Yellow tungsten oxide for formaldehyde removal is an N-type semiconductor material with excellent photocatalytic degradation performance. It is also a well-known photocatalyst. Nano tungsten oxide photocatalyst is a non-toxic and environmentally friendly air purification material, which has a good application prospect in the field of formaldehyde removal.
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Formaldehyde is a common indoor air pollutant found in many homes and buildings. It is a colorless gas, and at elevated levels is highly irritating to the eyes, nose, and lungs. Exposure to formaldehyde may cause adverse health effects. Formaldehyde can be released into the home from many indoor sources, including plywood, particleboard, and other pressed wood products used in home construction and furnishings, and many consumer products. Researchers have developed yellow tungsten oxide photocatalyst for removing formaldehyde from indoor air.
The mechanism of yellow tungsten oxide photocatalyst to remove formaldehyde: under the irradiation of indoor light (sunlight, fluorescent lamp, etc.), it interacts with oxygen molecules and water molecules in the air to produce highly active hydroxyl radicals and negative ions. This synergy can decompose harmful substances in the air into water and carbon dioxide. In addition, this photocatalyst can also achieve sterilization, disinfection, dust removal, self-cleaning and other dings.