• 文献标题:   Towards Novel Multifunctional Pillared Nanostructures: Effective Intercalation of Adamantylamine in Graphene Oxide and Smectite Clays
  • 文献类型:   Article
  • 作  者:   SPYROU K, POTSI G, DIAMANTI EK, KE XX, SERESTATIDOU E, VERGINADIS II, VELALOPOULOU AP, EVANGELOU AM, DELIGIANNAKIS Y, VAN TENDELOO G, GOURNIS D, RUDOLF P
  • 作者关键词:   pillared structure, adamantylamine, clay, graphene oxide, cytotoxic agent, environmental remediation
  • 出版物名称:   ADVANCED FUNCTIONAL MATERIALS
  • ISSN:   1616-301X EI 1616-3028
  • 通讯作者地址:   Univ Groningen
  • 被引频次:   14
  • DOI:   10.1002/adfm.201400975
  • 出版年:   2014

▎ 摘  要

Multifunctional pillared materials are synthesized by the intercalation of cage-shaped adamantylamine (ADMA) molecules into the interlayer space of graphite oxide (GO) and aluminosilicate clays. The physicochemical and structural properties of these hybrids, determined by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman and X-ray photoemission (XPS) spectroscopies and transmission electron microscopy (TEM) show that they can serve as tunable hydrophobic/hydrophilic and stereospecific nanotemplates. Thus, in ADMA-pillared clay hybrids, the phyllomorphous clay provides a hydrophilic nanoenvironment where the local hydrophobicity is modulated by the presence of ADMA moieties. On the other hand, in the ADMA-GO hybrid, both the aromatic rings of GO sheets and the ADMA molecules define a hydrophobic nanoenvironment where sp(3)-oxo moieties (epoxy, hydroxyl and carboxyl groups), present on GO, modulate hydrophilicity. As test applications, these pillared nanostructures are capable of selective/stereospecific trapping of small chlorophenols or can act as cytotoxic agents.