Silica nanoparticle-covered Graphene Oxide as solid-phase extraction sorbent coupled with FAAS for the determination of some of heavy metals in water sample

Seval, Kadir; Akdoğan, Abdullah

doi:10.1080/03067319.2020.1849656

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…25,26 The comparison of XRD spectra of TGO and GO showed that the (002) crystalline plane disappears and a new diffraction peak appears at 23.2 , which is due to the partial reduction of GO during the hydrothermal process.. 27 The XRD spectrum of SiO 2 shows a broad peak at 23.3 , which corresponds to the (111) crystalline plane. 28 The diffraction peak of silica covers the diffraction peak of TGO in the XRD spectrum of TGOS. This finding proves that SiO 2 is successfully grafted on the surface of TGO.…”

Section: Characterizationmentioning

confidence: 98%

The effect of silicon dioxide nanoparticle‐covered graphene oxide on mechanical properties, thermal stability and rheological performance of thermoplastic polyurethanes

Ding

Tai

Chen

et al. 2021

J of Applied Polymer Sci

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A two‐step grafting procedure has been used to graft tetraethylenepentamine (TEPA) and nano silicon dioxide (SiO2), onto graphene oxide (GO) surface. The resulting modified GO, that was TGOS, which was used as a reinforcement in thermoplastic polyurethanes (TPUs). Mechanical properties, thermal stability and rheological properties of composites were investigated. Results showed that the addition of TGOS significantly improved the mechanical properties of TPU compared with the pure TPU sample. Tensile strength and elongation at break of TPU were increased by 50.8 and 18.6%, respectively, when the addition amount was only 0.5 wt%. TG results showed that the addition of TGOS improved the heat resistance of TPU. Complex viscosity, storage modulus (G') and loss modulus (G") of TPU composites with different additions were analyzed by rheological tests, the results showed that the addition of TGOS improved the deformation resistance of TPU. Meanwhile, TPU composites present high G', G", and complex viscosity with the increase of TGOS filling amount in the low frequency region.

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Section: Characterizationmentioning

confidence: 98%

The effect of silicon dioxide nanoparticle‐covered graphene oxide on mechanical properties, thermal stability and rheological performance of thermoplastic polyurethanes

Ding

Tai

Chen

et al. 2021

J of Applied Polymer Sci

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Effect of silica‐loaded polydopamine‐modified graphene oxide nanocomposites on the corrosion resistance of polyester coatings

Ding,

Liu,

et al. 2024

J of Applied Polymer Sci

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On the basis of the complex environment of port terminals, the corrosion resistance of coatings for accompanying metal facilities is a primary factor that needs to be considered. This study prepared polydopamine‐modified graphene oxide loaded with silicon dioxide (PGO@SiO2) functional filler, which was incorporated into polyester resin (PR) by extrusion mixing. The PGO@SiO2/PR composite coating was obtained by electrostatic spraying and high‐temperature curing. Fourier transform infrared spectroscopy, x‐ray diffraction, and other results confirmed the successful preparation of the PGO@SiO2 functional filler. In addition, contact angle, adhesion, and corrosion resistance tests were performed on the composite coating. Compared with pure PR coating, the surface hydrophobicity and adhesion of the composite coating were significantly improved compared with the pure PR coating. Furthermore, the electrochemical impedance spectroscopy of the carbon steel substrate composite coating confirmed that after immersion in salt solution, the low‐frequency impedance modulus of the composite coating could be maintained at 8.63 × 108 Ω·cm2, which was more than two orders of magnitude higher than that of the pure PR coating. Thus, PGO@SiO2 could significantly enhance the corrosion resistance of the PR coating and hinder the infiltration of corrosive media. It has broad prospects for engineering applications because of its excellent anticorrosive performance.

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Development of a D-μSPE method based on curcumin-modified magnetic reduced graphene oxide nanocomposite for the determination of Trichostatin A in a biological sample

Ghanbari

Es’haghi

Khoshnood

et al. 2021

International Journal of Environmental Analytical Chemistry

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Silica nanoparticle-covered Graphene Oxide as solid-phase extraction sorbent coupled with FAAS for the determination of some of heavy metals in water sample

Cited by 5 publications

References 38 publications

The effect of silicon dioxide nanoparticle‐covered graphene oxide on mechanical properties, thermal stability and rheological performance of thermoplastic polyurethanes

The effect of silicon dioxide nanoparticle‐covered graphene oxide on mechanical properties, thermal stability and rheological performance of thermoplastic polyurethanes

Effect of silica‐loaded polydopamine‐modified graphene oxide nanocomposites on the corrosion resistance of polyester coatings

Development of a D-μSPE method based on curcumin-modified magnetic reduced graphene oxide nanocomposite for the determination of Trichostatin A in a biological sample

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