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

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.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics, D.C.R. University of Science & Technology, Murthal (Sonepat) Haryana, 131039 (India)
  2. Centre of Excellence for Energy and Environmental Studies, D.C.R. University of Science & Technology, Murthal (Sonepat) Haryana, 131039 (India)
Publication Date:
OSTI Identifier:
22488801
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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