Synthesis of CdS hollow spheres coupled with g-C3N4 as efficient visible-light-driven photocatalysts

Chunyan Zhang; Yongfeng Lu; Qingqing Jiang; Juncheng Hu

doi:10.1088/0957-4484/27/35/355402

Synthesis of CdS hollow spheres coupled with g-C₃N₄ as efficient visible-light-driven photocatalysts

Chunyan Zhang, Yongfeng Lu, Qingqing Jiang, Juncheng Hu

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

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.

Original language	English (US)
Article number	355402
Journal	Nanotechnology
Volume	27
Issue number	35
DOIs	https://doi.org/10.1088/0957-4484/27/35/355402
State	Published - Jul 25 2016
Externally published	Yes

Keywords

CdS hollow spheres
g-CN
photocatalysis

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

Access to Document

10.1088/0957-4484/27/35/355402

Cite this

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title = "Synthesis of CdS hollow spheres coupled with g-C3N4 as efficient visible-light-driven photocatalysts",

abstract = "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.",

keywords = "CdS hollow spheres, g-CN, photocatalysis",

author = "Chunyan Zhang and Yongfeng Lu and Qingqing Jiang and Juncheng Hu",

note = "Funding Information: This work is supported by the Natural Science Foundation of Hubei Province (2013CFA089) and the University Scientific Technology Research Program of Guangxi Zhuang Autonomous Region Education Department (KY2015YB362). Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

year = "2016",

month = jul,

day = "25",

doi = "10.1088/0957-4484/27/35/355402",

language = "English (US)",

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T1 - Synthesis of CdS hollow spheres coupled with g-C3N4 as efficient visible-light-driven photocatalysts

AU - Zhang, Chunyan

AU - Lu, Yongfeng

AU - Jiang, Qingqing

AU - Hu, Juncheng

N1 - Funding Information: This work is supported by the Natural Science Foundation of Hubei Province (2013CFA089) and the University Scientific Technology Research Program of Guangxi Zhuang Autonomous Region Education Department (KY2015YB362). Publisher Copyright: © 2016 IOP Publishing Ltd.

PY - 2016/7/25

Y1 - 2016/7/25

N2 - 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.

AB - 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.

KW - CdS hollow spheres

KW - g-CN

KW - photocatalysis

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