Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 29, Issue 2, Pages 138-144Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2019.03.004
Keywords
Nanophotocatalyst; Charge separation; CO2 reduction; Pollutant degradation
Ask authors/readers for more resources
The photocatalytic activities of g-C3N4 can be significantly improved by increasing life time of the photo-generated charges. Here, in this work we introduced TiO2 as proper energy platform to accept the photo-generated electrons from g-C3N4 during photocatalysis. The nanophotocatalysts formed from the combination of a suitable amount of TiO2 nanoparticles and g-C3N4 nanosheets showed 8.75 and 4.22% enhancement in photocatalytic activities for CO2 reduction and 2-chlorophenol (2-CP) degradation under visible light illumination as compared to bare g-C3N4. Based on the surface photovoltage spectra, photoluminescence spectra and examination of formed hydroxyl radicals, it was confirmed that these enhanced photoactivities were attributed to the much-improved charge separation via the electron transfer from g-C3N4 to TiO2. From trapping experiments, it was found that hydroxyl radicals were the major species involved in the photocatalytic degradation of 2-CP. This study is helpful to synthesize efficient photocatalysts to cope with energy and environmental issues.
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