Peroxymonosulphate Activation by Basolite® F-300 for Escherichia coli Disinfection and Antipyrine Degradation

Fdez-Sanromán, Antía; Pazos, Marta; Sanromán, Á.

doi:10.3390/ijerph19116852

Cited by 5 publications

(5 citation statements)

References 74 publications

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“…The antibacterial capability of the system of synthesized CuFe-MOFs and PMS was determined by the colony-forming unit assay as described in Section 3. In this study, Escherichia coli (E. coli) was selected as the model bacteria based on previous studies of our group [8,65]. Due to PMS alone at a concentra- As shown in Figure 8c, the amount of compounds measured during the treatment of SMX and ANT in the system UV/CuFe(BDC-NH 2 ) D /PMS is lower than the other catalysts.…”

Section: Antibacterial Capabilitymentioning

confidence: 99%

“…According to Fdez-Sanromán et al [8], similar steps were taken to activate and disinfect E. coli CECT 102. In summary, the E. coli CECT 102 inoculum was transferred into a 250 mL Erlenmeyer flask, with 50 mL of MPB medium.…”

Section: Culture Conditionsmentioning

confidence: 99%

“…As mentioned previously, the disinfection process was followed by Fdez-Sanromán et al [8]. As a first step, 0.5 mL of E. coli CECT 102 inoculum was transferred to a 250 mL Erlenmeyer flask, containing 50 mL of MPB medium This was incubated for 20 h at 180 rpm, at 37 • C, in the dark.…”

Section: Disinfection Experimentsmentioning

confidence: 99%

“…After that, E. coli CECT 102 inactivation experiments were carried out to determine the concentration of the three catalysts (0.25 g/L), CuFe(BDC-NH 2 ) R , CuFe(BDC-NH 2 ) S , and CuFe(BDC-NH 2 ) D for a concentration of PMS (0.1 mM). The disinfection experiment was accomplished by adding 1 mL of concentrated E. coli culture to 99 mL of synthetic water [8] and a mixture of catalyst and PMS. During the experiment, the mixture was kept in an incubator at 80 rpm, 25 • C, and in the dark and samples were taken at 5, 15, 30, and 60 min to follow the disinfection process.…”

Section: Disinfection Experimentsmentioning

confidence: 99%

“…Several studies have demonstrated the high degradation capability of sulfate radicals generated in SR-AOPs when used to remove organic contaminants such as dyes, phenolic and pharmaceuticals compounds, pesticides, and pathogens [7,8]. However, to improve its application several drawbacks must be overcome.…”

Section: Introductionmentioning

confidence: 99%

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Peroxymonosulfate Activation by Different Synthesized CuFe-MOFs: Application for Dye, Drugs, and Pathogen Removal

et al. 2023

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In this study, three CuFe-MOFs were successfully synthesized by a solvothermal process by changing the ratio of solvents, salts, or temperature. These MOFs named CuFe(BDC-NH2)R, CuFe(BDC-NH2)S, and CuFe(BDC-NH2)D showed rod-shaped, spindle-like, and diamond-like structures, respectively. The CuFe(BDC-NH2)D and CuFe(BDC-NH2)S were found to exhibit an improved PMS activation for Rhodamine B removal attaining levels around 92%. Their effective removal capability was investigated as a function of the pH, catalyst dosage, and the effect of the application of UV radiation. The best degradation system was photo-assisted activation of PMS when CuFe(BDC-NH2)D and CuFe(BDC-NH2)S were used. Under these conditions, the degradation of a mixture of antibiotic and anti-inflammatory drugs (sulfamethoxazole and antipyrine) was evaluated with the results revealing the total degradation of both drugs after 1 h. A higher antibacterial activity was attained with the system CuFe(BDC-NH2)R/PMS due to the high copper content with respect to the others.

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Section: Antibacterial Capabilitymentioning

confidence: 99%

Section: Culture Conditionsmentioning

confidence: 99%

Section: Disinfection Experimentsmentioning

confidence: 99%

Section: Disinfection Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Peroxymonosulfate Activation by Different Synthesized CuFe-MOFs: Application for Dye, Drugs, and Pathogen Removal

et al. 2023

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Nanostructured copper-organic frameworks for the generation of sulphate radicals: application in wastewater disinfection

Giráldez,

Fdez-Sanromán,

Terrón

et al. 2023

Environ Sci Pollut Res

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In recent years, the presence of pathogens in the environment has become an issue of widespread concern in society. Thus, new research lines have been developed regarding the removal of pathogens and persistent pollutants in water. In this research, the efficacy of nanostructure copper-organic framework, HKUST-1, has been evaluated for its ability to eliminate Escherichia coli and generate sulphate radicals as catalyst for the treatment of effluents with a high microbiological load via peroxymonosulphate (PMS) activation. The disinfection process has been optimized, achieving complete elimination of Escherichia coli growth after 30 min of testing using a concentration of 60.5 mg/L HKUST-1 and 0.1 mM of PMS. To overcome the operational limitations of this system and facilitate its handling and reutilization in a flow disinfection process, HKUST-1 has been efficiently encapsulated on polyacrylonitrile as a novel development that could be scaled up to achieve continuous treatment.

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One-pot synthesis of bimetallic Fe–Cu metal–organic frameworks composite for the elimination of organic pollutants via peroxymonosulphate activation

Fdez-Sanromán,

Rosales,

Pazos

et al. 2023

Environ Sci Pollut Res

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A series of bimetallic of FeCu metal–organic frameworks (MOFs) have been synthesised using a solvothermal process by varying the ratio between the two metals. Further, the bimetallic MOF catalysts were characterised by X-ray powder diffraction, scanning electron microscopy, and infrared spectroscopy techniques. Their catalytic properties for activation of peroxymonosulphate (PMS) have been tested by the removal of a model dye, rhodamine B. As a result, NH2–Fe2.4Cu1-MOF demonstrated the highest degradation, the effect of the ratio NH2–Fe2.4Cu1-MOF/PMS has been studied, and the main reactive species have been assessed. The application of these MOFs in powder form is difficult to handle in successive batch or flow systems. Thus, this study assessed the feasibility of growing NH2–Fe2,4Cu1-MOF on polyacrylonitrile (PAN) spheres using the one-pot solvothermal synthesis method. The optimisation of the catalytic activity of the synthesised composite (NH2–Fe2.4Cu1-MOF@PAN) has been evaluated by response surface methodology using a central composite face-centred experimental design matrix and selecting as independent variables: time, PMS concentration, and catalyst dosage. Based on the results, the optimisation of the operational conditions has been validated. At 2.5 mM PMS, 90 min, and 1.19 g·L−1 of catalyst dosage, maximum degradation (80.92%) has been achieved, which doubles the removal values obtained in previous studies with other MOFs. In addition, under these conditions, the catalyst has been proven to maintain its activity and stability for several cycles without activity loss. Graphical Abstract

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Peroxymonosulphate Activation by Basolite® F-300 for Escherichia coli Disinfection and Antipyrine Degradation

Cited by 5 publications

References 74 publications

Peroxymonosulfate Activation by Different Synthesized CuFe-MOFs: Application for Dye, Drugs, and Pathogen Removal

Peroxymonosulfate Activation by Different Synthesized CuFe-MOFs: Application for Dye, Drugs, and Pathogen Removal

Nanostructured copper-organic frameworks for the generation of sulphate radicals: application in wastewater disinfection

One-pot synthesis of bimetallic Fe–Cu metal–organic frameworks composite for the elimination of organic pollutants via peroxymonosulphate activation

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