Journal
FLUID PHASE EQUILIBRIA
Volume 483, Issue -, Pages 122-143Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fluid.2018.11.006
Keywords
Coumarin-7 dye nanoparticles; Supercritical fluids; Experimental solubility data; Rapid expansion of supercritical solution (RESS); Simulated annealing (SA) optimization algorithm
Funding
- University of Kashan [Pajoo-haneh-1397/1]
Ask authors/readers for more resources
For the first time, solubility of coumarin-7 dye (C7) in supercritical carbon dioxide (SC-CO2) was measured in temperature and pressure ranges of (308-338) K and (90-330) bar, respectively, for binary (C7-CO2) and ternary systems (C7-CO2-methanol). Mole fractions were determined to range from 0.415 x 10(-5) to 1.009 x 10(-5) and 0.1089 x 10(-4) to 1.2007 x 10(-4) for binary and ternary systems, respectively. The solubility data was correlated using two thermodynamic models, namely quadrupolar cubic plus association theory (qCPA) and perturbed-chain polar statistical associating fluid theory (PCP-SAFT). Continuing with the research, the rapid expansion of supercritical solution (RESS) process was used to produce coumarine-7 nanoparticles. Effects of temperature, pressure, nozzle diameter, and spraying distance on the particle size were investigated. For this purpose, unprocessed and processed particles were characterized by FTIR, XRD, DSC, SEM, and DLS. A significant decline (2137 <= x(50) <= 224.13 nm) was observed in the final particle size, as compared to the original one (4035 mu m). (C) 2018 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available