Photocatalytic activity of La3+-doped TiO2 synthesized via sol-gel method
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ice Publishing
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
La3+-doped TiO2 samples were synthesized via sol-gel method using titanium tetraisopropoxide as inorganic precursor. The X-ray diffraction, scanning electron microscopy, X-ray phototoelectron spectroscopy (XPS) and nitrogen adsorption measurements were used to characterize the samples. Doping with La3+ inhibited the transformation of anatase phase to rutile during calcination treatment and the growth of crystallite size. XPS analysis confirmed the presence of La3+ in the form of La2O3 on the surface of TiO2. The photocatalytic activity of La3+-doped TiO2 samples was investigated in terms of decolorization and degradation efficiencies of Acid Orange 7 (AO7) dye. It was found that doping with La3+ enhanced the photocatalytic activity of TiO2. The performance of doped samples was also evaluated using synthetic dye-bath effluent of AO7. Solar-driven La3+-doped TiO2 photocatalysis was found significantly efficient for the decolorization and degradation of AO7.
Açıklama
Anahtar Kelimeler
characterization, doping, photocatalysts
Kaynak
Nanomaterials and Energy
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
2
Sayı
3
