Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 255, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.117771
Keywords
Urchin-like; Layered double hydroxides; Photocatalysis; CO2 reduction; Z-scheme
Funding
- National Natural Science Foundation of China [51303083, 21673001]
- China Postdoctoral Science Foundation [2017m621708]
- Natural Science Foundation of Jiangsu Province for Distinguished Young Scholars [BK20170038]
- Fundamental Research Funds for the Central Universities [30917011310]
Ask authors/readers for more resources
A unique urchin-like CoZnAl-LDH/RGO/g-C3N4 (LDH/RGO/CN) Z-scheme photocatalyst, which is fabricated by the hydrothermal synthesis of CoZnAl-LDH and the in situ loading of RGO and g-C3N4, is developed for the photocatalytic conversion of CO2. The special spiny external surface and hollow inner cavity endow LDH/RGO/CN with a significantly enhanced light-harvesting capacity. The well-distributed g-C3N4 nanosheets on the CoZnAl-LDH nanoplates, combined with RGO as an electron mediator, constructs an excellent heterosystem with numerous interfaces, efficient charge separation and highly exposed catalytic active sites. The Z-scheme charge-transfer process promotes the oxidizability and reducibility of CoZnAl-LDH and g-C3N4. Furthermore, the synergistic effect among the components contributes to intense adsorption and chemical activation towards CO2, which reduces the reaction barrier for CO2 photoreduction. As a result, the optimized LDH/RGO/CN exhibits highly efficient and selective photocatalytic CO2 conversion to CO. The special 3D urchin-like architecture paves a new way for design of photocatalyst with ideal 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