TY - JOUR
T1 - Advanced two-dimensional heterojunction photocatalysts of stoichiometric and non-stoichiometric bismuth oxyhalides with graphitic carbon nitride for sustainable energy and environmental applications
AU - Sridharan, Kishore
AU - Shenoy, Sulakshana
AU - Kumar, S. Girish
AU - Terashima, Chiaki
AU - Fujishima, Akira
AU - Pitchaimuthu, Sudhagar
N1 - Funding Information:
Acknowledgments: This work was supported by the Department of Science and Technology, Government of India through the DST INSPIRE Faculty project (No. IFA15 MS-41) and was funded by the MEXT Promotion of Distinctive Joint Research Center Program Grant Number JPMXP 0618217662. SP acknowledges the European Regional Development Grant for providing Ser Cymru-II Rising Star Fellowship through the Welsh Government (80761-SU-102-West).
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/3/26
Y1 - 2021/3/26
N2 - Semiconductor-based photocatalysis has been identified as an encouraging approach for solving the two main challenging problems, viz., remedying our polluted environment and the generation of sustainable chemical energy. Stoichiometric and non-stoichiometric bismuth oxyhalides (BiOX and BixOyXz where X = Cl, Br, and I) are a relatively new class of semiconductors that have attracted considerable interest for photocatalysis applications due to attributes, viz., high stability, suitable band structure, modifiable energy bandgap and two-dimensional layered structure capable of generating an internal electric field. Recently, the construction of heterojunction photocatalysts, especially 2D/2D systems, has convincingly drawn momentous attention practicably owing to the productive influence of having two dissimilar layered semiconductors in face-to-face contact with each other. This review has systematically summarized the recent progress on the 2D/2D heterojunction constructed between BiOX/BixOyXz with graphitic carbon nitride (g-C3N4). The band structure of individual components, various fabrication methods, different strategies developed for improving the photocatalytic performance and their applications in the degradation of various organic contaminants, hydrogen (H2) evolution, carbon dioxide (CO2) reduction, nitrogen (N2) fixation and the organic synthesis of clean chemicals are summarized. The perspectives and plausible opportunities for developing high performance BiOX/BixOyXz-g-C3N4 heterojunction photocatalysts are also discussed.
AB - Semiconductor-based photocatalysis has been identified as an encouraging approach for solving the two main challenging problems, viz., remedying our polluted environment and the generation of sustainable chemical energy. Stoichiometric and non-stoichiometric bismuth oxyhalides (BiOX and BixOyXz where X = Cl, Br, and I) are a relatively new class of semiconductors that have attracted considerable interest for photocatalysis applications due to attributes, viz., high stability, suitable band structure, modifiable energy bandgap and two-dimensional layered structure capable of generating an internal electric field. Recently, the construction of heterojunction photocatalysts, especially 2D/2D systems, has convincingly drawn momentous attention practicably owing to the productive influence of having two dissimilar layered semiconductors in face-to-face contact with each other. This review has systematically summarized the recent progress on the 2D/2D heterojunction constructed between BiOX/BixOyXz with graphitic carbon nitride (g-C3N4). The band structure of individual components, various fabrication methods, different strategies developed for improving the photocatalytic performance and their applications in the degradation of various organic contaminants, hydrogen (H2) evolution, carbon dioxide (CO2) reduction, nitrogen (N2) fixation and the organic synthesis of clean chemicals are summarized. The perspectives and plausible opportunities for developing high performance BiOX/BixOyXz-g-C3N4 heterojunction photocatalysts are also discussed.
KW - 2D materials
KW - Bismuth oxyhalides
KW - Graphitic carbon nitride
KW - Heterojunction
KW - Photocatalysis
UR - http://www.scopus.com/inward/record.url?scp=85103029659&partnerID=8YFLogxK
U2 - 10.3390/catal11040426
DO - 10.3390/catal11040426
M3 - Review article
AN - SCOPUS:85103029659
SN - 2073-4344
VL - 11
JO - Catalysts
JF - Catalysts
IS - 4
M1 - 426
ER -