CN114014353A - SnS with photothermal function2Nanosheet array structure and preparation method thereof - Google Patents
SnS with photothermal function2Nanosheet array structure and preparation method thereof Download PDFInfo
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- CN114014353A CN114014353A CN202111540771.6A CN202111540771A CN114014353A CN 114014353 A CN114014353 A CN 114014353A CN 202111540771 A CN202111540771 A CN 202111540771A CN 114014353 A CN114014353 A CN 114014353A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000002135 nanosheet Substances 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims abstract description 17
- 238000004729 solvothermal method Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012153 distilled water Substances 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims abstract description 9
- 238000001291 vacuum drying Methods 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 239000002657 fibrous material Substances 0.000 claims abstract description 7
- 239000004094 surface-active agent Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 29
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 25
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 14
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 12
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 12
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 12
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims description 12
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 12
- -1 tin salt compound Chemical class 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 7
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 6
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- KCOYHFNCTWXETP-UHFFFAOYSA-N (carbamothioylamino)thiourea Chemical compound NC(=S)NNC(N)=S KCOYHFNCTWXETP-UHFFFAOYSA-N 0.000 claims description 2
- NPCLRBQYESMUPD-UHFFFAOYSA-N 2-methylpropanethioamide Chemical compound CC(C)C(N)=S NPCLRBQYESMUPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- QIOZLISABUUKJY-UHFFFAOYSA-N Thiobenzamide Chemical compound NC(=S)C1=CC=CC=C1 QIOZLISABUUKJY-UHFFFAOYSA-N 0.000 claims description 2
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 claims description 2
- 229960001748 allylthiourea Drugs 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- JXRGNOBBIHTYBO-UHFFFAOYSA-N n-ethylethanethioamide Chemical compound CCNC(C)=S JXRGNOBBIHTYBO-UHFFFAOYSA-N 0.000 claims description 2
- MWCGLTCRJJFXKR-UHFFFAOYSA-N n-phenylethanethioamide Chemical compound CC(=S)NC1=CC=CC=C1 MWCGLTCRJJFXKR-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 claims description 2
- KOUKXHPPRFNWPP-UHFFFAOYSA-N pyrazine-2,5-dicarboxylic acid;hydrate Chemical compound O.OC(=O)C1=CN=C(C(O)=O)C=N1 KOUKXHPPRFNWPP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- 229910000375 tin(II) sulfate Inorganic materials 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000012983 electrochemical energy storage Methods 0.000 abstract 1
- 230000001954 sterilising effect Effects 0.000 description 9
- 238000004659 sterilization and disinfection Methods 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- ALRFTTOJSPMYSY-UHFFFAOYSA-N tin disulfide Chemical compound S=[Sn]=S ALRFTTOJSPMYSY-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- HPIGCVXMBGOWTF-UHFFFAOYSA-N isomaltol Natural products CC(=O)C=1OC=CC=1O HPIGCVXMBGOWTF-UHFFFAOYSA-N 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G19/00—Compounds of tin
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
Abstract
The invention discloses a SnS with a photothermal function2The nano-sheet array structure and the preparation method thereof comprise the following steps: respectively stirring and dispersing the tin salt and the sulfide in a solvent uniformly; then, sequentially adding the two solutions into the same solvent dissolved with the surfactant; after fully stirring and uniformly mixing, transferring the mixed solution into a reaction kettle with a substrate, and carrying out solvothermal reaction for a certain time at a specific temperature; after the reaction kettle is naturally cooled to room temperature, repeatedly washing the substrate by using distilled water and absolute ethyl alcohol; vacuum drying to obtain the product with SnS on the surface2A fibrous material of a nanosheet array structure. The invention prepares SnS with the photothermal function by a one-step solvothermal method2Nanosheet-supported fibrous material utilizing SnS2Excellent electrochemical performanceThe chemical property, the photoelectric response capability and the photothermal conversion capability broaden the application of the fiber substrate in the aspects of photothermal antibiosis, photoelectric detection and electrochemical energy storage.
Description
Technical Field
The invention relates to a SnS with a photothermal function2A nano-sheet array structure and a preparation method thereof belong to the technical field of preparation of inorganic nano-materials and photo-thermal functional materials.
Background
The antibacterial material has important application value and market demand in the life health field, and is an important guarantee for human health. The residual bacteria on the surface of the disposable protective material after use are easy to cause secondary pollution, and seriously threaten the environmental safety and the human life health. Therefore, the protective material with excellent sterilization function is researched and developed, the waste of resources can be effectively reduced, and the protective material has important social value and scientific significance for national economy and human life health. The currently developed sterilization modes include high-temperature high-pressure sterilization, chemical sterilization, photo-thermal sterilization and the like, and the former two modes have the problems of high energy consumption, strong equipment dependence, biological cytotoxicity, bacterial drug resistance and the like, and are not beneficial to the sustainable development of the environment. In contrast, photothermal sterilization utilizes the particularity of the band gap of the photothermal functional material to convert light energy into local heat energy, has the advantages of low energy consumption, environmental friendliness, high safety and the like, and is expected to realize remote accurate sterilization of protective articles.
Tin disulfide (SnS)2) Has a typical two-dimensional layered structure, and a special graphite-like structure of the two-dimensional layered structure endows SnS2Excellent electrochemical performance, photoelectric response capability and photothermal conversion capability. At present, with respect to SnS2Research on two-dimensional materials focuses on improving SnS2Electrochemical stability and electrocatalytic properties. For example, CN111354929A discloses a preparation method of a carbon fiber-tin disulfide electrode material with a multilayer core-shell structure, which obtains an array structure in which tin disulfide nanosheets vertically grow on the surface of carbon nanofibers, and enhances the electrochemical stability thereof. CN109286011A discloses a preparation method of a tin disulfide/vertical graphene nanosheet array electrode, wherein a flexible electrode prepared by a plasma enhanced chemical vapor deposition method has a porous grid structure, and the electrochemical performance of the flexible electrode is remarkably improved. CN110190266A discloses metal heteroatom doped two-dimensional SnS2Nano-sheetThe array vertically grows on the carbon cloth and is used as the preparation method of the negative electrode material of the sodium-ion battery, and the prepared electrode material has excellent specific capacity, rate capability and rapid charge and discharge performance. CN112018354A discloses an array-shaped SnS for potassium ion battery negative electrode2The preparation method of the/MXene composite material shows high specific capacity and good cycling stability. CN113549949A discloses an SnS2-xOxThe preparation method of the/CC nanosheet array obtains SnS with surface oxygen modification on the surface of the carbon paper2Nanosheet array, improving SnS2Nanosheet-catalyzed CO2Reduction to formate and syngas (CO and H)2) Electrocatalytic activity of (c). However, with respect to SnS2The research on the photo-thermal function of the two-dimensional material is rarely reported. Thus, using SnS2Excellent photo-thermal conversion capability, preparation of novel protective material with photo-thermal function and widening of SnS2The application in the direction of novel medical sterilization materials has very important market value.
Disclosure of Invention
The invention aims to provide an SnS with a photo-thermal function2A nanosheet array structure and a method for making the same.
First, SnS2Preparation of nanosheet array structure
The invention discloses an SnS with an array structure2The preparation method of the nano-sheet comprises the steps of adopting a one-step solvothermal method, respectively dispersing a tin source material and a sulfur source material in a solvent with the same volume according to a certain molar ratio, and magnetically stirring for 10-30 min; then, sequentially adding the two solutions into the same solvent dissolved with the surfactant, and magnetically stirring for 10-30 min; after uniformly mixing, transferring the mixed solution into a reaction kettle with a substrate, and carrying out solvothermal reaction for 5-24 h at 150-200 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and carrying out vacuum drying at the temperature of 30-80 ℃ to obtain SnS with the surface having the array structure2The nano-sheet coats the fiber material.
Wherein the tin source material is a tin salt compound including SnCl2·2H2O、SnCl2、SnCl4·5H2O、SnCl4、Sn(COO)2、SnSO4One or two of them.
The sulfur source material is one or two of thioacetamide, thiourea, thioisobutyramide, thioacetic amine, ethyl thioacetamide, allyl thiourea, thioacetic acid, thiobenzamide, dithiourea and thioacetanilide.
The molar ratio of the tin source material to the sulfur source material is 1: 0.1-1: 10.
the solvent is one or two of deionized water, ethylene glycol, isopropanol and n-butanol, and the concentration of the tin source material and the sulfur source material in the solvent is 0.01-0.1 mmol/mL.
The surfactant is one or two of sodium dodecyl sulfate, polyvinylpyrrolidone, tween-80, polyethylene glycol, polyoxyethylene lauryl ether and sodium stearate, and the concentration of the surfactant is 0.005-0.1 g/mL.
The substrate is one or two of carbon paper, carbon cloth, disposable medical mask filter layer, melt-blown cloth, non-woven fabric, cotton fabric, filter paper, silk and polyester fiber, and the size is 0.5cm × 0.5cm to 4cm × 4 cm.
In conclusion, the SnS with the photothermal function prepared by the invention2Compared with the prior art, the nano-sheet coated fiber material has the following advantages:
1. SnS with photothermal function prepared in the invention2The nanosheet-coated fiber material is realized by a one-step solvothermal method, the preparation process is simple, the operability is strong, and the large-scale industrial application of the product is facilitated;
2. SnS with photothermal function prepared in the invention2Nanosheet-coated fibrous material, SnS2The nano-sheets are uniformly distributed on the surface of the fiber, the product has uniform appearance and strong repeatability and controllability, and SnS can be obtained on the surfaces of various substrates2The nano sheet array structure has strong adaptability, and the preparation method adopted by the invention can be suitable for functional protective materials made of various materials, including carbon paper, carbon cloth, disposable medical mask filter layer, melt-blown cloth, non-woven fabric,Cotton fabric, filter paper, silk, polyester fiber, etc.;
3. SnS with photothermal function prepared in the invention2The nano-sheet is used to coat the filter layer of the mask and SnS is used2The nano-sheet has excellent photo-thermal conversion capability and is 0.2W cm-2The temperature can be raised to 80 ℃ within 1min under the irradiation of simulated sunlight of the density, and the application of the protective material with the photothermal function in the fields of photothermal sterilization and biomedical materials is greatly promoted.
Drawings
FIG. 1 shows SnS2Scanning electron microscope photos of the nano sheet array structure on the disposable medical mask filter layer.
FIG. 2 shows SnS prepared in example 52The filter layer of the nano-sheet coated disposable medical mask is 0.2W cm-2And simulating an infrared imaging picture after sunlight irradiation for 1 min.
Detailed Description
The following description of the invention provides an SnS with a photothermal function2The preparation and performance of the nanosheet array structure is further illustrated.
Example 1
1.0mmol of SnCl2·2H2O and 1.0mmol thioacetamide are respectively and uniformly dispersed in 1.6mL isopropanol and are magnetically stirred for 20 min; then, 1.0g of polyvinylpyrrolidone is dispersed in 30mL of isopropanol and is fully dissolved by magnetic stirring for 30 min; then SnCl2·2H2Sequentially adding the dispersion liquid of O and thioacetamide into an isopropanol solution dissolved with polyvinylpyrrolidone, and magnetically stirring for 30 min; after uniform mixing, transferring the mixed solution into a polytetrafluoroethylene reaction kettle lining provided with 2cm multiplied by 2cm carbon cloth, sealing the stainless steel reaction kettle, and carrying out solvothermal reaction for 10 hours at 170 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The carbon cloth is coated by the nanosheets.
Example 2
Adding 0.5mmol of SnCl2·2H2O and 0.5mmol thioacetamide in 1.0mL isopropanolDispersing uniformly, and magnetically stirring for 20 min; then 0.5g of polyvinylpyrrolidone is dispersed in 30mL of isopropanol and is fully dissolved by magnetic stirring for 30 min; then SnCl2·2H2Sequentially adding the dispersion liquid of O and thioacetamide into an isopropanol solution dissolved with polyvinylpyrrolidone, and magnetically stirring for 30 min; after uniform mixing, transferring the mixed solution into a polytetrafluoroethylene reaction kettle lining provided with 2cm multiplied by 2cm carbon cloth, sealing the stainless steel reaction kettle, and carrying out solvothermal reaction for 10 hours at 170 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The carbon cloth is coated by the nanosheets.
Example 3
Adding 0.8mmol of SnCl4·5H2O and 0.8mmol thioacetamide are respectively and uniformly dispersed in 1.6mL isopropanol and are magnetically stirred for 20 min; then, 1.0g of polyvinylpyrrolidone is dispersed in 30mL of isopropanol and is fully dissolved by magnetic stirring for 30 min; then SnCl4·5H2Sequentially adding the dispersion liquid of O and thioacetamide into an isopropanol solution dissolved with polyvinylpyrrolidone, and magnetically stirring for 30 min; after uniform mixing, transferring the mixed solution into a polytetrafluoroethylene reaction kettle lining provided with a disposable medical mask filter layer of 1cm multiplied by 1cm, sealing the stainless steel reaction kettle, and carrying out solvothermal reaction for 12 hours at 160 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The nano-sheet is coated on a disposable medical mask filter layer.
Example 4
Adding 0.7mmol of SnCl2·2H2O and 0.7mmol thiourea are respectively and uniformly dispersed in 1.6mL ethylene glycol, and are magnetically stirred for 20 min; then 0.5g of polyvinylpyrrolidone is dispersed in 30mL of glycol, and is fully dissolved by magnetic stirring for 30 min; then SnCl2·2H2Adding the dispersion liquid of O and thiourea into a glycol solution dissolved with polyvinylpyrrolidone, and magnetically stirring for 30 min; after mixing uniformly, the mixed solution was transferred to a container of 1cmSealing a polytetrafluoroethylene reaction kettle lining of a disposable medical mask filter layer with the x of 1cm in a stainless steel reaction kettle, and carrying out solvothermal reaction for 12 hours at 160 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The nano-sheet is coated on a disposable medical mask filter layer.
Example 5
Adding 0.7mmol of SnCl2·2H2O and 0.7mmol thioacetamide are respectively and uniformly dispersed in 1.6mL glycol, and are magnetically stirred for 20 min; then 0.5g of polyvinylpyrrolidone is dispersed in 30mL of glycol, and is fully dissolved by magnetic stirring for 30 min; then SnCl2·2H2Sequentially adding the dispersion liquid of O and thioacetamide into a glycol solution dissolved with polyvinylpyrrolidone, and magnetically stirring for 30 min; after uniform mixing, transferring the mixed solution into a polytetrafluoroethylene reaction kettle lining provided with a disposable medical mask filter layer of 3cm multiplied by 3cm, sealing the stainless steel reaction kettle, and carrying out solvothermal reaction for 12 hours at 160 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The nano-sheet is coated on a disposable medical mask filter layer.
Example 6
1.0mmol of SnCl2·2H2O and 1.0mmol thioacetamide are respectively and uniformly dispersed in 1.6mL glycol, and are magnetically stirred for 20 min; then 0.5g of tween-80 is dispersed in 30mL of glycol, and the mixture is stirred magnetically for 30min to be fully dissolved; then SnCl2·2H2Sequentially adding the dispersion liquid of O and thioacetamide into a glycol solution dissolved with Tween-80, and magnetically stirring for 30 min; after uniform mixing, transferring the mixed solution into a polytetrafluoroethylene reaction kettle lining provided with a disposable medical mask filter layer of 3cm multiplied by 3cm, sealing the stainless steel reaction kettle, and carrying out solvothermal reaction for 24 hours at 170 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and vacuum drying at 40 ℃ to obtain SnS with the surface having the array structure2The nano-sheet is coated on a disposable medical mask filter layer.
The performance of the filtering layer of the disposable medical mask coated with the SnS2 nanosheet array prepared in example 5 was evaluated:
1.SnS2microscopic morphology observation of nanosheet array structure
The test method comprises the following steps: SnS after hydrothermal growth is observed by ZEISS Gemini SEM 300 type scanning electron microscope2The nano-sheet array structure has an accelerating voltage of 5 kV.
FIG. 1 is a SEM picture of the disposable medical mask filter layer after the solvothermal reaction, and it can be seen from the SEM picture that a large amount of SnS is uniformly distributed on the surface of the fiber in the disposable medical mask filter layer2Nano-sheets in an ordered array structure.
2.SnS2Evaluation of photothermal Properties of nanosheet-coated fibers
The test method comprises the following steps: : A350W short-arc xenon lamp is adopted to simulate sunlight to irradiate the super-hydrophobic sponge, and the energy density is 0.2W cm-2The irradiation distance is 25 cm; the change of the surface temperature of the superhydrophobic sponge with the irradiation time was recorded using an ST 9450A + type thermal imager of a hima meter, the distance between the thermal imager and the sample being set at 25 cm.
FIG. 2 shows SnS2The surface temperature change condition of the filter layer of the mask coated by the nano-sheets after 1min of sunlight simulation irradiation, SnS2The surface temperature of the filter layer of the mask coated by the nano-sheets is increased to 80.0 ℃, compared with that of the original mask filter layer which is not modified under the same irradiation condition, the surface temperature of the original mask filter layer is only 30.0 ℃, and the SnS is proved2The filter layer of the mask coated by the nanosheets has excellent photo-thermal conversion capability.
Claims (8)
1. SnS with optothermal function2Nanosheet array structure, wherein the SnS is2The nano sheets are in an array structure on the surface of the substrate and are uniformly distributed, the transverse size of the nano sheets is 100-400 nm, and the thickness of the nano sheets is 5-10 nm.
2. SnS with optothermal function2The preparation method of the nanosheet array structure is characterized in that a one-step solvothermal method is adopted, a tin source material and a sulfur source material are respectively dispersed in a solvent with the same volume according to a certain molar ratio, and magnetic stirring is carried out for 10-30 min; then, sequentially adding the two solutions into the same solvent dissolved with the surfactant, and magnetically stirring for 10-30 min; after uniformly mixing, transferring the mixed solution into a reaction kettle with a substrate, and carrying out solvothermal reaction for 5-24 h at 150-200 ℃; after the reaction kettle is naturally cooled to room temperature, washing the substrate with distilled water and absolute ethyl alcohol for three times respectively, and carrying out vacuum drying at the temperature of 30-80 ℃ to obtain SnS with the surface having the array structure2The nano-sheet coats the fiber material.
3. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the tin source material is a tin salt compound including SnCl2·2H2O、SnCl2、SnCl4·5H2O、SnCl4、Sn(COO)2、SnSO4One or two of them.
4. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the sulfur source material is one or two of thioacetamide, thiourea, thioisobutyramide, thioacetic amine, ethyl thioacetamide, allyl thiourea, thioacetic acid, thiobenzamide, dithiourea and thioacetanilide.
5. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the molar ratio of the tin source material to the sulfur source material is 1: 0.1-1: 10.
6. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the solvent is deionized water, ethylene glycol, isopropanol, and n-butanolThe concentration of the tin source material and the sulfur source material in the solvent is 0.01-0.1 mmol/mL.
7. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the surfactant is one or two of sodium dodecyl sulfate, polyvinylpyrrolidone, tween-80, polyethylene glycol, polyoxyethylene lauryl ether and sodium stearate, and the concentration of the surfactant is 0.005-0.1 g/mL.
8. SnS with optothermal function according to claim 22The preparation method of the nano-sheet array structure is characterized by comprising the following steps: the substrate is one or two of carbon paper, carbon cloth, a disposable medical mask filter layer, melt-blown cloth, non-woven fabric, cotton fabric, filter paper, silk and polyester fiber, and the size of the substrate is 0.5cm multiplied by 0.5cm to 4cm multiplied by 4 cm.
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