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Published in:
08-11-2017
Facile synthesis of ring-like α-Fe2O3 assembly composed of small hematite particles for highly efficient photocatalysis
Published in: Journal of Materials Science: Materials in Electronics | Issue 4/2018
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Abstract
A new-type of ring-like α-Fe2O3 assembly were prepared via facile top-down etching method from hematite saucer-like nanocrystals composed of small α-Fe2O3 particles. HRTEM and BET results demonstrated that the ring-like α-Fe2O3 assembly has zigzag edge and high specific surface area, which leads to higher efficient visible-light photocatalytic performance on the degradation of cationic dye Rhodamine B (RhB). UV–Vis diffuse reflectance spectra and photocurrent responses demonstrated a narrow bandgap and higher photocurrent response of ring-like α-Fe2O3 assembly, which were helpful for absorbing photons and restraint of recombination for photogenerated charges. These characters make them the promising candidates for photocatalysis.