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Sorption of lead (II) and strontium (II) ions from aqueous solutions onto non-living Chlorella Vulgaris Alga/ Date pit activated carbon composite

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2022, 32(2), pp.495-512
  • DOI : 10.1007/s42823-021-00280-z
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : July 2, 2021
  • Accepted : August 31, 2021
  • Published : March 1, 2022

Dakroury G. A. 1 El-Shazly E. A. A. 1 Hassan H. S. 2

1Nuclear Chemistry Department, Hot Laboratories Centre, Egyptian Atomic Energy Authority
2Waste Management Department, Hot Laboratories Centre, Egyptian Atomic Energy Authority

Accredited

ABSTRACT

Heavy metal pollution has a harmful impact on human health and is regarded as a vital problem. Preparation of a novel, low cost bio-sorbent for heavy metal sorption is the main target of this research. Non-living Chlorella Vulgaris Alga/Date pit activated carbon composite (1:1), (CV/AC), is a novel bio-sorbent prepared by the wet-chemical method for sorption of Pb (II) and Sr (II) from aqueous media. The optimum pH for sorption reaction is 5 and the equilibrium time is achieved within 1 h. The sorption efficiencies are 90.5% for Pb(II) and 95.7% for Sr(II) with initial concentration Co 10 mg L–1 at 298 K. The monolayer sorption capacities of CV/AC composite at 298 K and pH = 5 were 6.34  ±  0.059, 5.97  ±  0.22 mg g–1. The saturation capacities were 98.5 and 125 mg g–1 for Pb (II) and Sr (II), respectively after 10 days. The sorption process is a spontaneous and endothermic reaction. It follows a pseudo-2nd-order mechanism. The results are suggestive of the need to adopt CV/AC composite as a potential bio-sorbent of Pb (II) and Sr (II) for waste water treatment.

Citation status

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Total Citation Counts(KCI+WOS) (8) 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 (11) 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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