The crystal structure
of the α-Fe2O3 nanorods was investigated
by powder XRD (Bruker
D8 ADVANCE) using Cu Kα (λ = 1.5406 Å) radiation.
The morphology information of 3-D α-Fe2O3 arrays on the FTO substrate was acquired by field emission SEM (S-4800,
Hitachi). HRTEM images were acquired from a Tecnai G2 F30 microscope.
UV–visible spectra were recorded on a Varian Cary 5000 UV–visible
spectrophotometer, and diffuse reflectance spectra and transmittance
spectra were equipped with an integrating sphere. Raman measurements
were performed at room temperature on a Renishaw inVia Reflex Raman
spectrometer with 532 nm lines. XPS and UPS measurements were conducted
on an ESCALAB-250Xi photoelectron spectroscope.
of the α-Fe2O3 nanorods was investigated
by powder XRD (Bruker
D8 ADVANCE) using Cu Kα (λ = 1.5406 Å) radiation.
The morphology information of 3-D α-Fe2O3 arrays on the FTO substrate was acquired by field emission SEM (S-4800,
Hitachi). HRTEM images were acquired from a Tecnai G2 F30 microscope.
UV–visible spectra were recorded on a Varian Cary 5000 UV–visible
spectrophotometer, and diffuse reflectance spectra and transmittance
spectra were equipped with an integrating sphere. Raman measurements
were performed at room temperature on a Renishaw inVia Reflex Raman
spectrometer with 532 nm lines. XPS and UPS measurements were conducted
on an ESCALAB-250Xi photoelectron spectroscope.