Reduced Graphene Oxide-Hybridized Polymeric High-Internal Phase Emulsions for Highly Efficient Removal of Polycyclic Aromatic Hydrocarbons from Water Matrix,Langmuir

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Reduced Graphene Oxide-Hybridized Polymeric High-Internal Phase Emulsions for Highly Efficient Removal of Polycyclic Aromatic Hydrocarbons from Water Matrix
Langmuir ( IF 3.7 ) Pub Date : 2018-03-04 00:00:00 , DOI: 10.1021/acs.langmuir.8b00005
Yipeng Huang ₁ , Wenjuan Zhang ₁ , Guihua Ruan _{1,

2} , Xianxian Li ₁ , Yongzheng Cong _{1,

2} , Fuyou Du _{1,

2} , Jianping Li _{1,

2}

Affiliation

Reduced graphene oxide (RGO)-hybridized polymeric high-internal phase emulsions (RGO/polyHIPEs) with an open-cell structure and hydrophobicity have been successfully prepared using 2-ethylhexyl acrylate and ethylene glycol dimethacrylate as the monomer and the cross-linker, respectively. The adsorption mechanism and performance of this RGO/polyHIPEs to polycyclic aromatic hydrocarbons (PAHs) were investigated. Adsorption isotherms of PAHs on RGO/polyHIPEs show that the saturated adsorption capacity is 47.5 mg/g and the equilibrium time is 8 h. Cycling tests show that the adsorption capacity of RGO/polyHIPEs remains stable in 10 adsorption–desorption cycles without observable structure change in RGO/polyHIPEs. Moreover, the PAH residues in water samples after being purified by RGO/polyHIPEs are lower than the limit values in drinking water set by the European Food Safety Authority. These results demonstrate that the RGO/polyHIPEs have great potentiality in PAH removal and water purification.

中文翻译：

高效还原去除水基质中多环芳烃的还原型氧化石墨烯-杂化聚合物高内相乳液

使用丙烯酸2-乙基己酯和乙二醇二甲基丙烯酸酯分别作为单体和交联剂，已成功制备了具有开孔结构和疏水性的还原型氧化石墨烯（RGO）杂化聚合物高内相乳液（RGO / polyHIPEs）。。研究了该RGO / polyHIPEs对多环芳烃（PAHs）的吸附机理和性能。PAHs在RGO / polyHIPEs上的吸附等温线表明，饱和吸附容量为47.5 mg / g，平衡时间为8 h。循环测试表明，RGO / polyHIPEs的吸附能力在10个吸附-解吸循环中保持稳定，而RGO / polyHIPEs的结构却未观察到变化。而且，经RGO / polyHIPE纯化后的水样中的PAH残留量低于欧洲食品安全局设定的饮用水限值。这些结果表明，RGO / polyHIPEs在去除PAH和水净化方面具有巨大潜力。

更新日期：2018-03-04

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