CN203663825U - Light-catalyzed reaction experimental device - Google Patents
Light-catalyzed reaction experimental device Download PDFInfo
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- CN203663825U CN203663825U CN201320749729.XU CN201320749729U CN203663825U CN 203663825 U CN203663825 U CN 203663825U CN 201320749729 U CN201320749729 U CN 201320749729U CN 203663825 U CN203663825 U CN 203663825U
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Abstract
The utility model discloses a light-catalyzed reaction experimental device which comprises a base, a straight-bar rack, a magnetic stirring device, a photo-catalytic reactor, white light LED lights and a light-catalyzed reaction real-time measuring device, wherein the straight-bar rack is mounted in the center of the base; the white light LED lights are fixed on the straight-bar rack through a white light LED lamp bracket; the magnetic stirring device is mounted on the base; the photo-catalytic reactor is placed on the magnetic stirring device; the light-catalyzed reaction real-time measuring device consists of a light source, light transmitting optical fibers, optical multiplexers, a Y-shaped sensing optical fiber, an optical fiber sensing probe, an optical fiber spectrometer and a PC; the light source is connected with a first optical multiplexer through a light transmitting optical fiber; the first optical multiplexer is connected with the Y-shaped sensing optical fiber; one end of the Y-shaped sensing optical fiber is connected with the optical fiber sensing probe; the other end of the Y-shaped sensing optical fiber is connected to a second optical multiplexer; the second optical multiplexer is connected to the optical fiber spectrometer; the optical fiber spectrometer is connected to the PC. The experimental device can measure the concentration of a reactant in real time, and monitors the catalytic reaction process.
Description
Technical field
The utility model relates to a kind of light-catalyzed reaction experimental provision, belongs to photocatalysis apparatus field.
Background technology
Photocatalytic mechanism and application study have been extended to multiple fields such as photocatalysis treatment sewage, solid hydrogen fixed nitrogen, dye sensitization, solar cell and optical catalytic environment purification material from initial photocatalytic hydrogen production by water decomposition.At present, very active with design about the exploitation of the various photo catalysis reactors of different structure in the world, research contents is intended to promote light source utilization rate by structure optimization, and increasing catalytic reaction area, further promotes photocatalysis efficiency.For example, the patent No.: CN202265431U, patent name is for a kind of: the invention of " the water body photocatalyst of wing type structure " is by the Hydrodynamic cavitation effect of wing type structure generation, increases light-catalyzed reaction area, improves catalytic efficiency; Publication number: CN101239300A, patent name is: the invention of " a kind of photocatalytic component " is to wrap up excitation source by catalysing tube, improves light source utilization rate, and then promotes photocatalysis efficiency.But current most of reaction unit lacks real-time detection reaction substrate concentration, the device of monitoring catalytic reaction process.Traditional check light-catalyzed reaction effect is general adopts centrifugal sampling to detect by UV, visible light optical absorption spectra.In sampling and testing process, the error that exists is larger, and the time interval is long, and detection reaction process in real time.
Summary of the invention
In order to overcome above-mentioned prior art shortcoming, the purpose of this utility model is to provide a kind of light-catalyzed reaction experimental provision, with light-catalyzed reaction real-time measurement apparatus, can measure in real time reactant concentration, monitoring catalytic reaction process.
The technical scheme that the utility model adopts is: a kind of light-catalyzed reaction experimental provision, comprises base, straight-bar frame, magnetic stirring apparatus, photo catalysis reactor, white LED lamp and light-catalyzed reaction real-time measurement apparatus; Straight-bar frame is arranged on base centre position, and the first magnetic stirring apparatus and the second magnetic stirring apparatus lay respectively at straight-bar frame both sides, are placed on base; The first photo catalysis reactor is placed on the first magnetic stirring apparatus, and the second photo catalysis reactor is placed on the second magnetic stirring apparatus; Two identical white LED lamps are fixed on straight-bar frame by white light LEDs lamp bracket, lay respectively at the first photo catalysis reactor and the second photo catalysis reactor directly over; Light-catalyzed reaction real-time measurement apparatus is made up of light source, Optic transmission fiber, optically multiplexed device, Y type sensor fibre, optical fiber sensing probe, fiber spectrometer and PC; Light source connects the first optically multiplexed device by Optic transmission fiber, and the first optically multiplexed device connects a Y type sensor fibre and the 2nd Y type sensor fibre; The one Y type sensor fibre one end is connected to the first optical fiber sensing probe, and the other end is connected to the second optically multiplexed device; The 2nd Y type sensor fibre one end is connected to the second optical fiber sensing probe, and the other end is connected to the second optically multiplexed device; The second optically multiplexed device is connected to fiber spectrometer, and fiber spectrometer is connected to PC.
Described white LED lamp adopts great power LED, and uniform array is arranged.
Described white light LEDs lamp bracket is two parallel vertical bars, and spacing is the width of straight-bar frame, and on vertical bar, centre is provided with screwed hole, and screw knob and screwed hole are used in conjunction with.
Described white light LEDs lamp bracket can prolong straight-bar frame and move up and down, and regulates white LED lamp height.
Described magnetic stirring apparatus is constant temperature blender with magnetic force, temperature deviation ± 0.1 ℃.
Described photo catalysis reactor material is corrosion-resistant transparent material, and side is carved with graduation mark.
Described optical fiber sensing probe is corrosion resistance transmission-type or reflection type optical fiber sensing probe.
Beneficial effect of the present invention is:
1. adopt white LED lamp simulated solar irradiation, more energy-conservation than traditional solar simulator, cost-saving;
2. adopt light-catalyzed reaction real-time measurement apparatus, convenient light-catalyzed reaction substrate concentration information, the monitor optical catalytic reaction situation measured in real time;
3. adopt optical fiber sensing technology, facilitate telemeasurement and transfer of data;
4. adopt constant temperature blender with magnetic force, can conveniently study light-catalyzed reaction situation under condition of different temperatures.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the invention will be further described.
Fig. 1 is structural representation of the present invention;
In Fig. 1,1 is base, and 2 is straight-bar frame, 3 is the first magnetic stirring apparatus, 4 is the second magnetic stirring apparatus, and 5 is the first photo catalysis reactor, and 6 is the second photo catalysis reactor, 7 is white LED lamp, 8 is LED, and 9 is white light LEDs lamp bracket, and 10 is screw knob, 11 is light source, 12 is Optic transmission fiber, and 13 is the first optically multiplexed device, and 14 is a Y type sensor fibre, 15 is the 2nd Y type sensor fibre, 16 is the first optical fiber sensing probe, and 17 is the second optical fiber sensing probe, and 18 is the second optically multiplexed device, 19 is fiber spectrometer, and 20 is PC.
The specific embodiment
In Fig. 1, a kind of light-catalyzed reaction experimental provision, comprises base 1, straight-bar frame 2, magnetic stirring apparatus, photo catalysis reactor, white LED lamp 7 and light-catalyzed reaction real-time measurement apparatus.Straight-bar frame 2 is arranged on base 1 centre position, and the first magnetic stirring apparatus 3 and the second magnetic stirring apparatus 4 lay respectively at straight-bar frame 2 both sides, are placed on base 1, and two magnetic stirring apparatus are constant temperature blender with magnetic force, temperature deviation ± 0.1 ℃.The first photo catalysis reactor 5 is placed on the first magnetic stirring apparatus 3, and the second photo catalysis reactor 6 is placed on the second magnetic stirring apparatus 4, and two photo catalysis reactor materials are corrosion-resistant transparent material, and side is carved with graduation mark.White LED lamp 7 adopts great power LED 8, and uniform array is arranged.White light LEDs lamp bracket 9 is two parallel vertical bars, spacing is the width of straight-bar frame 2, in the middle of on vertical bar, be provided with screwed hole, screw knob 10 is used in conjunction with screwed hole, two identical white LED lamps 7 are set up by white light LEDs lamp bracket 9, adopt screw knob 10 be tightened on straight-bar frame 2, and lay respectively at the first photo catalysis reactor 5 and the second photo catalysis reactor 6 directly over.Light-catalyzed reaction real-time measurement apparatus is made up of light source 11, Optic transmission fiber 12, optically multiplexed device, Y type sensor fibre, optical fiber sensing probe, fiber spectrometer 19 and PC 20; Light source 11 connects the optically multiplexed device 13 of the first optically multiplexed device 13, the first by Optic transmission fiber 12 and connects a Y type sensor fibre 14 and the 2nd Y type sensor fibre 15; The one Y type sensor fibre 14 one end are connected to the first optical fiber sensing probe 16, and the other end is connected to the second optically multiplexed device 18; The 2nd Y type sensor fibre 15 one end are connected to the second optical fiber sensing probe 17, and the other end is connected to the second optically multiplexed device 18; The second optically multiplexed device 18 is connected to fiber spectrometer 19, and fiber spectrometer 19 is connected to PC 20.
Operation principle of the present invention is:
When white LED lamp sends energy equivalence in the time that the illumination of semiconductor energy gap is mapped in photocatalyst surface, the electronics of meeting exciting light catalyst transits to conduction band from valence band, formation has very strong active hole-duplet, can have effectively organic dyestuff is carried out to redox reaction, reduce the organic concentration of solution, the variation of concentration can cause that the spectral absorbance of solution changes, utilize transmission-type or reflection type optical fiber sensing probe by spectral absorption communication to fiber spectrometer, change through optoelectronic information, and transfer to PC spectrum test software and show in real time.
Embodiment: pure TiO
2with doped Ti O
2light-catalyzed reaction experiment
A kind of light-catalyzed reaction experimental provision, comprises base 1, straight-bar frame 2, magnetic stirring apparatus, photo catalysis reactor, white LED lamp 7 and light-catalyzed reaction real-time measurement apparatus.Straight-bar frame 2 is arranged on base 1 centre position, and the first magnetic stirring apparatus 3 and the second magnetic stirring apparatus 4 lay respectively at straight-bar frame 2 both sides, are placed on base 1, and two magnetic stirring apparatus are constant temperature blender with magnetic force, temperature deviation ± 0.1 ℃.The first photo catalysis reactor 5 is placed on the first magnetic stirring apparatus 3, and the second photo catalysis reactor 6 is placed on the second magnetic stirring apparatus 4, and two photo catalysis reactor materials are corrosion-resistant transparent material, and side is carved with graduation mark.By the first photo catalysis reactor 5 and the second photo catalysis reactor 6 splendid attire same volumes and same concentrations treat catalytic treatment solution, in the first photo catalysis reactor 5, add pure TiO
2, add the doped Ti O of equal in quality at the second photo catalysis reactor 6
2.
Open light-catalyzed reaction real-time measurement apparatus: this device is made up of light source 11, Optic transmission fiber 12, optically multiplexed device, Y type sensor fibre, optical fiber sensing probe, fiber spectrometer 19 and PC 20; Light source 11 connects the optically multiplexed device 13 of the first optically multiplexed device 13, the first by Optic transmission fiber 12 and connects a Y type sensor fibre 14 and the 2nd Y type sensor fibre 15; The one Y type sensor fibre 14 one end are connected to the first optical fiber sensing probe 16, and the other end is connected to the second optically multiplexed device 18; The 2nd Y type sensor fibre 15 one end are connected to the second optical fiber sensing probe 17, and the other end is connected to the second optically multiplexed device 18; The second optically multiplexed device 18 is connected to fiber spectrometer 19, and fiber spectrometer 19 is connected to PC 20, and PC spectrum test software detection is to treating catalytic treatment solution spectrum information.
Install and regulate 7: two identical white LED lamps 7 of white LED lamp to be set up by white light LEDs lamp bracket 9, white light LEDs lamp bracket 9 is two parallel vertical bars, and spacing is the width of straight-bar frame 2, the middle screwed hole that is provided with on vertical bar, and screw knob 10 is used in conjunction with screwed hole.Move up and down white light LEDs lamp bracket 9, two identical white LED lamps 7 are adjusted to requirement of experiment height, screw screw knob 10 and can fix two identical white LED lamps 7 directly over the first photo catalysis reactor 5 and the second photo catalysis reactor 6.
After two identical white LED lamps 7 are opened, the pure TiO in the first photo catalysis reactor 5
2doped Ti O with the second photo catalysis reactor 6
2absorb after light, produce strong active hole-duplet, hole-duplet with treat that catalytic treatment solution carries out redox reaction, treat that catalytic treatment solution concentration reduces, light-catalyzed reaction real-time measurement apparatus will treat in the first photo catalysis reactor 5 and the second photo catalysis reactor 6 that catalytic treatment solution concentration information stores demonstration respectively, relatively processes for follow-up.
According to requirement of experiment, can set the temperature of two constant temperature blender with magnetic force, can regulate the illuminator level of two identical white LED lamps 7, the experiment such as solution that can change different attribute variable concentrations regulates carries out photocatalysis experiment.
Above-mentioned a kind of light-catalyzed reaction experimental provision mainly illustrates this device formation, structure and principle, and embodiment is with conventional photochemical catalyst TiO
2for example; light-catalyzed reaction experimental provision of the present invention is equally applicable to the light-catalyzed reaction experiment of other photochemical catalysts to solution; simultaneously how many according to tested sample, this device size, photo catalysis reactor can do increases the adjustment reducing, and all belongs to the protection domain of this invention.
Claims (7)
1. a light-catalyzed reaction experimental provision, comprises base, straight-bar frame, magnetic stirring apparatus, photo catalysis reactor, white LED lamp and light-catalyzed reaction real-time measurement apparatus; Straight-bar frame is arranged on base centre position, and the first magnetic stirring apparatus and the second magnetic stirring apparatus lay respectively at straight-bar frame both sides, are placed on base; The first photo catalysis reactor is placed on the first magnetic stirring apparatus, and the second photo catalysis reactor is placed on the second magnetic stirring apparatus; It is characterized in that, two identical white LED lamps are fixed on straight-bar frame by white light LEDs lamp bracket, lay respectively at the first photo catalysis reactor and the second photo catalysis reactor directly over; Described light-catalyzed reaction real-time measurement apparatus is made up of light source, Optic transmission fiber, optically multiplexed device, Y type sensor fibre, optical fiber sensing probe, fiber spectrometer and PC; Light source connects the first optically multiplexed device by Optic transmission fiber, and the first optically multiplexed device connects a Y type sensor fibre and the 2nd Y type sensor fibre; The one Y type sensor fibre one end is connected to the first optical fiber sensing probe, and the other end is connected to the second optically multiplexed device; The 2nd Y type sensor fibre one end is connected to the second optical fiber sensing probe, and the other end is connected to the second optically multiplexed device; The second optically multiplexed device is connected to fiber spectrometer, and fiber spectrometer is connected to PC.
2. a kind of light-catalyzed reaction experimental provision according to claim 1, is characterized in that, described white LED lamp adopts great power LED, and uniform array is arranged.
3. a kind of light-catalyzed reaction experimental provision according to claim 1, is characterized in that, described white light LEDs lamp bracket is two parallel vertical bars, and spacing is the width of straight-bar frame, and on vertical bar, centre is provided with screwed hole, and screw knob and screwed hole are used in conjunction with.
4. a kind of light-catalyzed reaction experimental provision according to claim 3, is characterized in that, described white light LEDs lamp bracket can prolong straight-bar frame and move up and down, and regulates white LED lamp height.
5. a kind of light-catalyzed reaction experimental provision according to claim 1, is characterized in that, described magnetic stirring apparatus is constant temperature blender with magnetic force, temperature deviation ± 0.1 ℃.
6. a kind of light-catalyzed reaction experimental provision according to claim 1, is characterized in that, described photo catalysis reactor material is corrosion-resistant transparent material, and side is carved with graduation mark.
7. a kind of light-catalyzed reaction experimental provision according to claim 1, is characterized in that, described optical fiber sensing probe is corrosion resistance transmission-type or reflection type optical fiber sensing probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749729.XU CN203663825U (en) | 2013-11-21 | 2013-11-21 | Light-catalyzed reaction experimental device |
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|---|---|---|---|
| CN201320749729.XU CN203663825U (en) | 2013-11-21 | 2013-11-21 | Light-catalyzed reaction experimental device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566858A (en) * | 2013-11-21 | 2014-02-12 | 中国计量学院 | Photocatalytic reaction experiment device |
| CN105664817A (en) * | 2016-03-14 | 2016-06-15 | 中国神华能源股份有限公司 | Optical fiber type photo-catalytic reactor and method for converting CO2 into methyl alcohol |
| CN106053436A (en) * | 2016-05-13 | 2016-10-26 | 东南大学 | Liquid phase photocatalysis test device |
| CN109387495A (en) * | 2018-10-09 | 2019-02-26 | 东北大学秦皇岛分校 | A kind of double light source photocatalytic reaction devices |
-
2013
- 2013-11-21 CN CN201320749729.XU patent/CN203663825U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566858A (en) * | 2013-11-21 | 2014-02-12 | 中国计量学院 | Photocatalytic reaction experiment device |
| CN105664817A (en) * | 2016-03-14 | 2016-06-15 | 中国神华能源股份有限公司 | Optical fiber type photo-catalytic reactor and method for converting CO2 into methyl alcohol |
| CN106053436A (en) * | 2016-05-13 | 2016-10-26 | 东南大学 | Liquid phase photocatalysis test device |
| CN109387495A (en) * | 2018-10-09 | 2019-02-26 | 东北大学秦皇岛分校 | A kind of double light source photocatalytic reaction devices |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141121 |
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| EXPY | Termination of patent right or utility model |