| Title |
Synthesis and characterization of mesoporous tungsten oxides and application of its photo-catalytic activity on photo-degradation of methyl orange |
| ID_Doc |
64945 |
| Authors |
Pak, SH; Park, CG |
| Title |
Synthesis and characterization of mesoporous tungsten oxides and application of its photo-catalytic activity on photo-degradation of methyl orange |
| Year |
2021 |
| Published |
|
| DOI |
10.5004/dwt.2021.27446 |
| Abstract |
In this study, mesoporous tungsten oxide was prepared by optimizing the synthesis conditions using P123 as the structure-directing agent, ethanol, and WCl6. The photo-degradation of methyl orange (MO) was investigated using mesoporous tungsten oxide. The thus-synthesized mesoporous tungsten oxide was characterized by X-ray diffraction (XRD), UV-Vis spectroscopy, nitrogen adsorption-desorption analysis, field emission transmission electron microscope (FE-TEM), Fourier transform infrared spectroscopy and its activity in the photocatalytic degradation of methyl orange was investigated by UV-vis spectroscopy. XRD and FE-TEM analyses confirmed that the synthesized mesoporous tungsten oxide catalysts show homogeneity in mesoporosity, along with higher specific surface area with monoclinic structure. The photo-catalytic efficiency of mesoporous tungsten oxide is controlled by the amount of WCl6. The results obtained suggest that mesoporous tungsten oxide (W-3) has the highest photo-catalytic performance in the photo-degradation of methyl orange at a shorter time. When the photocatalytic degradation of MO was performed three times, there was no drop in the photocatalytic activity of mesoporous tungsten oxide. As a result, mesoporous tungsten oxide showed that it can be used to decompose organic dye easily, and efficiently and lead to regeneration of the mesoporous tungsten oxide without compromising their performance during reuse test. |
| Author Keywords |
Mesoporous tungsten oxide; Water treatment; Toxic pollutants; High surface area; Photocatalyst |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED); Conference Proceedings Citation Index - Science (CPCI-S) |
| EID |
WOS:000691618400013 |
| WoS Category |
Engineering, Chemical; Water Resources |
| Research Area |
Engineering; Water Resources |
| PDF |
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