Journal
NANOTECHNOLOGY
Volume 27, Issue 35, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/27/35/355402
Keywords
g-C3N4; CdS hollow spheres; photocatalysis
Funding
- Natural Science Foundation of Hubei Province [2013CFA089]
- University Scientific Technology Research Program of Guangxi Zhuang Autonomous Region Education Department [KY2015YB362]
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CdS hollow spheres (CdS HS) coupled with graphitic carbon nitride (g-C3N4) photocatalysts are synthesized and characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflection spectroscopy (DRS), x-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and photoluminescence spectroscopy (PL). The effect of CdS content on CdS HS/g-C3N4 activity is investigated by. the degradation of Rhodamine B (RhB). The sample of 20 wt% CdS content shows the best photocatalytic performance under visible-light irradiation, with the corresponding RhB degradation rate reaching 97.3%. The excellent photoactivity of CdS HS/g-C3N4 is attributed to the synergistic effect of g-C3N4 and CdS HS. A possible photocatalytic mechanism of the CdS HS/g-C3N4 composite is proposed and corroborated by PL.
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