Ordered mesoporous carbons with various pore sizes: Preparation and naphthalene adsorption performance

Authors

  • Keliang Wang,

    1. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
    2. College of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China
    Search for more papers by this author
  • Bichun Huang,

    Corresponding author
    1. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
    2. Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters (South China University of Technology), Ministry of Education, Guangzhou 510006, China
    • College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
    Search for more papers by this author
  • Dongmei Liu,

    1. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
    Search for more papers by this author
  • Daiqi Ye

    1. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
    2. Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters (South China University of Technology), Ministry of Education, Guangzhou 510006, China
    Search for more papers by this author

Abstract

Ordered mesoporous carbons (OMCs) with tunable pores were synthesized by a soft-template method with F127 as a template and boric acid as a pore regulator agent. The prepared samples were characterized by small-angle X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and N2 adsorption–desorption. The results show that the OMCs had well ordered, two-dimensional (2D) hexagonal structures and the pore sizes were finely tunable in the range 3.4–4.7 nm when boric acid was used as the pore regulator agent. The adsorption experiments showed that the OMCs had a strong adsorption affinity to naphthalene and the maximum adsorption amount was shown to reach up to 303.2 mg/g. Furthermore, the mesopore volume between 2 and 3.5 nm of OMCs was crucial to the adsorption capacity, and OMCs with pore sizes of 2–3.5 nm were much more favorable for the naphthalene adsorption process. The adsorption isotherms of naphthalene on OMCs matched well with the Langmuir adsorption isotherm. Theoretical studies showed that the adsorption kinetics of naphthalene on OMCs accounted well for the use of the Langmuir adsorption kinetics equation. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Ancillary