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Photocatalytic degradation of orange II by titania addition to sol-gel glasses
| Content Provider | Semantic Scholar |
|---|---|
| Author | Garcia, Camila Gonçalvez Llorach, Roberto Galindo Tomás, Guillermo Monrós José Badenes, Agustin |
| Copyright Year | 2011 |
| Abstract | Glasses with SiO2-CaO-ZnO-B2O3-K2O-Al2O3 composition modified by addition of titania (3, 5, 12 and 20% w) have been prepared by sol-gel method. The obtained gels were aged, dried and fired at 600oC/1h in order to stabilise the glass. The resulting fired powders were characterised by UV-Vis-NIR spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). Their photocatalytic capacity on the degradation of orange II dye has been studied. The XRD and TEM results indicate that system is amorphous with a nanostructured microstructure. From UV-Vis-NIR results the band gap calculated is around 3.5 eV for all samples. Photoactivity of powders depends on amount of titania in glass composition and the surface area of prepared samples. The sample with highest surface area and lowest addition of titania (3% w. sample) shows similar activity than commercial anatase used as reference. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://repositori.uji.es/xmlui/bitstream/handle/10234/25623/34065.pdf;jsessionid=93A50A9F92300E6ED935CDE6B58C93F8?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Composition Computed Tomography Scanning Systems D&C ORANGE NO. 4 Dyes Electron Spin Resonance Spectroscopy Elegant degradation Eyeglasses Gel Guilty Gear Xrd Hetaerina caja Kinetics Maxima and minima Nitrates Powder dose form Scanning Electron Microscopy Sol-gel Titania Titanium Transmission Electron Microscopy Ultraviolet Therapy Woods Brand of Tacrine Hydrochloride Zinc Oxide enzyme activity |
| Content Type | Text |
| Resource Type | Article |
