Magnetic Fe3O4-graphene oxide/polystyrene: Fabrication and characterization of a promising nanocomposite
Magnetic Fe3O4-graphene oxide/polystyrene: Fabrication and characterization of a promising nanocomposite
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DOI：
10.1016/j.cej.2011.05.093
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发表时间：
2011-08-01
影响因子：
15.1
通讯作者：
Majdi, M.
中科院分区：
文献类型：
--
作者：
Kassaee, M. Z.;Motamedi, E.;Majdi, M.
我们的主要目标是制备和表征一种新型的氧化石墨烯/聚苯乙烯磁性复合材料（NanoFe（3）O（4）@GO/PS）。制造通过两个步骤实现。(i)在氧化石墨烯（GO）的存在下，氯化铁（II）和氯化铁（III）的简单且有效的一锅共沉淀导致磁铁矿-GO混合纳米颗粒（NanoFe（3）O（4）@GO）的制造。(ii)通过原位乳液聚合法将纳米Fe（3）O（4）负载到聚苯乙烯（PS）上，得到纳米Fe（3）O（4）@GO/PS磁性复合材料。除了FTIR、UV-vis、XRD和SEM之外，表征包括TEM分析，其显示具有14 nm尺寸的Fe 3 O 4 Nps均匀地分布在GO纳米片和NanoFe（3）O（4）@GO/PS复合物上。Also. TGA分析证实了NanoFe（3）O（4）@GO和NanoFe（3）O（4）@GO/PS的预期热稳定性。ICP-ES分析显示分散在GO纳米片上的52-72重量%的Fe 3 〇 4 Nps的负载。最后，通过我们初步的VSM和DMTA分析，确定了通过其负载磁铁矿-GO杂化物来改善PS性能。(C)2011 Elsevier B. V.保留所有权利。
Our main goals in this work were to fabricate and characterize a novel magnetic composite of graphene oxide and polystyrene (NanoFe(3)O(4)@GO/PS). Fabrication was achieved through two steps. (i) A simple and effective one-pot co-precipitation of iron (II) and (III) chlorides, in the presence of graphene oxide (GO), resulted in the fabrication of the magnetite-GO hybrid-nanoparticles (NanoFe(3)O(4)@GO). (ii) Loading of the latter over polystyrene (PS) through in situ emulsion polymerization afforded the magnetic composite (NanoFe(3)O(4)@GO/PS). Besides FTIR, UV-vis, XRD, and SEM, characterizations included TEM analysis which showed Fe3O4 Nps with 14 nm size evenly spread over the GO nanosheets and NanoFe(3)O(4)@GO/PS composite. Also. the TGA analysis demonstrated the anticipated thermal stabilities for NanoFe(3)O(4)@GO and NanoFe(3)O(4)@GO/PS. The ICP-ES analysis showed a loading of 52-72 wt% of Fe3O4 Nps dispersed over GO nanosheets. Finally, improvement of PS properties by its loading with magnetite-GO hybrid was established through our preliminary VSM and DMTA analyses. (C) 2011 Elsevier B.V. All rights reserved.