Open AccessLatest progress in g-C3N4 based heterojunctions for hydrogen production via photocatalytic water splitting: a mini review
Author(s) -
Baker Rhimi,
Chuanyi Wang,
Detlef W. Bahnemann
Publication year - 2020
Publication title -
jphys energy
Language(s) - English
Resource type - Journals
ISSN - 2515-7655
DOI - 10.1088/2515-7655/abb782
Subject(s) - heterojunction , water splitting , photocatalysis , materials science , hydrogen production , graphitic carbon nitride , carbon nitride , semiconductor , fabrication , hydrogen , carbon fibers , schottky diode , nitride , schottky barrier , catalysis , photocatalytic water splitting , nanotechnology , optoelectronics , chemistry , composite number , layer (electronics) , medicine , biochemistry , alternative medicine , organic chemistry , pathology , diode , composite material
Graphitic carbon nitride based heterojunction photocatalysts have gained increasing attention in producing the clean energy source of hydrogen. Coupling carbon nitride (g-C 3 N 4 ) with other semiconductor materials or metals as co-catalysts is considered as an effective strategy to overcome the drawbacks of g-C 3 N 4 such as the quick recombination of photogenerated charges. In this review, the recent research advancements in the construction of g-C 3 N 4 -based heterojunctions as well as their different charge separation/transfer mechanisms will be systematically discussed, making special emphasis on the design and fabrication of type-II, Z-scheme, S-scheme and Schottky heterojunctions and their application towards H 2 generation from water splitting. Finally, a summary and some crucial issues, which should be further resolved for developing advanced g-C 3 N 4 -based heterojunction photocatalysts, are presented.