Magnetic Fe3O4@TiO2 nanocomposites to degrade bisphenol A, one emerging contaminant, under visible and long wavelength UV light irradiation

Chu, An-Chun; Sahu, Rama Shanker; Chou, Tzu-Ho

doi:10.1016/j.jece.2021.105539

Cited by 26 publications

(11 citation statements)

References 54 publications

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“…More trapped electrons are released, resulting in the formation of OH * free radicals. As a result, increasing the creation of electron-hole pairs maximizes the active organism's size and degradation performance [40][41][42][43][44]. The detailed mechanism is shown in Figure 7.…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Shimi

Ahmed

Wahab

et al. 2022

Journal of Nanomaterials

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Metal oxide photocatalyst is one of the promising photocatalysts in the water remediation process. The present work is aimed at synthesizing the green production of TiO2 (G-TiO2) nanoparticles from mulberry plant extract. Plant phytochemicals serve a different role to produce the nanophase particles. The bioreductant is safer and noxious free compound for synthesizing the G-TiO2 nanoparticles. The synthesized G-TiO2 nanoparticles in anatase phase and their crystallite size of 24 nm were characterized from X-ray diffraction analysis. The Ti-O bonding and plant derivatives and their reduction were confined from FTIR analysis. The wide bandgap of G-TiO2 nanoparticles (3.16 eV) and their optical characterization were captured from UV-DRS analysis. The spherical surface morphology and their Ti and O elemental configurations were characterized from FESEM with EDX technique. The photocatalytic dye degradation was examined against methylene blue dye, and their pseudo-first-order kinetics were evaluated. The cyclic experiments declared their catalytic potential. The bacterial resistance of G-TiO2 nanoparticles was examined against gram-positive and gram-negative bacteria. Hence, the catalytic potential and bacterial stability of G-TiO2 nanoparticles are the powerful candidate for water remediation and biomedical applications.

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Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Shimi

Ahmed

Wahab

et al. 2022

Journal of Nanomaterials

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“…Moderate iron loading reduced hole-pair separation effectively, and shifted the bandgap in the visible range. Further, the magnetic properties of Fe 3 O 4 play a critical role in recovering the used catalyst from the solution, which facilitates practical applications of the Fe 3 O 4 @TiO 2 photocatalyst 34 . Fe 3 O 4 @SiO 2 @g-C 3 N 4 /TiO 2 nanocomposite was used to remove dye pollutants.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic activity of ZrO2/TiO2/Fe3O4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology

Zare

Mehrabani-Zeinabad

2022

Sci Rep

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In this study, ZrO2, TiO2, and Fe3O4 components were synthesized by co-precipitation, sol–gel, and co-precipitation methods, respectively. In addition, solid-state dispersion method was used for synthesizing of ZrO2/TiO2/Fe3O4 ternary nanocomposite. The ZrO2/TiO2/Fe3O4 nanocomposite was characterized by different techniques including XRD, EDX, SEM, BET, FTIR, XPS, EELS, and Photoluminescence (PL). The FTIR analysis of ZrO2/TiO2/Fe3O4 photocatalyst showed strong peaks in the range of 450 to 700 cm−1, which represent stretching vibrations of Zr–O, Ti–O, and Fe–O. The results of FTIR and XRD, XPS analyses and PL spectra confirmed that the solid-state dispersion method produced ZrO2/TiO2/Fe3O4 nanocomposites. The EELS analysis confirmed the pure samples of Fe3O4, TiO2 and ZrO2. The EDAX analysis showed that the Zr:Ti:Fe atomic ratio was 0.42:2.08:1.00. The specific surface area, pores volume and average pores size of the photocatalyst were obtained 280 m2/g, 0.92 cm3/g, and 42 nm respectively. Furthermore, the performance of ZrO2/TiO2/Fe3O4 nanocomposite was evaluated for naproxen removal using the response surface method (RSM). The four parameters such as NPX concentration, time, pH and catalyst concentration was investigated. The point of zero charge of the photocatalyst was 6. The maximum and minimum degradation of naproxen using photocatalyst were 100% (under conditions: NPX concentration = 10 mg/L, time = 90 min, pH = 3 and catalyst concentration = 0.5 g/L) and 66.10% respectively. The stability experiment revealed that the ternary nanocatalyst demonstrates a relatively higher photocatalytic activity after 7 recycles.

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“…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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Magnetic Fe3O4@TiO2 nanocomposites to degrade bisphenol A, one emerging contaminant, under visible and long wavelength UV light irradiation

Cited by 26 publications

References 54 publications

Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Photocatalytic activity of ZrO2/TiO2/Fe3O4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology

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

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Magnetic Fe3O4@TiO2 nanocomposites to degrade bisphenol A, one emerging contaminant, under visible and long wavelength UV light irradiation

Cited by 26 publications

References 54 publications

Synthesis and Applications of Green Synthesized TiO2 Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Synthesis and Applications of Green Synthesized TiO2 Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Photocatalytic activity of ZrO2/TiO2/Fe3O4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology

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

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Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity

Synthesis and Applications of Green Synthesized TiO₂ Nanoparticles for Photocatalytic Dye Degradation and Antibacterial Activity