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- W4220796788 abstract "In this research, the isolated bacterium Kocuria rhizophila BR-1 was used to produce extracellular silver nanoparticles (AgNPs), which were separated by dead-end filtration method. Using electron microscopy (SEM) and particle size distribution (PSD) analysis, the synthesised AgNPs were observed to be spherical, with an average size of 48.23 nm and particle size ranging between 20 and 200 nm. The ceramic membrane support was made with low-cost precursors and coated with zirconia nanoparticles via spray pyrolysis. X-ray diffraction (XRD), surface area, contact angle, electron microscopy, particle size distribution, porosity, clean water permeability and average pore size was conducted to characterise the composite membrane (CM). The specific surface area, pore volume, and pore size distribution of the prepared zirconia particles were measured to be 22.04 m2/g, 0.083 cm3/g, and 10.9 nm, respectively. The permeability, porosity, and pore size of membrane were 1.08 × 10−7 L/m2hPa, 30% and 100 nm, respectively. Using a coated membrane and a dead-end filtration, the AgNPs were separated from their aqueous solution at distinct pressures (69–345 kPa) and solute concentrations (0.3 g/L and 0.15 g/L). The permeate flow and AgNPs rejection, at 345 kPa transmembrane pressure and 0.3 g/L feed concentration, was found to be around 32.3 L/m2h and 45%, respectively. Our findings suggest that the ceramic membrane can be used to concentrate different metallic nanoparticles from its broth." @default.
- W4220796788 created "2022-04-03" @default.
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- W4220796788 date "2022-06-01" @default.
- W4220796788 modified "2023-10-01" @default.
- W4220796788 title "Synthesis of zirconia-ceramic composite membrane employing a low-cost precursor and evaluation its performance for separation of microbially produced silver nanoparticles" @default.
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- W4220796788 doi "https://doi.org/10.1016/j.jece.2022.107569" @default.
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