Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 259, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118085
Keywords
Photocatalysis; Carbon layer; CeO2 heterojunction; Water purity; Oxygen species
Funding
- Natural Science Foundation of China [21773315]
- Natural Science Foundation of Guangdong Province [2017A030313055]
- Pearl River S&T Nova Program of Guangzhou [201906010024]
- Innovative School Project of Guangzhou University [2823010936]
- Science Starting Foundation of Guangzhou University [69-18ZX10301]
- China Postdoctoral Science Foundation [2018M640847, 2019T120764]
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Designing and constructing effective and stable photocatalysts is the major challenge in the development of photocatalysis. Herein, we demonstrate a conceptual strategy to effectively improve the charge separation in a ternary material system (CeO2/C/SnS2), by introducing ultrathin carbon layer between CeO2 nanorods and SnS2 particles as a conductive electron transport highway. Such ternary CeO2/C/SnS2 gives rise to a largely enhanced photocatalytic removal performance of phenol (100%, 60 min), comparing with CeO2/SnS2 (50%) and CeO2 (20%). Experimental results reveal that carbon layer acts as a high work function, superior electron mobility accepts and enables a fast transportation, accelerating the photocatalytic degradation performance of phenol. Our design introduces material components to provide a dedicated charge-transport pathway, conquering the materials' intrinsic properties, providing a new perspective for water purity.
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