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Utilization of green alga Ulva lactuca for sustainable production of meso-micro porous nano activated carbon for adsorption of Direct Red 23 dye from aquatic environment

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2022, 32(1), pp.153-168
  • DOI : 10.1007/s42823-021-00262-1
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : January 30, 2021
  • Accepted : June 1, 2021
  • Published : January 1, 2022

El Nemr Ahmed 1 Shoaib Amany G. M. 1 El Sikaily Amany 1 Ragab Safaa 1 Mohamed Alaa El-Deen A. 2 Hassan Asaad F. 2

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

Accredited

ABSTRACT

The production of macroalgae-derived adsorbent is of great importance to realize the idea of treating pollutants with invaluable renewable materials. Herein, a novel meso-micro porous nano-activated carbon was prepared from green alga Ulava lactuca in a facile way via chemical activation with zinc chloride. The resultant activated carbon possesses a significant specific surface area 1486.3 m2/g. The resulting activated carbon was characterized and investigated for the adsorption of Direct Red 23 (DR23) dye from an aqueous environment. Batch method was conducted to study the effects of different adsorption processes on the DR23 dye adsorption from water. Isotherms and kinetics models were investigated for the adsorption process of DR23 dye. It was found that the adsorption data were well fitted by Langmuir model showing a monolayer adsorption capacity 149.26 mg/g. Kinetic experiments revealed that the adsorptions of DR23 dye can be described with pseudo-second-order model showing a good correlation (R2 > 0.997). The prepared activated carbon from Ulava lactuca was exposed to a total of six regeneration experiments. The regeneration result proved that the fabricated activated carbon only loses 19% of its adsorption capacity after six cycles. These results clearly demonstrated the high ability of the obtained active carbon to absorb anionic dyes from the aqueous environment.

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 (17) 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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