Journal
MATERIALS & DESIGN
Volume 186, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2019.108371
Keywords
Photocatalysis; Porous aromatic frameworks; Scholl reaction
Categories
Funding
- Jilin University Key Laboratory of Automobile Materials of Ministry of Education [45119031B028]
- National Natural Science Foundation of China [U1607122, 51874145]
- Qinghai Basic Program [2017-ZJ-705]
- Open Foundation of State Key Laboratory of Mineral Processing
- China Ocean Mineral Resources R&D Association (COMRA) Special Foundation [DY135-R2-1-01, DY135-46]
- China Ocean Mineral Resources University co-construction project - funds for new materials [SXGJSF2017-3]
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Porous aromatic framework (PAF) materialswith pi-pi conjugation system based on Scholl reaction were found to exhibit satisfying photocatalytic performance, that can successfully degrade Rhodamine B (RhB) and colorless phenol. By selecting differentmultiple-phenyl building blocks, six kinds of PAF materials named as P-BP materials were successfully constructed by Scholl reaction, which exhibit not only photocatalytic ability, but also moderate specific surface areas, wide solar spectrum coverage, and good thermal and chemical stabilities. Depending on their different building block selections, the photocatalytic performance can be adjusted. The P-BP-DPA was found to exhibit the highest photocatalytic performance with 100% and 50% degradation rate for RhB and phenol in 300 min, respectively. Free radical trapping experiments showed that the photocatalytic activity originated from the strong oxidation capability of photogenerated holes. The band structure of such group of materials can be readily adjusted. With different monomers, their band gaps can be tuned from 1.87 to 2.36 eV, and their valence band positions were adjusted from 1.93 to 3.44 eV (vs NHE). (C) 2019 The Authors. Published by Elsevier Ltd.
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