期刊
DYES AND PIGMENTS
卷 137, 期 -, 页码 322-328出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2016.11.014
关键词
Heterojunction-type photoeatalysts; Hydrogen bond composites; Photocatalytic mechanism; Degradation of rhodamine B; Copper phthalocyanine/perylene diimide derivatives
资金
- Natural Science Foundation of China [51173155, 51472214]
- Innovation Project of Yanshan University [2015XJSS015]
Among photocatalytic materials, p-n heterojunction-type photocatalysts has good photocatalytic performance under visible light irradiation. Herein, a novel Copper phthalocyanine/perylene diimide derivatives p-n heterojunction photoeatalysts based on the intermolecular hydrogen bond between pyridyl and carboxyl was designed and characterized using FT-IR, UV-vis and photoluminescence spectra, and then compared their photocatalytic performance by degradation for rhodamine B (RhB) under visible light irradiation. The hydrogen bond composites shows significant higher photocatalytic activity comparing with its parent, and the photocatalysis increased with increasing of mole fraction of perylene diimide derivatives. The change of morphology and p-n heterojunction structure are in favor of the high photocatalytic active. Furthermore, the photocatalytic mechanism was investigated by radical scavengers testing, that confirmed hydroxyl radical ((OH)-O-center dot) was the main reactive species for the degradation of RhB. (C) 2016 Elsevier Ltd. All rights reserved.
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