CN110586063A - Carbon fiber loaded zinc oxide photocatalytic composite material and preparation method thereof - Google Patents
Carbon fiber loaded zinc oxide photocatalytic composite material and preparation method thereof Download PDFInfo
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- CN110586063A CN110586063A CN201911014624.8A CN201911014624A CN110586063A CN 110586063 A CN110586063 A CN 110586063A CN 201911014624 A CN201911014624 A CN 201911014624A CN 110586063 A CN110586063 A CN 110586063A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 113
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 113
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 93
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 46
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 18
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- 238000002791 soaking Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 9
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 9
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000004246 zinc acetate Substances 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- 229910001868 water Inorganic materials 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000004298 light response Effects 0.000 abstract description 3
- 230000006798 recombination Effects 0.000 abstract description 3
- 238000005215 recombination Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 40
- 239000008367 deionised water Substances 0.000 description 10
- 229910021641 deionized water Inorganic materials 0.000 description 10
- 229960004011 methenamine Drugs 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003911 water pollution Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000004753 textile Substances 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
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- B01J35/39—
-
- B01J35/58—
Abstract
The invention discloses a carbon fiber loaded zinc oxide photocatalytic composite material and a preparation method thereof. The method overcomes the problems of high zinc oxide photoproduction electron-hole pair recombination rate, difficult recovery, poor visible light response capability and the like in the prior art, has simple process, low cost, short reaction period, few byproducts and no harm, and the obtained carbon fiber loaded zinc oxide photocatalytic composite material has high photocatalytic activity.
Description
Technical Field
The invention belongs to the technical field of carbon fiber materials, and particularly relates to a carbon fiber loaded zinc oxide photocatalytic composite material and a preparation method thereof.
Background
With the rapid development of economy, the problem of increasingly serious environmental pollution has attracted considerable attention. In various environmental pollutions, industrial wastewater generated in the processes of textile printing and dyeing and the like has wide influence range on the environment due to high toxicity and strong fluidity. Currently, the commonly used water pollution control technologies are electrolysis, ozonation, filtration, adsorption, reduction, and biodegradation. However, these methods have the disadvantages of high treatment cost, long reaction period, secondary pollution and the like. Therefore, there is a need to find a water pollution treatment technology which has high removal efficiency, simple operation, low cost and easy large-scale application. The semiconductor photocatalytic oxidation method is a novel water treatment technology and has the outstanding characteristics of low energy consumption, simple operation, thorough pollutant treatment, less secondary pollution and the like. Therefore, the technology has incomparable potential compared with the traditional water treatment method, and is a green water pollution control technology with wide application prospect.
Zinc oxide (ZnO) is a conventional II-VI semiconductor photocatalytic material that generates photo-generated electron-hole pairs under illumination that decompose organic pollutants into harmless H2O and CO2And arouse great interest. However, the powdered zinc oxide has some defects in practical application: firstly, zinc oxide particles are easy to agglomerate, so that the recombination rate of photo-generated electrons and holes is high, and the photocatalytic activity is reduced; secondly, the powder zinc oxide is easy to run off, and the recovery process is complex and the cost is high after the powder zinc oxide is used; finally, zinc oxide is a wide bandgap semiconductor material, and can generate photo-generated electron-hole pairs only under the irradiation of ultraviolet light, thereby greatly limiting the application of the zinc oxide in visible light bands.
Disclosure of Invention
The invention aims to: the carbon fiber loaded zinc oxide photocatalytic composite material and the preparation method thereof are provided, and the problems of high recombination rate of zinc oxide photoproduction electron-hole pairs, difficult recovery, poor visible light response capability and the like in the prior art are solved.
The technical scheme adopted by the invention is as follows:
a preparation method of a carbon fiber loaded zinc oxide photocatalytic composite material comprises the following steps:
s1, placing carbon fibers in an acetone solution, performing ultrasonic treatment for 30-120min, soaking for 24-48h, washing with water, and drying to obtain pretreated carbon fibers;
s2, putting the pretreated carbon fiber obtained in the step S1 into a nitric acid solution, heating for 1-3h, and drying to obtain a treated carbon fiber;
s3, mixing an ethanol solution of zinc acetate and an ethanol solution of sodium hydroxide according to a volume ratio of 1:1-1.2, stirring to obtain a seed solution, soaking the treated carbon fiber obtained in the step S2 in the seed solution for 30-120min, and drying to obtain a seed crystal layer carbon fiber material;
s4, mixing the zinc nitrate solution and the hexamethylenetetramine solution according to the volume ratio of 1:1-1.2 to prepare a growth liquid, immersing the seed crystal layer carbon fiber material obtained in the step S3 into the growth liquid, and heating for 5-11 hours to obtain the seed crystal layer carbon fiber material.
The carbon fiber has better processability, larger specific surface area and better visible light response capability, so that the carbon fiber becomes an ideal powder zinc oxide load carrier. Therefore, the composite material prepared by loading zinc oxide on the carbon fiber has wide application prospect in the production and living fields of sewage treatment and the like.
The zinc oxide belongs to a wide bandgap semiconductor, the bandgap becomes narrow after being compounded with the carbon fiber, the light absorption range can be expanded to a visible light wave band, and the application range of the zinc oxide is greatly enhanced; meanwhile, the carbon fiber has certain conductivity, and photoproduction electrons generated by the zinc oxide under the excitation of light can be transferred to the surface of the carbon fiber, so that the separation effect of photoproduction electron-hole pairs is enhanced, and the photocatalysis effect is enhanced.
Further, the drying temperature in the S1 and S2 steps is 30-80 ℃.
Further, the concentration of the nitric acid solution in the step of S2 is 25 to 75 vt%.
Further, the heating temperature in the step S2 is 60-90 ℃.
Further, the concentration of zinc acetate in the step of S3 is 0.001-0.0025mol/L, and the concentration of sodium hydroxide is 0.0045-0.0055 mol/L.
Further, the drying temperature in the step S3 is 150 ℃.
Further, the concentration of zinc nitrate in the step S4 is 0.04-0.06mol/L, and the concentration of hexamethylene tetramine is 0.04-0.06 mol/L.
Further, the heating temperature in the step S4 is 60-100 ℃.
The carbon fiber loaded zinc oxide photocatalytic composite material prepared by the method is provided.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the zinc oxide is loaded on the surface of the carbon fiber by adopting an impregnation method, the process is simple, the cost is lower, the reaction period is short, the byproducts are less and harmless, and the obtained carbon fiber loaded zinc oxide photocatalytic composite material has high photocatalytic activity and has wide application prospects in the fields of sewage treatment and other production and living;
2. the zinc oxide belongs to a wide bandgap semiconductor, the bandgap width is narrowed after the zinc oxide is compounded with the carbon fiber, the light absorption range can be expanded to a visible light wave band, and the application range of the zinc oxide is greatly enhanced;
3. the carbon fiber has certain conductivity, and photoproduction electrons generated by zinc oxide under the excitation of light can be transferred to the surface of the carbon fiber to enhance the separation effect of photoproduction electron-hole pairs, so that the photocatalysis effect is further enhanced;
4. the powder zinc oxide in the material prepared by the invention is not easy to lose and is simpler to recover, and meanwhile, the carbon fiber belongs to a flexible material, can be processed into different forms according to actual conditions, and is an ideal powder zinc oxide load carrier.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a scanning electron micrograph of an untreated carbon fiber;
FIG. 2 is a scanning electron micrograph of a treated carbon fiber;
FIG. 3 is a scanning electron microscope image of the prepared carbon fiber loaded zinc oxide photocatalytic composite material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The preparation method of the carbon fiber loaded zinc oxide photocatalytic composite material provided by the preferred embodiment of the invention comprises the following specific steps:
(1) placing the carbon fiber in an acetone solution, performing ultrasonic treatment for 1 hour, and soaking for 36 hours to remove impurities attached to the surface; cleaning carbon fibers with deionized water, placing the carbon fibers in a drying oven, and drying the carbon fibers in the drying oven at 60 ℃ to obtain pretreated carbon fibers for later use;
(2) adding nitric acid and deionized water according to a volume of 1:1 proportion, uniformly mixing and stirring, putting the carbon fiber into the mixed solution, heating and reacting for 2 hours at 80 ℃, and putting the mixture into a drying oven to dry at 60 ℃ to obtain treated carbon fiber for later use;
(3) preparing ethanol solutions with the concentrations of zinc acetate and sodium hydroxide of 0.002mol/L and 0.005mol/L respectively, stirring to form a seed solution, soaking the carbon fiber in the seed solution for 1 hour, and then putting the seed solution in a drying oven at 150 ℃ for drying for 1 hour to form a seed crystal layer carbon fiber material for later use;
(4) preparing zinc nitrate and hexamethylenetetramine growth liquid with the concentration of 0.05mol/L, immersing the seed crystal layer carbon fiber material into the solution, and heating for 7 hours at the temperature of 80 ℃ to obtain the product.
Example 2
The preparation method of the carbon fiber loaded zinc oxide photocatalytic composite material provided by the preferred embodiment of the invention comprises the following specific steps:
(1) putting the carbon fiber in an acetone solution, performing ultrasonic treatment for 2 hours, and soaking for 48 hours to remove impurities attached to the surface; cleaning carbon fibers with deionized water, placing the carbon fibers in a drying oven, and drying the carbon fibers in the drying oven at 60 ℃ to obtain pretreated carbon fibers for later use;
(2) adding nitric acid and deionized water according to the volume of 3: 1 proportion, uniformly mixing and stirring, putting the carbon fiber into the mixed solution, heating and reacting for 3 hours at 90 ℃, and putting the mixture into a drying oven for drying at 60 ℃ to obtain treated carbon fiber for later use;
(3) preparing ethanol solutions with the concentrations of zinc acetate and sodium hydroxide of 0.0025mol/L and 0.0055mol/L respectively, stirring to form a seed solution, soaking the carbon fiber in the seed solution for 1 hour, and then putting the seed solution into a 150 ℃ oven to bake for 1 hour to form a seed crystal layer carbon fiber material for later use;
(4) preparing zinc nitrate and hexamethylenetetramine growth liquid with the concentration of 0.06mol/L, immersing the seed crystal layer carbon fiber material into the solution, and heating at 90 ℃ for 11 hours to obtain the product.
Example 3
The preparation method of the carbon fiber loaded zinc oxide photocatalytic composite material provided by the preferred embodiment of the invention comprises the following specific steps:
(1) placing the carbon fiber in an acetone solution, performing ultrasonic treatment for 1 hour, and soaking for 24 hours to remove impurities attached to the surface; cleaning carbon fibers with deionized water, placing the carbon fibers in a drying oven, and drying the carbon fibers in the drying oven at 60 ℃ to obtain pretreated carbon fibers for later use;
(2) adding nitric acid and deionized water according to a volume of 1: 3, uniformly mixing and stirring, putting the carbon fiber into the mixed solution, heating and reacting for 1h at 60 ℃, and putting the mixture into a drying oven to dry at 60 ℃ to obtain treated carbon fiber for later use;
(3) preparing ethanol solutions with the concentrations of zinc acetate and sodium hydroxide of 0.001mol/L and 0.0045mol/L respectively, stirring to form a seed solution, soaking the carbon fiber in the seed solution for 30min, and then putting the seed solution in a drying oven at 150 ℃ for drying for 1h to form a seed crystal layer carbon fiber material for later use;
(4) preparing zinc nitrate and hexamethylenetetramine growth liquid with the concentration of 0.04mol/L, immersing the seed crystal layer carbon fiber material into the solution, and heating for 5 hours at the temperature of 60 ℃ to obtain the product.
Example 4
The preparation method of the carbon fiber loaded zinc oxide photocatalytic composite material provided by the preferred embodiment of the invention comprises the following specific steps:
(1) placing the carbon fiber in an acetone solution, performing ultrasonic treatment for 1 hour, and soaking for 36 hours to remove impurities attached to the surface; cleaning carbon fibers with deionized water, placing the carbon fibers in a drying oven, and drying the carbon fibers in the drying oven at 60 ℃ to obtain pretreated carbon fibers for later use;
(2) adding nitric acid and deionized water according to a volume of 2: 1 proportion, uniformly mixing and stirring, putting the carbon fiber into the mixed solution, heating and reacting for 2 hours at 80 ℃, and putting the mixture into a drying oven to dry at 60 ℃ to obtain treated carbon fiber for later use;
(3) preparing ethanol solutions with the concentrations of zinc acetate and sodium hydroxide of 0.0025mol/L and 0.0045mol/L respectively, stirring to form a seed solution, soaking the carbon fiber in the seed solution for 2 hours, and then putting the seed solution into a 150 ℃ oven to bake for 1 hour to form a seed crystal layer carbon fiber material for later use;
(4) preparing zinc nitrate growth liquid with the concentration of 0.06mol/L and hexamethylene tetramine growth liquid with the concentration of 0.04mol/L, immersing the seed crystal layer carbon fiber material into the growth liquid, and heating for 7 hours at the temperature of 90 ℃ to obtain the carbon fiber material.
Example 5
The preparation method of the carbon fiber loaded zinc oxide photocatalytic composite material provided by the preferred embodiment of the invention comprises the following specific steps:
(1) placing the carbon fiber in an acetone solution, performing ultrasonic treatment for 1 hour, and soaking for 36 hours to remove impurities attached to the surface; cleaning carbon fibers with deionized water, placing the carbon fibers in a drying oven, and drying the carbon fibers in the drying oven at 60 ℃ to obtain pretreated carbon fibers for later use;
(2) adding nitric acid and deionized water according to a volume of 1: 2, uniformly mixing and stirring, putting the carbon fiber into the mixed solution, heating and reacting for 3 hours at 80 ℃, and putting the mixture into a drying oven to dry at 60 ℃ to obtain treated carbon fiber for later use;
(3) preparing ethanol solutions with the concentrations of zinc acetate and sodium hydroxide of 0.001mol/L and 0.0055mol/L respectively, stirring to form a seed solution, soaking the carbon fiber in the seed solution for 1 hour, and then putting the seed solution into a 150 ℃ oven to bake for 1 hour to form a seed crystal layer carbon fiber material for later use;
(4) preparing zinc nitrate growth liquid with the concentration of 0.04mol/L and hexamethylene tetramine growth liquid with the concentration of 0.06mol/L, immersing the seed crystal layer carbon fiber material into the growth liquid, and heating for 9 hours at the temperature of 80 ℃ to obtain the carbon fiber material.
Examples of the experiments
The carbon fiber loaded zinc oxide photocatalytic composite material prepared in the embodiment 1 of the invention is observed by a scanning electron microscope, and when the carbon fiber is not treated, the carbon fiber is as shown in figure 1; after the carbon fibers are acidified by the nitric acid solution, as shown in fig. 2; the prepared carbon fiber loaded zinc oxide photocatalytic composite material is shown in figure 3.
As can be seen from the figure, the surface morphology of the carbon fiber is changed, the adsorption effect of the carbon fiber provides a high-concentration reaction site for photocatalysis, and the catalytic efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A preparation method of a carbon fiber loaded zinc oxide photocatalytic composite material is characterized by comprising the following steps:
s1, placing carbon fibers in an acetone solution, performing ultrasonic treatment for 30-120min, soaking for 24-48h, washing with water, and drying to obtain pretreated carbon fibers;
s2, putting the pretreated carbon fiber obtained in the step S1 into a nitric acid solution, heating for 1-3h, and drying to obtain a treated carbon fiber;
s3, mixing an ethanol solution of zinc acetate and an ethanol solution of sodium hydroxide according to a volume ratio of 1:1-1.2, stirring to obtain a seed solution, soaking the treated carbon fiber obtained in the step S2 in the seed solution for 30-120min, and drying to obtain a seed crystal layer carbon fiber material;
s4, mixing the zinc nitrate solution and the hexamethylenetetramine solution according to the volume ratio of 1:1-1.2 to prepare a growth liquid, immersing the seed crystal layer carbon fiber material obtained in the step S3 into the growth liquid, and heating for 5-11 hours to obtain the seed crystal layer carbon fiber material.
2. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the drying temperature in the S1 and S2 steps is 30-80 ℃.
3. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the concentration of the nitric acid solution in the step S2 is 25-75 vt%.
4. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the heating temperature in the step S2 is 60-90 ℃.
5. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the concentration of the zinc acetate in the step S3 is 0.001-0.0025mol/L, and the concentration of the sodium hydroxide is 0.0045-0.0055 mol/L.
6. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the drying temperature in the step S3 is 150 ℃.
7. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the concentration of the zinc nitrate in the step S4 is 0.04-0.06mol/L, and the concentration of the hexamethylenetetramine is 0.04-0.06 mol/L.
8. The preparation method of the carbon fiber-loaded zinc oxide photocatalytic composite material according to claim 1, characterized in that: the heating temperature in the step S4 is 60-100 ℃.
9. The carbon fiber loaded zinc oxide photocatalytic composite material prepared by the method of any one of claims 1-8.
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| CN111229287A (en) * | 2020-03-25 | 2020-06-05 | 吉林师范大学 | Carbon fiber cloth load tubular g-C3N4Photocatalytic material and preparation method thereof |
| CN113617337A (en) * | 2021-08-25 | 2021-11-09 | 齐齐哈尔大学 | Preparation method and application of adsorbent based on garden waste |
| CN114318847A (en) * | 2021-12-21 | 2022-04-12 | 上海应用技术大学 | Carbon fiber composite material loaded with oxygen-deficient copper oxide and preparation method and application thereof |
| CN114471519A (en) * | 2022-02-11 | 2022-05-13 | 青岛科技大学 | Active zinc catalyst, preparation method thereof and application of active zinc catalyst in catalyzing ibuprofen rearrangement reaction |
| CN114318847B (en) * | 2021-12-21 | 2024-04-26 | 上海应用技术大学 | Carbon fiber composite material loaded with oxygen-deficient copper oxide and preparation method and application thereof |
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