Ferney Gonzalez-Bahamon, LuisFernando Hoyos, DiegoBenitez, NorbertoPulgarin, Cesar2011-12-162011-12-162011-12-16201110.1016/j.chemosphere.2010.11.071https://infoscience.epfl.ch/handle/20.500.14299/74459WOS:000287432100017Novel photo-Fenton catalysts were prepared by immobilizing iron species on commercial bentonite plates via two methods: (1) ion exchange reaction (Fe3+ vs. Na+) by aqueous suspension powder-clay/FeCl3 followed by plate preparation, and (2) forced hydrolysis of Fe(NO3)(3) onto a prefabricated clay plate. The last method led to a more photo-active Fe-oxide/bentonite plate. This material allowed, at a non-adjusted initial pH of 5.5 and in the presence of H2O2, the total degradation of resorcinol and 55% mineralization in 80 and 100 min of irradiation, respectively. The reached degradation percentages were correlated to the presence of dissolved iron, demonstrating that in these processes, the homogeneous photo-Fenton reactions were mainly responsible for the resorcinol elimination.Heterogeneous photo-catalysisFenton-like processWastewater treatmentIron-immobilized bentoniteIron-OxideOrange-IiHeterogeneous CatalystsAqueous-SolutionVisible-LightOxidationClayDyeAdsorptionMineralstext::journal::journal article::research article