title: Magnetic solid phase extraction of typical polycyclic aromatic hydrocarbons from environmental water samples with metal organic framework MIL-101 (Cr) modified zero valent iron nano-particles.
abstract: Metal-organic framework material has been paid more attention because of its good physical and chemical properties. Nanoscale zero valent iron is also in the center of concern recently. Combination of their merits will give impressive results. Present study firstly synthesized a new magnetic nanomaterial nano-scale zero valent iron-functionalized metal-organic framworks MIL-101 (Fe@MIL-101) by co-precipitation method. The morphology and structure of the as-prepared Fe@MIL-101 were characterized by transmission electron microscopy and X-ray diffraction, etc. The experimental results showed that Fe@MIL-101 earned good adsorption ability to polycyclic aromatic hydrocarbons. The limits of detection of developed magnetic solid phase extraction were all below 0.064μgL-1and precision can be expressed as relative standard deviation (RSD, %) and which was better than 4.4% (n=6). The real water analysis indicated that the spiked recoveries were satisfied, and Fe@MIL-101 earned excellent reusability. All these demonstrated that Fe@MIL-101 exhibited excellent adsorption capability to polycyclic aromatic hydrocarbons and would be a good adsorbent for development of new monitoring methods for environmental pollutants.
authors.affiliation: College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China. Electronic address: zhouqx@cup.edu.cn.
authors.forename: Qingxiang
authors.initials: Q
authors.lastname: Zhou
authors.affiliation: College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China.
authors.forename: Man
authors.initials: M
authors.lastname: Lei
authors.affiliation: College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China.
authors.forename: Yalin
authors.initials: Y
authors.lastname: Wu
authors.affiliation: College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China.
authors.forename: Yongyong
authors.initials: Y
authors.lastname: Yuan
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods*; D005618:Fresh Water / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D000073396:Metal-Organic Frameworks; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D052616:Solid Phase Extraction; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D056831:Coordination Complexes; C000589635:MIL-101; D000073396:Metal-Organic Frameworks; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D007501:Iron
keywords: Fe@MIL-101; Magnetic solid phase extraction; Metal-organic framework material; Polycyclic aromatic hydrocarbons