NDLI: RHODAMINE-B DYE PHOTODEGRADATION ON Fe-DOPED TiO 2 NANOPARTICLES SYNTHESIZED BY FLAME SPRAY PYROLYSIS

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RHODAMINE-B DYE PHOTODEGRADATION ON Fe-DOPED TiO 2 NANOPARTICLES SYNTHESIZED BY FLAME SPRAY PYROLYSIS

Content Provider	Semantic Scholar
Author	Ismail, Mohamed Amri Memo, Nasir K. Hedhili, Mohamed N. Anjum, Dalaver H. Mañas Bhunia Chung, Suk Ho
Copyright Year	2016
Abstract	Fe-doped TiO2 nanoparticles, with varied iron to titanium atomic ratio from 0 to 10% were synthesized by flame spray pyrolysis (FSP) process, and were used as a photocatalyst for waste water management (Rhodamine B dye degradation). Particle morphology, phase formation, and elemental structure were studied using XRD, Raman, ICP-OES, BET, TEM/HRTEM, EDS, and XPS. For pure TiO2 nanoparticles (~20 nm), anatase was the dominate phase, while iron doping promoted the formation of the rutile phase. EDS, and HRTEM confirmed that iron was uniformly doped within TiO2. A mixture of Fe 2+ and Fe 3+ was observed for the samples, where at lower iron concentration Fe 2+ was common, while Fe 3+ was dominant at higher iron concentration. The band gap for Fe-doped TiO2 was shifted lower by ~1eV when compared to pure TiO2 and UV-vis confirmed the increased absorption in the visible light region. Finally, the photocatalytic activity of the prepared nanoparticles was assessed by the photo-degradation of organic pollutants under visible-light irradiation. Rhodamine B (Rh-B) was used as a model organic pollutant found in waste water containing dye. The results indicated that Fe-doping enhanced the photo-reactivity of the TiO2 nanoparticles with the highest degradation efficiency obtained at 10% Fe in TiO2.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://iwtc.info/wp-content/uploads/2016/05/20.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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