Journal
SUSTAINABILITY
Volume 15, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/su15010067
Keywords
adsorption; antimicrobial properties; kinetics; crystal violet dye
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The study investigated using waste beet pulp shreds as a sorbent to remove crystal violet dye from water and explored the antimicrobial properties of the resulting material. Equilibrium and kinetic studies were conducted to examine the sorption process of crystal violet dye on beet pulp shreds. The Langmuir isotherm model showed the best fit, with a sorption capacity of 28.07 mg/g. Kinetic studies and FT-IR analysis confirmed that the sorption process of crystal violet dye on beet pulp shreds is chemical. The obtained material demonstrated growth inhibition of selected microorganisms, with Escherichia coli and Pseudomonas aeruginosa being more resistant than Candida albicans and Staphylococcus aureus.
The study investigated the waste beet pulp shreds for the use as a sorbent for removing crystal violet dye from aqueous solutions and investigating the antimicrobial properties of the obtained material. During the preparation of the BPSCV (beet pulp shreds with adsorbed crystal violet) material, the equilibrium and kinetic studies of the crystal violet dye (CV) sorption process on BPS were carried out. The equilibrium tests allowed for the selection of the best-fitted isotherm model and the determination of the sorption capacity of the material. It turned out that the Langmuir isotherm model had the best fit (R-2 > 0.98) and the sorption capacity equaled 28.07 mg/g. The pseudo-second-order model R-2 > 0.999 (obtained from kinetic studies) and FT-IR analysis confirmed that the sorption process of the CV on BPS is chemical. The minimal growth inhibition antimicrobial tests showed that the obtained material inhibits the growth of chosen microorganisms. Escherichia coli (MIC = 500 ppm) and Pseudomonas aeruginosa (MIC = 300 ppm) are more resistant to BPSCV than Candida albicans and Staphylococcus aureus (MIC = 100 ppm).
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