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|Title:||Sol-Gel Synthesis of Nonstoichiometric Titanium Dioxide for Photo-Oxidation of Toxic Organic Substances|
|Authors:||Dorosheva, I. B.|
Rempel, A. A.
Valeeva, A. A.
Weinstein, I. A.
|Citation:||Dorosheva, I. B., Rempel, A. A., Valeeva, A. A., & Weinstein, I. A. (2020). Sol-Gel Synthesis of Nonstoichiometric Titanium Dioxide for Photo-Oxidation of Toxic Organic Substances. KnE Materials Science, 6(1), 1–6. https://doi.org/10.18502/kms.v6i1.8034|
|Abstract:||Titanium dioxide (TiO2) was synthesized by sol-gel method at different values of pH = 3, 7, 8, 9, or 10. X-ray phase analysis has shown that in an acid rout, an anatase phase had crystallized, and in an alkaline rout an amorphous phase of TiO2 was achieved. After annealing for 4 hours at 350∘C, all samples were transformed into anatase phase. The particle size in the different samples varies from 7 to 50 nm depending on the pH. The diffuse reflectance spectra revealed a high value of the band gap width in the range from 2.9 to 3.4 eV and its narrowing after annealing to the range from 2.8to 3.1 eV. The specific surface area measured by BET method was changing from 80 up to 140 m2 /g.|
SPECIFIC SURFACE AREA
|Access:||Creative Commons Attribution License|
|Conference name:||IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” (TECHNOGEN 2019)|
|metadata.dc.description.sponsorship:||The work was carried out according to the state assignment for IMET UB RAS and ISSC UB RAS. I.A. Weinstein thanks Minobrnauki initiative research project № FEUZ-2020-0059 for financial support.|
|Origin:||IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” (TECHNOGEN 2019). — Ekaterinburg, 2020|
|Appears in Collections:||Междисциплинарные конференции, семинары, сборники|
This item is licensed under a Creative Commons License