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The Cooperativity of Fe 3 O 4 and Metal‐Organic Framework as Multifunctional Nanocomposites for Laser Desorption Ionization Process
Author(s) -
Fu ChungWei,
Lirio Stephen,
Shih YungHan,
Liu WanLing,
Lin ChiaHer,
Huang HsiYa
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201800994
Subject(s) - polyoxometalate , nanocomposite , metal organic framework , desorption , phosphotungstic acid , adsorption , materials science , chemical engineering , polysulfone , mass spectrometry , analytical chemistry (journal) , inorganic chemistry , chemistry , polymer , nanotechnology , composite material , organic chemistry , chromatography , engineering , catalysis
A novel and facile strategy in developing a water stable magnetic metal‐organic framework nanocomposite (Fe 3 O 4 @MOF) is herein reported, in which a Keggin polyoxometalate, phosphotungstic acid (HPW), was encapsulated within the MOF framework via one‐pot synthesis method. The combination of HPW‐embedded MOF and Fe 3 O 4 endowed the composite with high surface area, strong UV absorption, good hydrophilicity, and enhanced water stability. With these unique properties, the Fe 3 O 4 @MOF embedded HPW served as adsorbent as well as matrix for SALDI‐MS (surface‐assisted laser desorption ionization mass spectrometry) analysis of polar and non‐polar compounds. The synergistic effect of Fe 3 O 4 and MOF showed an interference‐free background at low mass region than the pristine MOF or Fe 3 O 4 counterparts. This simple approach can be used as new platform in developing magnetic MOF composites without the time consuming and labor‐intensive preparation.