Beijing photocatalyst professional addition to formaldehyde in addition to formaldehyde air quality control clean home decoration in addition to taste Photocatalyst

Photocatalyst principle: When nanoscale titanium dioxide ultrafine particles by ultraviolet radiation having a wavelength of 388nm or less, due to the absorption of light energy and its internal excitation of electron-hole pairs, ie, carriers, and then quickly migrate to the surface and activate adsorbed oxygen and water, the generation of reactive free hydroxyl radicals and reactive oxygen species, when the surface adsorption of contaminants and bacteria, chain degradation occurs. Use: spray on the substrate surface Benefits: Full Control: Set photocatalyst degradation of harmful gases, sterilization, anti-mildew and other functions in one; photocatalytic reaction process in itself does not change and the loss occurs, you can semi-permanent recycling; safe, No side effects; good photocatalyst free adhesives and dispersants, there is no chemical toxicity, skin irritation, safety, and environmental protection; energy: long as the light (visible light can), the photocatalyst will be able to play a role, no cost other Energy. Disadvantages: Performance of an impact by a light source, construction technology demanding, high raw material costs. Recommendation: The preferred method of indoor pollution control (the State Building Materials Industry of Building Materials Quality Supervision and Testing Center devaluation products). Advantages [photocatalyst] (1) Security: photocatalytic production of raw materials used in food additives, cosmetics, very safe to use, harmless, can be used in food preservatives. (2) Persistence: semi-permanent use, provides a place photocatalyst reaction with catalytic itself is not consumed, the effect lasting, disinfection, sterilization, remove harmful organic substances sustainable period of 5 to 15 years. (3) photocatalytic: photocatalyst is a reducing medium itself does not change, rapid response, light (sunlight, fluorescent and other light containing UV) in place can be used. (4) non-selective substrates: Almost all can break down bacteria, viruses, toxic and harmful chemical gases, allowing harmful substances harmless. (5) Green: use of solar energy, non-toxic, energy saving. Do not consume energy (coal, oil, etc.), no secondary pollution, the use of natural light to purify the environment and improve the living space. (6) widely used: photocatalyst at normal temperature and pressure to produce a decomposition reaction, the environment is not strictly required, wide range of applications. Photocatalyst Features ------ ----- [security]: can be used as food and drug additives, have international certification, very safe to use. [Green] use of solar energy, non-toxic, energy saving. [Persistent]: photocatalytic reaction provides a place, with catalytic itself does not consume, lasting effects, in environmental management, the photocatalyst can play more than five years of efficacy. [Role] to light photocatalytic principle source of energy for the chemical reaction, the use of titanium oxide as a catalyst, oxygen and water molecules into highly reactive excited surface hydroxyl group and negative oxygen ions, these strong oxidation freedom adsorbed Almost all groups decomposable harmful to humans or the environment, organic matter and some inorganic substances, it quickly oxidative decomposition into water and carbon dioxide, to achieve the purpose of purification.