Product Introduction：
The XO series photochemical reactor was successfully developed with the technical support of several professors from Nanjing University of Technology and Nanjing University of Aeronautics and Astronautics. It is mainly used to study photochemical reactions under conditions such as gas-phase or liquid-phase media, fixed or flowing systems, ultraviolet or simulated visible light irradiation, and whether the reaction vessel is loaded with TiO2 photocatalyst. It has the functions of providing samples for analyzing reaction products and free radicals, determining reaction kinetic constants, and measuring quantum yields, and is widely used in research fields such as chemical synthesis, environmental protection, and life sciences.
Its working principle is the discovery and further research of good catalytic ability under ultraviolet light irradiation, and the use of photocatalysts to degrade and treat pollutants is a very active research direction in the environmental field. Many scientists have conducted research on the degradation and treatment of printing and dyeing wastewater, surfactant wastewater, oily wastewater, phenolic wastewater, and pesticide wastewater using photocatalysts. The use of photocatalysts to treat wastewater has many advantages: catalytic reactions can be carried out at room temperature and pressure, with relatively low energy consumption; The degradation rate is relatively fast and the operation is simple; Thirdly, it can explain almost all the organic matter in wastewater, which is mineralized or degraded into CO2 and H2O without secondary pollution. However, there are also disadvantages such as difficulty in returning water to the catalyst and low utilization of solar energy. Photocatalytic oxidation technology uses semiconductors as catalysts, and the energy band occupied by valence electrons in semiconductors is called the valence band,
The adjacent higher energy band, which is the excited state, is called the conduction band, and there is a bandgap between the valence band and the energy band. When irradiated with light with energy greater than the bandgap width, photoelectrons with energy greater than the bandgap width are absorbed, exciting electrons in the valence band to the conduction band where they carry electrons and generate holes in the valence band. Electrons have reducibility, while holes have oxidizability. Holes have a strong ability to acquire electrons and can oxidize OH - and H2O molecules in water into highly oxidizing OH radicals. OH radicals have a reaction energy of 402 MJ/mol and can break C-C, C-H, C-O, C-N, N-H bonds in organic compounds, oxidizing many difficult to degrade organic compounds into inorganic compounds such as CO2 and H2O.
一、Main features:
1. Microcomputer controller with continuously adjustable power.
2. The controller is equipped with an ammeter and a voltmeter for easy observation of changes in current and voltage.
3. There is a microcomputer timer that can be timed step by step.
4. Internal illumination light source with sufficient light reception.
5. Equipped with an eight position magnetic stirrer to thoroughly mix the sample and expose it to light.
6. Double layer quartz cold trap, which can be circulated with cooling water to avoid damage caused by high temperature of the light source.
On the left side of the box, there are two dedicated sockets for the light source and mixing reactor plug inside the box.
8. Equipped with a movable trolley for easy movement or fixation.
9. The chassis is equipped with a temperature protection sensor, which activates power-off protection when the temperature inside the box is too high.
10. Multi functional type, suitable for single processing of 250ml, 500ml, or 1000ml samples, and can also be suitable for simultaneous processing of 8 50ml or 100ml samples.
二、Technical parameters:
1. The power of the light source can be continuously adjusted. LCD display: current, voltage, power. There are feeding or discharging procedures in place.
2. The first European integrated light source controller can be used for various light sources such as mercury lamps, xenon lamps, and metal halide lamps.
3. Mercury lamp power adjustment range: 100~1000W can be continuously adjusted.
4. Xenon lamp power adjustment range: 100~1000W can be continuously adjusted.
5. The power adjustment range of the metal halide lamp is 100~500W, which can be continuously adjusted.
6. Cooling water circulation device cooling capacity: 1500W.
7. Capacity of refrigeration tank: Φ 25 × 25 (circular tank).
8. Hidden stretchable drainage outlet for easy updating of media.
9. The cooling water circulation device is equipped with wheels and a bottom drain valve.
Small capacity reaction section
a. Quartz test tube specifications: 30ml, 50ml, 100ml (or customized).
b. Can process 8 samples simultaneously (or customize).
c. The eight position magnetic stirring device can synchronously adjust the stirring speed of eight samples.
Large capacity reaction section
b. A strong magnetic stirrer is used to thoroughly mix the sample and expose it to light.
三、Configuration List:
1. Cold water circulation device: 1 low-temperature constant temperature bath dedicated to photochemistry
2. Reaction darkbox: 1 unit
3. Dedicated light source controller: 1 unit
4. Double layer quartz cold trap: 2 pieces
5. Mercury lamps: 3 pieces
6. Xenon lamps: 3 pieces
7. Metal Halide Lamp: 1 unit
8. Eight position mixer: 1 unit
9. Quartz test tubes: 16 pieces (8 pieces each for 30ml and 50ml)
10. Powerful magnetic stirrer: 1 unit
11. Sample reaction bottles: 3 pieces
12. Visible filter: 2 pieces
13. Magnetic stirrer: 3 pieces
14. One anti UV glasses
15. Temperature sensor: 1 set