CN213611414U - Novel photocatalytic graphene composite microcrystalline glass panel - Google Patents
Novel photocatalytic graphene composite microcrystalline glass panel Download PDFInfo
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- CN213611414U CN213611414U CN202021577882.5U CN202021577882U CN213611414U CN 213611414 U CN213611414 U CN 213611414U CN 202021577882 U CN202021577882 U CN 202021577882U CN 213611414 U CN213611414 U CN 213611414U
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Abstract
The utility model provides a novel compound microcrystalline glass panel of photocatalysis graphite alkene, including microcrystalline glass basement, titanium sharp ore layer and graphite alkene layer, its characterized in that: the microcrystalline glass substrate is flat, a plurality of hollow cylindrical through holes are uniformly formed in the flat substrate in a rectangular array mode, the inner side of each through hole is a cylindrical titanium anatase layer, and graphene layers are filled in the cylindrical titanium anatase layers. The utility model discloses simple structure, can realize efficient electron transmission, service cycle length, low cost, the practicality is strong.
Description
Technical Field
The invention belongs to the field of environmental purification, and particularly relates to a novel photocatalytic graphene composite microcrystalline glass panel.
Background
PhotocatalysisThe principle is based on the oxidation-reduction capability of the photocatalyst under the condition of illumination, so that the aims of purifying pollutants, synthesizing and converting substances and the like can be fulfilled. In general, a photocatalytic oxidation reaction uses a semiconductor as a catalyst and light as energy to degrade organic substances into carbon dioxide and water. Therefore, the photocatalysis technology is taken as an efficient and safe environment-friendly environmental purification technology, and the improvement of the indoor air quality is approved by the international academic community; the types of the photocatalysts are various, including a plurality of oxide sulfide semiconductors such as titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, cadmium sulfide and the like, and also including partial silver salts, porphyrins and the like, which also have catalytic effects, but all of the photocatalysts basically have a defect of loss, namely the photocatalysts are consumed before and after reaction, and most of the photocatalysts have certain toxicity to human bodies. Therefore, titanium dioxide is known as the most valuable photocatalytic material for 21 st century. But TiO 22The widespread use of photocatalysts also presents some problems: first, TiO2The band gap is 3.2eV, the band gap is wider, only ultraviolet light can be absorbed, and the utilization rate of natural light is not high; second, TiO2The semiconductor has a high recombination rate of photo-generated electron-hole pairs, but has low photocatalytic efficiency.
Cordierite has extremely low thermal expansion coefficient, thermal conductivity, dielectric constant and dielectric loss, excellent thermal shock resistance and stable chemical performance, and has better associativity and induced growth performance for crystal faces with small mismatching degree of the crystal faces of two-phase crystals in the report of the prior art; in addition, in some crystals, there is anisotropy, i.e., in different directions along the crystal lattice, and the periodicity and density of atomic arrangement are different, thereby causing the physicochemical properties of the crystals in different directions to be different. The anisotropy of the crystal is specifically shown in that the elastic modulus, hardness, fracture resistance, yield strength, thermal expansion coefficient, thermal conductivity, resistivity, electric displacement vector, electric polarization strength, magnetic susceptibility, refractive index and the like of the crystal are different in different directions, and the anisotropy has a quite important research value as an important characteristic of the crystal. The crystal orientation is often used to mark different orientations within a crystal.
In order to improve the photocatalytic effect in the photocatalytic structure design, a heterostructure is often selected to improve the catalytic effect; the method has the advantages that good results are obtained at present, but in the practical application of photocatalysis, a plurality of problems still exist, the single use of the photocatalyst sometimes cannot effectively utilize sunlight, the single use of some catalysts has short service life and is easy to inactivate, and the use of the catalysts does not need to be provided with a protective layer, so that certain base materials which are easy to degrade through photocatalysis are damaged.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model aims at providing a novel compound microcrystalline glass panel of photocatalysis graphite alkene has simple structure, can efficient electron transmission, advantage that the length of labour cycle is long, low cost.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a novel compound microcrystalline glass panel of photocatalysis graphite alkene, includes microcrystalline glass base, titanium anatase layer and graphite alkene layer, its characterized in that: the microcrystalline glass substrate is flat, a plurality of hollow cylindrical through holes are uniformly formed in the substrate in an array mode, the inner side of each through hole is a cylindrical titanium ore layer, and the graphene layer is filled in the cylindrical titanium ore layer.
The microcrystalline glass substrate is cordierite-based microcrystalline glass, and alpha-cordierite-based microcrystalline glass with a main crystal phase of <001> is prepared by crystallizing on the surface of a cordierite precursor glass body through a melting method.
The hole center distance of the cylindrical through holes is 50-100 nm.
The inner diameter of a cylindrical through hole formed in the microcrystalline glass substrate plate is 20-40 nm.
The titanium anatase layer is a titanium dioxide crystal with a space group of I41/amd, the titanium anatase layer is titanium anatase directly grown on a glass-ceramic substrate through a sol-gel method, and the titanium anatase completely exposes a (001) crystal face to efficiently improve the photocatalysis efficiency.
The inner diameter of the annular columnar titanium anatase layer is 10-20 nm.
The graphene layer is one of a uniform continuous graphene film or a graphene film in any pattern shape.
The graphene layer is cylindrical, the outer diameter of the graphene layer is matched with the inner diameter of the cylindrical titanium ore deposit, and the outer diameter of the graphene layer is 10-20 nm.
The utility model has the advantages of as follows:
the utility model discloses a sheathed tube structure to cordierite base microcrystalline glass after the crystal is analysed through the surface is the basement, this kind of cordierite microcrystalline glass's preparation not only does not need the crystal nucleus agent, and its main crystalline phase is <001> has exposed (001) crystal face on its ribbon is epaxial, this crystal face has very low mismatching degree with the (001) crystal face of the sharp ore deposit of titanium, the composite construction's of being convenient for formation and preparation, simultaneously because cordierite microcrystalline glass is ventilative impervious, and the functional characteristic of graphite alkene itself, itself to the material provides fine guard action, the utility model discloses composite panel's technical advantage lies in, not only very big shortening the band gap, promoted the migration of photoproduction electron and the separation in photoproduction hole moreover and promoted the photocatalysis effect, prolonged the life of material.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the structure of the present invention;
in the figure: 1-microcrystalline glass substrate, 2-titanium anatase layer and 3-graphene coating.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings, as shown in fig. 1, a novel photocatalytic graphene composite microcrystalline glass panel comprises a microcrystalline glass substrate, a ti-anatase layer and a graphene layer, wherein in the production and preparation process, firstly, cordierite-based microcrystalline glass subjected to surface crystallization is used as the substrate, the preparation of the cordierite microcrystalline glass does not require a crystal nucleus agent, and the main crystal phase of the cordierite microcrystalline glass is <001> with a (001) crystal face exposed on a ribbon axis thereof, and then the ti-anatase is subjected to any one of sol-gel methods to directly grow the ti-anatase layer in a circular hole in the microcrystalline glass substrate, so that a large number of ti-anatase crystals stacked along the (001) crystal face can be obtained due to the very low mismatching degree between the (001) crystal face of the ti-anatase and the (001) crystal face of the cordierite microcrystalline glass, finally, the graphene coating is added on the inner surface of the titanium anatase layer, so that a composite panel with better photocatalytic effect than the traditional titanium dioxide crystal can be obtained, the panel has excellent performance in the aspects of sound, light and electricity, the electron transmission efficiency is higher, the separation degree of photoproduction electrons and photoproduction holes is improved, the energy band gap is lower, and the photocatalytic reaction efficiency is also improved.
The scope of the present invention is not limited to the above-described embodiments, and it is apparent that those skilled in the art can make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (7)
1. The utility model provides a novel compound microcrystalline glass panel of photocatalysis graphite alkene, includes microcrystalline glass base, titanium anatase layer and graphite alkene layer, its characterized in that: the microcrystalline glass substrate is flat, a plurality of hollow cylindrical through holes are uniformly formed in the flat substrate in a rectangular array mode, the inner side of each through hole is a cylindrical titanium anatase layer, and graphene layers are filled in the cylindrical titanium anatase layers.
2. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the microcrystalline glass substrate is cordierite-based microcrystalline glass.
3. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the hole center distance of the cylindrical through holes is 50-100 nm.
4. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the inner diameter of a cylindrical through hole formed in the microcrystalline glass substrate plate is 20-40 nm.
5. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the titanium anatase layer is titanium dioxide crystal with space group I41/amd.
6. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the inner diameter of the annular columnar titanium anatase layer is 10-20 nm.
7. The novel photocatalytic graphene composite microcrystalline glass panel according to claim 1, wherein: the graphene layer is cylindrical, the outer diameter of the graphene layer is matched with the inner diameter of the cylindrical titanium ore deposit, and the outer diameter of the graphene layer is 10-20 nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021577882.5U CN213611414U (en) | 2020-08-03 | 2020-08-03 | Novel photocatalytic graphene composite microcrystalline glass panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368030A (en) * | 2022-08-30 | 2022-11-22 | 牛墨石墨烯应用科技有限公司 | Preparation method of graphene heat-conducting composite glass and graphene heat-conducting composite glass |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115368030A (en) * | 2022-08-30 | 2022-11-22 | 牛墨石墨烯应用科技有限公司 | Preparation method of graphene heat-conducting composite glass and graphene heat-conducting composite glass |
| CN115368030B (en) * | 2022-08-30 | 2024-02-02 | 牛墨石墨烯应用科技有限公司 | Preparation method of graphene heat-conducting composite glass and graphene heat-conducting composite glass |
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