Photocatalyst is a general term for light semiconductor materials represented by nano-sized titanium dioxide, which has the advantages of safety, durability, photocatalytic, non-selective to the actuator, green, widely used, etc. However, it is necessary to provide a good working condition for photocatalysts in the process of use. The method of using a photocatalyst is not complicated, it should be cleaned well before use, and then it can be applied with a sprayer and brush.
What are the advantages of photocatalysts?
The advantages of photocatalyst
1. Safety: Photocatalyst production of raw materials commonly used in food additives and cosmetics, the use of very safe, harmless to humans, and can be used for food preservation treatment.
2. Persistence: Semi-permanent use, photocatalysts provide a place for reaction, catalytic effect, they do not consume, the effect is long-lasting, its disinfection, sterilization, and removal of harmful organic substances can last 5 to 15 years.
3. Photocatalytic: Photocatalyst is a kind of reduction medium, that does not change, rapid reaction, there is light (sunlight, fluorescent lamps, and other visible light sources) can be used.
4. No selectivity for the action object: It can decompose almost all bacteria, viruses, and toxic and harmful chemical gases, and make harmful substances harmless.
5. Green: The use of light energy, non-toxic, harmless, energy saving. No energy consumption (coal, oil, etc.), no secondary pollution, and the use of natural light to purify the environment and improve the living space.
6. A wide range of applications: Photocatalyst at room temperature, normal pressure decomposition reaction, no strict requirements for the environment, a wide range of applications.
The shortcomings of photocatalyst
1. Need to try to maintain indoor light, to provide a good working condition for the photocatalyst, while the photocatalyst and other passive air purification products, as well as the need for hazardous substances in the air and its surface contact to react, so you need to enhance the mobility of the indoor air, to maintain a certain degree of ventilation is beneficial.
2. Photocatalyst Since the name "light" catalyst, there must be light to be effective, preferably in ultraviolet irradiation, some of the better products can also be in the visible ultraviolet part of the irradiation occurs, but still need light, so the photocatalyst products are mainly used for construction of the wall, for furniture cabinets, drawers, etc. The effect is not obvious! The effect is not obvious for furniture cabinets, drawers, and so on;
3. In addition, photocatalysts need professionals to use the spray gun construction, individuals can not construct their own;
4. Photocatalysts can only adsorb harmful substances in the air, have no effect on the source of pollution, and can not solve the root causes of indoor pollution.