Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 276, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2020.118916
Keywords
Boron carbon nitrides; Photocatalysis; Oxygen activation; Organic photosynthesis; Selective oxidation
Funding
- National Natural Science Foundation of China [21861130353, U1905214, 21961142019, 21761132002, 21425309, 21703039, 21902031]
- National Key R&D Program of China [2018YFA0209301]
- National Basic Research Program of China [2013CB632405]
- Chang Jiang Scholars Program of China [T2016147]
- 111 Project [D16008]
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Light-driven selective oxidation of aromatic alcohols allows a sustainable and eco-friendly manner to convert solar energy into highly valuable aromatic aldehydes. However, the low separation and transfer efficiency of photogenerated charge carriers and the sluggish reaction kinetics seriously restrict the efficiency of the organic photosynthesis of desired compounds. Herein, a facile strategy is adopted to regulate the boron carbon nitrides (BCN) semiconductors by hydrogen reduction to precisely tune the structural and surface properties. The reduced BCN materials can effectively enhance charge separation and migration as well as promote O-2 activation and mass transfers. As a result, this BCN catalyst therefore displays a remarkable enhancement in photosynthesis of aromatic aldehydes from the alcohols with high conversion and selectivity compared to pristine BCN.
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