Preparation of perfluorosulfonic acid-polyethersulfone-nanoparticles composite nanofibers and their catalytic properties

LU Peipei; XU Zhenliang; YANG Hu; MA Xiaohua; WEI Yongming

doi:10.3969/j.issn.0438-1157.2013.04.047

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Preparation of perfluorosulfonic acid-polyethersulfone-nanoparticles composite nanofibers and their catalytic properties

更新时间：2025-12-10

- Preparation of perfluorosulfonic acid-polyethersulfone-nanoparticles composite nanofibers and their catalytic properties
- CIESC Journal Issue 4, Pages: 1466-1472(2013)
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室,化学工程研究所膜科学与工程研发中心,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.04.047
  CLC： Q31
- Online First：05 April 2013，
  
  Published：05 April 2013
- 稿件说明：
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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：

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.

摘要

利用静电纺丝法制备了全氟磺酸(PFSA)-聚醚砜(PES)-纳米颗粒(SiO2、TiO2和Al2O3)复合纳米纤维

比较了SiO2、TiO2和Al2O3等不同纳米颗粒对磺酸基团在纤维表面分布的影响

并利用乙酸乙酯合成反应考察了纤维结构对表面磺酸基团活性的关系。结果表明:静电纺复合纳米纤维的比表面积可达85.6 m2·g-1

纳米颗粒均匀分布在纤维表面

表面酸性中心占PFSA酸性基团总量最高达71.2%。酯化反应实验表明

复合纳米纤维具有很好的催化性能

纳米颗粒的存在可以提高酸中心的活性;同时

所得复合纳米纤维膜表现出很好的回收与可再生性能

有望作为一种对环境友好的固体酸催化剂。

Abstract

Nanofibers of perfluorosulfonic acid (PFSA)

polyethersulfone (PES) and nanoparticles (SiO2

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.

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