High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions

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	High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions
	Li, W ; Gao, S ; Wu, L ; Qiu, SQ ; Guo, YF ; Geng, XM ; Chen, ML ; Liao, ST ; Zhu, C ; Gong, YP ; Long, MS ; Xu, JB ; Wei, XF ; Sun, MT ; Liu, LW
刊名	SCIENTIFIC REPORTS
	2013
卷号	3
ISSN号	2045-2322
通讯作者	Liu, LW (reprint author), Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Nanodevices & Applicat, Suzhou 215123, Jiangsu, Peoples R China.
中文摘要	The chemical vapor deposition (CVD) fabrication of high-density three-dimension graphene macroscopic objects (3D-GMOs) with a relatively low porosity has not yet been realized, although they are desirable for applications in which high mechanical and electrical properties are required. Here, we explore a method to rapidly prepare the high-density 3D-GMOs using nickel chloride hexahydrate (NiCl2 center dot 6H(2)O) as a catalyst precursor by CVD process at atmospheric pressure. Further, the free-standing 3D-GMOs are employed as electrolytic electrodes to remove various heavy metal ions. The robust 3D structure, high conductivity (similar to 12 S/cm) and large specific surface area (similar to 560 m(2)/g) enable ultra-high electrical adsorption capacities (Cd2+ similar to 434 mg/g, Pb2+ similar to 882 mg/g, Ni2+ similar to 1,683 mg/g, Cu2+ similar to 3,820 mg/g) from aqueous solutions and fast desorption. The current work has significance in the studies of both the fabrication of high-density 3D-GMOs and the removal of heavy metal ions.
资助信息	National Natural Science Foundation of China [10834004, 51102273]; Project of Chinese Academy of Sciences [KGZD-EW-303]; Ministry of National Science and Technology Projects of China [2010CB934700, 2012CB722708]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57071]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, W,Gao, S,Wu, L,et al. High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions[J]. SCIENTIFIC REPORTS,2013,3.
APA	Li, W.,Gao, S.,Wu, L.,Qiu, SQ.,Guo, YF.,...&Liu, LW.(2013).High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions.SCIENTIFIC REPORTS,3.
MLA	Li, W,et al."High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions".SCIENTIFIC REPORTS 3(2013).