Occurrence of widely prescribed antiviral drug, Acyclovir (ACV) has been reported in surface water bodies across the globe. Ecotoxicological effects of ACV necessitate its removal from water/wastewater. In the present study, Fe+3 impregnated granular activated carbon (Fe-AC) was used as a solid catalyst using wet catalytic-peroxide oxidation (WCPO) of ACV. Fe-AC samples were synthesized by impregnation of 0.15-2 M FeCl3 onto activated carbon using wet impregnation technique and their catalytic performance was tested. Since, ionic Fe is lost from the Fe based catalysts due to leaching during the reaction, leaching studies were also performed. Loss of iron from the catalyst through leaching was found minimum in case of 0.15 M Fe-AC. Due to its comparable catalytic performance with other Fe-AC samples, it was considered optimum. Synthesized Fe-AC samples were characterized using FESEM and EDS and catalyst performance parameters along with thermodynamic parameters of Fe-AC/H2O2 system for removal of ACV were also estimated. WCPO removed ACV completely in 25 min at natural pH showing that it is superior to adsorption for removal of ACV. WCPO was found to be both reaction and diffusion controlled and activation energy indicated reaction rate to be quick. ACV oxidation-degradation reaction was found to be pseudo-first order.

Removal of Acyclovir using wet catalytic-peroxide oxidation and its comparison with adsorption

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.