Synthesis of Ternary Fe3O4/ZnO/Chitosan Magnetic Nanoparticles via an Ultrasound-Assisted Coprecipitation Process for Antibacterial Applications

Thanh, Vu Minh; Huong, Nguyen Thi; Dung, Nguyen Dinh Tien; Thu, Le Van; Nguyen-Le, Minh-Tri

doi:10.1155/2020/8875471

Cited by 14 publications

(8 citation statements)

References 29 publications

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“…Then, 0.1802 g of iron(III) chloride hexahydrate was dissolved in 100 mL of distilled water to produce 0.0067 M of iron(III) precursor solution. The molar ratio of Fe(III):Fe(II) was 2:1 [26]. The iron(III) precursor solution was placed on the hot plate magnetic stirrer.…”

Section: Preparation Of Mixed Iron(ii)-iron(iii)-doped Zinc Oxidementioning

confidence: 99%

Synthesis and evaluation of Fe-doped zinc oxide photocatalyst for methylene blue and congo red removal

Cheah

Sum

2022

PROGEE

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Zinc oxide is one of the most common photocatalysts utilized for the photocatalytic degradation of synthetic dyes aside from titanium dioxide. However, the application of ZnO in the treatment of wastewater containing synthetic dyes is limited due to the high energy band gap which allows ZnO to be efficient upon irradiation with ultraviolet radiation only. This study aims to evaluate the photocatalytic degradation efficiency of the zinc oxide photocatalyst and its derivatives, specifically 0.25, 0.5, 2.5 and 5 mol% Fe(II)-doped ZnO, 0.25, 0.5, 2.5 and 5 mol% Fe(III)-doped ZnO and 2.5 mol% Fe(II)-Fe(III)-doped ZnO. The performance of the photocatalysts was evaluated based on the effect of solution pH, effect of photocatalyst loading and nature of dye. The synthesis of photocatalysts were done using sol-gel synthesis method, and photodegradation tests were carried out under visible light exposure for 60 minutes. The photocatalysts were characterized with SEM, FTIR, and UV-Vis spectroscopy. The optical characterization results show that 2.5 mol% Fe(II)-Fe(III)-doped ZnO has the lowest band gap energy of 3.401 eV which was estimated using Tauc’s plot. This further validated the degradation performance of the 2.5 mol% Fe(II)-Fe(III)-doped ZnO photocatalyst where it displayed the highest photocatalytic degradation efficiencies at all pH and photocatalyst loading. The highest degradation achieved using methylene blue was 94.21% and 32.97% using congo red as model solute at optimum pH and 300 mg/L photocatalyst loading. In overall, the present study has proven that Fe-doped photocatalysts have the potential for the degradation of various synthetic dyes upon irradiation with visible light.

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Section: Preparation Of Mixed Iron(ii)-iron(iii)-doped Zinc Oxidementioning

confidence: 99%

Synthesis and evaluation of Fe-doped zinc oxide photocatalyst for methylene blue and congo red removal

Cheah

Sum

2022

PROGEE

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“…Te coating material for magnetic nanoparticles must be compatible and maintain the stability of the magnetic nanoparticles [4][5][6]. Several coating materials for Fe 3 O 4 have been proposed, including polymers (such as dextran, albumin, polyethylene glycol, polyvinylpyrrolidone [7], folic acid [8,9], chitosan [10], and silica [11]).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of Magnetic-Luminescent Fe3O4@ZnO/C Nanocomposites

Astuti

Arief

Muldarisnur

et al. 2023

Journal of Nanotechnology

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A Fe3O4@ZnO/C nanocomposite with a core-shell structure was synthesized using the co-precipitation method. To prevent the aggregation of the Fe3O4 magnetic particles, polyethylene glycol (PEG) was added. The X-ray diffractometer (XRD) results confirmed the formation of Fe3O4 and ZnO phases, with Fe3O4 having a cubic crystal system and ZnO having a hexagonal crystal system. Carbon in Fe3O4@ZnO/C had no effect on the crystal structure of Fe3O4@ZnO. Images from transmission electron microscopy (TEM) and scanning electron microscopy (SEM) revealed that the nanocomposite formed a core-shell structure. The Fourier transform infrared (FTIR) spectra verified the presence of bonds among ZnO, Fe3O4, and carbon. The appearance of the stretching vibration of the C≡C bond on the Fe3O4@ZnO/C sample revealed the nanocomposites’ carbon coupling. Photoluminescence (PL) spectroscopy was used to characterize the optical properties of the nanocomposites. Based on the results of the PL, the sample absorption of visible light was in the wavelength range of 400–700 nm. The photoluminescence of Fe3O4@ZnO differed from that of the Fe3O4@ZnO/C, especially in the deep-level emission (DLE) band. There was a phenomenon of broadening and shift of the band at a shorter wavelength, namely, in the blue wavelength region. Magnetic properties were characterized by vibrating-sample magnetometry (VSM). Based on the VSM results, the sample coupled with carbon exhibited a decrease in magnetic saturation. The presence of carbon changed photon energy into thermal energy. So, this material, apart from being a bioimaging material, can also be developed as a photothermal therapy material.

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“…Various methods have been widely used to synthesize Fe3O4/ZnO nanocomposites. It including hydrothermal [1], ultrasonication [17], coprecipitation [18], and sol-gel [19], sonochemical [20], and biosynthetic [21]. The ultrasonication method has not been carried out of the several methods mentioned.…”

Section: Introductionmentioning

confidence: 99%

“…The ultrasonication method is a method that utilizes high-frequency ultrasonic waves that are radiated into a solution so that it will cause collisions between particles to break large crystal aggregates into small crystal aggregates up to nanoscale. In addition, this method is effective, inexpensive, and environmentally friendly and requires a short time of experimentation [17]. Based on the results above, we researched to analyze Fe3O4/ZnO nanocomposites using ultrasonication.…”

Section: Introductionmentioning

confidence: 99%

FABRIKASI OF Fe3O4/ZnO NANOCOMPOSITE BY ULTRASONICATION METHOD AND ITS APPLICATION FOR ANTIBACTERIAL

Oktavia

Rohmawati

2022

IPR

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The spread of diseases caused by bacteria seriously threatens human health. Alternative materials with antibacterial effects are needed to overcome this problem, such as Fe3O4/ZnO. This study aims to determine the activity of the antibacterial inhibition zone on Fe3O4/ZnO nanocomposites. The Fe3O4/ZnO nanocomposite fabrication used the ultrasonication wave method. Characterization was performed using X-ray diffraction (XRD), Fourier Transforms Infrared (FTIR), and antibacterial activity tests. The results of the XRD analysis showed that the average crystal size was about 42 nm for Fe3O4, 36 nm for ZnO, and 39 nm for Fe3O4/ZnO. The FTIR results on the nanocomposite showed the characteristics of the Fe-O group at the absorption peak of 874.93 and 691.29 cm-1, while at 436.56 cm-1 indicated the presence of Zn-O compound bonds. The Fe3O4/ZnO nanocomposite with a weight ratio (1:10) showed good effectiveness in inhibiting S. aureus and E. coli bacteria at concentrations of 0.8 mg/m and 1 mg/ml. Meanwhile, in E. coli bacteria, the average diameter of the inhibition zone was relatively low. Thus Fe3O4/ZnO nanocomposite has the potential to be applied in antibacterial applications

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Synthesis of Ternary Fe3O4/ZnO/Chitosan Magnetic Nanoparticles via an Ultrasound-Assisted Coprecipitation Process for Antibacterial Applications

Cited by 14 publications

References 29 publications

Synthesis and evaluation of Fe-doped zinc oxide photocatalyst for methylene blue and congo red removal

Synthesis and evaluation of Fe-doped zinc oxide photocatalyst for methylene blue and congo red removal

Synthesis and Properties of Magnetic-Luminescent Fe3O4@ZnO/C Nanocomposites

FABRIKASI OF Fe3O4/ZnO NANOCOMPOSITE BY ULTRASONICATION METHOD AND ITS APPLICATION FOR ANTIBACTERIAL

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