Journal
APPLIED SURFACE SCIENCE
Volume 573, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2021.151506
Keywords
Alcohol oxidation; Metal-free catalyst; Hydrogen peroxide production; Photocatalysis; Green chemistry
Categories
Funding
- National Natural Science Foundation of China [21902105]
- National Postdoctoral Program for Innovative Talents [BX20180203]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong [2018KQNCX221]
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The introduction of cyanide groups can enhance the efficiency of carbon nitride photocatalysts, making them perform better in oxidizing alcohols and reducing oxygen.
Porous carbon nitride photocatalysts with sufficient cyanide groups were facile fabricated through simple calcination process with cheap salt as pomgen. The introduction of cyanide groups can enhance charge separation efficiency and reductive activities of photogenerated electrons of carbon nitride. The optimized CN-S catalysts can selectively oxidize alcohols to aldehydes with broad scope as well as reduce oxygen to H2O2. The tandem strategy can photocatalytic produce H2O2 with a rate of more than 200 mu mol h(-1) g(-1) which is nearly 19 times than that without alcohols and fulfilled utilization of both photo-generated electrons and holes.
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