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Analysis of UV Spectrum of TiO2 and Carbon Doped TiO2 Nanofluids

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Nanofluids are tailored or engineered suspensions of nanoparticles in a suitable base fluid. Nanofluids gained importance as next generation heat transfer fluids due to high thermal conductivity. The nanofluids are also proved as a potential candidate for direct absorption solar collectors (DASC). The present work investigates the optical absorption of TiO2 and carbon doped TiO2 (C-TiO2) nanofluids which is necessary for DASC and tunable optical filters. TiO2 and C-TiO2 are prepared by sol gel and characterized by XRD. Nanoparticles of TiO2 and C-TiO2 with weight fractions of 0.04 are dispersed in water and ethylene glycol to obtain TiO2 and C-TiO2 nanofluids. The nanofluids are investigated for their sedimentation time by gravity sedimentation method. Stability of TiO2 nanofluid is nine times more than C-TiO2 nanofluid with water as base fluid but C-TiO2 nanofluid are found to be efficient absorbers than TiO2 nanofluid in certain wavelength regime as shown by the UV results. We suggest that implementing a low volume fraction of C-TiO2 nanofluid can give high stability and good absorption which is a prerequest for DASC and tunable optical filters.
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Document Type: Research Article

Publication date: March 1, 2017

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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