The Effect of Oxidative Modification of Activated Carbon on Adsorption of Aromatic Compounds from Aqueous Solutions.

ABSTRACT: Activated carbon F-400 was modified by using different oxidation agents: nitric acid, sulfuric acid, and ozone. The influence of the type of carbon surface groups on adsorption effectiveness towards selected aromatic compounds was analyzed. The commercial carbon F-400 was deashed and modified, and the obtained materials were characterized by using different techniques to determine their textural, thermal, morphological, and surface properties: low-temperature adsorption/desorption isotherms of nitrogen, scanning electron microscopy (SEM), Boehm titration, and Fourier transform infrared spectroscopy (FTIR). The adsorption properties towards four aromatic compounds, i.e., toluene, 4-nitrotoluene, nitrobenzene, and 4-nitrobenzoic acid, were evaluated based on isotherm measurements. Adsorption

SUBMITTER: Derylo-Marczewska A 

PROVIDER: S-EPMC12472693 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature