• Aqueous colloids of graphene oxide nanosheets by exfoliation of graphite oxide without ultrasonication

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      https://www.ias.ac.in/article/fulltext/boms/034/01/0025-0028

    • Keywords

       

      Graphite oxide; graphene oxide; magnetic stirring; atomic force microscopy.

    • Abstract

       

      Aqueous colloids of graphene oxide nanosheets were produced from exfoliation of graphite oxide using a magnetic stirrer and heat treatment in the absence of ultrasonication. Laser particle measurements showed that the particle size distribution of graphite oxide dispersed in de-ionized water was significantly influenced by treatment time indicating an increasing exfoliation level of graphite oxide. Atomic force microscopy (AFM) confirmed that single-layer graphene oxide nanosheets with a thickness of ∼1 nm were obtained after 72 h of magnetic stirring and heat treatment. These findings provide a new methodology for preparation of single-layer graphene oxide nanosheet colloids.

    • Author Affiliations

       

      Tian-You Zhang1 Dong Zhang1

      1. School of Materials Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
    • Dates

       
  • Bulletin of Materials Science | News

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