TY - JOUR
T1 - Synthesis of Co2+-doped Fe2O3 photocatalyst for degradation of pararosaniline dye
AU - Suresh, R.
AU - Giribabu, K.
AU - Manigandan, R.
AU - Mangalaraja, R. V.
AU - Solorza, Jorge Yanez
AU - Stephen, A.
AU - Narayanan, V.
N1 - Publisher Copyright:
© 2017 Elsevier Masson SAS
PY - 2017/6/1
Y1 - 2017/6/1
N2 - In this paper, x (=2, 5, 7 and 10mol%) Co2+-doped Fe2O3 (xCo:Fe2O3) nanoparticles with enhanced photocatalytic activity have been reported. xCo:Fe2O3 nanoparticles were successfully prepared by co-precipitation followed thermal decomposition method. The structural, optical and morphological properties of the prepared samples were studied by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), diffuse reflectance (DR) UV–visible absorption spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The obtained results revealed that Co2+ ions were well doped within the lattices of Fe2O3. Also, Co2+ ions suppress the formation of the most stable α- Fe2O3 and stabilize less stable γ-Fe2O3 at 450 °C. The photocatalytic activity of xCo:Fe2O3 was examined by using pararosaniline (PR) dye. It was found that photocatalytic degradation of PR depends on dopant concentration (Co2+ ions). Relatively, the highest photocatalytic activity was observed for 5%Co:Fe2O3 nanoparticles. The plausible photocatalytic degradation pathway of PR at xCo:Fe2O3 surface has also been proposed.
AB - In this paper, x (=2, 5, 7 and 10mol%) Co2+-doped Fe2O3 (xCo:Fe2O3) nanoparticles with enhanced photocatalytic activity have been reported. xCo:Fe2O3 nanoparticles were successfully prepared by co-precipitation followed thermal decomposition method. The structural, optical and morphological properties of the prepared samples were studied by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), diffuse reflectance (DR) UV–visible absorption spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The obtained results revealed that Co2+ ions were well doped within the lattices of Fe2O3. Also, Co2+ ions suppress the formation of the most stable α- Fe2O3 and stabilize less stable γ-Fe2O3 at 450 °C. The photocatalytic activity of xCo:Fe2O3 was examined by using pararosaniline (PR) dye. It was found that photocatalytic degradation of PR depends on dopant concentration (Co2+ ions). Relatively, the highest photocatalytic activity was observed for 5%Co:Fe2O3 nanoparticles. The plausible photocatalytic degradation pathway of PR at xCo:Fe2O3 surface has also been proposed.
KW - Co-doped FeO
KW - Nanoparticles
KW - Pararosaniline
KW - Photocatalyst
UR - http://www.scopus.com/inward/record.url?scp=85018266833&partnerID=8YFLogxK
U2 - 10.1016/j.solidstatesciences.2017.04.005
DO - 10.1016/j.solidstatesciences.2017.04.005
M3 - Article
AN - SCOPUS:85018266833
SN - 1293-2558
VL - 68
SP - 39
EP - 46
JO - Solid State Sciences
JF - Solid State Sciences
ER -