One single-step synthesis of multifunctional methylene blue-coated magnetite nanoparticles

Martínez, Marta; Reyman, D.; Crespo, P.; Morales, M.P.; Herrasti, P.

doi:10.1007/s11051-011-0602-x

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…Similarly, a comparative FT-IR spectra are shown in Figure c contains the signature peaks of MB , (as highlighted) (Figure c-i) at 1597 cm –1 which is associated with the stretching vibration of CC group. The peaks at 1353 and 1339 cm –1 relates to the C–N(CH 3 ) 2 and CS + stretching modes.…”

Section: Resultsmentioning

confidence: 92%

Pollutant Soot for Pollutant Dye Degradation: Soluble Graphene Nanosheets for Visible Light Induced Photodegradation of Methylene Blue

Singh

Khare

Verma³

et al. 2017

ACS Sustainable Chem. Eng.

101

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The findings presented here offer a new approach for the environmental application of pollutant soot somewhat like utilizing a pollutant material for degrading the other pollutant material. Herein, a simpler approach is described for the isolation of two-dimensional graphitic materials as water-soluble graphene nanosheets (wsGNS) from the globally identified dirty−dangerous black pollutant particulate matter as black carbon (BC) from the petrol soot. The asisolated wsGNS are further employed for the photocatalytic degradation of toxic dye such as methylene blue (MB) under the influence of visible light irradiation. The photodegradation performance of wsGNS compared to insoluble graphene nanosheets (GNS) showed ∼11 times faster degradation rate within ∼90 min of visible light exposure (60 W tungsten bulb). The insights of the aqueous phase photodegradation of MB by the system of MB-wsGNS were studied by different chemical characterization techniques including nuclear magnetic resonance spectroscopy, high-performance liquid chromatography, Raman, and fourier transform infrared spectroscopy. Furthermore, we have checked the regeneration efficiency of wsGNS, which was still at its higher value even after five cycles of recycling testing.

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Section: Resultsmentioning

confidence: 92%

Pollutant Soot for Pollutant Dye Degradation: Soluble Graphene Nanosheets for Visible Light Induced Photodegradation of Methylene Blue

Singh

Khare

Verma³

et al. 2017

ACS Sustainable Chem. Eng.

101

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“…Surface modification has been widely used as a feasible solution to overcome the limitations. Different coating layers for magnetite nanoparticles have been successfully applied for the purpose, including 3−glycidoxypropyltrimethoxisilane [22], multi-wall carbon nanotubes [23], methylene blue [24] and silica [17]. Silica appears to be the most promising coating layers from the viewpoint of its reliable chemical stability, high surface area and facile surface modification [25].…”

Section: Introductionmentioning

confidence: 99%

Silica-coated magnetite nanoparticles prepared by the one-step electrochemical method for dye removal

Setyawan

Widiyastuti

Mahmudi

et al. 2018

J. Pow. Tech. Adv. Funct. Mater.

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Abstract:In this paper, the synthesis of silica-coated magnetite nanoparticles using a one-step electrochemical method and their application for dye removal are presented. In this method, pure iron in a dilute aqueous sodium silicate solution that served as a silica precursor was electro-oxidized. The silica-coated magnetite nanoparticles produced by this method is nearly spherical with the size of approximately 10 nm and follows the spinel structure of Fe3O4. The silica-coated magnetite nanoparticles exhibit nearly superparamagnetic properties and excellent performance to remove methylene blue from wastewater. The adsorption capacity of the nanoparticles was approximately 24.2 mg methylene blue/g adsorbent, which was much higher than that of pure magnetite nanoparticles (1.1 mg methylene blue/g adsorbent). Also, the percentage removal was higher than 90% with the initial concentration of methylene blue up to 40 mg/L. It can be regenerated and reused with an only slight reduction in percentage removal.

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“…55 In FTIR studies, shown in Figure 9a characteristic peaks of MB were observed at 1600, 1356, 1144, and 1065 cm −1 for CC group, C−N(Me) 2 group, C−N bending, and C−S−C stretching, respectively, 56 and the band at 3425 cm −1 was for the O−H stretching. As the photodegradation process continued, the FTIR patterns changed, where signature peaks of MB 57 disappeared. The presence of the peak around 1640 cm −1 in the products ensured the presence of the CC group and 1071 cm −1 also indicated the C−S−C stretching present in the product (Figure 9b-c).…”

Section: Resultsmentioning

confidence: 99%

Efficient Fluoride Removal and Dye Degradation of Contaminated Water Using Fe/Al/Ti Oxide Nanocomposite

et al. 2019

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The trimetallic Fe/Al/Ti (1:1:1) nanocomposite (FAT), synthesized by an adaptable tuned chemical route, offers a new approach for water treatment, for example, the de-fluoridation and photodegradation soluble dye methylene blue (MB) at pH 7. FAT acted as a good fluoride scavenger in the presence of other co-ions and within a widespread pH range (pH 2–11). The photodegradation efficiencies were >90% for different concentrations of MB solutions. The characterization of FAT includes thermogravimetric analysis, X-ray diffraction, Fourier transform-infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and ζ-potential analysis. Furthermore, the regeneration efficiencies of both the water treatments were checked, where the removal efficiency was not hampered significantly even after five batches. Spectroscopic techniques were adopted to perform the kinetic studies and to propose the probable mechanistic paths.

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One single-step synthesis of multifunctional methylene blue-coated magnetite nanoparticles

Cited by 8 publications

References 29 publications

Pollutant Soot for Pollutant Dye Degradation: Soluble Graphene Nanosheets for Visible Light Induced Photodegradation of Methylene Blue

Pollutant Soot for Pollutant Dye Degradation: Soluble Graphene Nanosheets for Visible Light Induced Photodegradation of Methylene Blue

Silica-coated magnetite nanoparticles prepared by the one-step electrochemical method for dye removal

Efficient Fluoride Removal and Dye Degradation of Contaminated Water Using Fe/Al/Ti Oxide Nanocomposite

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