Absorption performance enhancement by nano-particles and chemical surfactants in binary nanofluids

Response Surface Optimization of Dysprosium Extraction Using an Emulsion Liquid Membrane Integrated with Multi‐Walled Carbon Nanotubes

“…Krishnamurthy et al [23] observed that diffusion of fluorescein dye in water-based nanofluids containing Al 2 O 3 nanoparticles was greater compared to that in water. The experimental results of Kim et al [24] show that the absorption performance improves up to 5.32 times by adding nanoparticles and surfactants into NH 3 /H 2 O solution. They also found that the absorption rate increased with higher concentration of nanoparticles.…”

The influence of silica nanoparticles on hydrodynamics and mass transfer in spray liquid–liquid extraction column

“…In each section, performed studies, type of nanofluids, size and concentration range of nanoparticles, mass transfer measurement method, maximum observed enhancement and suggested mass transport mechanisms were pointed out [13]. In the field of mass transfer in nanofluids, there are a few researches dealt with mass diffusion in nanofluids [1,9,[14][15][16][17][18][19][20] and more researches investigated the influence of nanoparticles on convective mass transfer [10,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. Nevertheless, most researches on convective mass transfer in nanofluids are related to the gas absorption processes [21][22][23][24][25][26][27][28][29][30] and there have been limited attempts to use nanofluids in other popular separation processes such as liquid-liquid extraction [10,[34][35][36]…”

Experimental investigation of benzoic acid diffusion coefficient in γ-Al2O3 nanofluids at different temperatures

“…Uncertainty in the ith independent variable [9][10][11][12][13]. In the case of gas absorption process in nanofluids, most of the researchers have shown that nanoparticles can promote mass transfer coefficient [14][15][16][17][18][19][20]. Although a few studies showed that the mass transport rate in nanofluids is decreased, this can be enhanced with increasing the volume fraction of nanoparticles [21,22].…”