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Information × Registration Number 0223U002485, 0120U102390 , R & D reports Title Development of effective titanium oxide photocatalysts for the conversion of hydrazine and its derivatives into environmentally friendly products popup.stage_title Head Manoryk Petro A., Доктор хімічних наук Registration Date 21-02-2023 Organization L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine popup.description2 Preparation methods were developed and C and C,S-doped TiO2 nanostructures were obtained, their chemical and phase composition, morphology, textural and spectral characteristics were determined. The photocatalytic activity (PCA) of the obtained materials in the hydrazine photodegradation under ultraviolet and visible light irradiation was investigated by spectrophotometry and quartzmicrobalance methods.It was established that the obtained crystalline micromesoporous and mesoporous nanostructures demonstrate PCA, due to the presence of interstitual C and S, which, can charge transfer band and ensure the visible light absorption. It is shown that with increasing Х, where Х=НAс or Н2SO4/Ti(BuO)4 PCAUV/VIS for C-TiO2(120/370) changes extremely sympathetically with changes in SBET, Smeso, and under X=12 with increasing Tc PCAUV/VIS decreases sympathetically with a decrease in SBET and the content of interstitual C. It is shown that in crystalline spheroidal (X)C,S-TiO2(120/370) nanostructures with increasing X, SBET changes extremely (at X=0.64) due to the formation of TiOSO4xH2O, and PCAUV changes symbatically with anatase content, then as PCAVIS decreases symbathetically with interstitual C and C/S content and the amorphous and crystalline phase ТiОSО4 хН2О content increasing. The thin layers forming methods of C and C,S-doped TiO2 materials as photocatalysts on various surfaces have been developed. Devices for the photocatalytic transformations of hydrazine study by the spectrophotometry and quartzmicrobalance methods were developed and manufactured. A spectrophotometric method for hydrazine determination in the range from 1.310-6 to 9.810-5 M was developed. The kinetics of hydrazine photocatalytic decomposition in laboratory conditions was studied. The recommendations for the thin titanium oxide materials layers formation on the surfaces of certain building structures and for ensuring for formed photocatalyst layers effective irradiation have been developed. Product Description popup.authors Grebennikov Volodymyr M Romanovska Natalia I. Tverskov Olexandr Yu Shulzhenko Olexandr V popup.nrat_date 2023-02-21 Close