TY - JOUR
T1 - Boosted CO desorption behaviors induced by spatial dyadic heterostructure in polymeric carbon nitride for efficient photocatalytic CO2 conversion
AU - Liu, Qiong
AU - Cheng, Hui
AU - Chen, Tianxiang
AU - Lo, Tsz Woon Benedict
AU - Ma, Jiliang
AU - Ling, Anqi
AU - Wang, Fuxian
N1 - Funding Information:
This work was funded by the National Natural Science Foundation of China (61904167), the Natural Science Foundation of Guangdong Province (2019A1515012081), the GDAS' Project of Science and Technology Development (2021GDASYL-20210102010, 2020GDASYL-20200102006), and the China Postdoctoral Science Foundation (2020M672638, 2020M670716). The authors would like to thank Qian Liu from Shiyanjia Lab (http://www.shiyanjia.com) for the support of NMR measurement.
Funding Information:
This work was funded by the National Natural Science Foundation of China ( 61904167 ), the Natural Science Foundation of Guangdong Province ( 2019A1515012081 ), the GDAS' Project of Science and Technology Development ( 2021GDASYL-20210102010 , 2020GDASYL-20200102006 ), and the China Postdoctoral Science Foundation ( 2020M672638 , 2020M670716 ). The authors would like to thank Qian Liu from Shiyanjia Lab ( http://www.shiyanjia.com ) for the support of NMR measurement.
Publisher Copyright:
© 2021
PY - 2021/10/15
Y1 - 2021/10/15
N2 - In the present contribution, a highly crystalline nano-coral matrix on amorphous polymeric carbon nitride (PCN) nanosheets are structurally crafted and identified as an efficient photocatalyst for photocatalytic CO2 reduction reaction (CRR). The modified PCN presents a unique spatial dyadic heterostructure and favorable directional charge-transfer channel, resulting in improved charge separation for CRR. Notably, DFT calculations suggest that the modified PCN possesses reduced energy barrier for CO2 reduction into CO via facile accessible of COOH intermediate and boosted CO* desorption. The as-prepared functionalized PCN materials possess a remarkable photocatalytic CO2 reduction performance, yielding CO at a rate of 486.7 μmol h−1 g−1 (i.e. 34.0 folds’ higher than pristine PCN) with a high selectivity of 98.4 %. Our strategy of designing spatial dyadic heterostructure in polymeric carbon nitride provides new insights into the architecture engineering of CRR photocatalysts for efficient CO desorption and CO2 conversion.
AB - In the present contribution, a highly crystalline nano-coral matrix on amorphous polymeric carbon nitride (PCN) nanosheets are structurally crafted and identified as an efficient photocatalyst for photocatalytic CO2 reduction reaction (CRR). The modified PCN presents a unique spatial dyadic heterostructure and favorable directional charge-transfer channel, resulting in improved charge separation for CRR. Notably, DFT calculations suggest that the modified PCN possesses reduced energy barrier for CO2 reduction into CO via facile accessible of COOH intermediate and boosted CO* desorption. The as-prepared functionalized PCN materials possess a remarkable photocatalytic CO2 reduction performance, yielding CO at a rate of 486.7 μmol h−1 g−1 (i.e. 34.0 folds’ higher than pristine PCN) with a high selectivity of 98.4 %. Our strategy of designing spatial dyadic heterostructure in polymeric carbon nitride provides new insights into the architecture engineering of CRR photocatalysts for efficient CO desorption and CO2 conversion.
KW - CO Desorption
KW - Crystalline nano-coral
KW - Photocatalytic COreduction
KW - Polymeric carbon nitride
KW - Spatial dyadic heterostructure
UR - http://www.scopus.com/inward/record.url?scp=85105511204&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2021.120289
DO - 10.1016/j.apcatb.2021.120289
M3 - Journal article
AN - SCOPUS:85105511204
SN - 0926-3373
VL - 295
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 120289
ER -