METHOD OF PRODUCTION OF A MATERIAL WITH PHOTOCATALYTIC AND BIOCIDAL PROPERTIES CONTAINING SPATIALLY ORIENTED TITANIUM DIOXIDE NANOTUBES MODIFIED WITH METALS, PARTICULARLY PRECIOUS METALS

摘要

Method of production of a material with photocatalytic and biocidal properties containing spatially oriented titanium dioxide nanotubes modified with metals, particularly precious metals. The method of production of a material with photocatalytic and biocidal properties containing spatially oriented titanium dioxide nanotubes modified with metals, particularly precious metals, consisting in being subjected to induced electric current placed in an electrolyte containing ammonium fluoride and ethylene glycol of the base containing titanium, preferably titanium foil, cleaning the obtained material with ultrasounds and then drying and calcinating is characterised according to the invention by the fact that the received material is placed in a multi-component solution, preferably in the neutral gas atmosphere. A multi-component solution must contain 30-50% of alcohol by weight, preferably isopropanol, as well as ions and/or nanomolecules of one or several metals, preferably two or three, selected from the groups including silver, gold, platinum, palladium, ruthenium, copper, zinc, nickel, rhodium, tungsten, cobalt, iron in the amount of 0.05 - 5% of the weight each as well as water. The mutual weight ratio of the metals is determined to be between 1: 1 and 1: 10. Preferably the multi-component solution is mixed in darkroom conditions for 3-180 min, preferably 120 min. Next, it is irradiated with an UV-emitting lamps for 0.5-6 hrs, dried at the temperature of 60 - 100° C for 0.5 - 24 hrs, favourably for 6 -12 hrs.