AUTHOR=Faryabi Ehsan , Sheikhhosseini Enayatollah , Yahyazadehfar Mahdieh TITLE=Iron ore pellets based-Ag2O nanoparticles as efficient Bi-functional heterogeneous catalyst for the synthesis tetrahydrobenzo[α]xanthens in green media JOURNAL=Frontiers in Chemistry VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2025.1413080 DOI=10.3389/fchem.2025.1413080 ISSN=2296-2646