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Amidoxime modification of polyacrylonitrile/Pterocladia capillacea-derived activated carbon composite for adsorption of toxic chromium from aquatic environment

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2022, 32(2), pp.513-535
  • DOI : 10.1007/s42823-021-00281-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : April 2, 2021
  • Accepted : September 7, 2021
  • Published : March 1, 2022

Shoaib Amany G. M. 1 El Nemr Ahmed 1 El Sikaily Amany 1 Masoud Mamdouh S. 2 Ramadan Mohamed S. 3

1국립해양수산연구소 환경과, NIOF, Kayet Bey, El-Anfoushy, 이집트 알렉산드리아
2Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
3Department of Chemistry, Faculty of Science, Alexandria University

Accredited

ABSTRACT

By polymerizing acrylonitrile in the presence of ammonium persulfate as an initiator and Pterocladia capillacea-activated carbon (P-AC) as a filler, a composite material polyacrylonitrile/Pterocladia capillacea-activated carbon (PAN/P- AC) was developed. By reacting hydroxylamine with the composite's nitrile groups, the prepared composite was functionalized by amidoximation. FTIR spectrometry, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Brunauer–Emmett–Teller (BET) analysis were all applied to thoroughly characterize the fabricated adsorbent. For the treatment of Cr(VI) ions from synthetic solutions, the adsorption properties of amidoximated polyacrylonitrile/Pterocladia capillacea-activated carbon (PAO/P-AC) were investigated. The pH effect, uptake kinetics, adsorption isotherms, and thermodynamics studies were used to characterize adsorption properties. As a kinetic model analysis, the data confirmed that the pseudo-second-order rate equation matched well the adsorption process. With coefficients of determination (R2) of 0.9998, the Tempkin isotherm model had the lowest error, suggesting that it is the best fitted model to describe this adsorption mechanism. Thermodynamic parameters demonstrated that Cr(VI) adsorption was endothermic.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (12) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (14) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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