Morphology dependent catalytic activity of TiO{sub 2} nanostructures towards photodegradation of Rose Bengal

Journal Article · Fri Aug 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4929197· OSTI ID:22488801

Malik, Ritu; Kumar, Ashok; Nehra, S. P. ^[1]

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1. Centre of Excellence for Energy and Environmental Studies, D.C.R. University of Science & Technology, Murthal (Sonepat) Haryana, 131039 (India)

This work deals with the synthesis of TiO{sub 2} nanostructures using sol-gel and hydrothermal method for evaluating their photodegradation performance towards decolorization of Rose Bengal (RB). A combination of characterization techniques including X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) and UV–Vis spectroscopy were utilized to evaluate the structural, morphological and optical properties of the obtained nanostructures. It was observed that the TiO{sub 2} nanoparticles prepared using hydrothermal method were highly crystalline and possess higher band gap value, even when same conditions of temperature, pressure, precursor ratios and solvent amount was kept constant while synthesizing TiO{sub 2} nanostructures via sol-gel method. The obvious effect of porous morphology exhibited by TiO{sub 2} nanoparticles prepared using hydrothermal route is reflected in its decolorization performance whereby 92.5% of the RB dye solution was degraded in 70 min of irradiation time.

• OSTI ID: 22488801
• Journal Information: AIP Conference Proceedings, Vol. 1675, Issue 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
FIELD EMISSION
HYDROTHERMAL SYNTHESIS
IRRADIATION
MORPHOLOGY
NANOPARTICLES
NANOSTRUCTURES
OPTICAL PROPERTIES
POROUS MATERIALS
ROSE BENGAL
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SOLVENTS
TITANIUM OXIDES
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
X-RAY DIFFRACTION