title: Parts per billion-level detection of benzene using SnO2/graphene nanocomposite composed of sub-6 nm SnO2 nanoparticles.
abstract: In the present work, the SnO(2)/graphene nanocomposite composed of 4-5 nm SnO(2) nanoparticles was synthesized using a simple wet chemical method for ppb-level detection of benzene. The formation mechanism of the nanocomposite was investigated systematically by means of simultaneous thermogravimetry analysis, X-ray diffraction, and X-ray photoelectron spectroscopy cooperated with transmission electron microscopy observations. The SnO(2)/graphene nanocomposite showed a very attractive improved sensitivity to toxic volatile organic compounds, especially to benzene, compared to a traditional SnO(2). The responses of the nanocomposite to benzene were a little higher than those to ethanol and the detection limit reached 5 ppb to benzene which is, to our best knowledge, far lower than those reported previously.
authors: Research Center for Biomimetic Functional Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, China.
authors: Fan-Li
authors: FL
authors: Meng
authors: Hui-Hua
authors: HH
authors: Li
authors: Ling-Tao
authors: LT
authors: Kong
authors: Jin-Yun
authors: JY
authors: Liu
authors: Zhen
authors: Z
authors: Jin
authors: Wei
authors: W
authors: Li
authors: Yong
authors: Y
authors: Jia
authors: Jin-Huai
authors: JH
authors: Liu
authors: Xing-Jiu
authors: XJ
authors: Huang
mesh_terms: D001554:Benzene / Q000032:analysis*; D006108:Graphite / Q000737:chemistry*; D057230:Limit of Detection; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D013818:Thermogravimetry; D017971:Tin Compounds / Q000737:chemistry*; D014131:Trace Elements / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D017971:Tin Compounds; D014131:Trace Elements; D006108:Graphite; D001554:Benzene; C045358:stannic oxide