Synthesis of Bi 2 O 3 -doped and TiO 2 -doped porous Lava for photocatalytic studies
| Autor: | Tonghathai Phairatana, Phuri Kalnaowakul, Kornkanok Ubolchollakhet, Weerachai Sangchay, Aphichart Rodchanarowan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Scanning electron microscope Doping chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Dip-coating 0104 chemical sciences law.invention Bismuth chemistry.chemical_compound chemistry Chemical engineering law Titanium dioxide Photocatalysis Calcination 0210 nano-technology Porosity |
| Zdroj: | Materials Today: Proceedings. 5:9312-9318 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2017.10.105 |
| Popis: | The titanium dioxide (TiO2) and bismuth oxide-doped (Bi2O3) porous lava composites were prepared by bath reaction and calcined at 450 °C for 3 h. The prepared composites were later coated on glass substrate by dip coating method. The morphology and phase constituents of TiO2 and Bi2O3 coated layer were characterized using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and X-ray diffraction (XRD), respectively. The photocatalytic properties of TiO2 and Bi2O3 compositions on porous lava composites were evaluated by measuring the degradation ratio of methylene blue (MB) dye in under UV irradiation. The results revealed the good catalytic performance of TiO2-doped and Bi2O3-doped on porous lava powders occurs within 60 minutes without the use of UV irradiation. This indicated that by doping the TiO2 and Bi2O3 on porous lava powders helped to achieve a high photocatalytic activity. Thus, the composite materials were likely considered as potential candidates for using in semiconductor and biomaterial applications. |
| Databáze: | OpenAIRE |
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