One-step synthesis of isoreticular metal-organic framework-8 derived hierarchical porous carbon and its application in differential pulse anodic stripping voltammetric determination of Pb(II)
Xiao, LL (Xiao, Lili); Zhou, SH (Zhou, Shenghai); Hu, GZ (Hu, Guangzhi); Xu, HB (Xu, Hongbo); Wang, Y (Wang, Yi); Yuan, QH (Yuan, Qunhui); Yuan, QH
2015
发表期刊RSC ADVANCES
卷号5期号:94页码:77159-77167
摘要

A novel nanoporous carbon material (NPC) was prepared by simple pyrolysis of an isoreticular metalorganic framework-8 (IRMOF-8) at 1000 degrees C. The obtained NPC possessed a three-dimensional hierarchy of micro-, meso-, and macropores, a high surface area of 1715 m(2) g(-1) and a large pore volume of 1.70 cm(3) g(-1). By using Nafion and bismuth films as co-modifiers, the obtained NPC was further used for the fabrication of a sensitive NPC-Nafion/bismuth composite modified glassy carbon electrode (NPC-Nafion/Bi/GCE) for electrochemical determination of Pb(II) in aqueous solution. The synergistic effect of the Nafion and Bi films, as well as the high activated surface area, hierarchical porous texture, and good electrical conductivity of the NPC contributed to the enhanced electrochemical response of Pb(II) at the NPC-Nafion/Bi/GCE during differential pulse anodic stripping voltammetry. Under the optimum conditions, the fabricated electrode exhibited two linear ranges varying from 1-7 mg L-1 and 770 mg L-1, respectively. The detection limit was estimated to be 0.8 mg L-1 (at a signal-to-noise ratio of 3) for Pb(II), which was about 12 times lower than the guideline value set by the World Health Organization (WHO) for drinking water. The NPC-Nafion/Bi/GCE showed high reproducibility, with relative standard deviations of 6.2% and 3.4% for multiple successive measurements of 10 and 50 mg L-1 Pb(II), respectively. The composite electrode was successfully used in the analyses of Pb(II) in tap-water samples, and good recoveries were obtained for various spiked values.

DOI10.1039/c5ra11832h
收录类别SCI
WOS记录号WOS:000361559700062
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5109
专题中国科学院特殊环境功能材料与器件重点试验室
通讯作者Yuan, QH
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Xiao, LL ,Zhou, SH ,Hu, GZ ,et al. One-step synthesis of isoreticular metal-organic framework-8 derived hierarchical porous carbon and its application in differential pulse anodic stripping voltammetric determination of Pb(II)[J]. RSC ADVANCES,2015,5(94):77159-77167.
APA Xiao, LL .,Zhou, SH .,Hu, GZ .,Xu, HB .,Wang, Y .,...&Yuan, QH.(2015).One-step synthesis of isoreticular metal-organic framework-8 derived hierarchical porous carbon and its application in differential pulse anodic stripping voltammetric determination of Pb(II).RSC ADVANCES,5(94),77159-77167.
MLA Xiao, LL ,et al."One-step synthesis of isoreticular metal-organic framework-8 derived hierarchical porous carbon and its application in differential pulse anodic stripping voltammetric determination of Pb(II)".RSC ADVANCES 5.94(2015):77159-77167.
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