Journal
CRYSTENGCOMM
Volume 18, Issue 40, Pages 7796-7804Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ce01535b
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Funding
- National Natural Science Foundation of China [21276116, 21477050, 21301076, 21303074]
- Excellent Youth Foundation of Jiangsu Scientific Committee [BK20140011]
- Program for high-level innovative and entrepreneurial talents in Jiangsu Province
- Program for New Century Excellent Talents in University [NCET-13-0835]
- Henry Fok Education Foundation [141068]
- Six Talents Peak Project in Jiangsu Province [XCL-025]
- Chinese-German Cooperation Research Project [GZ1091]
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A direct CdS/BiOI Z-scheme heterojunction has been successfully synthesized via a hydrothermal method for the first time. The photocatalytic performances of as-prepared samples were evaluated by rhodamine B degradation under visible light (lambda > 420 nm) irradiation. The phase structures, morphologies and optical properties of the obtained samples were investigated by several characterization tools such as XRD, SEM, TEM, HRTEM, STEM, XPS, and UV-vis, photocurrent and PL spectroscopy. The results revealed that the CdS/BiOI Z-scheme heterojunction exhibited much higher photocatalytic activity than pure BiOI and CdS, and the sample of CdS/BiOI-2 showed the best activity among all the heterostructure photocatalysts. In addition, the ESR spectrum indicated that. O-2(-) and e(-) were the main active species for the photocatalytic degradation of RhB in our experiment.
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