Enhanced visible light-responsive photocatalytic activity of LnFeO{sub 3} (Ln = La, Sm) nanoparticles by synergistic catalysis

Journal Article · Sat Feb 01 04:00:00 EST 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2013.10.027· OSTI ID:22345197

Li, Li ^[1]; Wang, Xiong ^[1]; Zhang, Yange ^[2]

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1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (China)
2. Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang 461000 (China)

Highlights: • LnFeO{sub 3} (Ln = La, Sm) nanoparticles were prepared by a facile sol–gel method. • The samples exhibit superior visible-light-responsive photocatalytic activity. • Synergistic effect will enhance the photodegradation of RhB under visible light. - Abstract: LnFeO{sub 3} (Ln = La, Sm) nanoparticles were prepared by a facile sol–gel method with assistance of glycol at different calcination temperatures. The as-synthesized LnFeO{sub 3} was characterized by X-ray diffraction, transmission electron microscopy, differential scanning calorimeter and thermogravimetric analysis, and UV–vis absorption spectroscopy. The photocatalytic behaviors of LnFeO{sub 3} nanoparticles were evaluated by photodegradation of rhodamine B under visible light irradiation. The results indicate that the visible light-responsive photocatalytic activity of LnFeO{sub 3} nanoparticles was enhanced remarkably by the synergistic effect between the semiconductor photocatalysis and Fenton-like reaction. And a possible catalytic mechanism was also proposed based on the experimental results.

• OSTI ID: 22345197
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 50; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
CALCINATION
GLYCOLS
IRRADIATION
NANOPARTICLES
PHOTOCATALYSIS
SOL-GEL PROCESS
THERMAL GRAVIMETRIC ANALYSIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION