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Заглавие документа: | Sol-gel template synthesis of mesoporous carbon-doped TiO2 with photocatalytic activity under visible light |
Авторы: | Ovodok, E. Maltanava, H. Poznyak, S. Ivanovskaya, M. Kudlash, A. Scharnagl, N. Tedim, J. |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Химия |
Дата публикации: | 2018 |
Издатель: | Elsevier Ltd |
Библиографическое описание источника: | Materials Today: Proceedings; 2018. |
Аннотация: | Mesoporous TiO2 powders with an anatase framework were synthesized through surfactant-assisted template method. The concentrated titania sol (7-8 wt.%) prepared from TiCl4 as a precursor was used in this synthesis. The soluble triblock copolymer Pluronic F127 was employed as a structure-directing agent and a carbon precursor to fabricate the carbon-doped mesoporous titania. The synthesized powders were characterized by XRD, HRTEM, Raman spectroscopy, UV-Vis reflectance spectroscopy, N2 adsorption/desorption and TG/DSC methods. The mesoporous titania annealed at 350°C was shown to have a high specific surface area up to 192 m2/g and a narrow pore size distribution. After annealing, carbon species in graphitic form were detected in the template-prepared TiO2 samples using Raman spectroscopy measurements. The photocatalytic performance of the samples was characterized in the process of Rhodamine B decomposition under visible light irradiation. The enhanced visible light photocatalytic efficiency of the template-prepared TiO2 powders as compared with that of Degussa P25 can be attributed to the associated effects of high specific surface area, pure anatase crystalline structure and carbon doping. |
URI документа: | https://elib.bsu.by/handle/123456789/259560 |
DOI документа: | 10.1016/j.matpr.2018.06.044 |
Scopus идентификатор документа: | 85054955272 |
Финансовая поддержка: | SMARCOAT project. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 645662. This work was also developed in the scope of the project CICECO – Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (Ref. FCT UID/CTM/50011/2013), financed by national funds through the FCT/MEC and when applicable co-financed by FEDER under the PT2020 Partnership Agreement. JT thanks FCT for the research grant IF/00347/2013. |
Располагается в коллекциях: | Статьи сотрудников НИИ ФХП |
Полный текст документа:
Файл | Описание | Размер | Формат | |
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manuscript ID4- 2017Materials Today Proceedings.pdf | 695,54 kB | Adobe PDF | Открыть |
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