TiO2 Formaldehyde VOC removal


Titanium Dioxide (TiO2) Application

Volatile organic compounds (VOCs) are a wide variety of liquid and solid chemicals that easily evaporate, which significantly impact indoor air quality (IAQ) and influence human health. VOCs and Formaldehyde found in indoor air come from a variety of sources, including paints, varnishes, cleaning supplies, disinfectants, cosmetics, glues and adhesives, pesticides, deodorizers, fuels, dry-cleaned clothes and other household products and furnishings. Chemical products used in home workshops and hobbies often contain VOCs and formaldehyde. All of these products can release organic compounds and formaldehyde while you are using them, and, to some degree, when they are stored.
Sources and health effects of common indoor VOCs

VOCs Possible Sources Health Effects

The following techniques can be used to reduce VOCs and formaldehyde indoor
• Source removal
• surface coating
• increased ventilation
• catalytic reactions
• adsorption
The most effective way to reduce VOCs and formaldehyde in indoor air is to remove or reduce sources of VOCs and formaldehyde. However, the feasibility of source removal will sometimes depend on the circumstances. Photocatalytic oxidation (PCO) is a cost-effective technology for VOCs and formaldehyde removal compared with carbon adsorption or thermal catalysis method.
Titanium dioxide (TiO2) is a known photocatalyst has capable of decomposing organic substance. However, the photocatalysis of the pure TiO2 is not effective for the indoor environment due to a lack of the ultraviolet irradiation inside the building. Doping TiO2 with substance such as C, N or metal can extend the threshold of the absorption spectrum to the visible spectrum region. Thus, doped-TiO2 is able to decompose volatile organic compounds (VOCs) under an indoor environment.
At iScientific, we offer innovative TiO2 nanotechnology coating which processes higher photoactivity, bringing more efficient chemical reaction with better functional effect.