An efficient construction method of S-scheme Ag2CrO4/ZnFe2O4 nanofibers heterojunction toward enhanced photocatalytic and antibacterial activity

Hu, Yang; Hao, Hongshun; Zhao, Yirui; Hu, Yutong; Min, Jingkai; Zhang, Gongliang; Bi, Jingran; Yan, Shuang; Hou, Hongman

doi:10.1016/j.colsurfa.2022.128603

Cited by 25 publications

(5 citation statements)

References 52 publications

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“… Sl. no Catalyst Synthesis method Dye Irradiation time (min) Degradation efficacy (%) References 1 MgFe 2 O 4 Microwave sintering MB 180 26 75 2 MnFe 2 O 4 Hydrothermal route MB 1200 67.18 75 3 Fe 3 O 4 /FePC + H 2 O 2 Organic–inorganic complexation 120 78 76 4 Fe 1.85 Cu 0.15 Zr 1.85 W 0.15 O 7 Pechini method CF 60 100 77 5 ZnFe 2 O 4 Co-precipitation method MB 60 29.7 78 6 Ni x Co 1–x Fe 2 O 4 Microwave-assisted green route MB 120 99.76 79 7 BaSO 4 -NPs …”

Section: Resultsmentioning

confidence: 99%

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

El-Khawaga,

Ayman,

Hafez

et al. 2024

Sci Rep

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This study reports the antibacterial and antibiofilm activities of Magnesium ferrite nanoparticles (MgFe2O4) against gram-positive and gram-negative bacteria. The photocatalytic degradation of Carbol Fuchsin (CF) dye (a class of dyestuffs that are resistant to biodegradation) under the influence of UV-light irradiation is also studied. The crystalline magnesium ferrite (MgFe2O4) nanoparticles were synthesized using the co-precipitation method. The morphology of the resulting nanocomposite was examined using scanning electron microscopy (SEM), while transmission electron microscopy (TEM) was employed for further characterization of particle morphology and size. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) were utilized to analyze the crystalline structure, chemical composition, and surface area, respectively. Optical properties were evaluated using UV–Vis spectroscopy. The UV-assisted photocatalytic performance of MgFe2O4 nanoparticles was assessed by studying the decolorization of Carbol fuchsin (CF) azo dye. The crystallite size of the MgFe2O4 nanoparticles at the (311) plane, the most prominent peak, was determined to be 28.5 nm. The photocatalytic degradation of 10 ppm CF using 15 mg of MgFe2O4 nanoparticles resulted in a significant 96% reduction after 135 min at ambient temperature (25 °C) and a pH value of 9. Additionally, MgFe2O4 nanoparticles exhibited potent antibacterial activity against E. coli and S. aureus in a dose dependent manner with maximum utilized concentration of 30 µg/ml. Specifically, MgFe2O4 nanoparticles demonstrated substantial antibacterial activity via disk diffusion and microbroth dilution tests with zones of inhibition and minimum inhibitory concentrations (MIC) for E. coli (26.0 mm, 1.25 µg/ml) and S. aureus (23.0 mm, 2.5 µg/ml), respectively. Moreover, 10.0 µg/ml of MgFe2O4 nanoparticles elicited marked percent reduction in biofilm formation by E. coli (89%) followed by S. aureus (78.5%) after treatment. In conclusion, MgFe2O4 nanoparticles demonstrated efficient dye removal capabilities along with significant antimicrobial and antibiofilm activity against gram-positive and gram-negative bacterial strains suggesting their potential as promising antimicrobial and detoxifying agents.

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Section: Resultsmentioning

confidence: 99%

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

El-Khawaga,

Ayman,

Hafez

et al. 2024

Sci Rep

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“…Figure c,d shows that AMO particles adhere to the surface of ZFO fibers to form heterojunctions with diameters of about 102–180 nm. This structure facilitates the separation of photogenerated e – and h + pairs and increases the region of contact between the catalyst and the reaction medium, thereby enhancing the catalyst performance …”

Section: Resultsmentioning

confidence: 99%

“…This structure facilitates the separation of photogenerated e − and h + pairs and increases the region of contact between the catalyst and the reaction medium, thereby enhancing the catalyst performance. 58 To observe the structure and morphology of the samples, AMO/ZFO-3 was characterized by TEM and HRTEM. Figure 3a shows that the AMO particles are uniformly attached to the surface of the ZFO fiber, indicating that the heterojunction was successfully constructed.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Construction of an S-Scheme Ag₂MoO₄/ZnFe₂O₄ Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation

Zhao

Hao

et al. 2022

Langmuir

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The removal of organic dyes and pathogenic bacteria from contaminated water remains a significant challenge. In the present study, S-type heterojunction Ag2MoO4/ZnFe2O4 (AMO/ZFO) composite nanofibers were synthesized by electrospinning and co-precipitation and fabricated into photoanodes. It is found that the constructed S-type heterojunction of AMO/ZFO composites effectively inhibits the recombination of photogenerated carriers, in addition to the benefits of more exposed active sites and a greater specific surface area. When several properties are improved, AMO/ZFO composites exhibit excellent photoelectrocatalytic performance. The results demonstrate that under visible light irradiation, the photoelectrocatalytic degradation rate of AMO/ZFO-3 to methylene blue reached 76.2% within 50 min, and the killing rate of Salmonella was 83.6% within 80 min. The enhanced photoelectrocatalytic activity was due to the synergy of both electrochemical and photocatalytic effects. More importantly, after four testing cycles, AMO/ZFO-3 still has a better ability to kill pathogenic bacteria and degrade organic dyes due to its high stability. This work provides a feasible method for oxidizing organic dyes and pathogenic bacteria.

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“…The iron oxide nanoparticles have superior biocompatibility. These magnetite nanoparticles are synthesized by several synthetic strategies such as the hydrothermal method, polyol process, solid-state reaction, sonochemical, auto-combustion, sol-gel method, coprecipitation method, and so on [14][15][16][17][18][19]. Kadam et al synthesized the dysprosium doped (Ni 0.8 Co 0.2 Fe 2−x Dy x O 4 ) ferrite materials by a simple ceramic process.…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of antimicrobial activity of spinel structured transition metal ferrites supported on reduced graphene oxide against pathogenic strains of bacteria and fungi

Lakshmi Priya,

Dhayanithi,

Hariprasad

et al. 2024

Nanotechnology

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One of the global challenges for living things is to provide pollution and harmful microbes-free environment. In this study, magnetically retrievable spinel-structured manganese zinc ferrite (Mn0.5Zn0.5Fe2O4) (MZF) was synthesized by a facile solvothermal method. Further, the MZF with different weight percentages (10wt%, 50wt%, and 80wt%) were supported on reduced graphene oxide (rGO). The phase purity and morphology of MZF and MZF/rGO nanocomposite were confirmed by X-ray diffraction technique and scanning electron microscopy, respectively. The Fourier transform infrared spectroscopy, Raman, UV-visible spectroscopy, and thermogravimetric analyses of the as-synthesized nanocomposites were examined for the detection of various chemical groups, band gap, and thermal properties, respectively. The MZF/rGO nanocomposite exhibited significant antibacterial and antifungal activity against Eggerthella lenta, Enterococcus faecalis, Klebsiella pneumonia, Pseudomonas aeruginosa, and Candida albicans compared to bare MZF and rGO. The high surface area of rGO plays a crucible role in antimicrobial analysis. Additionally, the anti-bacterial and fungal activity is compared by synthesizing various metal ferrites such as MnFe2O4, ZnFe2O4, and Fe3O4. The 50wt% MZF/rGO nanocomposite exhibits significantly high antibacterial activity. However, 10wt% MZF/rGO nanocomposite shows good antifungal activity than Fe3O4, MnFe2O4, ZnFe2O4, MnZnFe2O4, 50wt%, and 80wt% MZF/rGO nanocomposites. These findings suggest that the prepared ferrite nanocomposites hold promise for microbial inhibition.

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An efficient construction method of S-scheme Ag2CrO4/ZnFe2O4 nanofibers heterojunction toward enhanced photocatalytic and antibacterial activity

Cited by 25 publications

References 52 publications

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

Construction of an S-Scheme Ag₂MoO₄/ZnFe₂O₄ Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation

Comparative evaluation of antimicrobial activity of spinel structured transition metal ferrites supported on reduced graphene oxide against pathogenic strains of bacteria and fungi

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An efficient construction method of S-scheme Ag2CrO4/ZnFe2O4 nanofibers heterojunction toward enhanced photocatalytic and antibacterial activity

Cited by 25 publications

References 52 publications

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

Photocatalytic, antimicrobial and antibiofilm activities of MgFe2O4 magnetic nanoparticles

Construction of an S-Scheme Ag2MoO4/ZnFe2O4 Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation

Comparative evaluation of antimicrobial activity of spinel structured transition metal ferrites supported on reduced graphene oxide against pathogenic strains of bacteria and fungi

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Construction of an S-Scheme Ag₂MoO₄/ZnFe₂O₄ Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation