Enhanced Singlet Oxygen Generation in Oxidized Graphitic Carbon Nitride for Organic Synthesis

Hui Wang; Shenlong Jiang; Shichuan Chen; Dandan Li; Xiaodong Zhang; Wei Shao; Xianshun Sun; Junfeng Xie; Zhi Zhao; Qun Zhang; Yupeng Tian; Yi Xie

doi:10.1002/adma.201601413

Enhanced Singlet Oxygen Generation in Oxidized Graphitic Carbon Nitride for Organic Synthesis

Adv Mater. 2016 Aug;28(32):6940-5. doi: 10.1002/adma.201601413. Epub 2016 Jun 6.

Authors

Hui Wang¹, Shenlong Jiang¹, Shichuan Chen¹, Dandan Li², Xiaodong Zhang¹, Wei Shao¹, Xianshun Sun¹, Junfeng Xie¹, Zhi Zhao¹, Qun Zhang¹, Yupeng Tian², Yi Xie¹

Affiliations

¹ Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
² Department of Chemistry, Anhui University, Hefei, Anhui, 230039, P. R. China.

PMID: 27271463
DOI: 10.1002/adma.201601413

Abstract

Experimental data reveal that the incorporation of carbonyl groups into polymer matrix can significantly enhance singlet oxygen ((1) O2 ) generation and suppress production of other reactive oxygen species. Excitonic processes investigated by phosphorescence spectroscopy reveal enhanced triplet-exciton generation in the modified g-C3 N4 , which facilitate (1) O2 generation through an energy transfer process. Benefiting from this, the modified g-C3 N4 shows excellent conversion and selectivity in organic synthesis.

Keywords: graphitic-C3N4; molecular oxygen activation; organic synthesis; singlet oxygen; triplet excitons.