Facile synergetic dispersion approach for magnetic Fe3O4@graphene oxide/polystyrene tri-component nanocomposite via radical bulk polymerization

Liu, Peng; Zhong, Wei; Wu, Xueli; Qiu, Jianhui

doi:10.1016/j.cej.2012.12.062

Cited by 17 publications

(5 citation statements)

References 46 publications

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“…The results obtained from the XRD analysis are presented in Figure 3 for the cases of GO (Figure 3a), PFSIC1.5-15 (Figure 3b), and GO-PFSiC hybrids (Figure 3c-e). From the XRD patterns, similar diffraction peaks at 35.6°, 43.3°, 53.6°, 57.3°, and 62.8° in Figure 3b-e can be detected, which are the characteristic peaks of cubic Fe [42], indicating that the respective peaks of PFSIC1.5-15 are formed in the composites and that the PFSiC particles are distributed uniformly on the surface of graphene, which was also confirmed by the SEM images (Figure 2) [43].…”

Section: Characterizationsupporting

confidence: 67%

Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization, and Potential Application in Water Treatment

Tolkou

Zouboulis

2020

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This study presents for the first time the synthesis and characterization of GO (graphene oxide), PFSiC (polyferric silicate chloride), and hybrid GO-PFSiC derivatives, aiming to enhance synergistically the performance of coagulation, when applied for the treatment of water. The structure and the morphology of composite GO-PFSiC coagulants were studied in detail by the application of FTIR, XRD, and SEM characterization techniques. Furthermore, the proposed coagulants were applied for the treatment of simulated turbid surface water. The effects of the reagent’s dosage, pH value, and experimental/operational conditions on the coagulation efficiency, applied mainly for the removal of turbidity, were examined. The results, obtained from the FTIR and XRD measurements, showed the presence of a bond between the PFSiC and the GO surface, indicating that the PFSiC particles are distributed uniformly on the surface of graphene, which was also confirmed by the SEM images. Especially, the composite compound GO-PFSiC1.5-15-0.5 presents the most uniform distribution of iron on the surface of graphene oxide and exhibits the optimum coagulation efficiency, while it significantly reduces the turbidity for doses above 3–5 mg/L, i.e., achieving the respective legislation limit as proposed by WHO. Specifically, at the alkaline pH values (>7.9), the removal of turbidity reaches 96%. Consequently, the results of this study render these materials as potential coagulant agents for further research and applications, aiming to also achieve the co-removal of other water components.

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Section: Characterizationsupporting

confidence: 67%

Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization, and Potential Application in Water Treatment

Tolkou

Zouboulis

2020

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“…The incorporation of 2 wt% modified graphene oxide in the polymer matrix increased the storage modulus from 1808.76 to 2802.36 MPa, and thermal decomposition temperature improved from approximately 73-372°C [174]. An effective dispersion strategy was developed to prepare the well-defined magnetic Fe 3 O 4 @graphene oxide/polystyrene nanocomposite by one-pot in situ radical bulk polymerization of styrene in the presence of the Fe 3 O 4 nanoparticles and surface-modified graphene oxide [75]. The immobilization of Fe 3 O 4 nanoparticles on graphene oxide sheets not only avoids the magnetic aggregation of the magnetic nanoparticles in polymer matrices, but oleic acid molecules also adsorb onto the surfaces of the Fe 3 O 4 nanoparticles on the graphene oxide nanosheets, efficiently improving the dispersibility of the nanosheets in styrene, which produces the well-dispersed tricomponent nanocomposite.…”

Section: Polystyrenementioning

confidence: 99%

Graphene-Based Polymer Nanocomposites: Chemistry and Applications

Mogharabi

Faramarzi

2015

Advanced Structured Materials

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Graphene, a monolayer sp 2 hybridized carbon atom, received worldwide attention due to its extraordinary physical, chemical, thermal, and electrical properties. In recent years, the development of nanoscale dispersion techniques using graphene particles in a polymer matrix has been crowned a new and interesting horizon in material science. Graphene-based polymer nanocomposites reveal superior mechanical and thermal properties compared with the conventional graphite-based composites or neat polymers which are obtained through very low filler loadings in the polymer matrix. Graphene derivatives as unique nanofillers are used in the production of lightweight, low cost, and high-performance polymer nanocomposites with a wide range of applications, such as fuel cells, supercapacitors, solar cells, sensors, and lightweight gasoline tanks. This chapter reviews the preparation methods of graphene-based polymer nanocomposites, their characteristics, and their wide range of potential applications in technological fields.

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“…Daha sonra elde edilen, GO üretimi için KMnO4 (6,0 g) dahil olmak üzere konsantre H2SO4/H3PO4 (120:12 mL) karışımı içinde değiştirilmiş yöntemle yeniden oksitlendi. İkinci adım olarak, literatürdeki [44,45] yöntemi takip edilerek Fe3O4@GO kompoziti hazırlandı: Bu amaçla, 100 mL seyreltik sulu NaOH (pH 12) çözeltisine GO (40 mg) ilave edildi ve 3 saat sonike edildi. Daha sonra diyalizat nötr hale gelinceye kadar diyaliz işlemi uygulandı.…”

Section: Go Go@fe3o4 Kompozit Ve Psf-go@fe3o4 Nanokompozit Membranlar...unclassified

GO@Fe3O4 Katkılı Polimerik Kompozit Membranların Hazırlanması ve Karakterizasyonu

AKIN,

ZOR,

BİNGÖL

2023

neufmbd

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Son zamanlarda giderek artan tarımsal ve endüstriyel faaliyetler nedeniyle sentetik organik/inorganik maddeler ve metaller gibi zararlı ve zehirli kirleticilerin su kaynaklarına salınması kamuoyunda giderek artan bir endişe yaratmaktadır. Bu zehirli ve zararlı maddelerden arsenik, bazı bölgelerde su kaynakları için önemli bir tehdit oluşturmaktadır. Arsenik zehirli, kanserojen ve her yerde bulunduğundan dünya çapında içme suyundan arseniğin giderimi önemlidir. Bu nedenle, içme suyundan arsenik giderimi için basit, daha az maliyetli ve çevre dostu tekniklerin geliştirilmesi gerekmektedir. Nanomalzemeler ile membranların güçlendirilmesi son zamanlarda yaygın olarak kullanılan bir yöntem haline gelmiştir. Ayrıca nano ölçekli inorganik katkı maddelerinin seçilip eklenmesiyle hazırlanan ince film nanokompozit hibrit malzemelerin kullanılması membran teknolojisine yeni bir boyut kazandırmıştır. Bu çalışmada, Fe3O4 nanoparçacıkları ile modifiye edilmiş grafen oksit (GO) katkılı polisülfon çözeltisinin gözenekli destek malzemesi üzerine kaplanması ile yüksek geçirgenlik ve reddetme oranına sahip nanomalzeme destekli membranlar geliştirilmiştir. Hazırlanan nanokompozit malzemeler ve membranlar taramalı elektron mikroskobu (SEM), atomik kuvvet mikroskobu (AFM), X-ışını fotoelektron spekrofotometresi (XPS) ve temas açısı (CA) teknikleri kullanılarak karakterize edilmiştir. Membran performans çalışmaları saf su geçirgenliği ve arsenik reddi çalışmaları ile gerçekleştirilmiş ve hazırlanan PSf bazlı nanokompozit membranlarda farklı GO/Fe3O4 oranlarında dahil olmak üzere yüksek performans gözlemlenmiş ve %95 arsenik reddi oranına ulaşılmıştır.

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Facile synergetic dispersion approach for magnetic Fe3O4@graphene oxide/polystyrene tri-component nanocomposite via radical bulk polymerization

Cited by 17 publications

References 46 publications

Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization, and Potential Application in Water Treatment

Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization, and Potential Application in Water Treatment

Graphene-Based Polymer Nanocomposites: Chemistry and Applications

GO@Fe3O4 Katkılı Polimerik Kompozit Membranların Hazırlanması ve Karakterizasyonu

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