期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 261, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118230
关键词
Conjugated polymers; Photocatalysts; Dibenzothiophene-S,S-dioxide; Phosphorylation; Hydrogen evolution rate
资金
- Natural Science Foundation of China [51103111]
- Education Ministry of China [NCET-12-0714]
- Educational Commission of Hubei Province of China [D20181505]
Conjugated polymers have recently emerged as encouraging metal-free photocatalysts for solar energy conversion under visible light irradiation. Unfortunately, photocatalytic activities of the current polymers are still inadequate. Herein, we present a simple but quite attractive conjugated homopolymer (PDBTSO) based a dibenzothiophene-S,S-dioxide moiety. The introduction of sulphonyl group to a polyfluorene-like backbone can cause richly available active sites and lead to the efficient separation of photoexcited charge carriers, thus yielding impressive photocatalytic performance. Furthermore, we explored a natural phosphorylation strategy for increasing photocatalytic hydrogen production over PDBTSO. Remarkably, an extremely high hydrogen evolution rate of 44.2 mmol h(-1) g(-1) was achieved with the optimum addition of K2HPO4 under visible light irradiation.
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