Unlocking the Potential of Chemically Modified Carbon Gels in Gallic Acid Adsorption.

ABSTRACT: This study deals with the preparation of adsorbents from a commercial xerogel by chemically modifying its surface with concentrated mineral acids and alkali metal chlorides, their physicochemical characterization, and their use as adsorbents for gallic acid in aqueous solution. Although there are publications on the use of carbon xerogels as adsorbents, we propose and study simple modifications that can change their chemical properties and, therefore, their performance as adsorbents. The adsorbate of choice is gallic acid and, to our knowledge, there is no history of its adsorption with carbon xerogels. The prepared adsorbents have a high specific surface area (347-563 m² g^-1), better pore development for samples treated with alkali metal chlorides than with mineral a

SUBMITTER: Carvalho RC 

PROVIDER: S-EPMC10887651 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature