期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 41, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202000006
关键词
catalysis; charge transfer; conjugated polymers; photochemistry; structure-property relations
资金
- National Science Foundation of China [21674129, 21376272, 21636010]
- Open Sharing Fund for the Large-scale Instruments and Equipments of Central South University [CSUZC201930, CSUZC201927]
The development of new photocatalytic platforms using novel semiconductor material is an important challenge. Herein, a sp(2) carbon-conjugated covalent triazine polymer (sp(2)c-CTP-4), featuring a vinylene bridge and extended pi-conjugation, is prepared as a highly efficient photocatalyst for degradation of methylene blue. sp(2)c-CTP-4 exhibits substantial semiconducting properties such as enhanced charge transfer and prolonged lifetime of carriers compared to its counterparts with C-N or C-C connections, likely due to its extended pi-delocalization with an unencumbered C(sic)C bridge. Moreover, benefiting from its high chemical stability, the as-made catalyst can be recycled five times with good retention of photocatalytic activity. This study provides a new pathway for constructing a robust platform for efficient photocatalysis and gives insight into the structure-property relationship of conjugated polymers.
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