title: Ordered mesoporous carbon/Nafion as a versatile and selective solid-phase microextraction coating.
abstract: In this study, ordered mesoporous carbon (OMC) with large surface area (1019m(2)g(-1)), uniform mesoporous structure (pore size distribution centering at 4.2nm) and large pore volume (1.46cm(3)g(-1)) was synthesized using 2D hexagonally mesoporous silica MSU-H as the hard template and sucrose as the carbon precursor. The as-synthesized OMC was immobilized onto a stainless steel wire using Nafion as a binder to prepare an OMC/Nafion solid-phase microextraction (SPME) coating. The extraction characteristics of the OMC/Nafion coating were extensively investigated using a wide range of analytes including non-polar (light petroleum and benzene homologues) and polar compounds (amines and phenols). The OMC/Nafion coating exhibited much better extraction efficiency towards all selected analytes than that of a multi-walled carbon nanotubes/Nafion coating with similar length and thickness, which is ascribed to its high surface area, well-ordered mesoporous structure and large pore volume. When the OMC/Nafion coating was used to extract a mixture containing various kinds of analytes, it possessed excellent extraction selectivity towards aromatic non-polar compounds. In addition, the feasibility of the OMC/Nafion coating for application in electrochemically enhanced SPME was demonstrated using protonated amines as model analytes.
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China. Electronic address: xmuzjb@163.com.
authors.forename: Jingbin
authors.initials: J
authors.lastname: Zeng
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Cuiying
authors.initials: C
authors.lastname: Zhao
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Chen
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China; Department of chemistry, Abdul Wali Khan University, Mardan K.P.K, Pakistan.
authors.forename: Fazle
authors.initials: F
authors.lastname: Subhan
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Liwen
authors.initials: L
authors.lastname: Luo
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Yu
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Bingwen
authors.initials: B
authors.lastname: Cui
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China. Electronic address: xingwei@upc.edu.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Xing
authors.affiliation: State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.affiliation: State key laboratory of heavy oil processing & College of Science, China University of Petroleum (East China), Qingdao 266555, China.
authors.forename: Zifeng
authors.initials: Z
authors.lastname: Yan
mesh_terms: D000588:Amines / Q000032:analysis; D001555:Benzene Derivatives / Q000032:analysis; D002244:Carbon / Q000737:chemistry*; D055664:Electrochemical Techniques; D005240:Feasibility Studies; D005465:Fluorocarbon Polymers / Q000737:chemistry; D037742:Nanotubes, Carbon; D010578:Petroleum / Q000032:analysis; D010636:Phenols / Q000032:analysis; D016062:Porosity; D052617:Solid Phase Microextraction / Q000379:methods*; D013193:Stainless Steel
chemical_list: D000588:Amines; D001555:Benzene Derivatives; D005465:Fluorocarbon Polymers; D037742:Nanotubes, Carbon; D010578:Petroleum; D010636:Phenols; D013193:Stainless Steel; C040402:perfluorosulfonic acid; D002244:Carbon
keywords: Coating; Nafion; Ordered mesoporous carbon; Solid-phase microextraction