Claims
- 1. A matrix for use in a method of removing, reducing or detoxifying organic pollutants from a fluid, comprising a substrate in the form of a plurality of layers of a filamentous, fibrous or stranded base material, and a photoreactive metal semiconductor material bonded with, to or into surfaces of said layers, at least one of said layers being at least partially transparent to light at a wavelength to which the semiconductor material photoreacts.
- 2. A matrix as in claim 1, wherein said layer transparency is a result of at least one of
- (a) the base material being substantially transparent to light at said wavelength, and
- (b) the layer having a porous nature permitting the transmission of said light therethrough.
- 3. A matrix as in claim 2, wherein the base material is fiberglass and the layers are porous.
- 4. A matrix as in claim 1, wherein said layers are formed by convolutions of a cylindrical, multi-convolution sleeve.
- 5. A matrix as in claim 1, wherein said layers comprise at least two coaxial tubes of film or glass coated with said photoreactive material.
- 6. A matrix as in claim 5, wherein each said tube is imperforate.
- 7. A matrix as in claim 1, wherein the photoreactive material is anatase.
- 8. A matrix as in claim 1, wherein the photoreactive material is selected from Cds, CdSe, ZnO.sub.2, WO.sub.3 and SnO.sub.2.
Parent Case Info
This application is a division of application Ser. No. 094,000, filed Sept. 4, 1987, now U.S. Pat. No. 4,892,712.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4892712 |
Robertson et al. |
Jan 1990 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
94000 |
Sep 1987 |
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