LU Peipei, XU Zhenliang, YANG Hu, et al. Preparation of perfluorosulfonic acid-polyethersulfone-nanoparticles composite nanofibers and their catalytic properties[J]. CIESC Journal, 2013, (4): 1466-1472.
LU Peipei, XU Zhenliang, YANG Hu, et al. Preparation of perfluorosulfonic acid-polyethersulfone-nanoparticles composite nanofibers and their catalytic properties[J]. CIESC Journal, 2013, (4): 1466-1472.DOI: 10.3969/j.issn.0438-1157.2013.04.047.
TiO2 and Al2O3) were prepared by electrospinning method from PFSA-PES-nanoparticle suspensions.The effects of nanoparticles on morphology and surface acid groups of thenanofibers were investigated.The composite nanofibers were tested in esterification of acetic acid (HAc) and ethanol (EtOH) to investigate the relationship between structures and catalytic performance.The results showed that the specific surface area of obtained nanofibers was 85.6 m2穏-1.Nanoparticles were well distributed on the surface of the nanofibers and provided enough surface area for the reactants.The number of surface acidic centers on the surface was 71.2% of total PFSA acidic groups.Besides
the nanofibers exhibited good catalytic performance in the reactions due to improvement of activity by the nanoparticles.Moreover
these fibers could be well recovered and regenerated
and could be used as an environmental-friendly solid acid catalyst.