Premium
Blast Furnace Slag of a Ferrosilicon Firm in Aswan Governorate, Upper Egypt, as an Adsorbent for the Removal of Merocyanine Dye from Its Aqueous Solution
Author(s) -
Taha Gharib Mahmoud,
Mosaed Taghreed Mahmoud
Publication year - 2010
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.200900205
Subject(s) - adsorption , chemistry , freundlich equation , ferrosilicon , aqueous solution , langmuir , chemisorption , kinetic energy , langmuir adsorption model , ground granulated blast furnace slag , blast furnace , nuclear chemistry , inorganic chemistry , organic chemistry , alloy , physics , quantum mechanics , fly ash
The adsorption potential of the blast furnace slag of a ferrosilicon firm in Aswan Governorate, Egypt, to decolorize aqueous solutions of 3‐methyl‐1‐phenylpyrazol‐5‐one 4[2] merocyanine dye ( 1 ) was investigated at room temperature. The influence of the solution pH, the quantity of adsorbent, the initial concentration of 1 , and the applied contact time were studied with the batch technique. The maximum percentage of removal of 1 was observed at pH 4. The adsorption data were better fitted by the Freundlich than by the Langmuir adsorption isotherm model, confirming the formation of monolayers of 1 on the adsorbent surface. Kinetic rate constants and the transient behavior at different initial concentrations of 1 were determined with both the Lagergren pseudo ‐first‐order and the Ho and McKay pseudo ‐second‐order kinetic models. The calculated kinetic parameters revealed that the adsorption of 1 on blast furnace slag followed a second‐order chemisorption process.