Journal
REACTION KINETICS MECHANISMS AND CATALYSIS
Volume 125, Issue 2, Pages 1179-1190Publisher
SPRINGER
DOI: 10.1007/s11144-018-1414-0
Keywords
Boron-dopin; Nitrogen-vacancie; g-C3N4; Photocatalysis; Methylene blue
Categories
Funding
- National Key RAMP
- D Program of China [2017YFA0403600]
- National Natural Science Foundation of China [51672001, 51502002, 11404001, 51602002]
- International cooperation project of Anhui provincial department of Science and Technology [1704e1002209]
Ask authors/readers for more resources
For highly efficient photodegradation of organic pollutants, the enhancement of photocatalytic activity of metal-free photocatalyst graphitic carbon nitride (g-C3N4) under visible light irradiation is meaningful, but still challenging due to the fast recombination of photogenerated electron hole pairs, low quantum efficiency and specific surface area of pristine g-C3N4. To address these challenges, boron-doped g-C3N4 together with nitrogen-vacancies (Bd-Nv-C3N4) was designed and synthesized through a simple acid-assisted calcination of melamine without any further tedious operations. As expected, based on the synergistic effect of foreign elements doping (boron atoms doping) and intrinsic defects (nitrogen vacancies), the as-prepared novel Bd-Nv-C3N4 photocatalyst shows lower band gap, higher surface area and separation efficiency of photogenerated electron hole pairs, achieving a nearly tenfold increase of the phtocatalytic constant for methylene blue (MB) degradation compared to that of pristine g-C3N4 without nitrogen-vacancies and boron-doping. This study provides a new train of thought and method for the design and preparation of nonmetal photocatalysts with enhanced visible light irradiation photocatalytic performance.
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