Adsorption study of Congo red dye on activated charcoal

Authors

  • Mahdi Muhammad Amer Department of computer- Faculty of chemistry - University of Misurata
  • Zubaydah baetalmal baetalmal Department of chemistry- Faculty of education - University of Misurata
  • Zubaydah the treasury baetalmal Department of chemistry- Faculty of education - University of Misurata
  • Asmaa Abdullah Abu Laifa Department of chemistry- Faculty of education - University of Misurata
  • Fatima Miftah Abshir Department of chemistry- Faculty of education - University of Misurata
  • Maryam Omar Andisha Department of chemistry- Faculty of education - University of Misurata
  • Abdul Basit Muhammad al-Qallal Department of chemistry- Faculty of education - University of Misurata

Keywords:

Adsorption isotherm, Activated carbon, Congo red dye.

Abstract

The research included studying the adsorption of congo red dye on the surface of activated carbon, where a UV-vis spectrometer was used to determine the dye concentration after adsorption. The results showed that the adsorption isotherm corresponded with S type curves according to Giles classifications. The comparison of correlation coefficients (R2 ) of the linearized form of both Freundlich and Langmuir equations indicates that the Freundlich model markedly described the adsorption of congo red on activated carbon, and the adsorption ratio increases with increasing the adsorbent dosage and with increasing the temperature, and that the adsorption process is exothermic and it occurred spontaneously.

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Published

2020-09-01

Issue

Vol. 7 No. 02 (2020): Issue 02

Section

Articles