• 文献标题:   Ultrathin Hollow Graphene Oxide Membranes for Use as Nanoparticle Carriers
  • 文献类型:   Article
  • 作  者:   SMITH KB, TOMASSONE MS
  • 作者关键词:  
  • 出版物名称:   LANGMUIR
  • ISSN:   0743-7463
  • 通讯作者地址:   Rutgers State Univ
  • 被引频次:   2
  • DOI:   10.1021/acs.langmuir.6b04583
  • 出版年:   2017

▎ 摘  要

We synthesize hollow spherical particles/membrane sacks of graphene oxide loaded-with nanoparticles to be used as nanoparticles carriers, through a new method based on emulsion precipitation and sublimation of the cores. We vary the synthesis parameters, such as shear rate, pH, and graphene oxide and oil concentration ratios. Our results show a concentration dependent membrane thickness that varies between 3 and 25 nm depending on the concentration, and their mean diameters vary between 500 mu and 70 mu m. In addition, polymeric nanoparticles are loaded inside the graphene oxide shells forming core shell particles demonstrating that they can be used as carriers for nanoparticles. Our particles are characterized via laser diffraction, zeta potential, FE-SEM, TEM, BET, and AFM. Potential applications of this work include applications that benefit from core shell structures and nanoparticle carriers, including drug formulation, catalysis, and electrochemical applications.