دورية أكاديمية
Efficiency of TiO2 catalyst supported by modified waste fly ash during photodegradation of RR45 dye
| العنوان: | Efficiency of TiO2 catalyst supported by modified waste fly ash during photodegradation of RR45 dye |
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| المؤلفون: | Gilja Vanja, Katančić Zvonimir, Krehula Ljerka Kratofil, Mandić Vilko, Hrnjak-Murgić Zlata |
| المصدر: | Science and Engineering of Composite Materials, Vol 26, Iss 1, Pp 292-300 (2019) |
| بيانات النشر: | De Gruyter, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | azo dye, titanium dioxide, supported catalyst, modified fly ash, photocatalysis, wastewater, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | The waste fly ash (FA) material was subjected to chemical treatment with HCl at elevated temperature for a different time to modify its porosity. Modified FA particles with highest surface area and pore volume were further used as a support for TiO2 catalyst during FA/TiO2 nanocomposite preparation. The nanocomposite photocatalysts were obtained by in situ sol–gel synthesis of titanium dioxide in the presence of FA particles. To perform accurate characterization of modified FA and FA/TiO2 nanocomposite photocatalysts, gas adsorption-desorption analysis, X-ray diffraction, scanning electron microscopy, UV/Vis and Infrared spectroscopy were used. Efficiency evaluation of the synthesized FA/TiO2 nanocomposites was performed by following the removal of Reactive Red 45 (RR45) azo dye during photocatalytic treatment under the UV-A irradiation. Photocatalysis has been carried out up to five cycles with the same catalysts to investigate their stability and the possible reuse. The FA/TiO2 photocatalyst showed very good photocatalytic activity and stability even after the fifth cycles. The obtained results show that successfully modified waste fly ash can be used as very good TiO2 support. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0792-1233 2191-0359 |
| Relation: | https://doaj.org/toc/0792-1233; https://doaj.org/toc/2191-0359 |
| DOI: | 10.1515/secm-2019-0017 |
| URL الوصول: | https://doaj.org/article/3d24590deda3472a99aaa4be68071041 |
| رقم الأكسشن: | edsdoj.3d24590deda3472a99aaa4be68071041 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 07921233 21910359 |
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| DOI: | 10.1515/secm-2019-0017 |