Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1995-03-14
1997-02-18
Raimund, Christopher
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
4273722, B01D 5300
Patent
active
056043392
ABSTRACT:
Methods of destroying toxic volatile air-borne toxins are disclosed. In a preferred embodiment, a piece of formaldehyde laden wood substrate such as paneling or furniture is treated with a TiO.sub.2 solution to form a thin and translucent veneer on the surface. This layer acts like a membrane preventing outward transport of formaldehyde and other harmful compounds produced by weatherization and natural degradation of the substrate. In a prefered embodiment the photocatalytic destruction of formaldehyde is achieved. Other toxins destroyed include terpenes and other types of toxic volatile organic compounds(VOCs). While the prefered embodiment is applied to wood based supports such as paneling and furniture, the invention has applicability for other surfaces such as caskets and roof shingles. For example, the TiO.sub.2 coating can be used on flexible paper type face masks in order to destroy air-borne toxic compounds such as formaldehyde and the like that are used in medical environments where embalming procedures using toxins such as formaldehyde are used.
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Fairey, III Philip W.
Muradov Nazim Z.
Tabatabaie-Raissi Ali
Raimund Christopher
Steinberger Brian S.
University of Central Florida
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