Applied Catalysis B: Environmental, volume 294, pages 120257

Advantageous roles of phosphate decorated octahedral CeO2 {111}/g-C3N4 in boosting photocatalytic CO2 reduction: Charge transfer bridge and Lewis basic site

Wanqin Li
Jin Li
Fei Gao
Haiqin Wan
YU PU
Xiaoqian Wei
Chong Chen
Weixin Zou
Chengzhang Zhu
Lin Dong
Publication typeJournal Article
Publication date2021-10-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor22.1
ISSN09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
Abstract
• Phosphate modified octahedral CeO 2 {111} surface with g-C 3 N 4 were synthesized. • PO 4 3− modification improved more Lewis base sites for CO 2 adsorption/activation. • PO 4 3− acted as interfacial bridge for built-in electric field and Z-scheme formation. • P-CeO 2 /g-C 3 N 4 had excellent activity for fast charge transfer and rich active sites. For photocatalytic CO 2 reduction, directional charge-transfer channel and abundant active sites are of significance. Herein, we designed and fabricated phosphate modified octahedral CeO 2 {111} surface coupling with g-C 3 N 4 (P-CeO 2 /g-C 3 N 4 ) for photocatalytic CO 2 reduction, which had superior activity than others, i.e., P-CeO 2 , g-C 3 N 4 , CeO 2 /g-C 3 N 4 . The characterization results revealed the coordination environment of P species, as well as, the presence of hydrogen bond between phosphate and amino. Through the PO 4 3− bridge, the interfacial electrons donated from g-C 3 N 4 to CeO 2 , leading to the Z-scheme formation and fast photo-generated charge transfer. Furthermore, PO 4 3− modification increased more oxygen-containing functional groups on surface, which acted as Lewis basic sites for CO 2 reactant adsorption and activation. Therefore, under the synergistic interaction of charge-transfer channel and abundant active sites, P-CeO 2 /g-C 3 N 4 is a potential photocatalyst for CO 2 reduction.

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Li W. et al. Advantageous roles of phosphate decorated octahedral CeO2 {111}/g-C3N4 in boosting photocatalytic CO2 reduction: Charge transfer bridge and Lewis basic site // Applied Catalysis B: Environmental. 2021. Vol. 294. p. 120257.
GOST all authors (up to 50) Copy
Li W., Li J., Gao F., Wan H., PU Y., Wei X., Chen C., Zou W., Zhu C., Dong L. Advantageous roles of phosphate decorated octahedral CeO2 {111}/g-C3N4 in boosting photocatalytic CO2 reduction: Charge transfer bridge and Lewis basic site // Applied Catalysis B: Environmental. 2021. Vol. 294. p. 120257.
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TY - JOUR
DO - 10.1016/j.apcatb.2021.120257
UR - https://doi.org/10.1016/j.apcatb.2021.120257
TI - Advantageous roles of phosphate decorated octahedral CeO2 {111}/g-C3N4 in boosting photocatalytic CO2 reduction: Charge transfer bridge and Lewis basic site
T2 - Applied Catalysis B: Environmental
AU - Li, Wanqin
AU - Li, Jin
AU - Gao, Fei
AU - Wan, Haiqin
AU - PU, YU
AU - Wei, Xiaoqian
AU - Chen, Chong
AU - Zou, Weixin
AU - Zhu, Chengzhang
AU - Dong, Lin
PY - 2021
DA - 2021/10/01 00:00:00
PB - Elsevier
SP - 120257
VL - 294
SN - 0926-3373
SN - 1873-3883
ER -
BibTex
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BibTex Copy
@article{2021_Li,
author = {Wanqin Li and Jin Li and Fei Gao and Haiqin Wan and YU PU and Xiaoqian Wei and Chong Chen and Weixin Zou and Chengzhang Zhu and Lin Dong},
title = {Advantageous roles of phosphate decorated octahedral CeO2 {111}/g-C3N4 in boosting photocatalytic CO2 reduction: Charge transfer bridge and Lewis basic site},
journal = {Applied Catalysis B: Environmental},
year = {2021},
volume = {294},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.apcatb.2021.120257},
pages = {120257},
doi = {10.1016/j.apcatb.2021.120257}
}
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