Photochemical Reactor
One: Introduction of QFN Brand Photochemical Reactor:
The QF-GHX series photochemical reaction instrument was successfully developed under the technical support of many professors at Shanghai Jiaotong University and East China University of Technology. It is mainly used to study gas or liquid media, fixed or flowing systems, ultraviolet light or simulated visible light, and reactions Whether the container is loaded with TiO2 photocatalyst and other photochemical reactions. It has the functions of providing samples for analyzing reaction products and free radicals, measuring reaction kinetic constants, measuring quantum yield, etc. It is widely used in research fields such as chemical synthesis, environmental protection and life sciences.
According to different configurations, photochemical reactors, also called photocatalytic reactors, photohydrolysis hydrogen production system, Shanghai Qiaofeng Industrial Co., Ltd. are divided into five basic types and one full-function photochemical reactor.
Two: Application field description of photochemical reactor:
The photochemical reaction instrument is mainly used to study the photochemical reaction under the conditions of gas or liquid medium, fixed or flowing system, ultraviolet light or simulated visible light, and whether the reaction vessel is loaded with TiO2 photocatalyst. It has the functions of providing samples for analyzing reaction products and free radicals, measuring reaction kinetic constants, measuring quantum yield, etc. It is widely used in research fields such as chemical synthesis, environmental protection and life sciences.
Three: Description of the main features of the photochemical reactor:
1 Microcomputer controller with continuously adjustable power.
2 The controller is equipped with an ammeter and a voltmeter to facilitate the observation of current and voltage changes.
3 There is a microcomputer timer, which can be timed in steps.
4 Internal illumination light source, fully received light.
5 Equipped with eight-bit magnetic stirring device to make the sample fully mixed and receive light.
6 There are 2 special sockets on the left side of the box for the lamp source and the plug of the stirring reactor.
7 Equipped with a removable cart, easy to move or fix.
8QF-GHX-IV type is suitable for the processing of small batch samples.
Four: Description of main technical parameters of photochemical reactor:
★ The power of the light source can be adjusted continuously.
★ QFN integrated light source controller can be used for mercury, xenon, metal halide and other light sources.
★ Mercury lamp power adjustment range: 100 ~ 1000W can be adjusted continuously.
★ Xenon lamp power adjustment range: 100 ~ 1000W can be adjusted continuously.
★ Metal halide lamp power adjustment range: 100 ~ 450W can be adjusted continuously.
★ Quartz test tube specifications: 30ml, 50ml (or customized).
★ Can handle 8 samples (or customized) at the same time.
★ Eight-bit magnetic stirring device can synchronously adjust the stirring speed of 8 samples.
Five: QFN photochemical reactor configuration instructions:
Cold water circulation device: QFN-T-1003S type 1 set, reaction dark box: 1 set, QFN special light source controller: 1 set, quartz cold trap: 1 set, mercury lamp: 1 set, xenon lamp: 1 set, metal halide lamp: 1 set, 8-bit magnetic stirring device: 1 set, quartz test tubes: 16 (30ml, 50ml each 8), strong magnetic stirrer: 1 set, sample reaction bottle: 1 (250ml, 500ml, 1000ml optional), Mobile cart: 1.
Shanghai Qiaofeng Industrial Co., Ltd. photochemical reactor can be configured according to the requirements specified by the customer.
Six: Analysis of the working principle of the photochemical reactor:
Should be 1 is an initiation reaction, a reaction in which molecules or atoms absorb photons to form an excited state A *. The energy of the photon absorbed by the initiation reaction 1 must be compatible with the energy of the difference in the energy levels of the molecules or atoms. The difference in electron energy levels of material molecules is large, and only the high-energy part of far ultraviolet light, ultraviolet light, and visible light can excite valence electrons to a high energy state. That is, it is possible to initiate a photochemical reaction if the wavelength is less than 700 nm. The generated excited-state molecules are highly active and may produce a series of complex reactions of 2 to 4 above. Reactions 2 and 3 are the two forms of chemical reaction caused by excited molecules. Among them, reaction 2 is the most important one of the photochemical reactions in the atmosphere. Excitation molecules dissociate into more than two molecules, atoms or free radicals, making the atmosphere The pollutants have been converted or migrated. Reactions 4 and 5 are the two forms in which excited molecules lose energy, and the result is to return to their original state.
Seven: Operating instructions of photochemical reactor:
1 Preparation: Connect the power supply. Before using the instrument, first put the eight-position reactor (or magnetic stirrer) into the main box, and put the magneton into the quartz reaction tube (or reaction container). After that, check whether the mercury lamp (xenon lamp), reactor and cooling water circulation device to be used are connected properly. (Connect as shown below)
Schematic of photochemical reaction
Schematic of photochemical reaction
2 There are eight-position reactor (or magnetic stirrer) and lamp power connection in the reaction dark box, please connect according to the instructions
3. Adjust the light source selection on the controller, so that the light source used is consistent with the one on the controller (different according to the type of light source and power)
4. Turn on the fan switch, the reactor and the light switch on the controller in sequence, and the fan starts to work (the air in the reaction dark box starts to drain out.
5. Turn on the power switch on the eight-position reactor (or magnetic stirrer) and adjust the stirring speed as required.
6. The light source power adjustment is located in the center of the controller, and the light source power can be adjusted as needed.
7. There is a microcomputer timer on the upper right of the controller, and the working time can be set as needed.
Note: When using mercury or xenon lamps for experiments, the lamp source must be placed in a quartz cold trap (it is recommended to use a low-temperature cooling circulation device at the same time to avoid instrument damage due to excessive temperature).
Eight: Reasons to buy QFN brand photochemical reactor:
1. The photo-chemical reaction device is separated from the maintenance reaction dark box, the assembly, maintenance and promotion are reasonable, and the whole machine is beautiful and beautiful!
2. This type of main control power control device has light time digital display and active control, suitable for timekeeping homework and data comparison and execution!
3. It is equipped with multiple magnetic stirring reaction vessel functions, which can make the reaction process have strong magnetic stirring, aeration, deflation, sealing, temperature measurement and other functions!
4. The shading device is equipped with a multi-tube magnetic stirrer reactor function, which compensates for the unreasonable changes of the multi-tube coiled light source and the poor function of the multi-test tube self-coloring mechanical function. It can also complete the partial and test tube inflation function. The reactor theory combined value function is excellent!
5. The photochemical reactor has a professional constant analog light source and a constant, space-saving volume design, which is particularly suitable for the execution room with limited space!
6. The photochemical reactor is equipped with a solid reaction device, which can perform photocatalytic reaction on solid materials, and the catalytic rate is selected by the high-efficiency concentrating device!
Nine: Questions and answers during the operation of the photochemical reactor:
First of all, in all stages of operation, maintenance and instrumentation, the following basic safety measures must be observed. When the instrument is used, it should be operated in accordance with the instructions. Illegal use will cause the instrument to work normally, even damage the instrument. First, in order to avoid electric shock accidents, the input power cord of the instrument must be grounded. This instrument uses a three-core grounding plug. This plug has a grounding foot. If the plug cannot be inserted into the seat, an electrician should be installed to install the correct socket. Make the instrument lose ground protection.
Second, pay attention to the use of power: before connecting the AC power supply, make sure that the voltage is consistent with the voltage required by the instrument (tolerable deviation of ± 10%), and ensure that the rated load of the power outlet is not less than the requirements of the instrument.
Third, pay attention to the use of power cords: photochemical reactors usually use the power cord that comes with the device. If the power cord is damaged, it must be replaced without repair. When replacing it, you must replace it with a power cord of the same type and specification. Nothing should be placed on the power cord when using this instrument. Do not place the power cord where people move.
Fourth, pay attention to the placement of the instrument: the photochemical reaction instrument should be placed in a cool, ventilated, dry and dust-proof location. For better heat dissipation, the instrument should be kept at an effective distance from other items (N ï¹¥ 40cm) .
Ten: Latest market quotation of photochemical reactor:
The photochemical reactor is mainly based on the user's different configurations, and there is a big difference in price. Now taking Shanghai Qiaofeng Industrial Co., Ltd. as an example, the price of the basic photochemical reactor and the standard photochemical reactor:
Product name: Photochemical Reactor
Product model: QF-GHX-I
Market price: 31500
Activity price: 25800
Standard configuration: reaction dark box: 1, QFN dedicated light source controller: 1, quartz cold trap: 1, mercury lamp: 1, xenon lamp: 1, metal halide lamp: 1, stirrer: 1, sample Reaction bottle: 1 (250ml, 500ml, 1000ml optional), mobile cart: 1
Product name: Photochemical Reactor
Product model: QF-GHX-II
Market price: 39500
Activity price: 31500
Standard configuration: cold water circulation device: QFN-T-1003S type 1 set, reaction dark box: 1 set, QFN special light source controller: 1 set, quartz cold trap: 1 set, mercury lamp: 1 set, xenon lamp: 1 set, gold Halogen lamp: 1 pc., Stirrer: 1 pc., Sample reaction flask: 1 pc (250ml, 500ml, 1000ml optional), mobile cart: 1 pc.
For the latest quotation of Shanghai Qiaofeng Industrial Co., Ltd. photochemical reactor, please follow the official website of Shanghai Qiaofeng Industrial Co., Ltd .: http: //
Eleven: Daily maintenance of photochemical reactor:
The maintenance of the photochemical reactor is the basis for ensuring the good working condition and long working life of the photochemical reactor. Let's take a look at how to carry out the daily maintenance of photochemical reactions:
1. Keep the stirring shaft of the photochemical reactor clean and visible, and the shaft near the nut. Check whether the rotation direction of the stirring shaft rotates clockwise. Reverse rotation is strictly prohibited.
2. Pay attention to check the change of oil level and the quality of the gearbox of the photochemical reaction instrument, and add or update the corresponding engine oil if necessary.
3. Pay attention to the phenomenon of oil mist corrosion and leakage in the photochemical reaction instrument, whether the thermal insulation and paint are complete, and whether there is shedding or burn.
4. Periodically check the accessories in the photochemical reactor such as stirring, and tighten and loosen the bolts.
5. Listen for abnormal vibration and sound in the photochemical reaction instrument.
Twelve: Eight advantages of Shanghai Qiaofeng's new photochemical reactor:
1. The gas control part of the photochemical reaction instrument is separated from the protective reaction dark box, which is convenient and reasonable, and the atmosphere is beautiful!
2.Professional and stable analog light source of photochemical reaction instrument and stable, save space!
3. The photochemical reactor is equipped with a multi-tube magnetic stirrer reactor function, which makes up for the shortcomings of unreasonable rotation of multiple test tubes around the light source and poor mechanical performance of multiple test tube rotation.
4. The photochemical reaction instrument can carry out photocatalytic reaction on the solid material, and the high-efficiency light-concentrating device improves the catalytic speed and improves the accuracy of the experiment.
6. The low-temperature cooling water supply device of the photochemical reaction instrument is equipped with a silent external circulation pump, which provides cooling water circulation and pressurization, and at the same time saves waste of water sources.
7. The photochemical reaction instrument is waterproof and high temperature resistant, and can be added with a USB computer interface and operation software driver according to customer requirements, with a superior sense of digital operation!
8. Flexible and diverse products of photochemical reactor
Thirteen: Maintenance instructions for photochemical reactor:
(1) Under normal use and maintenance, Shanghai Qiaofeng Industrial Co., Ltd. photochemical reactor is guaranteed for free within one year from the end user receiving the product.
(2) After the photochemical reactor of Shanghai Qiaofeng Industrial Co., Ltd. is in trouble, please contact us by telephone, fax, email, etc., in order to handle the problem in real time.
(3) For performance defects caused by incorrect use of the instrument, or operation and maintenance of the instrument according to the statement, and unauthorized staff to repair the instrument, the free warranty will not be exhausted, and the repair fee must be paid according to the actual
Fourteen: List of typical users of Shanghai Qiaofeng Photochemical Reactor:
Shanghai Qiaofeng Industrial Co., Ltd.'s small spray dryer not only occupies a certain share in the domestic market, our company's QFN brand small spray dryer is also exported to Canada, Singapore and other foreign markets. Domestic customers mainly include: Nanjing University, Shanghai Fudan University, Zhejiang University, Nanjing University of Science and Technology, Nanjing Normal University, Anhui Meteorological Research Institute, Shanghai Jiaotong University, Peking University, Beijing Institute of Technology and other well-known university institutes.
Puyang Optimus Household Products Co., Ltd , https://www.magicspongecn.com