Abstract
We report a new synthetic route for preparation of Fe2O3@SiO2 core–shell nanoparticles by calcination of silica-coated Fe-based nanoscale coordination polymers (Fe-NCPs). Firstly, Fe-NCPs were synthesized by microwave-assisted method. The as-synthesized Fe-NCPs were then coated with silica as a shell via a sol–gel process. Finally, Fe2O3@SiO2 core–shell nanoparticles were achieved through the calcination of the silica-coated Fe-NCPs. The as-synthesized nanoparticles were investigated by scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, and N2 sorption–desorption isotherms. The as-synthesized nanoparticles exhibit core–shell structured, magnetic characteristics and high porosity.
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R.E. Morris, P.S. Wheatley, Gas storage in nanoporous materials. Angew. Chem. Int. Ed. 47, 4966–4981 (2008)
Z. Wang, S.M. Cohen, Postsynthetic modification of metal-organic frameworks. Chem. Soc. Rev. 38, 1315–1329 (2009)
R. Sen, D. Saha, S. Koner, Controlled construction of metal-organic frameworks: hydrothermal synthesis, X-ray structure, and heterogeneous catalytic study. Chem. Eur. J. 18, 5979–5986 (2012)
F. Ke, Y.-P. Yuan, L.-G. Qiu, Y.-H. Shen, A.-J. Xie, J.-F. Zhu, X.-Y. Tian, L.-D. Zhang, Facile fabrication of magnetic metal-organic framework nanocomposites for potential targeted drug delivery. J. Mater. Chem. 21, 3843–3848 (2011)
S. Keskin, S. Kizilel, Biomedical applications of metal organic frameworks. Ind. Eng. Chem. Res. 50, 1799–1812 (2011)
E. Haldoupis, S. Nair, D.S. Sholl, Finding MOFs for highly selective CO2/N2 adsorption using materials screening based on efficient assignment of atomic point charges. J. Am. Chem. Soc. 134, 4313–4323 (2012)
S.M. Hu, H.-L. Niu, L.-G. Qiu, Y.-P. Yuan, X. Jiang, A.-J. Xie, Y.-H. Shen, J.-F. Zhu, Facile synthesis of highly luminescent nanowires of a terbium-based metal-organic framework by an ultrasonic-assisted method and their application as a luminescent probe for selective sensing of organoamines. Inorg. Chem. Commun. 17, 147–150 (2012)
L. Catala, F. Volatron, D. Brinzei, T. Mallah, Functional coordination nanoparticles. Inorg. Chem. 48, 3360–3370 (2009)
P. Horcajada, R. Gref, T. Baati, P.K. Allan, G. Maurin, P. Couvr-eur et al., Metal-organic frameworks in biomedicine. Chem. Rev. 112, 1232–1268 (2012)
K.M.L. Taylor, A. Jin, W.B. Lin, Surfactant-assisted synthesis of nanoscale gadolinium metal-organic frameworks for potential multimodal imaging. Angew. Chem. Int. Ed. 47, 7722–7725 (2008)
R. Li, L.-G. Qiu, Y.-P. Yuan, W. Zhang, J.-F. Zhu, A rational self-sacrificing template route to metal-organic framework nanotubes and reversible vapor-phase detection of nitroaromatic explosives. Small 8, 225–230 (2012)
L.-G. Qiu, Z.-Q. Li, Y. Wu, W. Wang, T. Xu, X. Jiang, Facile synthesis of nanocrystals of a microporous metal-orgnaic framework by an ultrasonic method and selective sensing of organoamines. Chem. Commun. 31, 3642–3644 (2008)
J. Klinowski, F.A.A. Paz, P. Silva, J. Rocha, Microwave-assisted synthesis of metal-organic frameworks. Dalton Trans. 40, 321–330 (2011)
N.A. Khan, E. Haque, S.H. Jhung, Rapid synthesis of a metal-organic framework material Cu3(BTC)2(H2O)3 under microwave: a quantitative analysis of accelerated syntheses. Phys. Chem. Chem. Phys. 12, 2625–2631 (2010)
T. Ninjbadgar, D.F. Brougham, Epoxy ring opening phase transfer as a general route to water dispersible superparamagetic Fe3O4 nanoparticles and their application as positive MRI contrast agents. Adv. Funct. Mater. 21, 4769–4775 (2011)
M.F. Shao, F.Y. Ning, J.W. Zhao, M. Wei, D.G. Evans, X. Duan, Preparation of Fe3O4@SiO2@layered double hydroxide core–shell microspheres for magnetic separation of proteins. J. Am. Chem. Soc. 134, 1071–1077 (2012)
W.C. Xiao, H.C. Gu, D. Li, D.D. Chen, X.Y. Deng, Z. Jiao, J. Lin, Microwave-assisted synthesis magnetite nanoparticles for MR blood pool contrast agents. J. Magn. Magn. Mater. 324, 488–494 (2011)
L.H. Han, H. Liu, Y. Wei, In situ synthesis of hematite nanoparticles using a low-temperature microemulsion method. Powder Technol. 207, 42–46 (2011)
K.E. deKrafft, C. Wang, W.B. Lin, Metal-organic framework templated synthesis of Fe2O3/TiO2 nanocomposites for hydrogen production. Adv. Mater. 24, 2014–2018 (2012)
W. Cho, S. Park, M. Oh, Coordination polymer nanorods of Fe-MIL-88B and their utilization for selective preparation of hematite and magnetite nanorods. Chem. Commun. 47, 4138–4140 (2011)
Z.-M. Liu, S.-H. Wu, S.-Y. Jia, F.-X. Qin, S.-M. Zhou, H.-T. Ren, P. Na, Y. Liu, Novel hematite nanorods and magnetite nanoparticles prepared from MIL-100(Fe) template for the removal of As (V). Mater. Lett. 132, 8–10 (2014)
J.U. Park, H.J. Lee, W. Cho, C. Jo, M. Oh, Facile synthetic route for thickness and composition tuneable hollow metal oxide spheres from silica-templated coordination polymers. Adv. Mater. 23, 3161–3164 (2011)
C. Jo, H.J. Lee, M. Oh, One-pot synthesis of silica@coordination polymer core–shell microspheres with controlled shell thickness. Adv. Mater. 23, 1716–1719 (2011)
E. Haque, N.A. Khan, J.H. Park, S.H. Jhung, Synthesis of a metal-organic framework material, iron terephthalate, by ultrasound, microwave, and conventional electric heating: a kinetic study. Chem. Eur. J. 16, 1046–1052 (2010)
K.M.L. Taylor, W.J. Rieter, W.B. Lin, Manganese-based nanoscale metal organic frameworks for magnetic resonance imaging. J. Am. Chem. Soc. 130, 14358–14359 (2008)
Acknowledgments
This work was supported by the National Natural Science Foundation of China (NSFC, 20971001), the NSFC-CAS Joint Fund for Research Based on Large-Scale Scientific Facilities (10979014), the Natural Science Foundation Department of Education of Anhui Province, China (KJ2011B042), the Program for New Century Excellent Talents in University, Ministry of Education, China (NCET-08-0617), and the “211 Project” of Anhui University.
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Wu, F., Qiu, LG., Jiang, X. et al. Synthesis of silica-coated Fe-based coordination polymers as precursor for preparation of Fe2O3@SiO2 core–shell nanoparticles. J Porous Mater 22, 559–563 (2015). https://doi.org/10.1007/s10934-015-9928-6
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DOI: https://doi.org/10.1007/s10934-015-9928-6