期刊
APPLIED SURFACE SCIENCE
卷 367, 期 -, 页码 109-117出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.01.148
关键词
Nanoflowers; Heterojunctions; Photocatalyst; Degradation; Free templates
类别
资金
- National Natural Science Foundation of China [51262028]
- Science and Technology Support Projects of Gansu Province [1504GKCA027]
- Program for Longyuan Young Innovative Talents of Gansu Province
- Opening Project of Key Laboratory of Green Catalysis of Sichuan Institutes of High Education [LZJ1206]
- Program for Undergraduate Academic Innovative Research Team of Northwest Normal University
Carnation-like CuS nanoflowers were prepared by a mildly hydrothermal method without any surfactants or templates and further evolved into CCN-CuS p-n heterojunctions. And the as-prepared samples were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis absorption spectroscopy, Brunauer-Emmett-Teller (BET), photoluminescence (PL) and the photocurrent response. The results show that the appropriate load content of CCN is conducive to form well-morphology CCN-CuS heterojunctions. And the formation of CCN-CuS p-n heterojunctions is both beneficial to achieve higher charge separation efficiency and promote its photocatalytic performance to RhB dye without the existence of H2O2, which is commonly used as the sources of hydroxyl radicals to assist photocatalytic process. Besides, the as-synthesized 5CCN-CuS NFs show good stability and no obvious inactivation occurred after five degradation cycles runs. (C) 2016 Elsevier B.V. All rights reserved.
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