Solvothermal synthesis of graphene-CdS nanocomposites for highly efficient visible-light photocatalyst

被引：77

作者：

Liu, Fengzhen ^{[1
,3
]}

Shao, Xin ^{[1
,2
]}

Wang, Jinqing ^{[1
]}

Yang, Shengrong ^{[1
]}

Li, Huaiyong ^{[2
]}

Meng, Xianhua ^{[2
]}

Liu, Xuehua ^{[2
]}

Wang, Min ^{[2
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Liaocheng Univ, Dept Mat Sci & Engn, Liaocheng 252059, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 551卷

基金：

中国国家自然科学基金;

关键词：

Graphene; CdS; Solvothermal; Photocatalytic; DEGRADATION; COMPOSITE; WATER; PERFORMANCE; REDUCTION; HYBRID; SHEETS; GAS;

D O I：

10.1016/j.jallcom.2012.10.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Graphene-CdS (G/CdS) nanocomposites were successfully synthesized via a facile and efficient solvothermal route. The structure and composition of the obtained nanocomposites were studied by means of X-ray diffraction (XRD), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectra (XPS), and UV-Vis spectrophotometry. XRD result showed that the CdS nanorods crystallized in a hexagonal structure. SEM and TEM observations demonstrated that a homogeneous distribution of CdS nanorods on the graphene nanosheets (GNS) was formed. FTIR and XPS analyses indicated that graphite oxide (GO) has been simultaneously reduced to GNS during the deposition of CdS nanocomposite. Furthermore, visible photocatalytic activity of the composite was tested using Rhodamine B (Rh. B) as the model contaminant. Compared with the bare GNS and CdS nanorods, the G/CdS nanocomposite displayed distinctly enhanced photocatalytic activities. Published by Elsevier B.V.

引用

页码：327 / 332

页数：6

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