Green synthesis of ZnFe2O4@ZnO nanocomposites using Chrysanthemum spp. floral waste for photocatalytic dye degradation

Nguyen, Ngoan Thi Thao; Nguyen, Luan Minh; Nguyen, Thuy Thi Thanh; Nguyen, Ngoc Hoi; Nguyen, Dai Hai; Nguyen, Duyen Thi Cam; Tran, Thuan Van

doi:10.1016/j.jenvman.2022.116746

Cited by 35 publications

(9 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Omran et al ( Omran, 2023 ) reported superior eco-bioremediation features of ZnO NPs and high capacity to degrade MB (88.93%) and crystal violet (80.69%). Nguyen et al ( Nguyen et al, 2023 ) demonstrated that ZnFe 2 O 4 @ZnO nanocomposites (5.0 mg.L −1 with 0.33 g.L −1 of ZnO) degraded 94.85% of a Congo red dye solution. Gatou et al ( Gatou et al, 2023 ) described the reusability of optimized ZnO NP samples under UV light for five consecutive photocatalytic cycles, maintaining exceptional resistance to degradation.…”

Section: Resultsmentioning

confidence: 99%

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Zaater,

Serhoud,

Ben Amor

et al. 2024

Front. Chem.

View full text Add to dashboard Cite

Ephedra alata leaf extracts have therapeutic properties and contain various natural compounds known as phytochemicals. This study assessed the phytochemical content and antioxidant effects of a Ephedra alata leaf extract, as well as zinc oxide (ZnO) nanoparticle production. The extract contained phenolic acids, including vanillic acid, chlorogenic acid, gallic acid, p-coumaric acid, vanillin and rutin. Its total phenolic content and total flavonoid content were 48.7 ± 0.9 mg.g-1 and 1.7 ± 0.4 mg.g-1, respectively. The extract displayed a DPPH inhibition rate of 70.5%, total antioxidant activity of 49.5 ± 3.4 mg.g-1, and significant antimicrobial activity toward Gram-positive and negative bacteria. The synthesized ZnO nanoparticles had spherical shape, crystallite size of 25 nm, particle size between 5 and 30 nm, and bandgap energy of 3.3 eV. In specific conditions (90 min contact time, pH 7, and 25°C), these nanoparticles efficiently photodegraded 87% of methylene blue, suggesting potential applications for sustainable water treatment and pollution control.

show abstract

Section: Resultsmentioning

confidence: 99%

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Zaater,

Serhoud,

Ben Amor

et al. 2024

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…The photocatalytic efficiency of ZnONPs revealed higher eco-bioremediation capacities by degrading methylene blue (88.93%) and crystal violet (80.69%) dyes, according to Omran [ 83 ]. Additionally, Nguyen et al [ 84 ] showed that the maximal Congo red dye degradation efficiency was 94.85% at 5.0 mg L −1 of ZnFe2O4@ZnO nanocomposites concentration and 0.33 g L −1 of ZnO dosage. Additionally, after 75 min of exposure to sunlight, almost 80% of the MB dye began to break down at pH 8 [ 85 ].…”

Section: Resultsmentioning

confidence: 99%

Green Biosynthesis of Zinc Oxide Nanoparticles Using Pluchea indica Leaf Extract: Antimicrobial and Photocatalytic Activities

et al. 2023

View full text Add to dashboard Cite

Nanotechnology is playing a critical role in several essential technologies with nanoscale structures (nanoparticles) in areas of the environment and biomedicine. In this work, the leaf extract of Pluchea indica was utilized to biosynthesize zinc oxide nanoparticles (ZnONPs) for the first time and evaluated for antimicrobial and photocatalytic activities. Different experimental methods were used to characterize the biosynthesized ZnONPs. The biosynthesized ZnONPs showed maximum Ultraviolet–visible spectroscopy (UV-vis) absorbance at a wavelength of 360 nm. The X-Ray diffraction (XRD) pattern of the ZnONPs exhibits seven strong reflection peaks, and the average particle size was 21.9 nm. Fourier-transform infrared spectroscopy (FT-IR) spectrum analysis reveals the presence of functional groups that help in biofabrication. The existence of Zn and O was confirmed by the Energy-dispersive X-ray (EDX) spectrum and the morphology by SEM images. Antimicrobial studies showed that the biosynthesized ZnONPs have antimicrobial efficacy against Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, Bacillus subtilis, Staphylococcus aureus, Candida albicans and Cryptococcus neoformans where inhibition zones at concentration 1000 µg/mL were 21.83 ± 0.76, 13.0 ± 1.1, 14.9 ± 0.85, 24.26 ± 1.1, 17.0 ± 1.0, 20.67 ± 0.57 and 19.0 ± 1.0 mm respectively. Under both dark and sunlight irradiation, the photocatalytic activity of ZnONPs was evaluated towards the degradation of the thiazine dye (methylene blue-MB). Approximately 95% of the MB dye was broken down at pH 8 after 150 min of sunlight exposure. The aforementioned results, therefore, suggest that ZnONPs synthesized by implementing environmentally friendly techniques can be employed for a variety of environmental and biomedical applications.

show abstract

“…The bandgap engineering was investigated to optimize the light-absorption properties of the nanoparticles, which are supported by the incorporation of light-absorbing materials and cocatalysts that improve electron-hole pair formation and separation. A suitable visiblelight source was employed with the appropriate wavelength and intensity, and precise agitation techniques were used to ensure uniform dispersion [61][62][63]. Because of its high catalytic activity, stability, and low cost, Fe-NiO nanoparticles are a promising material for catalytic applications.…”

Section: Photocatalytic Dye Degradation Activitymentioning

confidence: 99%

Synthesis and Characterizations of Fe-Doped NiO Nanoparticles and Their Potential Photocatalytic Dye Degradation Activities

Minisha,

Johnson,

Mohammad Wabaidur

et al. 2023

Sustainability

View full text Add to dashboard Cite

Recently, the preparation of smart multifunctional hybrid nanoparticles has captured significant interest in versatile areas, including medicine, environment, and food, due to their enhanced physicochemical properties. The present study focuses on the synthesis of Fe-doped NiO nanoparticles by the coprecipitation method using the sources of nickel (II) acetate tetrahydrate and iron (III) nitrate nonahydrate. The prepared Fe-doped NiO nanoparticles are characterized by X-ray diffraction, Fourier transform infrared spectroscopy, UV–visible spectroscopy, field-emission scanning electron microscopy, transmission electron microscopy, and X-ray photon spectroscopic analysis. The XRD results clearly confirm the face-centered cubic structure and polycrystalline nature of the synthesized Fe-NiO nanoparticles. The Tauc plot analysis revealed that the bandgap energy of the Fe-doped NiO nanoparticles decreased with the increasing concentration of the Fe dopant from 2% to 8%. The XPS analysis of the samples exhibited the existence of elements, including Fe, Ni, and O, with the absence of any surplus compounds. The FE-SEM and TEM analyses proved the formation of nanostructured Fe-NiO with few spherical and mostly unevenly shaped particles. Further, the photocatalytic efficiency of the prepared Fe-doped NiO nanoparticles were identified by using the cationic dye rhodamine B (Rh-B). The photocatalytic results proved the 8% of Fe doped with NiO nanoparticles achieved 99% of Rh-B degradation within 40 min of visible-light irradiation. Hence, the results of the present study exemplified the Fe-doped NiO nanoparticles have acted as a noticeable photocatalyst to degrade the Rh-B dye.

show abstract

Green synthesis of ZnFe2O4@ZnO nanocomposites using Chrysanthemum spp. floral waste for photocatalytic dye degradation

Cited by 35 publications

References 100 publications

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Green Biosynthesis of Zinc Oxide Nanoparticles Using Pluchea indica Leaf Extract: Antimicrobial and Photocatalytic Activities

Synthesis and Characterizations of Fe-Doped NiO Nanoparticles and Their Potential Photocatalytic Dye Degradation Activities

Contact Info

Product

Resources

About