CoFe2O4/TiO2 nanocatalysts for the photocatalytic degradation of Reactive Red 120 in aqueous solutions in the presence and absence of electron acceptors
Panneerselvam Sathishkumar, Ramalinga Viswanathan Mangalaraja, Sambandam Anandan, Muthupandian Ashokkumar
Chemical Engineering Journal | ELSEVIER SCIENCE SA | Published : 2013
Magnetic CoFe2O4 and CoFe2O4/TiO2 nanocatalysts were prepared by a co-precipitation method in which CoFe2O4 induced the formation of thermodynamically more stable rutile phase of TiO2. The structural and elemental analyses confirmed the formation of CoFe2O4 and CoFe2O4/TiO2 nanocatalysts and the specific atomic ratios of Ti, Co, Fe, and O in these catalysts. The presence of Co2+ and Fe3+ cations in its oxide forms on the surface of TiO2 led to visible light absorption in the wavelength range 550-650nm. The band gap calculated by Tauc approach showed ∼3.2, 1.1 and 2.8eV for TiO2, CoFe2O4 and CoFe2O4/TiO2 nanocatalysts, respectively. The photocatalytic degradation of Reactive Red 120 (RR120) w..View full abstract
Awarded by CSIR, New Delhi (CSIR)
Awarded by FONDECYT Postdoctorado Project, Government of Chile, Santiago
SA thanks CSIR, New Delhi for the sanction of major research fund (CSIR reference No. 02(0021)/11/EMR-II). PS would like to thank FONDECYT Postdoctorado Project No.: 3120095, Government of Chile, Santiago, for financial assistance.