Novel green synthesis of S-doped TiO2 nanoparticles using Malva parviflora plant extract and their photocatalytic, antimicrobial and antioxidant activities under sunlight illumination

Helmy, Elsayed T.; Abouellef, Elsayed M.; Soliman, Usama A.; Pan, Jia Hong

doi:10.1016/j.chemosphere.2020.129524

Cited by 73 publications

(18 citation statements)

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“…Environmental contamination is caused by the discharge of significant amounts of wastewater from the textile, pharmaceutics, textile dying, cosmetics, food production, and photography sectors. These discharges are hazardous in environment because they typically contain a large number of harmful chemicals that do not decompose [10][11][12][13]. Various TiO 2 magnetic composites such as, Cu 0.5 Mg 0.5 Fe 2 O 4 , TiO 2 ,TiO 2 maintained on magnetic core shell (Si@ Fe) surface, Fe 3 O 4 @ TiO 2 , Magnetic TiO 2 @ Fe 3 O 4 /reduced graphene oxide, poly (GMA)@ Ru/ TiO 2 @ Fe 3 O 4 , magnetic carbon-supported TiO 2 , yolk-shell Fe 3 O 4 @ TiO 2 nanosheet/Ag/g-C 3 N 4 and others have been tested for degradation of different pollutants [14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

et al. 2022

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In this work, a magnetically separated photocatalyst with great efficiency CuCe-Ferrite/TiO2 composite was prepared and characterized by X-ray diffraction (XRD), UV–Vis spectrophotometry, Fourier transformer infra-red spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM). Single-phase cubic spinel was formed by calcining the prepared sample at a temperature of 550 °C, according to the results. Different concentrations of reactive red 250 (RR250) dye photodegradation was evaluated using different doses of CuCe-ferrite/ TiO2 and TiO2 NPs. Higher efficiency of RR250 photodegradation up to 100% was obtained using CuCe-ferrite/ TiO2. The photodegradation efficiency was confirmed using chemical oxygen demand (COD) test of both treated and untreated samples. The oxidation process was mostly mediated by photogenerated .O2− according to scavenger test results. The catalyst possess higher photodegradation efficiency even after regeneration for ten times. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

et al. 2022

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“…Due to the presence of phytochemicals such as phenols, flavonoids, and terpenoids in the plants, they are used for the synthesis of nanoparticles and act as non-toxic reducing, capping, and stabilizing agents [ 14 ]. The role of ZnO-NPs is also reported in various biological applications such as antibacterial, antifungal, and anticancer activities.…”

Section: Introductionmentioning

confidence: 99%

Rubus ellipticus Sm. Fruit Extract Mediated Zinc Oxide Nanoparticles: A Green Approach for Dye Degradation and Biomedical Applications

et al. 2022

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Rubus ellipticus fruits aqueous extract derived ZnO-nanoparticles (NPs) were synthesized through a green synthesis method. The structural, optical, and morphological properties of ZnO-NPs were investigated using XRD, FTIR, UV-vis spectrophotometer, XPS, FESEM, and TEM. The Rietveld refinement confirmed the phase purity of ZnO-NPs with hexagonal wurtzite crystalline structure and p-63-mc space group with an average crystallite size of 20 nm. XPS revealed the presence of an oxygen chemisorbed species on the surface of ZnO-NPs. In addition, the nanoparticles exhibited significant in vitro antioxidant activity due to the attachment of the hydroxyl group of the phenols on the surface of the nanoparticles. Among all microbial strains, nanoparticles’ maximum antibacterial and antifungal activity in terms of MIC was observed against Bacillus subtilis (31.2 µg/mL) and Rosellinia necatrix (15.62 µg/mL), respectively. The anticancer activity revealed 52.41% of A549 cells death (IC50: 158.1 ± 1.14 µg/mL) at 200 μg/mL concentration of nanoparticles, whereas photocatalytic activity showed about 17.5% degradation of the methylene blue within 60 min, with a final dye degradation efficiency of 72.7%. All these results suggest the medicinal potential of the synthesized ZnO-NPs and therefore can be recommended for use in wastewater treatment and medicinal purposes by pharmacological industries.

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“…The generated charge carriers produce free radicals and superoxides. These compounds dissociated the dye molecules to noxious compounds [61,62,68,69]. The UV light irradiation inhibits the e-h pair very strappingly and produces an enormous amount of free radicals than visible light irradiation.…”

Section: Ftir Analysismentioning

confidence: 99%

Photocatalytic Activity of Green Construction TiO₂ Nanoparticles from Phyllanthus niruri Leaf Extract

Shimi

Wabaidur

Siddiqui

et al. 2022

Journal of Nanomaterials

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The present research work reports the facile and green synthesis of TiO2 nanoparticles from Phyllanthus niruri leaf extract using the coprecipitation method. The plant biomolecules were responsible for the nanoproduction and exhibited reduction and stabilization activity. The green synthesized TiO2 nanoparticles were analyzed in various characterization methods. The crystalline size (23 nm) and anatase phase of TiO2 nanoparticles were analyzed from X-ray diffraction study. The reduction and stabilization response functional group of TiO2 nanoparticles was studied from FTIR analysis. The optical properties of TiO2 nanoparticles were constructed from the UV-DRS technique, and their calculated bandgap is 3.16 eV. The spherical morphology and their existing materials were identified using FESEM with EDX. The catalytic activity of TiO2 nanoparticles was examined against methylene blue dye under ultraviolet and visible light irradiation. It was detected that ultraviolet irradiation showed higher photocatalytic activity than visible light irradiation. In addition, visible light irradiation provides the above 90 percentage degradation of methylene blue dye. Hence, TiO2 nanoparticles were proposed as a potential catalyst of photocatalytic dye degradation application and water remediation activities.

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Novel green synthesis of S-doped TiO2 nanoparticles using Malva parviflora plant extract and their photocatalytic, antimicrobial and antioxidant activities under sunlight illumination

Cited by 73 publications

References 50 publications

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

Rubus ellipticus Sm. Fruit Extract Mediated Zinc Oxide Nanoparticles: A Green Approach for Dye Degradation and Biomedical Applications

Photocatalytic Activity of Green Construction TiO₂ Nanoparticles from Phyllanthus niruri Leaf Extract

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Novel green synthesis of S-doped TiO2 nanoparticles using Malva parviflora plant extract and their photocatalytic, antimicrobial and antioxidant activities under sunlight illumination

Cited by 73 publications

References 50 publications

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

Rubus ellipticus Sm. Fruit Extract Mediated Zinc Oxide Nanoparticles: A Green Approach for Dye Degradation and Biomedical Applications

Photocatalytic Activity of Green Construction TiO2 Nanoparticles from Phyllanthus niruri Leaf Extract

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Photocatalytic Activity of Green Construction TiO₂ Nanoparticles from Phyllanthus niruri Leaf Extract