Enhanced removal of emerging pharmaceutical contaminant ciprofloxacin and pathogen inactivation using morphologically tuned MgO nanostructures

Sivaselvam, S.; Premasudha, Paramasivam; Viswanathan, C.; Ponpandian, N.

doi:10.1016/j.jece.2020.104256

Cited by 51 publications

(13 citation statements)

References 59 publications

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“…Also, the α value (0.72) close to 1 suggests the Langmuir isotherm model explained the experimental data better than the Freundlich model 75 . This behavior was similar to that observed in a study where the CIP sorption on MgO nanostructure was examined at CIP concentrations ranging from 25 to 100 mg L −1 76 . In our study, the maximum monolayer biosorption capacity from the Langmuir isotherm was found to be 1.18 × 10 −4 mol g −1 (39.17 mg g −1 ), which is very close to the experimental biosorption capacity (39.15 mg g −1 ).…”

Section: Resultssupporting

confidence: 84%

Attached culture of Gibberella fujikuroi for biocomposite sorbent production and ciprofloxacin sequestration applications

Akar

Sayin

Çelik

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND The fluoroquinolone antibiotics in water sources are significant threats to public health, as well as the water ecosystem and water reuse. In this study, the feasibility of the biosorption of ciprofloxacin (CIP) using pine needles biomass‐Gibberella fujikuroi immobilized biocomposite (PNGFB) was promoted. It was prepared by passive cell immobilization onto the lignocellulosic matrix. The suggested biosorbent was characterized by Fourier Transform Infrared (FTIR) analysis, Scanning Electron Microscope (SEM), and zeta potential analysis. Series of batch and continuous mode experiments were conducted. RESULTS The results of both systems showed that the PNGFB was effectively used for the treatment of CIP contamination. The maximum uptake occurred at pH 6.0, 40 min contact time, 1.0 mL min−1 flow rate, and 0.10 g (batch) and 0.20 g (column) PNGFB dosages. Redlich–Peterson isotherm model was the best suited to equilibrium data and the pseudo‐second‐order model predicted the biosorption kinetics. The maximum monolayer biosorption capability was 39.17 mg g−1. The suggested biocomposite also reached CIP removal yields of 64.14% and 53.74% in synthetic hospital effluent and synthetic urine samples containing 100 mg L−1 antibiotic, respectively. The regeneration study indicates that PNGFB retained its high biosorption and desorption yields during five cycles of the biosorption‐desorption. CONCLUSION The findings clearly showed that the PNGFB seems to be an eco‐friendly, effective, economic, and potentially viable biocomposite sorbent for the sustainable removal of CIP contamination. © 2021 Society of Chemical Industry (SCI).

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Section: Resultssupporting

confidence: 84%

Attached culture of Gibberella fujikuroi for biocomposite sorbent production and ciprofloxacin sequestration applications

Akar

Sayin

Çelik

et al. 2021

J of Chemical Tech & Biotech

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“…The observed peaks confirm the successful formation of the crystallographic phase of face-centered-cubic (FCC) structure according to JCPDS file No. (89-7746) [ 42 ]. The XRD pattern confirms the presence of Mg(OH) 2 and MgO in the sample, and this finding is confirmed by XPS analysis.…”

Section: Resultsmentioning

confidence: 99%

An Eco-Friendly Approach to the Control of Pathogenic Microbes and Anopheles stephensi Malarial Vector Using Magnesium Oxide Nanoparticles (Mg-NPs) Fabricated by Penicillium chrysogenum

Fouda

Awad

Eid

et al. 2021

IJMS

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The discovery of eco-friendly, rapid, and cost-effective compounds to control diseases caused by microbes and insects are the main challenges. Herein, the magnesium oxide nanoparticles (MgO-NPs) are successfully fabricated by harnessing the metabolites secreted by Penicillium chrysogenum. The fabricated MgO-NPs were characterized using UV-Vis, XRD, TEM, DLS, EDX, FT-IR, and XPS analyses. Data showed the successful formation of crystallographic, spherical, well-dispersed MgO-NPs with sizes of 7–40 nm at a maximum wavelength of 250 nm. The EDX analysis confirms the presence of Mg and O ions as the main components with weight percentages of 13.62% and 7.76%, respectively. The activity of MgO-NPs as an antimicrobial agent was investigated against pathogens Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans, and exhibited zone of inhibitions of 12.0 ± 0.0, 12.7 ± 0.9, 23.3 ± 0.8, 17.7 ± 1.6, and 14.7 ± 0.6 mm respectively, at 200 µg mL−1. The activity is decreased by decreasing the MgO-NPs concentration. The biogenic MgO-NPs exhibit high efficacy against different larvae instar and pupa of Anopheles stephensi, with LC50 values of 12.5–15.5 ppm for I–IV larvae instar and 16.5 ppm for the pupa. Additionally, 5 mg/cm2 of MgO-NPs showed the highest protection percentages against adults of Anopheles stephensi, with values of 100% for 150 min and 67.6% ± 1.4% for 210 min.

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“…These results indicate the nanocomposite potential to treat groundwater contaminated with pathogens. Similarly, Sivaselvam et al [146] prepared MgO nanostructures of variable shapes (spherical and cubicle) to test their antibacterial activity in water. It was noted that both nanostructures were able to inhibit bacterial growth by inducing intracellular production of reactive oxygen species (ROS) and by physically damaging the surface of the bacterial cell.…”

Section: Removal Of Microorganisms From Groundwatermentioning

confidence: 99%

“…Magnetic nanoparticles (MNPs) have also gained significant attention owing to their superior properties and characteristics. However, grafting these magnetic nanoparticles with amino functional groups has further improved their performances against a variety of pollutants including heavy metals, microorganisms, and other organic pollutants in water [146]. The antibacterial activities of green synthesized iron nanoparticles (FeNPs) using leaf and seed extract of Moringa oleifera (M. oleifera) were tested against Escherichia coli (E. coli) [147].…”

Section: Removal Of Microorganisms From Groundwatermentioning

confidence: 99%

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

et al. 2021

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Purpose of Review This paper reviews various low-cost treatment techniques such as adsorption, permeable reactive barrier, and biological techniques for the simultaneous removal of chemical and microbial contaminants from groundwater and discusses treatment mechanisms of different treatment techniques. This paper also discusses the challenges of groundwater treatment, how to choose the appropriate treatment technique, and cost analysis of groundwater treatment. Recent Findings Various treatment technologies have been used for the treatment of groundwater: physical, chemical, and biological technologies with different success rates. In the literature, various adsorbents have been successfully synthesized from low-cost and environmentally friendly materials. Adsorption is considered an efficient treatment technique for the removal of both toxic elements and pathogens by utilizing different adsorbents. For example, the nanostructures of MgO with a BET surface area of up to 171 m2/g obtained a very high adsorption capacity of 29,131 mg/g for fluoride ions in water, while the incorporation of iron in activated carbon has improved its adsorption capacity to 51.3 mg/g for arsenic. Moreover, certain adsorbents have shown the capability to remove 99% of the rotavirus and adenovirus from groundwater. Summary Groundwater resources are contaminated with toxic metals and pathogens. Therefore, water treatment technologies should be evaluated for their efficiency to remove such contaminants. Determination of the most cost-effective and efficient treatment technique is not an easy task and requires the understanding of various aspects such as the contaminants present in water, the reuse options considered, and cost analysis of the treatment technique.

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Enhanced removal of emerging pharmaceutical contaminant ciprofloxacin and pathogen inactivation using morphologically tuned MgO nanostructures

Cited by 51 publications

References 59 publications

Attached culture of Gibberella fujikuroi for biocomposite sorbent production and ciprofloxacin sequestration applications

Attached culture of Gibberella fujikuroi for biocomposite sorbent production and ciprofloxacin sequestration applications

An Eco-Friendly Approach to the Control of Pathogenic Microbes and Anopheles stephensi Malarial Vector Using Magnesium Oxide Nanoparticles (Mg-NPs) Fabricated by Penicillium chrysogenum

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

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