Surface functionalization methodologies on activated carbons and their benzene adsorption

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The present work reports the effect of different functionalization methodologies on surface modification of porous carbon and its efficacy for benzene adsorption. The virgin and surface-modified adsorbents were characterized by FTIR, N2 sorption analysis, SEM, and Boehm titration. The adsorption isotherms were measured at different temperatures using a highly sensitive magnetic suspension microbalance. At lower benzene concentration, the virgin carbon was found to possess reasonable adsorption capacity, while at higher benzene concentration, the surface-modified carbon tends to perform better. The maximum benzene adsorption capacity at 25 °C and vapor pressure of 90 mbar is as follows: 467 mg/g (NORIT-AC), 227 mg/g (AC-APS (1 M)), 388 mg/g (Norit-AC-HT), 492 mg/g (AC-HNO3), and 531 mg/g (AC-H2SO4).

Original languageBritish English
Pages (from-to)419-426
Number of pages8
JournalCarbon Letters
Issue number3
StatePublished - Jun 2021


  • Adsorbents
  • Adsorption
  • Benzene
  • Characterization
  • Porous carbon


Dive into the research topics of 'Surface functionalization methodologies on activated carbons and their benzene adsorption'. Together they form a unique fingerprint.

Cite this