10.6084/m9.figshare.7049285.v1 Xue Li Xue Li Dong Wang Dong Wang Shuo Zhang Shuo Zhang Evaluation of Fe-Functionalized 4A Zeolite as Ozone Catalyst for an Enhancement of Hydroxyl Radical Pathway in a Multiphase Reactor Taylor & Francis Group 2018 4A Zeolite catalytic ozonation hydroxyl radical iron doping lewis acidity 2018-09-05 16:06:45 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Evaluation_of_Fe-Functionalized_4A_Zeolite_as_Ozone_Catalyst_for_an_Enhancement_of_Hydroxyl_Radical_Pathway_in_a_Multiphase_Reactor/7049285 <p>Iron doping 4A zeolite (Fe-4A) was prepared and demonstrated as ozone catalyst to enhance hydroxyl radical (HO·) pathway. Fe-4A composites with different iron load were characterized, and the catalytic effects were discussed dealing with <i>para</i>-chlorobenzoic acid (p-CBA), atrazine (ATZ), and oxalic acid (OA) as model compounds. Results showed that Fe-4A/ozone system promoted the production of HO·, which was in-line with the strength of Lewis acidity that might have accelerated ozone-to-HO· transformation. Modeled R<sub>CT</sub> value validated the enhanced HO· exposure during catalysis that was more evident for 4%-Fe-4A. The Fe-4A exhibited structural stability and allows repeated use after facile regeneration.</p>