Synthesis of Ag-decorated porous TiO2 nanowires through a sunlight induced reduction method and its enhanced photocatalytic activity
| Autor: | Su-Zhen Huang, Xin-Rong Dai, Zhen Jin, Xiaoye Hu, Yun-Chang Yao |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Scanning electron microscope Energy-dispersive X-ray spectroscopy Nanowire General Physics and Astronomy Nanotechnology 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films chemistry.chemical_compound chemistry Chemical engineering Transmission electron microscopy Photocatalysis Phenol 0210 nano-technology Photodegradation Porosity |
| Zdroj: | Applied Surface Science. 387:469-476 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2016.06.130 |
| Popis: | In this work, Ag-decorated porous TiO2 nanowires were successfully synthesized via a facile and low-cost sunlight induced reduction method. The cooperation of sunlight irradiation and ethanol reduction results the formation and decoration of the Ag nanoparticles on the porous TiO2 nanowires. The structure of the Ag-decorated porous TiO2 nanowires were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Energy dispersive spectroscopy (EDS) measurements. It can be seen that the Ag nanoparticles are well dispersed within the porous TiO2 nanowires. The as-prepared Ag-decorated porous TiO2 nanowires exhibits excellent photocatalytic properties. The photocatalytic tests show that 10 ppm methylene blue can be photodegraded within 60 min. And the photodegradation ratio of the Ag-decorated porous TiO2 nanowires much higher than that of P25 and porous TiO2 nanowires. Moreover, the Ag-decorated porous TiO2 nanowires also reveal good photocatalytic activity towards to other organic pollutions, such as phenol and R6G. Therefore, it is believed that the Ag-decorated porous TiO2 nanowires can be used as a potential high performance photocatalyst in wastewater treatment. |
| Databáze: | OpenAIRE |
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