CN110898781A - Photocatalytic reaction tank based on up-conversion material - Google Patents
Photocatalytic reaction tank based on up-conversion material Download PDFInfo
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- CN110898781A CN110898781A CN201911249670.6A CN201911249670A CN110898781A CN 110898781 A CN110898781 A CN 110898781A CN 201911249670 A CN201911249670 A CN 201911249670A CN 110898781 A CN110898781 A CN 110898781A
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- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
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Abstract
The invention relates to the technical field of photocatalytic reaction devices, and provides a photocatalytic reaction tank based on an up-conversion material, which comprises a tank wall and a reaction tank surrounded by the tank wall; the pool wall comprises an outer layer pool wall and an inner layer pool wall; an interlayer is arranged between the outer layer pool wall and the inner layer pool wall; the interlayer is filled with an upconverting material. According to the invention, the interlayer of the wall of the reaction tank is filled with the up-conversion material which can generate visible light under the excitation of infrared light, so that more available light sources are provided for the photocatalyst, and the photocatalytic efficiency is improved; in addition, part of ultraviolet light can not be completely absorbed by the catalyst in the photocatalysis process and directly passes through the reaction device, and the conversion material in the interlayer of the reaction tank can just absorb part of ultraviolet light passing through the reaction device and convert the ultraviolet light into visible light, so that the photocatalysis efficiency is further improved, and the influence of the ultraviolet light passing through the reaction device on the health of experiment workers can be prevented.
Description
Technical Field
The invention relates to the technical field of photocatalytic reaction devices, in particular to a photocatalytic reaction tank based on an up-conversion material.
Background
The photocatalysis technology refers to the photocatalysis material which is driven by solar energy to catalyze and degrade organic pollutants, reduce heavy metal ions and decompose water to prepare hydrogen, and is regarded as a green technology which fundamentally solves the problems of environmental pollution and energy shortage. Most of the photocatalyst can be excited to carry out photocatalytic reaction only under ultraviolet light and partial visible light, the sum of the ultraviolet light and the visible light in sunlight only accounts for 50% of the sunlight, and in addition, 50% of infrared light does not respond to the photocatalytic material, so that the catalyst can only utilize partial sunlight to carry out photocatalytic reaction.
At present, in the research of photocatalytic reaction experiments, a simulated sunlight (xenon light) lamp is used as a light source, most of adopted reaction devices are beakers, and during the experiments, a part of ultraviolet light can not irradiate on a photocatalyst and directly penetrates through the beakers, so that the photocatalytic efficiency is difficult to improve due to the reasons.
Disclosure of Invention
In view of the above, the present invention aims to provide a photocatalytic reaction cell based on an up-conversion material. The photocatalytic reaction tank provided by the invention has the advantages that the interlayer of the tank wall is filled with the up-conversion material, and the photocatalytic reaction tank is used for photocatalytic reaction, so that the photocatalytic efficiency can be improved, and the influence of ultraviolet rays penetrating through a reaction device on the health of experiment workers can be prevented.
In order to achieve the above object, the present invention provides the following technical solutions:
a photocatalytic reaction tank based on an up-conversion material comprises a tank wall and a reaction tank enclosed by the tank wall; the pool wall comprises an outer layer pool wall and an inner layer pool wall; an interlayer is arranged between the outer layer pool wall and the inner layer pool wall; the interlayer is filled with an up-conversion material; the up-conversion material is a material capable of generating visible light under the excitation of infrared light and/or ultraviolet light.
Preferably, the outer layer and the inner layer of the photocatalytic reaction tank are of an integral structure.
Preferably, the outer layer pool wall of the reaction pool is provided with an up-conversion material inlet and an up-conversion material outlet.
Preferably, rubber plugs are arranged at the up-conversion material injection port and the up-conversion material output port.
Preferably, the outer layer tank wall and the inner layer tank wall are both made of quartz glass.
Preferably, the thickness of the outer layer pool wall and the thickness of the inner layer pool wall are 0.1-0.4 mm independently.
Preferably, the thickness of the interlayer is 0.3-0.6 mm.
Preferably, the reaction tank has a regular or irregular three-dimensional shape.
Preferably, the reaction tank is in the shape of a cylinder, a truncated cone, a cube or a cuboid.
Preferably, the upconverting material is a carbon quantum dot.
The invention provides a photocatalytic reaction tank based on an up-conversion material, which comprises a tank wall and a reaction tank surrounded by the tank wall; the pool wall comprises an outer layer pool wall and an inner layer pool wall; an interlayer is arranged between the outer layer pool wall and the inner layer pool wall; the interlayer is filled with an upconverting material. According to the invention, the interlayer of the wall of the reaction tank is filled with the up-conversion material which can generate visible light under the excitation of infrared light, so that more available light sources are provided for the photocatalyst, and the photocatalytic efficiency is improved; in addition, part of ultraviolet light can not be completely absorbed by the catalyst in the photocatalysis process and directly passes through the reaction device, and the conversion material in the interlayer of the reaction tank can just absorb part of ultraviolet light passing through the reaction device and convert the ultraviolet light into visible light, so that the photocatalysis efficiency is further improved, and the influence of the ultraviolet light passing through the reaction device on the health of experiment workers can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of a photocatalytic reaction cell in an embodiment of the present invention, in which 1 is a rubber plug, 2 is an inlet for an upconverting material, 3 is an interlayer, 4 is an outer cell wall, 5 is an output port for the upconverting material, 6 is a reaction tank, and 7 is an inner cell wall;
FIG. 2 is a fluorescence spectrum generated by carbon quantum dots excited by ultraviolet light of 300 nm-350 nm;
FIG. 3 shows fluorescence spectra of carbon quantum dots excited by infrared light of 760nm to 900 nm.
Detailed Description
The invention provides a photocatalytic reaction tank based on an up-conversion material, which comprises a tank wall and a reaction tank surrounded by the tank wall; the pool wall comprises an outer layer pool wall and an inner layer pool wall; an interlayer is arranged between the outer layer pool wall and the inner layer pool wall; the interlayer is filled with an upconverting material.
In the invention, the outer layer and the inner layer of the photocatalytic reaction tank are preferably of an integrated structure, the outer layer tank wall of the reaction tank is preferably provided with an up-conversion material injection port and an up-conversion material output port, namely, the inner layer tank wall and the outer layer tank wall are mutually connected, and except the up-conversion material injection port and the up-conversion material output port, the rest parts are of sealing structures.
In the invention, the up-conversion material injection port is preferably arranged at the top end of the outer layer tank wall, and the up-conversion material output port is preferably arranged at the bottom of the outer layer tank wall; rubber plugs are preferably arranged at the up-conversion material injection port and the up-conversion material output port.
In the invention, the outer layer tank wall and the inner layer tank wall are both preferably made of quartz glass; the thickness of the outer layer pool wall and the thickness of the inner layer pool wall are preferably 0.1-0.4 mm independently, and more preferably 0.2-0.3 mm; the thickness of the interlayer is preferably 0.3-0.6 mm, and more preferably 0.4-0.5 mm.
In the present invention, the shape of the reaction tank is preferably a regular or irregular three-dimensional shape; more preferably cylindrical, truncated cone, cube or cuboid; the shape of the reaction tank is determined by the inner layer tank wall, in the specific embodiment of the invention, the shapes of the inner layer tank wall and the outer layer tank wall can be the same or different, and no special requirement exists as long as the outer layer and the inner layer can form an interlayer with a certain thickness; in a specific embodiment of the present invention, the structure of the photocatalytic reaction cell is preferably as shown in fig. 1, wherein 1 is a rubber plug, 2 is an inlet for an upconversion material, 3 is an interlayer, 4 is an outer-layer cell wall, 5 is an outlet for the upconversion material, 6 is a reaction tank, and 7 is an inner-layer cell wall; in FIG. 1, the inner wall is a truncated cone with a large top and a small bottom, the outer wall and the inner wall are substantially similar in shape and have a radius slightly larger than that of the inner wall, so as to form an interlayer, and a circle of protrusions are arranged at the top end and the bottom end of the outer wall, so as to facilitate taking of the reaction tank.
In the present invention, the upconversion material is a material capable of generating visible light under excitation of infrared light and/or ultraviolet light, and more preferably, carbon quantum dots. In the invention, the up-conversion material can generate visible light under the excitation of infrared light, and the visible light can further provide an available light source for the catalyst to carry out photocatalytic reaction, thereby solving the problem that most of photocatalyst materials can only be excited under the conditions of ultraviolet light and partial visible light, and the sunlight contains 50% of infrared light and has no response to the photocatalytic material; in addition, the up-conversion material can convert the self-ultraviolet light which is not absorbed in the reaction tank but passes through the tank wall of the reaction tank into visible light, so that the photocatalysis efficiency is further improved, and the influence of the ultraviolet light on the health of a human body caused by the ultraviolet light passing through the tank wall of the reaction tank is avoided.
The application method of the photocatalytic reaction tank has no special requirements, and the photocatalyst and the reaction raw materials are placed in the reaction tank and are irradiated by light for reaction.
The embodiments of the present invention will be described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
Example 1
In this embodiment, the upconversion material is a carbon quantum dot, the excitation wavelength is ultraviolet light and infrared light, and the visible light region is light between 400nm and 760 nm.
A photocatalysis reaction tank based on an up-conversion material is shown in figure 1, the main structure of the photocatalysis reaction tank is formed by casting quartz glass and comprises an inner layer and an outer layer (namely an inner layer tank wall 7 and an outer layer tank wall 4), wherein a rubber plug 1 can seal an up-conversion material output port 2 and an up-conversion material injection port 5 on the reaction tank, and carbon quantum dots are injected into the up-conversion material injection portA reaction tank interlayer 3, a photocatalytic experiment is carried out in a reaction tank 6, wherein the photocatalyst is Bi2O3The reaction raw material is acid orange 7(AO7), and a xenon lamp is used for irradiating right above the photocatalytic reaction tank, wherein the light intensity is 300W, and the illumination time is 2 h.
FIG. 2 is a fluorescence spectrum generated by carbon quantum dots excited by ultraviolet light of 300 nm-350 nm, and it can be seen that the fluorescence generated by the carbon quantum dots excited appears between 400 nm-600 nm, and the light in the area can excite most of the photocatalyst to perform photocatalytic reaction; the carbon quantum dots can generate visible light under the excitation of ultraviolet light, so that the visible light which can be utilized by the photocatalyst is enhanced, and the photocatalytic efficiency is improved.
Fig. 3 shows a fluorescence spectrum generated by the carbon quantum dots excited by infrared light of 760nm to 900nm, and it can be seen that the up-conversion fluorescence of the carbon quantum dots is between 400nm to 650nm, and the light in this region can excite most of the photocatalysts to react, which proves that the up-conversion material can convert most of the infrared light into visible light which can be absorbed by the photocatalysts, thereby providing the utilization rate of sunlight and further enhancing the catalytic efficiency of the catalysts.
The embodiment shows that the photocatalytic reaction tank provided by the invention can provide more light sources with available wavelengths for the photocatalyst to carry out photocatalytic reaction, solves the problem that most of photocatalytic materials can only be excited under the conditions of ultraviolet light and partial visible light, and infrared light in sunlight does not respond to the photocatalytic materials, and can improve the efficiency of the photocatalytic reaction.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A photocatalytic reaction tank based on an up-conversion material is characterized by comprising a tank wall and a reaction tank enclosed by the tank wall; the pool wall comprises an outer layer pool wall and an inner layer pool wall; an interlayer is arranged between the outer layer pool wall and the inner layer pool wall; the interlayer is filled with an up-conversion material; the up-conversion material is a material capable of generating visible light under the excitation of infrared light and/or ultraviolet light.
2. The photocatalytic reaction cell according to claim 1, wherein the outer layer and the inner layer of the photocatalytic reaction cell are of an integral structure.
3. The photocatalytic reaction cell according to claim 1, characterized in that the outer cell wall of the reaction cell is provided with an upconverting material inlet and an upconverting material outlet.
4. The photocatalytic reaction cell according to claim 3, wherein rubber plugs are provided at the upconverting material injection port and the upconverting material output port.
5. The photocatalytic reaction cell of claim 1, wherein the outer cell wall and the inner cell wall are made of quartz glass.
6. The photocatalytic reaction cell according to claim 1 or 5, characterized in that the thickness of the outer layer cell wall and the inner layer cell wall is independently 0.1 to 0.4 mm.
7. The photocatalytic reaction cell according to claim 1 or 5, wherein the thickness of the interlayer is 0.3 to 0.6 mm.
8. The photocatalytic reaction cell according to claim 1, wherein the reaction tank has a regular or irregular three-dimensional shape.
9. The photocatalytic reaction tank as set forth in claim 1 or 8, wherein the reaction tank has a shape of a cylinder, a truncated cone, a cube or a rectangular parallelepiped.
10. The photocatalytic reaction cell of claim 1, wherein the up-conversion material is a carbon quantum dot.
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| CN201911249670.6A CN110898781B (en) | 2019-12-09 | 2019-12-09 | Photocatalytic reaction tank based on up-conversion material |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234325A (en) * | 2008-02-29 | 2008-08-06 | 上海大学 | Photo-catalytic reactor |
| CN103553993A (en) * | 2013-11-12 | 2014-02-05 | 中国科学院理化技术研究所 | Method for synthesizing resinous vitamin D3 by using micro-flow photoreaction technology and micro-flow photochemical reactor |
| CN104117375A (en) * | 2014-06-18 | 2014-10-29 | 南京大学 | Preparation method of synthesized carbon quantum dot-carbon nitrogen macromolecule composite infrared light catalyst |
| CN204429268U (en) * | 2015-01-13 | 2015-07-01 | 韩希璇 | A kind of reactor of photocatalytic hydrogen production by water decomposition |
| CN205042465U (en) * | 2015-10-21 | 2016-02-24 | 湖北洛克泰克仪器有限公司 | Reactor of light catalytic decomposition water |
| CN106423216A (en) * | 2016-08-24 | 2017-02-22 | 江苏大学 | Preparation method of carbon quantum dot CQDs hybridized CdIn2S4 composite material and application thereof |
| CN205995272U (en) * | 2016-08-26 | 2017-03-08 | 厦门市净屋环保科技有限公司 | A kind of reaction tank for light-catalyzed reaction |
| CN107892354A (en) * | 2017-09-30 | 2018-04-10 | 天津大学 | A kind of device and method of photocatalytic degradation of dye waste water |
| CN108585108A (en) * | 2018-05-11 | 2018-09-28 | 南京工业大学 | A kind of device of photocatalysis treatment arsenic-containing waste water |
| CN208814726U (en) * | 2018-07-19 | 2019-05-03 | 苏州方舟环保科技有限公司 | A kind of turbine negative pressure oxidation treatment device |
| CN110237834A (en) * | 2019-07-10 | 2019-09-17 | 中国科学院地球环境研究所 | A kind of preparation method of carbon quantum dot/zinc oxide visible-light-inducephotocatalyst photocatalyst |
-
2019
- 2019-12-09 CN CN201911249670.6A patent/CN110898781B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234325A (en) * | 2008-02-29 | 2008-08-06 | 上海大学 | Photo-catalytic reactor |
| CN103553993A (en) * | 2013-11-12 | 2014-02-05 | 中国科学院理化技术研究所 | Method for synthesizing resinous vitamin D3 by using micro-flow photoreaction technology and micro-flow photochemical reactor |
| CN104117375A (en) * | 2014-06-18 | 2014-10-29 | 南京大学 | Preparation method of synthesized carbon quantum dot-carbon nitrogen macromolecule composite infrared light catalyst |
| CN204429268U (en) * | 2015-01-13 | 2015-07-01 | 韩希璇 | A kind of reactor of photocatalytic hydrogen production by water decomposition |
| CN205042465U (en) * | 2015-10-21 | 2016-02-24 | 湖北洛克泰克仪器有限公司 | Reactor of light catalytic decomposition water |
| CN106423216A (en) * | 2016-08-24 | 2017-02-22 | 江苏大学 | Preparation method of carbon quantum dot CQDs hybridized CdIn2S4 composite material and application thereof |
| CN205995272U (en) * | 2016-08-26 | 2017-03-08 | 厦门市净屋环保科技有限公司 | A kind of reaction tank for light-catalyzed reaction |
| CN107892354A (en) * | 2017-09-30 | 2018-04-10 | 天津大学 | A kind of device and method of photocatalytic degradation of dye waste water |
| CN108585108A (en) * | 2018-05-11 | 2018-09-28 | 南京工业大学 | A kind of device of photocatalysis treatment arsenic-containing waste water |
| CN208814726U (en) * | 2018-07-19 | 2019-05-03 | 苏州方舟环保科技有限公司 | A kind of turbine negative pressure oxidation treatment device |
| CN110237834A (en) * | 2019-07-10 | 2019-09-17 | 中国科学院地球环境研究所 | A kind of preparation method of carbon quantum dot/zinc oxide visible-light-inducephotocatalyst photocatalyst |
Non-Patent Citations (3)
| Title |
|---|
| YUXIANG YAN等: "Direct Z-scheme CaTiO3@BiOBr composite photocatalysts", 《ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH》 * |
| 姚仲鹏: "《空气净化原理、设计与应用》", 30 September 2014, 中国科学技术出版社 * |
| 朱天乐: "《微环境空气质量控制》", 31 May 2006, 北京航空航天大学出版社 * |
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