Testing and substantial improvement of TiO2/UV photocatalysts in the degradation of Methylene Blue
| Autor: | Jung Hoon Park, Min-Kwang Kim, Hong Joo Lee, Edoardo Magnone |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Process Chemistry and Technology 02 engineering and technology Adhesion 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Adhesion strength chemistry.chemical_compound chemistry Chemical engineering 0103 physical sciences Materials Chemistry Ceramics and Composites Degradation (geology) Irradiation 0210 nano-technology Photodegradation Methylene blue |
| Zdroj: | Ceramics International. 45:3359-3367 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2018.10.249 |
| Popis: | α-Al2O3 hollow fibers (AlHF)-supported TiO2 photocatalysts were prepared by a single dip-coating process. In order to tentatively improve the adhesion strength of TiO2 photocatalysts on the surface of microstructured AlHFs, the use of an adhesion promoter as a Silica-based binder (SBB) was further studied. TiO2 powders, as well as AlHF-supported TiO2 and SBB AlHF-supported TiO2 photocatalysts, were investigated for the photodegradation of the Methylene Blue (MB) under UV irradiation. MB was selected as a model of organic pollutant. AlHF-supported TiO2 photocatalysts show higher photo-catalytic activity than TiO2 powders. Best performance was achieved with an SBB AlHF-supported TiO2 photocatalysts, whereby a degradation ratio of about 65% was obtained. |
| Databáze: | OpenAIRE |
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