Photocatalytic performance of a nickel ferrite/chitosan/bismuth(III) oxyiodide nanocomposite for metronidazole degradation under simulated sunlight illumination

Arghavan, Fatemeh Sadat; Al-Musawi, Tariq J.; Rumman, Ghaida Abu; Pelalak, Rasool; Khataee, Alireza; Nasseh, Negin

doi:10.1016/j.jece.2021.105619

Cited by 35 publications

(11 citation statements)

References 42 publications

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“…Additionally, the existence of the absorption bands nearly at 1329 and 1235 cm –1 can be ascribed to the symmetric stretching vibrations of the CS main chain that is −C–O–C– and C–O units. The bands centered at around 1430 and 910 cm –1 can be assigned to the deformation of CH 2 groups and saccharide structural units, respectively . Furthermore, the appeared intense and broad absorption band at 3550–3400 cm –1 is the characteristic of the vibrations of the hydroxyl and amine groups present in the CS structure.…”

Section: Resultsmentioning

confidence: 96%

“…The bands centered at around 1430 and 910 cm −1 can be assigned to the deformation of CH 2 groups and saccharide structural units, respectively. 23 Furthermore, the appeared intense and broad absorption band at 3550−3400 cm −1 is the characteristic of the vibrations of the hydroxyl and amine groups present in the CS structure. On the other side, the FT-IR spectrum of the pure LFO encompasses the characteristic peaks of the perovskite structure.…”

Section: Characterization Of Cs-coated Lfo Npsmentioning

confidence: 99%

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Electroactive Core–Shell Chitosan-Coated Lanthanum Iron Oxide as a Food Freshness Level Indicator for Tyramine Content Determination

Pratibha

Kapoor

Rajput

2022

ACS Sustainable Chem. Eng.

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The presented study outlines the fabrication of chitosan (CS)-loaded lanthanum iron oxide (LFO) nanoparticles (CS/LFO) via a simple auto-combustion method combined with ultrasonication. The various prepared x CS/LFOs (x = 100, 200, 300, 400, and 500) were well analyzed with several characterization techniques. The x CS/LFO-modified glassy carbon electrode (GCE) was then utilized for electrochemical tyramine detection. Additionally, the obtained electrochemical response was also compared with the pure constituents. Herein, the numerous electrochemical parameters including the volume of electrocatalyst loaded, pH of solution, and accumulation time were optimized so as to acquire the efficient detection. Under optimum conditions, the 400 CS/LFO-modified GCE exhibited an impressive electrochemical response for tyramine detection. The proposed electrochemical sensor afforded a linear co-relation between the anodic peak current and concentration of tyramine in the range of 0.02–100 μM with the detection limits of 0.6158 μM or 615.8 nM (by the linear sweep voltammetry method) and 0.5814 μM or 581.4 nM (by the differential pulse voltammetry method). Furthermore, the prepared 400 CS/LFO was applied on the screen-printed electrode and its stability was evaluated for a period of 30 days in order to develop a portable electrochemical sensor. The constructed sensor displayed promising stability, repeatability, and reproducibility for tyramine detection. The real-time analysis capability of the introduced sensing platform was evaluated via real sample analysis of various food products including milk, beer, fish, meat, and yoghurt. The prepared sensor afforded desirable recovery rates, demonstrating its practical utility.

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Section: Resultsmentioning

confidence: 96%

Section: Characterization Of Cs-coated Lfo Npsmentioning

confidence: 99%

Electroactive Core–Shell Chitosan-Coated Lanthanum Iron Oxide as a Food Freshness Level Indicator for Tyramine Content Determination

Pratibha

Kapoor

Rajput

2022

ACS Sustainable Chem. Eng.

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“…Moreover, at higher concentrations of MNZ, the excess of the amount of the contaminant molecules were amassed on the surface of the catalyst, which hinders the suitable penetration of the sunlight irradiation to the active sites of the photocatalyst. 50 Based on the results obtained, the maximum degradation rate of MNZ was obtained to be 20 mg L -1 .…”

Section: The Effect Of Mnz Concentrationmentioning

confidence: 96%

“…This observation might be ascribed to the unsuitable interactions of the MNZ molecules and ZnCo2O4/g-C3N4/Cu in acidic and alkaline solutions. 50 The high degradation reactivity of ZnCo2O4/g-C3N4/Cu at neutral pH is considered a privilege, since the pH adjustment step is eliminated prior the photocatalytic treatment. The effect of ZnCo2O4/g-C3N4/Cu amount and contact time…”

Section: The Influence Of Phmentioning

confidence: 99%

ZnCo2O4/g-C3N4/Cu nanocomposite as a new efficient and recyclable heterogeneous photocatalyst with enhanced photocatalytic activity towards the metronidazole degradation under the solar light irradiation

Jahanshahi

Mohammadi

Doosti

et al. 2022

Environ Sci Pollut Res

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In the present study, ZnCo2O4/g-C3N4/Cu is synthesized as a new and highly effectual solar-lightdriven heterogeneous photocatalyst. The prepared photocatalyst is characterized using FT-IR, XRD, XPS, DRS, FESEM, TEM, EDS, and elemental mapping techniques. The performance of ZnCo2O4/g-C3N4/Cu is studied towards the Metronidazole (MNZ) degradation under the solar light radiation. The kinetics of MNZ degradation and efficacy of the operational parameters comprising the initial MNZ amount (10-30 mg L -1 ), photocatalyst dosage (0.005-0.05 g L -1 ), pH (3-11), and contact time (5-30 min) on the MNZ degradation process are investigated. Surprisingly, the ZnCo2O4/g-C3N4/Cu nanocomposite present a privileged photocatalytic performance towards the MNZ degradation under solar light irradiation. The enhanced photocatalytic activity of this photocatalyst can be attributed to the synergistic optical effects between ZnCo2O4, g-C3N4, and Cu. The value of the band gap energy for ZnCo2O4/g-C3N4/Cu is estimated to be 2.3 eV based on the Tauc plot of (αhν) 2 vs. hν. The radical quenching experiments confirm that the superoxide radicals and holes are the principal active species in the photocatalytic degradation of MNZ, whereas the hydroxyl radicals have no major role in such a degredation. The as-prepared catalyst is simply isolated and recycled for at least eight runs without noticeable loss of efficiency. Using the natural sunlight source, applying very low amount of the photocatalyst, neutrality of the reaction medium, short reaction time, high efficiency of the degradation procedure, utilizing air as the oxidant, low operational costs and easy to recover and reuse of the catalyst are the significant highlights of the present method. It is supposed that this study can be a step forward in creating an effective photocatalytic system in the treatment of a wide range of contaminated aquatic environments.

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“…When the MZ concentration was increased from 50 to 100 mg L −1 , the rate constant reduced from 0.0117 to 0.0074 min −1 . This decrease, according to Arghavan et al 2021, is due to a larger concentration of intermediate products, which limits interaction with active hydroxyl radicals, decreasing the rate constant. In addition, a cost estimate based on a 0.05$ per kWh electricity price in the Turkish Republic of Northern Cyprus in 2021 shows that the EEO value for 50 mg L −1 MZ solution is roughly 2 times lower than that for 100 mg L −1 .…”

Section: Variation In Initial Mz Concentrationmentioning

confidence: 99%

Photocatalytic Detoxification of Antibiotic- and Bacteria-Contaminated Water using Cobalt-Doped Ni–Zn Ferrites Magnetic Separable Nanopowders

Mustafa

Oladipo

Mizwari

et al. 2021

Preprint

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Here, metronidazole (MZ) antibiotic degradation and bactericidal efficacy of Co–Ni0.5Zn0.5Fe2O4 (Co–NZF) with and without photoactivation by UV light is reported as a viable cost-competitive water disinfection solution. Co–NZF has a total pore volume of 0.298 cm3 g− 1, a specific surface area of 70.2 m2 g− 1 and sufficiently high magnetic properties (80.35 emu g− 1). After 360 min of UV–assisted irradiation at pH 3, 10 mg Co–NZF, and 4 mM H2O2, the maximum MZ degradation was reached (92.8%). The adsorption result of 10 mg Co–NZF in the dark for 12 h resulted in 70.2% MZ removal, whereas MZ self-degradation was significantly minimal in a blank trial. In the presence of interfering anions and very high molecular weight tylosin antibiotic, Co–NZF maintained 51.7–75.4% degradation efficiency. The effect of the Co–NZF dosage on the viability of Staphylococcus aureus and Escherichia coli strains showed that 15 mg of the catalyst was sufficient to cause bactericidal activity after 180 min in the presence of UV light, while 25 mg is needed under dark conditions. In addition, when compared to Escherichia coli strains, Co–NZF showed higher inhibition against Staphylococcus aureus in time-kill experiments under dose variation.

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Photocatalytic performance of a nickel ferrite/chitosan/bismuth(III) oxyiodide nanocomposite for metronidazole degradation under simulated sunlight illumination

Cited by 35 publications

References 42 publications

Electroactive Core–Shell Chitosan-Coated Lanthanum Iron Oxide as a Food Freshness Level Indicator for Tyramine Content Determination

Electroactive Core–Shell Chitosan-Coated Lanthanum Iron Oxide as a Food Freshness Level Indicator for Tyramine Content Determination

ZnCo2O4/g-C3N4/Cu nanocomposite as a new efficient and recyclable heterogeneous photocatalyst with enhanced photocatalytic activity towards the metronidazole degradation under the solar light irradiation

Photocatalytic Detoxification of Antibiotic- and Bacteria-Contaminated Water using Cobalt-Doped Ni–Zn Ferrites Magnetic Separable Nanopowders

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