Journal
APPLIED SURFACE SCIENCE
Volume 371, Issue -, Pages 231-241Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.02.210
Keywords
Bi2O2CO3; Nitrogen doping; Oxygen vacancy; Nanosheet; Synergism; Photocatalyst
Categories
Funding
- National Natural Science Foundation of China [51102160, 51272148, 51302162]
- Fundamental Research Funds for the Central Universities [GK201402009, GK201501004]
Ask authors/readers for more resources
Single-crystalline bare Bi2O2CO3 (BOC) nanosheets with exposed {0 0 1} facets and nitrogen-doped Bi2O2CO3 (NBOC) flower-like microstructures were synthesized by a simple hydrothermal method. The nitrogen-doped Bi2O2CO3 flower-like microstructures with oxygen vacancy (UV-NBOC) were obtained by irradiating the NBOC microstructures with UV light for 2 h in ethanol. The UV-vis diffuse reflectance spectra showed that the NBOC and UV-NBOC nanosheets exhibit an obvious red shift in light absorption band compared with the pure BOC nanosheets. Rhodamine B (RhB) was chosen as a model organic pollutant to verify the influence of oxygen vacancy and nitrogen doping on the photocatalytic activity of Bi2O2CO3 under simulated solar light irradiation. Judging from the kinetics of RhB photodegradation over the synthesized samples, a synergistic effect between oxygen vacancy and nitrogen doping was found with a remarkable increase (more than 10 and 2 times) in the photocatalytic activity of UV-NBOC compared with BOC and NBOC, respectively. Moreover, the UV-NBOC also exhibited an excellent cyclability and superior photocatalytic activity toward degradation of other organic pollutants (methylene blue, Congo red, Bisphenol A) under simulated solar light irradiation. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available