title: Structural modification of mordenite zeolite with Fe for the photo-degradation of EDTA.
abstract: Fe(2+) was incorporated inside mordenite through ion exchange technique in aqueous solution. The amount of Fe loading was 25-100 wt %, using FeSO(4).7H(2)O as precursor and Na-mordenite starting material Na-M. The Fe incorporated (Fe-M) thus prepared was characterized by XRD, FTIR and N(2) adsorption measurements. It was found that Fe mordenite retained the same structure as that for Na-mordenite which may indicate that Fe well dispersed into mordenite channels. BET indicated that Fe-M samples possessed higher surface area compared to the parent Na-M. Photocatalytic degradation of EDTA was carried out in presence of the prepared Fe-M catalysts. Effects of catalyst concentration and temperature were also studied. Thermodynamic parameters calculated for 50% Fe-M showed the highest catalytic activity toward EDTA degradation.
authors.affiliation: Chemistry Department, Faculty of Science (boys), Al-Azha University, Nasr city 11884, Cairo, Egypt.
authors.forename: Mostafa M
authors.initials: MM
authors.lastname: Emara
authors.forename: Amal S M
authors.initials: AS
authors.lastname: Tourky
authors.forename: Medhat M
authors.initials: MM
authors.lastname: El-Moselhy
mesh_terms: D000327:Adsorption; D000538:Aluminum Silicates / Q000737:chemistry; D002384:Catalysis; D004492:Edetic Acid / Q000737:chemistry / Q000528:radiation effects*; D007474:Ion Exchange; D007501:Iron / Q000737:chemistry*; D010782:Photolysis; D013696:Temperature; D013816:Thermodynamics; D017641:Zeolites / Q000737:chemistry*
chemical_list: D000538:Aluminum Silicates; C048397:mordenite; D017641:Zeolites; D004492:Edetic Acid; D007501:Iron