Nano Express

Nanoscale Research Letters

, Volume 4, Issue 9, pp 971-976

Open Access This content is freely available online to anyone, anywhere at any time.

A Two-Step Hydrothermal Synthesis Approach to Monodispersed Colloidal Carbon Spheres

  • Chuyang ChenAffiliated withKey Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern UniversitySchool of Materials Science and Engineering, University of New South Wales
  • , Xudong SunAffiliated withKey Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University Email author 
  • , Xuchuan JiangAffiliated withKey Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern UniversitySchool of Materials Science and Engineering, University of New South Wales
  • , Dun NiuAffiliated withSchool of Science, Northeastern University
  • , Aibing YuAffiliated withSchool of Materials Science and Engineering, University of New South Wales
  • , Zhigang LiuAffiliated withKey Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University
  • , Ji Guang LiAffiliated withKey Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern UniversityNational Institute for Materials Science

Abstract

This work reports a newly developed two-step hydrothermal method for the synthesis of monodispersed colloidal carbon spheres (CCS) under mild conditions. Using this approach, monodispersed CCS with diameters ranging from 160 to 400 nm were synthesized with a standard deviation around 8%. The monomer concentration ranging from 0.1 to 0.4 M is in favor of generation of narrower size distribution of CCS. The particle characteristics (e.g., shape, size, and distribution) and chemical stability were then characterized by using various techniques, including scanning electron microscopy (SEM), FT-IR spectrum analysis, and thermalgravity analysis (TGA). The possible nucleation and growth mechanism of colloidal carbon spheres were also discussed. The findings would be useful for the synthesis of more monodispersed nanoparticles and for the functional assembly.

Keywords

Two-step hydrothermal synthesis Monodispersed colloids Colloidal carbon sphere Glucose