Hydrothermal synthesis of cerium titanate nanorods and its application in visible light photocatalysis

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Materials Research Bulletin

OSTI ID:22420737

Liu, H. D.; Lin, N.

Highlights: • Cerium titanate nanorods have been synthesized by a simple hydrothermal process. • The size of the cerium titanate nanorods can be controlled by growth conditions. • Cerium titanate nanorods exhibit good photocatalytic activities for methyl blue. - Abstract: Cerium titanate nanorods have been prepared via a hydrothermal process using sodium dodecyl sulfate (SDS) as the surfactant. The cerium titanate nanorods have been analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and ultraviolet–visible (UV–vis) diffuse reflectance spectrum. XRD shows that the nanorods are composed of CeTi{sub 21}O{sub 38} phase. Electron microscopy observations indicate that the nanorods have good single crystalline nature. The diameter and length of the nanorods are about 50–200 nm and 1–2 μm, respectively. Cerium titanate nanorods have a band gap of 2.65 eV. The photocatalytic activities of the nanorods have been investigated by degrading methylene blue (MB) under visible light irradiation. MB solution with the concentration of 10 mg L{sup −1} can be degraded totally with the irradiation time increasing to 240 min. Cerium titanate nanorods exhibit great potential in photocatalytic degradation of MB under visible light irradiation.

• OSTI ID: 22420737
• Journal Information: Materials Research Bulletin, Vol. 61; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERIUM COMPOUNDS
CONCENTRATION RATIO
CRYSTAL GROWTH
ENERGY GAP
EV RANGE
HYDROTHERMAL SYNTHESIS
IRRADIATION
METHYLENE BLUE
MONOCRYSTALS
NANOSTRUCTURES
PHOTOCATALYSIS
SCANNING ELECTRON MICROSCOPY
SPECTRAL REFLECTANCE
SULFATES
TITANATES
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
VISIBLE RADIATION
X-RAY DIFFRACTION