Tabatabaii Maryam, Khajeh Mostafa, Oveisi Ali Reza, Erkartal Mustafa, Sen Unal
Department of Chemistry, Faculty of Science, University of Zabol, P.O. Box: 98615-538 Zabol, Iran.
Department of Materials Science and Nanotechnology Engineering, Abdullah Gul University, 38080 Kayseri, Turkey.
ACS Omega. 2020 May 20;5(21):12202-12209. doi: 10.1021/acsomega.0c00687. eCollection 2020 Jun 2.
In this study, a novel porous hybrid material, poly(lauryl methacrylate) polymer-grafted UiO-66-NH (UiO = University of Oslo), was synthesized for efficient extraction of polycyclic aromatic hydrocarbons (PAHs) from aqueous samples. The polymer end-tethered covalently to the MOF's surface was synthesized by surface-initiated atom transfer radical polymerization, revealing a distinct type of morphology. The adsorbent was characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, powder X-ray diffraction, N adsorption-desorption analysis, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The analyses were carried out by gas chromatography-mass spectrometry. Parameters including the type and volume of the eluent, the amount of the adsorbent, and adsorption and desorption times were investigated and optimized. Under optimal conditions, the limit of detection, intraday precision, and interday precision were in the range of 3-8 ng L, 1.4-3.1, and 4.1-6.5%, respectively. The procedure was used for analysis of PAHs from natural water samples.
在本研究中，合成了一种新型多孔杂化材料，即聚（甲基丙烯酸月桂酯）聚合物接枝的UiO - 66 - NH（UiO = 奥斯陆大学），用于从水样中高效萃取多环芳烃（PAHs）。通过表面引发的原子转移自由基聚合反应合成了共价连接到金属有机框架（MOF）表面的聚合物，呈现出独特的形态。采用扫描电子显微镜、能谱分析、透射电子显微镜、粉末X射线衍射、N吸附 - 脱附分析、傅里叶变换红外光谱和热重分析对吸附剂进行了表征。通过气相色谱 - 质谱联用仪进行分析。研究并优化了包括洗脱剂类型和体积、吸附剂用量以及吸附和解吸时间等参数。在最佳条件下，检测限、日内精密度和日间精密度分别在3 - 8 ng L、1.4 - 3.1和4.1 - 6.5%的范围内。该方法用于天然水样中多环芳烃的分析。
