Preparation of a magnetic multiwalled carbon nanotube@polydopamine/zeolitic imidazolate framework-8 composite for magnetic solid-phase extraction of triazole fungicides from environmental water samples

文献类型： 外文期刊

第一作者： Huang, Xiaodong

作者： Huang, Xiaodong;Gao, Haixiang;Liu, Yanan;Liu, Guangyang;Li, Lingyun;Xu, Xiaomin;Zheng, Shuning;Xu, Donghui

作者机构：

期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）

ISSN： 2046-2069

年卷期： 2018 年 8 卷 45 期

页码：

收录情况： SCI

摘要： A novel magnetic zinc-based zeolitic imidazolate framework (MMP/ZIF-8) has been prepared using a magnetic multiwalled carbon nanotube@polydopamine nanocomposite as the magnetic core and support. It was then used as an adsorbent for magnetic solid-phase extraction of triazole fungicides from environmental water samples. Successful synthesis of MMP/ZIF-8 was confirmed by material characterization, and the results showed that the synthetic composite has a high Brunauer-Emmett-Teller surface area (141.56 m(2) g(-1)), large total pore volume (0.636 mL g(-1)), and high superparamagnetism with a saturation magnetization of 44.1 emu g(-1). To evaluate the extraction performance of MMP/ZIF-8, the main parameters that affect the extraction efficiency were optimized. Under the optimal conditions, the developed method shows good linearity (R-2 0.9915) in the concentration range 1-400 g L-1. Low limits of detection (0.08-0.27 g L-1, signal/noise = 3:1) and good precision (intraday relative standard deviation 7.73%, interday relative standard deviation 9.65%) are also achieved. The developed method was applied for analysis of triazole fungicides in environmental water samples.

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