 9
- 229910052906 cristobalite Inorganic materials 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 229910052682 stishovite Inorganic materials 0.000 claims description 9
- 229910052905 tridymite Inorganic materials 0.000 claims description 9
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 6
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 9
- 238000006731 degradation reaction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000001699 photocatalysis Effects 0.000 abstract description 7
- 239000003242 anti bacterial agent Substances 0.000 abstract description 6
- 229940088710 antibiotic agent Drugs 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 6
- 239000003814 drug Substances 0.000 abstract description 4
- 238000007146 photocatalysis Methods 0.000 abstract description 4
- 239000007790 solid phase Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 description 12
- 239000010431 corundum Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 7
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000010532 solid phase synthesis reaction Methods 0.000 description 3
- 229910020923 Sn-O Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910007628 Li2SnO Inorganic materials 0.000 description 1
- 229910007626 Li2SnO3 Inorganic materials 0.000 description 1
- -1 Lithium group compound Chemical class 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000004774 atomic orbital Methods 0.000 description 1
- XMEVHPAGJVLHIG-FMZCEJRJSA-N chembl454950 Chemical compound [Cl-].C1=CC=C2[C@](O)(C)[C@H]3C[C@H]4[C@H]([NH+](C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O XMEVHPAGJVLHIG-FMZCEJRJSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229960004989 tetracycline hydrochloride Drugs 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
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
- B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- 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
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention relates to the technical field of photocatalysis, in particular to a photocatalyst and a preparation method and application thereof. The photocatalyst is Li2Sn0.90Si0.10O3Obtaining the photocatalyst Li by adopting a solid-phase sintering method2Sn0.90Si0.10O3Solves the technical problem that the prior photocatalyst has poor antibiotic degradation effect, and the obtained catalyst Li2Sn0.90Si0.10O3Has good catalytic degradation effect on antibiotics, particularly tetracycline medicaments, can be used for degrading antibiotics such as the tetracycline medicaments in water pollutants, and is beneficial to environmental protection treatment.
Description
Technical Field
The invention relates to the technical field of photocatalysis, in particular to a photocatalyst and a preparation method and application thereof.
Background
In recent years, the problem of water pollution is increasingly serious, and particularly, the concentration of residual antibiotics in a water body is excessive and exceeds the standard, which causes serious harm to the life of people. To overcome these challenges, photocatalytic technologies based on semiconductor photocatalysis have received extensive attention for degrading antibiotic substances in water. When photons with energy larger than or equal to the width of the half-body conduction forbidden band irradiate on the surface of the photocatalyst, electron-hole pairs are generated, and the reduction and oxidation of the photo-generated electrons and the holes are utilized to carry out the photocatalytic reaction, thereby realizing the problems of environmental remediation and the like. The search and preparation of high-efficiency and stable photocatalytic materials are the hot spots of current research.
Lithium group compound semiconductors are widely concerned by researchers due to their good semiconductor properties and broad application prospects, and are the hot spot and focus of current semiconductor material research. Wherein Li2SnO3As a two-dimensional oxide material, its space group is C2/C. Sn-O forms a two-dimensional layer, and Li atoms are positioned in pore channels between layers and in the Sn-O layer. The invention patent CN202011164226.7 discloses a photocatalyst for efficiently degrading tetracycline under visible light, a preparation method and an application thereof, the prepared graphite-phase carbon nitride catalyst is continuously irradiated for 60 minutes under the condition that the wavelength of incident light is more than or equal to 400nm and the optical power density is 2 of 196mW/cm, the photodegradation rate of 10mg/L tetracycline hydrochloride can reach 88.6%, the degradation time is too long, and the concentration of the degraded tetracycline is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a photocatalyst, which solves the problems of poor degradation efficiency and poor effect of the existing catalyst on antibiotics in environmental pollutants.
In order to achieve the purpose, the invention adopts the following scheme:
the photocatalyst is Li2Sn0.90Si0.10O3。
The second purpose of the invention is to provide a preparation method of the photocatalyst, which is simple and convenient and can be used for industrial production.
In order to achieve the purpose, the invention adopts the following scheme:
the photocatalyst Li2Sn0.90Si0.10O3The preparation method comprises the following steps:
s1, mixing Li2CO3,SnO2And SiO2Mixing, grinding, sintering in high temperature muffle furnace, cooling to room temperature to obtain white powdery Li2Sn0.90Si0.10O3A precursor; the Li2CO3,SnO2And SiO2The molar ratio of (1.1), (0.85-1.05), (0.05-0.15);
s2, mixing Li2Sn0.90Si0.10O3Grinding the precursor uniformly, putting the precursor into a high-temperature muffle furnace, sintering, and naturally cooling to room temperature to obtain the doped photocatalyst Li2Sn0.90Si0.10O3。
Further, S1, the Li2CO3,SnO2And SiO2Is 1.1:0.9: 0.1.
Further, S1, grinding time is 30min, sintering at a temperature rising rate of 6.5-7.5 ℃/min, sintering temperature is 750-.
Furthermore, the sintering temperature is 850 ℃, the sintering time is 10h, and the heating rate is 6.9 ℃/min.
Further, S2, the grinding time is 10min, the sintering temperature is 850 ℃, and the sintering time is 10 h.
The invention also aims to provide application of the photocatalyst.
In order to achieve the purpose, the following scheme is adopted:
the photocatalyst Li2Sn0.90Si0.10O3The application of the antibiotic in degrading environmental pollutants.
Further, photocatalyst Li2Sn0.90Si0.10O3The application of the antibiotic in degrading water pollutants.
Further, the antibiotic is tetracycline.
The technical principle of the invention is as follows:
sintering through solid-phase substances: under the action of a certain temperature, mass points (generally referred to as atoms or ions) are in the solid, and the surface of the solid is subjected to directional diffusion, so that old chemical bonds are broken, new chemical bonds are established, and new compounds are synthesized; after primary sintering, part of raw materials are not fully reacted into a target product to generate impurities; so that the secondary sintering is carried out to fully react to obtain the target product. The electron layer structure has discrete energy levels, atomic orbitals are overlapped, the discrete electron energy levels are expanded into energy band electrons belonging to the whole crystal, and the energy band electrons freely flow in the whole crystal-electron sharing, so that the energy band is changed, the oxidation-reduction capability is influenced, and the catalytic effect is changed.
Compared with the prior art, the invention has the following beneficial effects: obtaining photocatalyst Li by using solid-phase sintering method2Sn0.90Si0.10O3Solves the technical problem that the prior photocatalyst has poor antibiotic degradation effect, and the obtained catalyst Li2Sn0.90Si0.10O3Has good catalytic degradation effect on antibiotics, particularly tetracycline medicaments, can be used for degrading antibiotics such as the tetracycline medicaments in water pollutants, and is beneficial to environmental protection treatment.
Drawings
Fig. 1 is an XRD pattern of example 1 of the present invention.
Figure 2 is an XRD pattern of example 2 of the invention.
Figure 3 is an XRD pattern of example 3 of the invention.
FIG. 4 is a graph showing the photocatalytic effect in example 4 of the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
Example 1 solid phase method for preparing Li2Sn0.90Si0.10O3
The preparation process comprises the following steps:
1) 3.3mmol of Li were weighed out separately2CO3、2.7mmol SnO2And 0.3mmol of SiO2Mixing and grinding for 30min, and transferring to a corundum crucible;
2) putting the corundum crucible into a high-temperature muffle furnace, sintering at 850 ℃ for 10h at the heating rate of 6.9 ℃/min, and naturally cooling to finally obtain Li2Sn0.90Si0.10O3A precursor;
3) subjecting the above-mentioned precursor Li2Sn0.90Si0.10O3Grinding for 10min, and transferring the obtained sample into a corundum crucible;
4) transferring the corundum crucible to a high-temperature muffle furnace, sintering for 10 hours at 850 ℃, naturally cooling to room temperature, and using the obtained sample for phase characterization;
5) finally preparing the photocatalyst Li2Sn0.90Si0.10O3。
XRD test: taking the obtained Li2Sn0.90Si0.10O3After a small amount of the product was ground thoroughly in an agate mortar, the sample was phase-characterized on a Shimadzu 7000-X-ray diffractometer (see FIG. 1). FIG. 1 shows the product Li obtained in the experiment2Sn0.90Si0.10O3The XRD pattern of the doped sample is consistent with the standard XRD pattern, the XRD of the doped sample is consistent with that of the undoped sample, and other impurity peaks do not appear, thus indicating that the doping is successful; the standard XRD is the XRD pattern of the undoped sample, Li2SnO 3.
Example 2 solid phase method for preparing Li2Sn0.90Si0.10O3
1) 3.3mmol of Li2CO were weighed out separately3、2.55mmol SnO2And 0.15mmol of SiO2Mixing and grinding for 30min, and transferring to a corundum crucible;
2) putting the corundum crucible into a high-temperature muffle furnace, sintering at 750 ℃ for 6h at the heating rate of 6.5 ℃/min, and naturally cooling to finally obtain Li2Sn0.90Si0.10O3A precursor;
3) subjecting the above-mentioned precursor Li2Sn0.90Si0.10O3Grinding for 10min, and transferring the obtained sample into a corundum crucible;
4) transferring the corundum crucible to a high-temperature muffle furnace, sintering for 6 hours at 750 ℃, naturally cooling to room temperature, and using the obtained sample for phase characterization;
5) finally preparing the photocatalyst Li2Sn0.90Si0.10O3。
XRD test: taking the obtained Li2Sn0.90Si0.10O3After a small amount of product was ground thoroughly in an agate mortar, the sample was phase-characterized on a Shimadzu 7000-X-ray diffractometer (FIG. 2).
Example 3 solid phase method for preparing Li2Sn0.90Si0.10O3
1) 3.3mmol of Li were weighed out separately2CO3、3.15mmol SnO2And 0.45mmol of SiO2Mixing and grinding for 30min, and transferring to a corundum crucible;
2) putting the corundum crucible into a high-temperature muffle furnace, sintering at 900 ℃ for 8h at the heating rate of 7.5 ℃/min, and naturally cooling to finally obtain Li2Sn0.90Si0.10O3A precursor;
3) subjecting the above-mentioned precursor Li2Sn0.90Si0.10O3Grinding for 10min, and transferring the obtained sample into a corundum crucible;
4) transferring the corundum crucible to a high-temperature muffle furnace, sintering for 8 hours at 900 ℃, naturally cooling to room temperature, and using the obtained sample for phase characterization;
5) finally preparing the photocatalyst Li2Sn0.90Si0.10O3。
XRD test: taking the obtained Li2Sn0.90Si0.10O3After a small amount of the product had been ground thoroughly in an agate mortar, the sample was phase-characterized on a Shimadzu 7000-X-ray diffractometer (FIG. 3).
Example 4 application Effect test
1. By implementing the experiment of the product for degrading the antibiotic tetracycline through photocatalysis, the photocatalyst Li prepared by solid phase sintering can be known2Sn0.90Si0.10O3Has good effect on antibiotic tetracyclineAnd (4) degradation. As shown in FIG. 4, it can be seen that the photocatalysts Li obtained in the photocatalyst examples 1, 2 and 3 are within 25min2Sn0.90Si0.10O3The degradation rate of the antibiotic nortetracycline (20mg/L) reaches 75 percent, 69 percent and 37 percent.
Blank group: no catalyst was added, and the other conditions were the same as those of the control (catalyst).
2. The experiment comprises the following specific steps:
30mg of the prepared photocatalyst Li was taken2Sn0.90Si0.10O3Adding into 100ml antibiotic tetracycline solution with concentration of 20mg/L, dark adsorbing for 60min to establish adsorption-desorption equilibrium. Irradiating under 500W mercury lamp for 25min, collecting supernatant 5mL every 5min, centrifuging, and measuring absorbance with UV-Vis spectrophotometer (Shimadzu UV-2550). The result shows that the photocatalytic degradation efficiency reaches 75% within 25min, and the degradation effect is good.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. The photocatalyst is characterized in that the photocatalyst is Li2Sn0.90Si0.10O3。
2. The method for preparing the photocatalyst according to claim 1, wherein the photocatalyst Li is Li2Sn0.90Si0.10O3The preparation method comprises the following steps:
s1, mixing Li2CO3,SnO2And SiO2Mixing, grinding, sintering in high temperature muffle furnace, cooling to room temperature to obtain white powdery Li2Sn0.90Si0.10O3A precursor; the Li2CO3,SnO2And SiO2The molar ratio of (1.1), (0.85-1.05), (0.05-0.15);
s2, mixing Li2Sn0.90Si0.10O3Grinding the precursor uniformly, putting the precursor into a high-temperature muffle furnace, sintering, and naturally cooling to room temperature to obtain the doped photocatalyst Li2Sn0.90Si0.10O3。
3. The method for preparing a photocatalyst as claimed in claim 2, wherein S1, the Li2CO3,SnO2And SiO2Is 1.1:0.9: 0.1.
4. The method of claim 2, wherein the step of grinding S1 is performed for 30min, and the step of sintering is performed at a temperature rising rate of 6.5-7.5 ℃/min, wherein the sintering temperature is 750-.
5. The method of claim 2, wherein the sintering temperature is 850 ℃, the sintering time is 10 hours, and the temperature increase rate is 6.9 ℃/min.
6. The method of claim 2, wherein the grinding time is 10min, the sintering temperature is 850 ℃, and the sintering time is 10h in S2.
7. Photocatalyst Li according to claim 12Sn0.90Si0.10O3The application of the antibiotic in degrading environmental pollutants.
8. Use according to claim 7, characterized in that the photocatalyst Li2Sn0.90Si0.10O3The application of the antibiotic in degrading water pollutants.
9. The use of claim 8, wherein the antibiotic is tetracycline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605124.2A CN113413888B (en) | 2021-05-31 | 2021-05-31 | Photocatalyst and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605124.2A CN113413888B (en) | 2021-05-31 | 2021-05-31 | Photocatalyst and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113413888A true CN113413888A (en) | 2021-09-21 |
| CN113413888B CN113413888B (en) | 2023-04-18 |
Family
ID=77713565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110605124.2A Active CN113413888B (en) | 2021-05-31 | 2021-05-31 | Photocatalyst and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113413888B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931940A (en) * | 2022-06-09 | 2022-08-23 | 重庆第二师范学院 | Lithium tin oxide multi-metal doped photocatalyst and application thereof in drug degradation |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005200605A (en) * | 2004-01-19 | 2005-07-28 | Dainippon Ink & Chem Inc | Method for producing composite of organic polymer and metal compound, and composite |
| CN101222046A (en) * | 2008-01-25 | 2008-07-16 | 南京大学 | Anode material of lithium battery and high temperature solid-phase sintering production method |
| CN102947001A (en) * | 2010-03-12 | 2013-02-27 | 株式会社小原 | Photocatalyst, slurry mixture, forming member and coating, coating film forming member, sintered body, glass-ceramic composite, glass, building material and clarification material |
| CN106116550A (en) * | 2016-06-26 | 2016-11-16 | 桂林理工大学 | A kind of silicate Li2siO3application as temperature-stable high quality factor microwave dielectric ceramic |
| CN107774258A (en) * | 2017-11-09 | 2018-03-09 | 南京大学（苏州）高新技术研究院 | The preparation and application of a kind of powder catalytic material, the compound porous nano catalytic material containing zeolite |
| CN108452847A (en) * | 2018-03-21 | 2018-08-28 | 湖南工程学院 | A kind of rear-earth-doped SnO2The synthetic method of the nano-photocatalyst material of/TS-1 and application |
| CN109289758A (en) * | 2018-12-07 | 2019-02-01 | 中国科学院青海盐湖研究所 | A kind of hexagonal flake manganese systems lithium ion sieve adsorbant and preparation method thereof |
| CN110075905A (en) * | 2019-06-11 | 2019-08-02 | 重庆第二师范学院 | A kind of heterojunction photocatalyst CaSb2O6/g-C3N4Preparation method and applications |
| US20190245155A1 (en) * | 2018-01-24 | 2019-08-08 | Stephan HEATH | Methods, products, and systems relating to making, providing, and using nanocrystalline cellulose superlattice solar cells to produce electricity |
| CN110180526A (en) * | 2019-05-10 | 2019-08-30 | 重庆第二师范学院 | A kind of photocatalyst Li2SnO3Preparation method and its degradation antibiotic in utilization |
-
2021
- 2021-05-31 CN CN202110605124.2A patent/CN113413888B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005200605A (en) * | 2004-01-19 | 2005-07-28 | Dainippon Ink & Chem Inc | Method for producing composite of organic polymer and metal compound, and composite |
| CN101222046A (en) * | 2008-01-25 | 2008-07-16 | 南京大学 | Anode material of lithium battery and high temperature solid-phase sintering production method |
| CN102947001A (en) * | 2010-03-12 | 2013-02-27 | 株式会社小原 | Photocatalyst, slurry mixture, forming member and coating, coating film forming member, sintered body, glass-ceramic composite, glass, building material and clarification material |
| CN106116550A (en) * | 2016-06-26 | 2016-11-16 | 桂林理工大学 | A kind of silicate Li2siO3application as temperature-stable high quality factor microwave dielectric ceramic |
| CN107774258A (en) * | 2017-11-09 | 2018-03-09 | 南京大学（苏州）高新技术研究院 | The preparation and application of a kind of powder catalytic material, the compound porous nano catalytic material containing zeolite |
| US20190245155A1 (en) * | 2018-01-24 | 2019-08-08 | Stephan HEATH | Methods, products, and systems relating to making, providing, and using nanocrystalline cellulose superlattice solar cells to produce electricity |
| CN108452847A (en) * | 2018-03-21 | 2018-08-28 | 湖南工程学院 | A kind of rear-earth-doped SnO2The synthetic method of the nano-photocatalyst material of/TS-1 and application |
| CN109289758A (en) * | 2018-12-07 | 2019-02-01 | 中国科学院青海盐湖研究所 | A kind of hexagonal flake manganese systems lithium ion sieve adsorbant and preparation method thereof |
| CN110180526A (en) * | 2019-05-10 | 2019-08-30 | 重庆第二师范学院 | A kind of photocatalyst Li2SnO3Preparation method and its degradation antibiotic in utilization |
| CN110075905A (en) * | 2019-06-11 | 2019-08-02 | 重庆第二师范学院 | A kind of heterojunction photocatalyst CaSb2O6/g-C3N4Preparation method and applications |
Non-Patent Citations (7)
| Title |
|---|
| TAO ZHANG等: "Inducing a deep impurity level in Li2SnO3 by ionic BieO bonding to enhance light absorption in photocatalysis" * |
| YANRONG REN等: "Enhanced Photogenerated Hole Oxidation Capability of Li2SnO3 by Sb Incorporation in Photocatalysis Through Band Structure Modifcation" * |
| YU LIANG LIU等: "Theoretical insight into the efect of Si doped sites on the photocatalytic properties of SrTiO3", 《APPLIED PHYSICS A》 * |
| YUANYUAN LI等: "Novel High Efficiency Layered Oxide Photocatalyst Li2SnO3 for Rhodamine B and Tetracycline Degradation", 《CATALYSTS》 * |
| 李园园等: "基于Si掺杂增强光吸收提升Li2SnO3光催化降解四环素的研究" * |
| 王丽等: "非金属掺杂二氧化钛光催化剂的研究进展", 《材料导报》 * |
| 陈袁魁等: "CaF2掺杂与二次烧结对Ca3Co4O9结构的影响", 《西华大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931940A (en) * | 2022-06-09 | 2022-08-23 | 重庆第二师范学院 | Lithium tin oxide multi-metal doped photocatalyst and application thereof in drug degradation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113413888B (en) | 2023-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107008467B (en) | Preparation method and application of heterojunction photocatalyst | |
| CN110465286A (en) | A kind of bismuth tungstate photocatalyst and its preparation method and application of Surface Oxygen vacancy defect modification | |
| CN110075905B (en) | Heterojunction photocatalyst CaSb2O6/g-C3N4Preparation method and application thereof | |
| CN112076777B (en) | For CO2Reduced photocatalyst and preparation method thereof | |
| CN111790408B (en) | Bismuth/antimony-based perovskite, photocatalytic material, and preparation method and application thereof | |
| CN109665560B (en) | Carbon and nitrogen doped BiOCl with full-spectrum absorption and preparation method and application thereof | |
| CN115007182B (en) | Preparation method of potassium-oxygen co-doped graphite-phase carbon nitride photocatalyst | |
| CN111672528A (en) | Modified carbon nitride photocatalyst and preparation method and application thereof | |
| CN112473712A (en) | CeO treated with different atmospheres2/g-C3N4Heterojunction material, preparation method and application thereof | |
| CN110302826B (en) | Basic bismuth nitrate and bismuth oxyiodide composite photocatalyst and preparation method and application thereof | |
| CN113413888B (en) | Photocatalyst and preparation method and application thereof | |
| CN106000370A (en) | Preparation method of photoinduced Ti<3+> self-doped TiO2 photocatalyst | |
| CN109158117B (en) | Full-spectrum-response double-doped lanthanum fluoride/attapulgite up-conversion composite photocatalytic material and preparation method and application thereof | |
| CN107961785B (en) | Preparation method and application of high-activity bismuth chromate nano photocatalyst | |
| CN111229200B (en) | Bismuth oxide modified Ti 3+ Self-doping TiO 2 Preparation method of heterojunction photocatalyst | |
| CN109012730B (en) | Visible light response boron-nitrogen co-doped photocatalyst and preparation method and application thereof | |
| CN116532135A (en) | Cobalt ion doped modified up-conversion photocatalyst and preparation method and application thereof | |
| CN107812519B (en) | Preparation and application of powder catalytic material and SiO 2-containing aerogel composite porous nano catalytic material | |
| CN113856717B (en) | Super-stable photocatalytic material accelerator and preparation method thereof | |
| CN114602527A (en) | g-C3N4/TiO2In-situ preparation method of nano heterojunction photocatalyst | |
| CN110227490B (en) | Carbon-coated and carbon-sulfur co-doped SnO2Photocatalyst and preparation method thereof | |
| CN113398973A (en) | Graphite phase carbon nitride nanosheet and preparation method and application thereof | |
| CN110075879B (en) | Carbon-coated ferroferric oxide magnetic microsphere modified bismuth oxyiodide composite photocatalytic material and preparation method and application thereof | |
| CN103877969B (en) | In (I) 2 O 3 ·InVO 4 Heterostructure composites and methods of making and using same | |
| CN110180525B (en) | Zn4B6O13The solid phase preparation method and the application in the degradation of antibiotics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| OL01 | Intention to license declared |