Investigation of ordered mesoporous carbon potential as CO<sub>2</sub> adsorbent

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Cakman G., Ceylan S., Topcu Y., Geyikci F.

GLOBAL NEST JOURNAL, no.1, pp.102-108, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2020
  • Doi Number: 10.30955/gnj.002902
  • Journal Name: GLOBAL NEST JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Veterinary Science Database
  • Page Numbers: pp.102-108
  • Keywords: Ordered mesoporous carbon, CO2 adsorption/desorption, kinetics, ADSORPTION PERFORMANCE, DIOXIDE ADSORPTION, NANOPOROUS CARBON, SBA-15, CAPTURE, CMK-3, PRESSURE, KINETICS, ADSORPTION/DESORPTION, SILICA
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

In this study, an investigation was carried out in order to determine the potential of ordered mesoporous carbon including high ratio sucrose in its composition as a CO2 adsorbent. Structural characterizations of silica and carbon material were determined by using a scanning electron microscope (SEM), N-2 adsorption/desorption and X-ray diffraction (XRD) analysis. CO2 adsorption capacities of developed adsorbent at various temperatures (25 degrees C, 35 degrees C and 50 degrees C) were determined by using a thermogravimetric analyzer under CO2 flow. The maximum adsorption capacity was obtained as approximately 2.27 mmol g CO2 g(-1) adsorbent which was remained almost the same in the desorption process. The first order reaction kinetic model was well fitted with the experimental data. Arrhenius equation was used to calculate activation energy which was obtained as -2.86 kJ mol(-1) indicating barrier-less type adsorption. Results showed that ordered mesoporous carbon could be a potential source for an efficient and lowcost adsorbent for CO2 capture.