石墨烯
材料科学
纳米复合材料
光催化
甲基橙
纳米颗粒
纳米棒
纳米技术
热液循环
化学工程
水热合成
氧化物
兴奋剂
电化学
催化作用
电极
化学
光电子学
有机化学
冶金
物理化学
工程类
作者
Ping Chen,Tianyuan Xiao,Hui‐Hui Li,Jingjing Yang,Zheng Wang,Hong‐Bin Yao,Shu‐Hong Yu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2011-12-02
卷期号:6 (1): 712-719
被引量:277
摘要
Nitrogen-doped graphene (GN) has great potential applications in many fields because doping with nitrogen can alter the electrical properties of graphene. It is still a challenge to develop a convenient method for synthesis of GN sheets. In this paper, we first report the synthesis of a nitrogen-doped graphene/ZnSe nanocomposite (GN-ZnSe) by a one-pot hydrothermal process at low temperature using graphene oxide nanosheets and [ZnSe](DETA)(0.5) nanobelts as precursors. ZnSe nanorods composed of ZnSe nanoparticles were found to deposit on the surface of the GN sheets. The results demonstrated that [ZnSe](DETA)(0.5) nanobelts were used not only as the source of ZnSe nanoparticles but also as the nitrogen source. Interestingly, it was found that the as-prepared nanocomposites exhibit remarkably enhanced electrochemical performance for oxygen reduction reaction and photocatalytic activities for the bleaching of methyl orange dye under visible-light irradiation. This facile and catalyst-free approach for depositing ZnSe nanoparticles onto the graphene sheets may provide an alternative way for preparation of other nanocomposites based on GN sheets under mild conditions, which show their potential applications in wastewater treatment, fuel cells, energy storage, nanodevices, and so on.
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