Issue

Vol. 14 (2022)

From 1D Nanofibers to 3D Nanofibrous Aerogels: A Marvellous Evolution of Electrospun SiO2 Nanofibers for Emerging Applications

https://doi.org/10.1007/s40820-022-00937-y
Cheng Liu
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China
Sai Wang
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China
Ni Wang
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China
Jianyong Yu
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China
Yi‑Tao Liu
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China
Bin Ding
Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, People’s Republic of China

Corresponding Author: Bin Ding

binding@dhu.edu.cn

Nano-Micro Letters, Vol. 14 (2022), Article Number: 194

Abstract

One-dimensional (1D) SiO2 nanofibers (SNFs), one of the most popular inorganic nanomaterials, have aroused widespread attention because of their excellent chemical stability, as well as unique optical and thermal characteristics. Electrospinning is a straightforward and versatile method to prepare 1D SNFs with programmable structures, manageable dimensions, and modifiable properties, which hold great potential in many cutting-edge applications including aerospace, nanodevice, and energy. In this review, substantial advances in the structural design, controllable synthesis, and multifunctional applications of electrospun SNFs are highlighted. We begin with a brief introduction to the fundamental principles, available raw materials, and typical apparatus of electrospun SNFs. We then discuss the strategies for preparing SNFs with diverse structures in detail, especially stressing the newly emerging three-dimensional SiO2 nanofibrous aerogels. We continue with focus on major breakthroughs about brittleness-to-flexibility transition of SNFs and the means to achieve their mechanical reinforcement. In addition, we showcase recent applications enabled by electrospun SNFs, with particular emphasis on physical protection, health care and water treatment. In the end, we summarize this review and provide some perspectives on the future development direction of electrospun SNFs.


Highlights:


1 The synthetic strategies of electrospun SiO2 nanofibers with diverse structures and their three-dimensional (3D) assemblies are reviewed in detail.
2 The brittleness-to-flexibility transition of SiO2 nanofibers and the means of mechanical strengthening are discussed.
3 The multifunctional applications of 3D SiO2 nanofibrous aerogels are emphasized, and the challenges and opportunities for their future development are prospected.

Keywords

SiO2 nanofibers Nanofibrous aerogels Structural design Mechanical reinforcement Multifunctional applications
Liu, Cheng, Sai Wang, Ni Wang, Jianyong Yu, Yi‑Tao Liu, and Bin Ding. 2022. “From 1D Nanofibers to 3D Nanofibrous Aerogels: A Marvellous Evolution of Electrospun SiO2 Nanofibers for Emerging Applications”. Nano-Micro Letters 14 (September):194. https://doi.org/10.1007/s40820-022-00937-y.
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