Activated carbon-supported CuO nanoparticles: a hybrid material for carbon dioxide adsorption

  • Cansu Boruban
  • Emren Nalbant Esenturk
Research Paper


Activated carbon-supported copper(II) oxide (CuO) nanoparticles were synthesized by simple impregnation method to improve carbon dioxide (CO2) adsorption capacity of the support. The structural and chemical properties of the hybrid material were characterized by scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic absorption spectroscopy (AAS), and Brunauer-Emmett-Teller (BET) analyses. The analyses showed that CuO nanoparticles are well-distributed on the activated carbon surface. The CO2 adsorption behavior of the activated carbon-supported CuO nanoparticles was observed by thermogravimetric analysis (TGA), temperature programmed desorption (TPD), Fourier transform infrared (FTIR), and BET analyses. The results showed that CuO nanoparticle loading on activated carbon led to about 70% increase in CO2 adsorption capacity of activated carbon under standard conditions (1 atm and 298 K). The main contributor to the observed increase is an improvement in chemical adsorption of CO2 due to the presence of CuO nanoparticles on activated carbon.


Copper oxide nanoparticle Activated carbon Carbon dioxide adsorption CO2 nostructured sorbents 



We acknowledge Assoc. Prof. Okan Esenturk for guidance in FTIR measurements, Prof. Jale Hacaloglu and Esra Özdemir for access to TGA instrument and help on TPD measurements, and Prof. Aysen Yilmaz for access to XRD instrument in METU Department of Chemistry. We acknowledge Ferdi Karadas and Satya Vijaya Kumar for help on the CO2 adsorption measurements in Bilkent University Department of Chemistry. We also acknowledge the support from METU-BAP Project: BAP-07-02-2014-007-442.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflicts of interest.

Supplementary material

11051_2018_4139_MOESM1_ESM.docx (2.8 mb)
ESM 1 SEM, back scattered SEM images and EDX spectrum of CuO-AC system, AC and single CuO NP on AC, survey and C1s XPS spectrum of CuO-AC system, BET graphs and N2 adsorption isotherms, table showing amounts of CO2 adsorbed on bare AC and CuO-AC system, regeneration data of CuO-AC system and brief explanation on quantitative analysis of CO2 adsorption by FTIR analysis. (DOCX 2883 kb)


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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of ChemistryMiddle East Technical UniversityAnkaraTurkey
  2. 2.Micro and Nanotechnology ProgramMiddle East Technical UniversityAnkaraTurkey

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