Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101278
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.
Issue Date: 2020
Publisher: Knowledge E
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.
Keywords: TITANIUM DIOXIDE
NANOSTRUCTURE
PHOTOCATALYSIS
BAND GAP
SPECIFIC SURFACE AREA
URI: http://hdl.handle.net/10995/101278
Access: Creative Commons Attribution License
License text: https://creativecommons.org/licenses/by/4.0/
Conference name: IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” (TECHNOGEN 2019)
Conference date: 18.06.2019-21.06.2019
RSCI ID: 44669700
ISSN: 2519-1438
DOI: 10.18502/kms.v6i1.8034
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

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