The is information that the TiO2 nano-tubes massive under the solar irradiation can transform a mixture of СО2 and water vapour into the natural gas, which can help to resolve the greenhouse gases emissions in future [1]. However, the researchers mention the lack of the knowledge regarding the possibility of thin copper layers’ application within the TiO2 nano-tubes or covering the inner surface if nano-tubes with thin copper or palladium particles. Application of thin Co or Pd layers on TiO2 nanotubes could essentially increase the efficiency of photo-catalytic processes. The internal diameter of TiO2 nanotubes is 60÷135 nm. Such surface modification could enlarge the application field of aforesaid nanotubes for resolving of other problems of ecological chemistry in view to decompose photo-catalytically the refractory organic pollutants in water environment. To cover the internal surface of TiO2 nanotubes with metals (Cu, Pd) so as to ensure its catalytic properties, a new method has been proposed and tested, including a series of stages [2]. The first stage includes the production of nanotubular TiO2 by electrochemical method, through the anodic processing of metal titanium under (-4) ÷ (-10)0C. The resulted material – nanotubular TiO2 is subjected to vacuumizing in the closed chamber. Air and moisture that can be contained within the nanotubes are thus removed. It is to mentioned that the TiO2 produced has the anatase form, which possess photocatalytic activity. Then, under the continuous vacuum conditions, the sensibilization solution containing PdCl2 and SnCl2 salts, is introduced into the reactor containing nanotubular TiO2. At the same time, ultrasonic generator is applied ensuring the cavitation regime conditions. The redox process is thus occurring, resulted in the reduction of nano-fine Pd particles inside the nano-tubes. The vacuum pump is switched off, and sensibilizing solution is removed. The reactor containing the sample under modification is subjected to the secondary vacuumizing so as to remove the liquid within the nano-pores. Under the vacuum regime, the solution is sucked for chemical copper deposition, which results in TiO2 internal surface covering with thin layer of reduced metal copper on Pd particles. In this way, the reducing of thin Co and Pd particles in ensured within the TiO2 nano-pores. On the third stage of the process the similar vacuumizing is performed to remove the liquid solution out of nano-pores, with subsequent sucking of washing distilled water, in order to provide nano-pores washing. This process is running under the specific physical conditions, and is followed by the heat drying. In this way, the multi-stage technological process is proposed along with the reactor design, making it possible to cover the nano-tubes surface with copper by chemical-catalytic reduction [3], which in the perspective could help to radically increase the rate of CO2 conversion in natural gas.