Fenton-like oxidation of Rhodamine B in the presence of two types of iron (II, III) oxide

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

“…In the present work, the high concentration of Fe 3 O 4 may have scavenged the SO 4 • − , leading to the transformation of the radical into the sulfate anion (SO 4 2− ). This scavenging effect was also observed in previous studies for the heterogeneous Fenton reaction at a high loading of Fe 3 O 4 (Xue et al, 2009a(Xue et al, , 2009b). …”

“…Fe II -bearing minerals like magnetite (Fe 3 O 4 ) were found to be the most effective catalyst as compared to the only Fe III oxides for heterogeneous catalytic oxidation of organic pollutants (Ahmad et al, 2010;Matta et al, 2007Matta et al, , 2008bXue et al, 2009bXue et al, , 2009c. In addition, Fe 3 O 4 exhibited excellent structural and catalytic stabilities.…”

Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review

“…Magnetite (Fe 3 O 4 ) (Gao et al, 2007;Xu and Wang, 2012a;Xue et al, 2009aXue et al, , 2009bZhang et al, 2009), goethite (α-FeOOH) (Lin and Gurol, 1996;Lu et al, 2002;Ortiz de la Plata et al, 2010), green rust (GR(Cl (Hanna et al, 2010), ferrous hydroxide colloids (Yan et al, 2012), pyrite (FeS 2 ) (Matta et al, 2007;Zhang et al, 2014), FeS , limonite (Souza et al, 2009), nanostructured δ-FeOOH (Pinto et al, 2012). Fe 3 O 4 /humic acid (Fe 3 O 4 /HA) (Niu et al, 2011), prussian blue modified γ-Fe 2 O 3 (PBMNPs) (Wang and Huang, 2011;Zhang et al, 2010) (Costa et al, 2008), FeO x H 2x-3 /Fe 0 , iron oxide/Fe 0 (Nie et al, 2008(Nie et al, , 2010.…”

“…Pyrite (FeS 2 ), however, can react with H 2 O 2 and leaches Fe 3+ , which is then reduced to Fe 2+ by FeS 2 , leading to the homogeneous Fenton mechanism. Structural Fe(II) has been found to have higher reactivity towards H 2 O 2 decomposition than structural Fe(III), which contributes to the accelerated oxidation of organic compounds (Costa et al, 2006;Hanna et al, 2010;Xue et al, 2009b;Yan et al, 2012), similar to the situation of a homogeneous Fenton system (Eqs. (10)- (11)).…”

Green Synthesis of Iron Nanoparticles by Aqueous Extract of Eriobotrya japonica Leaves as a Heterogeneous Fenton-like Catalyst: Degradation of Basic Red 46

“…In addition that, it was reported that, unlike the traditional Fenton's reagent where the pH values have to be lowered less than 4 and the optimum pH value was reported as. 3.0 generally [11], [23]; the reaction between iron bearing minerals and hydrogen peroxide can effectively oxidize the organic molecules at circumneutral pH [24]. Therefore, no pH adjustment was made in this study.…”