A method for preparing self-cleaning, photoluminescent ceramics integrated with solid waste using epoxy resin

Abstract

This application discloses a method for preparing self-cleaning and photoluminescent ceramics integrated with solid waste using epoxy resin. In ball mill A, a dispersant and epoxy resin are added to deionized water to form a premix. Photoluminescent powder, self-cleaning powder, and a first portion of glass powder are then added, and the mixture is ball-milled. In ball mill B, another premix is ​​prepared, and fly ash and a second portion of glass powder are added, and the mixture is ball-milled again. A curing agent is added to the slurry after ball milling in ball mill A, and the mixture is ball-milled again to obtain a mixed slurry a. A curing agent is added to the slurry after ball milling in ball mill B, and the mixture is ball-milled again to obtain a mixed slurry b. The mixed slurry b is vacuum-degassed and injected into a mold. After the surface slightly solidifies, the ball-milled mixed slurry a is vacuum-degassed and injected into the mold again to obtain a gel wet preform. The gel wet preform and the mold are placed in a constant temperature and humidity chamber for curing to obtain a green preform. The preform is then placed in a furnace for debinding and sintering to obtain the self-cleaning and photoluminescent ceramics integrated with solid waste using epoxy resin. The use of solid waste materials as the substrate reduces production costs.

Description

Technical Field

[0001] This invention belongs to the field of self-cleaning photoluminescent ceramics technology, specifically relating to a method for preparing self-cleaning photoluminescent ceramics integrated with solid waste using epoxy resin. Background Technology

[0002] Photoluminescent ceramics possess the "3H" technical characteristics of high brightness, high durability, and high tolerance. Installation requires no electrical wiring, resulting in permanent energy savings and significant performance advantages. By overcoming key technical challenges and employing ceramic production processes, mass production is possible, and the technology has strong potential for recycling solid waste and conserving resources. After installation, the photocatalytic principle eliminates the need for sterilization by personnel, protecting human health and saving substantial manpower and resources.

[0003] Photoluminescent spontaneously emitting materials are materials that can store light energy when excited by a light source and slowly release the stored energy as light after excitation stops, making them a type of green light source material. Rare-earth aluminate and silicate luminescent materials developed in the last century have advantages such as long luminescence time, high brightness, good stability, and non-toxicity. Currently, most photoluminescent safety indicator materials used domestically and internationally can be shaped using plastics, rubber, and paints at room temperature or low temperature. Ceramic materials, compared to these materials, offer advantages such as high strength, less susceptibility to environmental influences, long service life, and ease of cleaning.

[0004] Therefore, previous researchers applied for the following patents during the research of photoluminescent ceramics: For example, patent document CN115557779B, filed on October 21, 2022, discloses an all-weather self-cleaning photoluminescent ceramic and its preparation method, including the following steps: S01: Weighing, based on the total mass of raw material powder as 100%, weigh 40% to 45% of 10-30 mesh quartz raw material, 35% to 39% of 50-100 mesh quartz raw material, and 5% to 20% of 150-250 mesh quartz raw material by mass percentage, with the remainder being raw material powder of photoluminescent materials; S02: Mixing The process involves several steps: S01: Weighing the powdered raw material (S01) and placing it in a ball mill jar, simultaneously adding grinding balls and deionized water for ball milling and mixing; S03: Molding: Vacuum degassing the slurry obtained from ball milling in S02, then injecting the degassed slurry into a mold to form a green body; S04: Drying: After the green body obtained in S03 has been left to stand for 6-13 hours, it is demolded and then placed in a drying oven for drying. The ceramic involved in this invention can achieve air purification and self-cleaning. A nano-TiO2 solution is uniformly sprayed onto the surface of the photoluminescent ceramic using a spraying machine, thus obtaining a photoluminescent ceramic with self-cleaning function. However, patent document CN115557779B describes a method of uniformly spraying nano-TiO2 solution onto the surface of photoluminescent ceramic using a spraying machine. This method has high equipment costs, requires highly skilled personnel, and results in a thin coating thickness, which can easily lead to a decrease in self-cleaning ability after prolonged use.

[0005] Another patent document, CN103643773B, filed on December 12, 2013, discloses a photoluminescent ceramic tile and its production method. This method involves applying a photoluminescent material to a bisque-fired ceramic body using a printing or fabrication process to create a photoluminescent glass layer. This layer can display various colors in the dark and has a long afterglow time. The process can employ screen printing or fabrication, allowing for easy changing of patterns. Combined with color matching and embossed molds, it can achieve a variety of decorative art effects with strong three-dimensionality and rich pattern layers. The method disclosed in this invention solves the problems of poor wear resistance, weather resistance, and chemical corrosion resistance of existing photoluminescent materials. While it creates a photoluminescent glass layer on a bisque-fired ceramic body using a printing or fabrication process, the limitations of the glaze layer thickness restrict the amount of photoluminescent material it can hold, thus limiting the photoluminescence effect. Furthermore, with increasing glaze wear over time, the photoluminescence effect also decreases, making the existing technology somewhat inadequate.

[0006] Patent document CN202311779853.5 discloses a method for preparing photoluminescent ceramics by pressure molding, comprising: S1: preparing an alkaline solution with a concentration of 1-45 wt%; S2: mixing the alkaline solution and low-melting-point glass powder, stirring evenly to obtain a mixture; S3: heating the mixture while keeping it moist to form a water glass film on the surface of the low-melting-point glass powder; S4: drying the product of step S3 to evaporate excess moisture, so that the material is in block form;

[0007] S5: The material is crushed, screened, and granulated to obtain particles with a certain degree of flowability; S6: The particles from step S5 are mixed evenly with the photoluminescent material and dry-pressed; S7: The dry-pressed green body is sent into a kiln for sintering, and the finished photoluminescent ceramic product is obtained after exiting the kiln. This invention solves the problem of unevenly adding water glass binder during powder mixing by adding an alkaline solution, which reacts with silica to form a uniformly thick water glass film on the surface of the glass particles. This allows the pressure molding process to be applied to the production of photoluminescent ceramics. The green body is obtained through dry pressing, and then sintered to obtain the finished photoluminescent ceramic product. However, considering that existing technologies require material crushing, screening, granulation, mixing, and dry pressing, the preparation cycle is long, increasing the difficulty and complexity of the process. Furthermore, impurities are easily introduced, leading to a decrease in the quality of the finished product. The required molding equipment is costly, and the technology is challenging, making existing technologies somewhat insufficient. Summary of the Invention

[0008] Technical problems to be solved:

[0009] This application addresses the shortcomings of existing technologies by providing a method for preparing self-cleaning and photoluminescent ceramics integrated with solid waste using epoxy resin. The method employs a green and non-toxic epoxy resin system, resulting in a high-strength, uniformly dense, and clearly defined composite structure self-cleaning and photoluminescent ceramic. It fully utilizes solid waste materials such as fly ash and glass powder, and leverages photocatalysis to achieve a certain degree of self-cleaning ability under the action of self-cleaning powders. This process offers advantages such as simplicity, high efficiency, environmental friendliness, and low cost.

[0010] Technical solution:

[0011] To achieve the above objectives, this application provides the following technical solution:

[0012] A method for preparing integrated self-cleaning and photoluminescent ceramics for solid waste using epoxy resin, comprising the following steps:

[0013] Step 1: Take 40-120 parts of phosphorescent powder, 20-40 parts of self-cleaning powder, 80-200 parts of fly ash, 240-340 parts of the first part of glass powder, and 200-320 parts of the second part of glass powder according to the mass ratio.

[0014] Step 2: In ball mill jar A, add 6-14 parts of dispersant and 15-35 parts of epoxy resin to 100 parts of deionized water according to the mass-volume ratio to prepare a premix. Add phosphorescent powder, self-cleaning powder and the first part of glass powder at room temperature, and ball mill on a ball mill for 6-8 hours. In ball mill jar B, add 6-14 parts of dispersant and 15-35 parts of epoxy resin to 100 parts of deionized water according to the mass-volume ratio to prepare a premix. Add fly ash and the second part of glass powder at room temperature, and ball mill on a ball mill for 6-8 hours.

[0015] Step 3: Add 2-4 parts of curing agent to the slurry after ball milling in ball mill A, and ball mill again for 15-30 minutes to obtain mixed slurry a; add 2-4 parts of curing agent to the slurry after ball milling in ball mill B, and ball mill again for 15-30 minutes to obtain mixed slurry b.

[0016] Step 4: After vacuum degassing the mixed slurry b, inject it into the mold. After the surface has slightly solidified, vacuum degassing the ball-milled mixed slurry a and inject it into the mold to obtain a gel wet preform.

[0017] Step 5: Place the gel wet preform and the mold into a constant temperature and humidity chamber for curing to obtain the raw preform;

[0018] Step 6: Place the cured green blank in the furnace to remove the binder and then sinter it.

[0019] Furthermore, in the first step, the photoluminescent powder is a photoluminescent powder with photoluminescence storage capacity, which is prepared by doping rare earth long afterglow materials and rare earth activators; the self-cleaning powder is a self-cleaning powder with photocatalytic ability, specifically metal oxides and / or metal sulfides; glass powder is the matrix material, and fly ash and glass powder constitute solid waste powder, where fly ash is solid waste discharged from coal power generation, and metal oxides and / or metal sulfides are also present.

[0020] Furthermore, in the first step, the glass powder is composed of SiO2, and the fly ash has an oxide composition of one or more of Al2O3, SiO2, FeO, CaO, and TiO2; the rare earth-doped long afterglow material is Sr4Al. 14 O 25 One or more of SrAl2O4 and CaAl2O4, with Nd as the rare earth activator. 3+ Dy3 + Eu 2+ One or more of the following, wherein the metal oxides are TiO2 and / or ZnO, and the metal sulfides are ZnS and / or CdS.

[0021] Furthermore, in the second step, the epoxy resin is a green and non-toxic epoxy resin molding system; the epoxy resin is dissolved in deionized water to prepare a solution with a concentration of 10% to 25%, and then a dispersant is added to prepare a premixed solution; the dispersant is one or more of ammonium polyacrylate, ammonium citrate, and polyethylene glycol, and the ball milling speed in the second step is 500-600 r / min.

[0022] Furthermore, the curing agent in the third step is one or more of polyethyleneimine, cashew phenol modified amine, and polyamide, and the ball milling speed in the third step is 100-200 r / min.

[0023] Furthermore, in the fourth step, the vacuum degree for vacuum degassing is -50Kpa to -90Kpa, the vacuum degassing time is 15min, and the waiting time for the substrate surface to solidify is 20 to 60min.

[0024] Furthermore, the curing process in the fifth step specifically involves placing the gel wet preform and the mold into a constant temperature and humidity chamber.

[0025] The insulation temperature is 20℃~30℃.

[0026] Furthermore, in the sixth step, the debinding specifically involves heating to 600℃-700℃ at a rate of 0.5-2℃ / min at room temperature, holding at that temperature for 1-3 hours, and then cooling to room temperature with the furnace. The sintering specifically involves heating to 750℃-800℃ at a rate of 1℃-2℃ / min at room temperature, holding at that temperature for 2-4 hours, and then cooling to room temperature with the furnace.

[0027] Explanation of the principle: The mechanism of epoxy resin molding is that the crosslinking agent and monomers react to form a three-dimensional network structure, thereby solidifying the slurry in situ and gelling the whole. During the preparation of the composite structure, when it is at the gelation time point, it is easy to composite and less likely to cause mixing and stratification, thus obtaining a composite structure preform with a good overall interface.

[0028] Beneficial effects:

[0029] This application provides a method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin, which has the following advantages compared with the prior art:

[0030] 1. The present invention discloses a method for preparing self-cleaning-photoluminescent ceramics with an integrated solid waste composite structure by epoxy resin gel molding. The method utilizes the recycling of solid waste to prepare self-cleaning photoluminescent ceramics, with a wide range of material sources, making full use of solid waste materials and promoting sustainable economic and social development.

[0031] 2. The present invention provides a method for preparing a solid waste integrated composite structure self-cleaning-photoluminescent ceramic by epoxy resin gel molding, which adopts an environmentally friendly epoxy resin system, is green and environmentally friendly, clean and pollution-free, and meets the needs of green production.

[0032] 3. The present invention provides a method for preparing a solid waste integrated composite structure self-cleaning-photoluminescent ceramic by epoxy resin gel molding. The composite structure is integrally molded, and all the molding processes are epoxy resin systems. The one-time integral molding reduces the production cycle and improves the strength of the ceramic. The self-cleaning photoluminescent surface of a certain thickness increases the service life. The substrate uses solid waste materials, which reduces the production cost.

[0033] 4. By adopting a green and non-toxic epoxy resin system, a composite structure self-cleaning-photoluminescent ceramic with high strength, uniform density, and clear interface is obtained. It makes full use of solid waste materials such as fly ash and glass powder, and utilizes the photocatalytic principle to achieve a certain self-cleaning ability under the action of self-cleaning powder. This process has the advantages of being simple, efficient, green and environmentally friendly, and low cost. Attached Figure Description

[0034] Figure 1 This is a view of the upper surface of the unfinished blank in this application;

[0035] Figure 2 This is an interface diagram of the green blank of this application;

[0036] Figure 3 This is a diagram of the sintered green body and its luminescence in the dark. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and should not be construed as limiting the scope of protection of the invention.

[0038] Example 1

[0039] A method for preparing integrated self-cleaning and photoluminescent ceramics for solid waste using epoxy resin, comprising the following steps:

[0040] Step 1: Mix the phosphorescent powder SrAl2O4:Eu according to the specified mass ratio. 2+ ,Dy 3+ 4g, TiO2 2g, fly ash 20g, first batch of glass powder 34g, second batch of glass powder 20g;

[0041] Step 2: In ball mill jar A, add 0.6g of dispersant ammonium polyacrylate and 2.5g of epoxy resin to 10g of deionized water according to the mass-to-volume ratio to prepare a premix. Then, add phosphorescent powder SrAl2O4:Eu at room temperature. 2+ ,Dy 3+ Mixed powder A, consisting of 4g of fly ash, 2g of self-cleaning powder TiO2, and 34g of the first portion of glass powder, was added in three portions of 20g, 15g, and 5g. The prepared slurry was then milled in a planetary ball mill at 500r / min for 6 hours. Meanwhile, 0.6g of dispersant ammonium polyacrylate and 2.5g of epoxy resin were added to 10g of deionized water in a ball mill jar B according to the mass-volume ratio to prepare a premix. At room temperature, mixed powder B, consisting of 20g of fly ash and 20g of the second portion of glass powder, was added in three portions of 20g, 15g, and 5g. The prepared slurry was then milled in a planetary ball mill at 500r / min for 6 hours.

[0042] Step 3: Add 0.3g of curing agent polyethyleneimine to the slurry after ball milling in ball mill A, and ball mill at 200r / min for 15-30 minutes to obtain mixed slurry a. Add 0.3g of curing agent polyethyleneimine to the slurry after ball milling in ball mill B, and ball mill again at 200r / min for 15-30 minutes to obtain mixed slurry b.

[0043] Step 4: After degassing the mixed slurry b under vacuum of -90KPa for 15 minutes, inject it into the mold and wait for 60 minutes until the surface is slightly solidified. Then, after degassing the ball-milled mixed slurry a under vacuum of -90KPa for 15 minutes, inject it into the mold to obtain a gel wet preform.

[0044] Step 5: Place the gel wet preform and the mold into a constant temperature and humidity chamber at 20°C to solidify and shape into a raw preform;

[0045] Step 6: Place the cured green blank in a furnace and heat it to 700℃ at 1℃ / min and hold it for 2 hours to remove the glue. After cooling to room temperature in the furnace, place it in a furnace and heat it to 800℃ at 1℃ / min and hold it for 2 hours for sintering. After cooling to room temperature in the furnace, prepare epoxy resin integrated self-cleaning-photoluminescent ceramic.

[0046] Example 2

[0047] A method for preparing integrated self-cleaning and photoluminescent ceramics for solid waste using epoxy resin, comprising the following steps:

[0048] Step 1: Take the phosphorescent powder Sr4Al according to the specified mass ratio. 14 O 25 Eu 2+ ,Dy 3+ 8g, ZnO 3g, fly ash 14g, first batch of glass powder 29g, second batch of glass powder 26g;

[0049] Step 2: In ball mill jar A, add 1g of ammonium citrate dispersant and 3.5g of epoxy resin to 10g of deionized water according to the mass-to-volume ratio to prepare a premixed solution. Then, add Sr4Al phosphor at room temperature. 14 O 25 Eu 2+ ,Dy 3+ Mixed powder A, consisting of 8g of fly ash, 3g of self-cleaning ZnO powder, and 29g of the first portion of glass powder, was added in three portions of 20g, 10g, and 10g. The prepared slurry was then milled in a planetary ball mill at 550r / min for 7 hours. In ball mill jar B, 1g of ammonium citrate dispersant and 3.5g of epoxy resin were added to 10g of deionized water at a mass-volume ratio to prepare a premix. Then, mixed powder B, consisting of 14g of fly ash and 26g of the second portion of glass powder, was added at room temperature. Mixed powder B was added in three portions of 20g, 10g, and 10g. The prepared slurry was then milled in a planetary ball mill at 550r / min for 7 hours.

[0050] Step 3: Add 0.2g of cashew phenol modified amine as curing agent to the slurry after ball milling in ball mill A, and ball mill at 150r / min for 15-30 minutes to obtain mixed slurry a. Add 0.2g of cashew phenol modified amine as curing agent to the slurry after ball milling in ball mill B, and ball mill again at 150r / min for 15-30 minutes to obtain mixed slurry b.

[0051] Step 4: After degassing the mixed slurry b under vacuum of -70KPa for 15 minutes, inject it into the mold and wait for 40 minutes until the surface is slightly solidified. Then, after degassing the ball-milled mixed slurry a under vacuum of -70KPa for 15 minutes, inject it into the mold to obtain a gel wet preform.

[0052] Step 5: Place the gel wet preform and the mold into a constant temperature and humidity chamber at 25°C to solidify and shape the preform.

[0053] Step 6: Place the cured green blank in a furnace and heat it to 650℃ at a rate of 1.5℃ / min, hold it at that temperature for 2.5 hours to remove the binder. After cooling to room temperature in the furnace, place it back in the furnace and heat it to 775℃ at a rate of 1.5℃ / min, hold it at that temperature for 3 hours for sintering.

[0054] The epoxy resin obtained by cooling to room temperature in the furnace is used to prepare solid waste integrated self-cleaning-photoluminescent ceramics.

[0055] Example 3

[0056] A method for preparing integrated self-cleaning and photoluminescent ceramics for solid waste using epoxy resin, comprising the following steps:

[0057] Step 1: Mix the phosphorescent powders CaAl2O4 and Eu according to the specified mass ratio. 2+ ,Nd 3+ 12g, CdS 4g, fly ash 8g, first batch of glass powder 24g, second batch of glass powder 32g;

[0058] Step 2: In ball mill jar A, add 1.4g of polyethylene glycol dispersant and 1.5g of epoxy resin to 10g of deionized water according to the mass-to-volume ratio to prepare a premix. Then, add phosphorescent powder CaAl2O4:Eu at room temperature. 2+ ,Nd 3+ Mixed powder A, consisting of 12g of fly ash, 4g of self-cleaning powder CdS, and 24g of the first portion of glass powder, was added in four portions of 20g, 8g, 7g, and 5g. The prepared slurry was then milled in a planetary ball mill at 600r / min for 7 hours. Meanwhile, 1.4g of polyethylene glycol dispersant and 1.5g of epoxy resin were added to 10g of deionized water in a ball mill jar B at a mass-volume ratio to prepare a premix. At room temperature, mixed powder B, consisting of 8g of fly ash and 32g of the second portion of glass powder, was added in four portions of 20g, 8g, 7g, and 5g. The prepared slurry was then milled in a planetary ball mill at 600r / min for 8 hours.

[0059] Step 3: Add 0.4g of curing agent polyamide to the slurry after ball milling in ball mill A, and ball mill at 100r / min for 15-30 minutes to obtain mixed slurry a; add 0.4g of curing agent polyamide to the slurry after ball milling in ball mill B, and ball mill at 100r / min for 15-30 minutes to obtain mixed slurry b.

[0060] Step 4: After degassing the mixed slurry b under vacuum of -50KPa for 15 minutes, inject it into the mold and wait for 20 minutes until the surface is slightly solidified. Then, after degassing the ball-milled mixed slurry a under vacuum of -50KPa for 15 minutes, inject it into the mold to obtain a gel wet preform.

[0061] Step 5: Place the gel wet preform and the mold into a constant temperature and humidity chamber at 30°C to solidify and shape the preform.

[0062] Step 6: Place the cured green blank in a furnace and heat it to 600℃ at 2℃ / min and hold it for 3 hours to remove the glue. After cooling to room temperature in the furnace, place it in a furnace and heat it to 750℃ at 2℃ / min and hold it for 4 hours to sinter. After cooling to room temperature in the furnace, prepare epoxy resin integrated self-cleaning-photoluminescent ceramic.

[0063] The embodiments selected in the above materials are for ease of understanding and not for limiting the process method. Those skilled in the art can easily modify the process flow or transfer it to other cases without inventive change. If these modifications also fall under the category of similar claims or similar technology of this invention, then the intent of this invention also includes these modifications.

Claims

1. A method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin, characterized in that, The specific steps are as follows: Step 1: According to the mass ratio, take 40-120 parts of photoluminescent powder, 20-40 parts of self-cleaning powder, 80-200 parts of fly ash, 240-340 parts of the first batch of glass powder, and 200-320 parts of the second batch of glass powder; The photoluminescent powder is a photoluminescent powder with photocatalytic storage capacity, which is prepared by doping with rare earth long-afterglow materials and rare earth activators; The self-cleaning powder is a self-cleaning powder with photocatalytic capabilities, specifically metal oxides and / or metal sulfides; The glass powder is the matrix material, and the fly ash and glass powder constitute solid waste powder. Fly ash is solid waste discharged from coal-fired power generation; The glass powder is composed of SiO2, and the rare earth doped long-afterglow material is Sr4Al. 14 O 25 One or more of SrAl2O4 and CaAl2O4, with Nd as the rare earth activator. 3+ Dy3 + Eu 2+ One or more of the following, wherein the metal oxide is TiO2 and / or ZnO, and the metal sulfide is ZnS and / or CdS; Step 2: In ball mill jar A, add 6-14 parts of dispersant and 15-35 parts of epoxy resin to 100 parts of deionized water according to the mass-volume ratio to prepare a premix. Add phosphorescent powder, self-cleaning powder, and the first part of glass powder at room temperature, and ball mill for 6-8 hours. In ball mill jar B, add 6-14 parts of dispersant and 15-35 parts of epoxy resin to 100 parts of deionized water according to the mass-volume ratio to prepare a premix. Add fly ash and the second part of glass powder at room temperature, and ball mill for 6-8 hours. The epoxy resin is a green and non-toxic epoxy resin molding system. The dispersant is one or more of ammonium polyacrylate, ammonium citrate, and polyethylene glycol. Step 3: Add 2-4 parts of curing agent to the slurry after ball milling in ball mill A, and ball mill again for 15-30 minutes to obtain mixed slurry a. Add 2-4 parts of curing agent to the slurry after ball milling in ball mill B, and ball mill again for 15-30 minutes to obtain mixed slurry b. The curing agent is one or more of polyethyleneimine, cashew phenol modified amine, and polyamide. Step 4: After vacuum degassing the mixed slurry b, inject it into the mold. Wait for the substrate surface to solidify for 20-60 minutes. After the surface has slightly solidified, vacuum degas the ball-milled mixed slurry a and inject it into the mold to obtain a gel wet preform. Step 5: Place the gel wet preform and the mold into a constant temperature and humidity chamber for curing to obtain the raw preform; Step 6: After the cured green body is placed in the furnace to remove the adhesive, it is sintered to obtain epoxy resin and prepare solid waste integrated self-cleaning-photoluminescent ceramic.

2. The method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin according to claim 1, characterized in that: In the second step, epoxy resin is dissolved in deionized water to prepare a solution with a concentration of 10%~25%, and then a dispersant is added to prepare a premixed solution; in the second step, the ball milling speed is 500-600 r / min.

3. The method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin according to claim 1, characterized in that: The ball milling speed in the third step is 100-200 r / min.

4. The method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin according to claim 1, characterized in that: In the fourth step, the vacuum degree for vacuum degassing is -50Kpa to -90Kpa, and the vacuum degassing time is 15min.

5. The method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin according to claim 1, characterized in that: The curing process in the fifth step involves placing the gel wet blank and the mold in a constant temperature and humidity chamber, with the temperature maintained at 20℃~30℃.

6. The method for preparing integrated solid waste self-cleaning-photoluminescent ceramics using epoxy resin according to claim 1, characterized in that: The sixth step of debinding specifically involves heating to 600℃~700℃ at a rate of 0.5~2℃ / min at room temperature, holding at that temperature for 1~3 hours, and then cooling to room temperature with the furnace. The sintering specifically involves heating to 750℃~800℃ at a rate of 1℃~2℃ / min at room temperature, holding at that temperature for 2~4 hours, and then cooling to room temperature with the furnace.

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