Production of a catalytically active, metallized reactive foam material and use thereof
OwnerWolfgang Kollmanninventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a catalytic material which is used as an optofluidic reactor, and also a method for production thereof. In this case, first a reticulated plastic foam can be fabricated which then is coated with at least one first metal or metal alloy layer. Subsequently, a photocatalytic substrate is then applied to the metal or metal alloy layer. The photocatalytic substrate eliminates bacteria, viruses and other harmful substances, as well as fine dust or fungal spores, when the optofluidic reactor is used.
Claims21
1-10. (canceled)
A method of producing a catalytic material for eliminating contaminants, wherein the method comprises:
- (a) providing a panel made of reticulated plastic foam having a thickness of at least 10 mm;
- (b) applying several copper layers on a surface of the panel of (a);
- (c) applying a photocatalytic TiO2 substrate in a sol-gel method from solution by immersion, flow-coating or spraying;
- and wherein after (b) and before (c) a further metal layer of aluminum, nickel, tin, zinc, silver, palladium, platinum, or alloys thereof is applied.
A method of producing a catalytic material for eliminating contaminants, comprising a base material selected from fluid-permeable reticulated plastic foam, metal or a textile base material made of a plastic, glass or carbon material, wherein the method comprises:
- (a) coating the base material, if selected from a fluid-permeable reticulated plastic foam or a textile base material made of a plastic, glass or carbon material, with a copper layer of a thickness >1 μm by a vapor deposition or chemical copper deposition;
- (b) electroplating a copper layer obtained in (a) with copper, iron or aluminum at a layer thickness of more than 10 μm;
- (c) applying a further metal or metal alloy layer having a thickness >5 μm selected from white bronze, yellow bronze, NiP, Cr, NiCo, ENiCoP, and CoSn and further from Pd, Pt or silver, or alloys thereof with Ni, Zn, Co or Sn;
- and
- (d) electroplating or applying by an externally currentless method a photocatalytic TiO2 metal-matrix layer having a thickness >1 μm on a metal or metal alloy layer obtained in (c).
A catalytic material for eliminating contaminants, wherein the material comprises:
- (a) a panel made of reticulated plastic foam having a thickness of at least 10 mm;
- (b) several copper layers on a surface of the panel (a);
- (c) a photocatalytic TiO2 substrate applied in a sol-gel method from solution by immersion, flow-coating or spraying;
- and wherein a further metal layer made of aluminum, nickel, tin, zinc, silver, palladium, platinum, or alloys thereof is present between (b) and (c).
A catalytic material, wherein the material comprises a base material which is made of fluid-permeable reticulated plastic foam or metal or a textile base material made of a plastic, glass or carbon material and has a coating which comprises the following sequential layers:
- (a) a copper layer having a thickness >1 μm;
- (b) a copper, iron or aluminum layer having a thickness of more than 10 μm;
- (c) a further metal or metal alloy layer having a thickness >5 μm, selected from white bronze, yellow bronze, NiP, Cr, NiCo, ENiCoP, and CoSn and further from Pd, Pt or silver, or alloys thereof with Ni, Zn, Co or Sn;
- and
- (d) a photocatalytic TiO2 metal-matrix layer.
Dependencies are inferred from the claim text.