Open AccessEFFECT OF OXIDATIVE MODIFICATION OF ACTIVATED CARBON ON SURFACE CHEMISTRY, POROSITY AND TARTRAZINE ADSORPTION
Author(s) -
Monica Mangla,
Meenakshi Goyal,
Ganga Ram Chaudhary,
M. L. Sharma
Publication year - 2020
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2020.v04i12.058
Subject(s) - tartrazine , adsorption , porosity , chemistry , surface modification , activated carbon , oxidative phosphorylation , chemical engineering , organic chemistry , chromatography , biochemistry , engineering
The surface chemistry and pore structure of porous activated carbons determine their application. Activated carbons (ACs) were modified by oxidization and degassing. The effect of oxidation and degassing on the textural properties such as surface area, pore size, pore volume, and surface chemistry was thoroughly examined by using elemental analysis, Fourier transform spectroscopy, SEM analysis, surface acidity/basicity and pHZPC measurements. The micropore volume and surface area decreases with oxidation treatment and increases on degassing. The adsorption capacity of the oxidized samples for tartrazine dye is poor than the untreated activated carbons.