Abstract
Na7PW11O39 (PW11) was immobilized on quanternary ammonium functionalized chloromethylated polystyrene (DMA16/CMPS) in a facile method and used as efficient recyclable catalyst in oxidation of alcohol. Commercially available mesopores and macropores CMPS was quaternized by N, N- dimethylhexadecylamine (DMA16) followed by immobilization of PW11 onto the pore of CMPS by electrostatic interaction. The synthesized catalyst was characterized by Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), thermo gravimetric analyzer (TGA), ultraviolet–visible (UV–vis), N2 adsorption–desorption, X-ray photoelectron spectroscopy (XPS), zeta potential, contact angle, 31P nuclear magnetic resonance (31P NMR), scanning electron microscope (SEM), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The results indicated that Na7PW11O39 was successfully immobilized by electrostatic interaction and finely dispersed on quaternary ammonium functionalized CMPS. PW11-DMA16/CMPS showed a similar catalytic activity to that of homogeneous PW11, which was attributed to the hydrophobic nature of the PW11-DMA16/CMPS and facile diffusion of reactant to the active sites provided by widely opened mesopores and macropores. The present approach provides a promising and universal strategy for the construction of hybrid catalysts based on POMs and mesopores and macropores materials.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
