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Surface Modification of KF Immobilized on Spherical Magnetite Nanoparticle with CTAB for Glycerol Carbonate Production
Author(s) -
Zhu Mengnan,
Yue Chengguang,
Zhang Pingbo,
Fan Mingming,
Jiang Pingping,
Dong Yuming,
Sun Wenjuan
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803670
Subject(s) - catalysis , transesterification , wetting , dimethyl carbonate , glycerol , contact angle , selectivity , yield (engineering) , nanoparticle , nuclear chemistry , materials science , chemical engineering , fourier transform infrared spectroscopy , chemistry , organic chemistry , nanotechnology , metallurgy , composite material , engineering
Catalytic transesterification, with high conversion and selectivity, promoted by supported KF in glycerol and dimethyl carbonate under mild condition, is reported. In the present study, KF immobilized on hydroxyapatite encapsulated spherical γ‐Fe 2 O 3 nanoparticles were synthesized and the catalyst was modified on the surface with CTAB. KF/HAP‐γ‐Fe 2 O 3 was characterized by a series of techniques including CO 2 ‐TPD, XRD, SEM, TEM, EDS, VSM, FTIR and the contact angle measurement of glycerol. It was demonstrated that the use of CTAB improved the surface wettability of the catalyst and facilitated the contact of the catalyst with the reactants. KF/HAP‐γ‐Fe 2 O 3 exhibited highly efficient catalytic activity with 97.5% yield. With magnetism, the solid base catalyst was easily recovered and reused for five times without significant loss of activity (up to 90%) for the transesterification reaction.