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Magnetic porous carbon derived from Co‐doped metal–organic frameworks for the magnetic solid‐phase extraction of endocrine disrupting chemicals
Author(s) -
Hao Lin,
Wei Jiayi,
Zheng Ruixue,
Wang Chun,
Wu Qiuhua,
Wang Zhi
Publication year - 2017
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201700460
Subject(s) - solid phase extraction , carbonization , porosity , materials science , adsorption , extraction (chemistry) , cobalt , metal organic framework , magnetic nanoparticles , magnetism , chemical engineering , carbon fibers , specific surface area , chromatography , analytical chemistry (journal) , nanoparticle , chemistry , nanotechnology , catalysis , organic chemistry , metallurgy , composite material , physics , quantum mechanics , composite number , engineering
Metal–organic frameworks‐5 (MOF‐5) was explored as a template to prepare porous carbon due to its high surface area, large pore volume, and permanent nanoscale porosity. Magnetic porous carbon, Co@MOF‐5‐C, was fabricated by the one‐step direct carbonization of Co‐doped MOF‐5. After carbonization, the magnetic cobalt nanoparticles are well dispersed in the porous carbon matrix, and Co@MOF‐5‐C displays strong magnetism (with the saturation magnetization intensity of 70.17emu/g), high‐specific surface area, and large pore volume. To evaluate its extraction performance, the Co@MOF‐5‐C was applied as an adsorbent for the magnetic solid‐phase extraction of endocrine disrupting chemicals, followed by their analysis with high‐performance liquid chromatography. The developed method exhibits a good linear response in the range of 0.5–100 ng/mL for pond water and 1.0–100 ng/mL for juice samples. The limits of detection (S/N = 3) for the analytes were in the range of 0.1–0.2 ng/mL.