低温剥离法制备高性能石墨烯/ZnO复合材料

doi:10.3724/SP.J.1077.2012.00591

无机材料学报 ›› 2012, Vol. 27 ›› Issue (6): 591-595.DOI: 10.3724/SP.J.1077.2012.00591 CSTR: 32189.14.SP.J.1077.2012.00591

低温剥离法制备高性能石墨烯/ZnO复合材料

袁文辉¹, 顾叶剑¹, 李保庆¹, 李莉²

(华南理工大学1. 化学与化工学院; 2. 环境科学与工程学院, 广州510640)

收稿日期:2012-01-03 修回日期:2012-02-19 出版日期:2012-06-20 网络出版日期:2012-05-07
基金资助:
国家自然科学基金(20976057)

Facile Synthesis of Graphene/ZnO Nanocomposites by a Low-temperature Exfoliation Method

YUAN Wen-Hui¹, GU Ye-Jian¹, LI Bao-Qing¹, LI Li²

(1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; 2. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China)

Received:2012-01-03 Revised:2012-02-19 Published:2012-06-20 Online:2012-05-07
Supported by:
National Natural Science Foundation of China (20976057)

摘要/Abstract

摘要： 采用氧化石墨和七水合硫酸锌作为初始反应物, 在低温下(80℃)合成了氧化石墨/ZnO, 然后通过低温剥离法制备了高质量石墨烯/ZnO (GNS/ZnO)复合材料. 采用X射线衍射(XRD)、傅里叶变换红外(FTIR)光谱、热重分析仪(TG)、X射线光电子能谱(XPS)、拉曼光谱(RS)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)等分析手段对石墨烯/ZnO样品进行了表征. 结果表明: 氧化石墨还原彻底, 纳米ZnO成功地负载到了石墨烯上, 有效地减少了石墨烯片层间的团聚现象. 通过对ZnO和石墨烯/ZnO荧光性能测试, 结果表明: 石墨烯/ZnO发生了荧光淬灭现象, 在光电子领域拥有广阔的应用前景.

关键词: 石墨烯, ZnO, 低温剥离, 荧光性能

Abstract: Graphite oxide/ZnO was prepared at low temperature (80℃) with graphite oxide (GO) and zinc sulfate heptahydrate (ZnSO4·7H2O) as initial reactants. The graphene/ZnO (GNS/ZnO) was then prepared by a low-temperature chemical exfoliation method. The as-prepared GNS/ZnO was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscope (FT-IR), thermo-gravimetric analysis (TG), X-ray photoelectron spectroscopy (XPS), Raman spectra (RS), scanning electron microscope (SEM) and transmission electron microscope (TEM), respectively. The results indicate that graphite oxide is completely reduced to graphene and the well-dispersed ZnO nanoparticles are successfully deposited on graphene sheets as spacers to keep the neighboring sheets separate. Photoluminescence spectra of ZnO and GNS/ZnO nanocomposites display the ?uorescence quenching property of GNS/ZnO, implying that the GNS/ZnO nanocomposites are expected for practical use in the field of photoelectronics.

Key words: graphene, ZnO, low temperature exfoliation, fluorescence property

中图分类号:

TB33

袁文辉, 顾叶剑, 李保庆, 李莉. 低温剥离法制备高性能石墨烯/ZnO复合材料[J]. 无机材料学报, 2012, 27(6): 591-595.

YUAN Wen-Hui, GU Ye-Jian, LI Bao-Qing, LI Li. Facile Synthesis of Graphene/ZnO Nanocomposites by a Low-temperature Exfoliation Method[J]. Journal of Inorganic Materials, 2012, 27(6): 591-595.

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低温剥离法制备高性能石墨烯/ZnO复合材料

Facile Synthesis of Graphene/ZnO Nanocomposites by a Low-temperature Exfoliation Method

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