About the Journal :
Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.
Preparation and Investigation on Thermal Properties of Copper Oxide Nanofluid for Solar Energy Absorption
Nanofluids are colloids of nanoparticles in a selected base fluid. The primary application of nanofluid is to increase the heat transfer extent of liquid coolants like water, ethylene glycol, oil etc. In the present work, Copper Oxide (CuO) nanoparticle is prepared by sol-gel technique from CuSO4.5H2O as a precursor material. CuO nanofluids are prepared by two-step method. In the first step, sol-gel synthesis technique is utilized and the second step involves dispersion by ultrasonication. To examine the crystallite size, shape, composition and surface area of prepared CuO nano particles are characterized by XRD, SEM, FTIR, and BET. Further, the heat absorption capacity is also investigated for the prepared CuO-water nanofluid with the varying weight fraction of 0.1, 0.2 and 0.3 in open sunlight. The maximum solar thermal absorption is reported for 0.3wt% CuO-water nanofluid.