Open AccessCharacterization of Metal-Impregnated Charcoal: Nitrogen Adsorption
Author(s) -
Riaz Qadeer,
Javed Hanif,
Abdul Majeed
Publication year - 1995
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361749501200202
Subject(s) - charcoal , adsorption , microporous material , chemistry , sorption , nitrogen , metal , activated charcoal , metal ions in aqueous solution , inorganic chemistry , organic chemistry
Nitrogen adsorption on metal (Ni, Cu, Zn) impregnated charcoal has been carried out at 77 K by the continuous flow method using a Quantasorb sorption system. It was observed that such metal impregnation did not contribute any extra surface area to the charcoal. The values of the surface area, micropore and total pore volumes determined from nitrogen adsorption follow the sequence Ni–charcoal < Cu–charcoal < Zn–charcoal < charcoal. Their behaviour is discussed in terms of the ionic radii of the metal ions concerned. The pore size distribution curves demonstrate the microporous nature of the charcoal, with the micropores contributing significantly to the total pore volume.