Co-electrospinning fabrication and photocatalytic performance of TiO2/SiO2 core/sheath nanofibers with tunable sheath thickness

Cao, Houbao; Du, Pingfan; Song, Lixin; Xiong, Jie; Yang, Junjie; Xing, Tonghai; Liu, Xin; Wu, Rongrong; Wang, Minchao; Shao, Xiaoli

doi:10.1016/j.materresbull.2013.08.035

Cited by 17 publications

(5 citation statements)

References 44 publications

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“…Subsequently, after a series of complex processes of stretching, whipping, and solidification, the core-sheath nanofibers with distinct core and sheath composition are formed by the jet [ 80 ]. Based on this conventional coaxial electrospinning technique, Cao et al reported core-sheath TiO 2 /SiO 2 nanofibers with controlled sheath thickness [ 81 ]. They designed TEOS/polyvinyl acetate (PVAc) solution as outer liquid and titanium isopropylate/PVAc solution as inner liquid and finally achieved effective regulation of SiO 2 sheath thickness by controlling the feeding rate of outer liquid combined with subsequent calcination (Fig.…”

Section: Structure Design Of Electrospun Snfsmentioning

confidence: 99%

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

Liu

Wang

et al. 2022

Nano-Micro Lett.

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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.

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Section: Structure Design Of Electrospun Snfsmentioning

confidence: 99%

Section: Structure Design Of Electrospun Snfsmentioning

confidence: 99%

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

Liu

Wang

et al. 2022

Nano-Micro Lett.

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“…Amongst numerous synthesis methods such as hydrothermal synthesis, self-assembly, and template synthesis, electrospinning has become a costeffective and feasible method to produce organic or inorganic nanofibers [22,23]. In particular, silica-doped TiO 2 nanofibers have displayed specific microstructure and excellent photocatalytic activity [24,25]. Cao et al found that a core-sheath structure of TiO 2 /SiO 2 nanofibers could be obtained via a facile co-electrospinning technique with subsequent calcination at 500°C.…”

Section: Introductionmentioning

confidence: 99%

Microstructure of SiO2/TiO2 hybrid electrospun nanofibers and their application in dye degradation

Liang

Zhao

2016

Res Chem Intermed

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SiO 2 /TiO 2 hybrid nanofibers were prepared by electrospinning and applied for photocatalytic degradation of methylene blue (MB). The phase structure, specific surface area, and surface morphologies of the SiO 2 /TiO 2 hybrid nanofibers were characterized through thermogravimetry (TG), X-ray diffraction (XRD) analysis, Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), etc. XRD measurements indicated that doping of silica into TiO 2 nanofibers can delay the phase transition from anatase to rutile and decrease the grain size. SEM and BET characterization proved that silica doping can remarkably enhance the porosity of the SiO 2 /TiO 2 hybrid nanofibers. The MB adsorption capacity and photocatalytic activity of the SiO 2 /TiO 2 hybrid nanofibers were distinguished experimentally. It was found that, although increased silica doping content could enhance the MB adsorption capacity, the intrinsic photocatalytic activity gradually dropped. The SiO 2 (10 %)/TiO 2 composite nanofibers exhibited the highest MB degradation rate, being superior to SiO 2 (20 %)/TiO 2 or pure TiO 2 .

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“…[20][21][22][23][24] In this work, the synthesis of heterostructured nitride-based nanofibers by coaxial electrospinning is reported for the first time. Most of the attention has been focused on both the polymer and metal oxide, such as TiO 2 , TiO 2 -ZnO, ZnO-SnO 2 and TiO 2 -SiO 2 nanofibers etc.…”

mentioning

confidence: 99%

“…Most of the attention has been focused on both the polymer and metal oxide, such as TiO 2 , TiO 2 -ZnO, ZnO-SnO 2 and TiO 2 -SiO 2 nanofibers etc. [20][21][22][23][24] In this work, the synthesis of heterostructured nitride-based nanofibers by coaxial electrospinning is reported for the first time. It is expected that this technique will be applicable to the synthesis of other nitride-based composite nanofibers such as GaN-, InN-, and AlN-hybrid nanofibers with functional properties and practical applications.…”

mentioning

confidence: 99%

Copper-coated TiN nanofibers with high electrical conductivity: a new advance in conductive one-dimensional nanostructures

Chen

et al. 2015

J. Mater. Chem. C

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High electrical conductivity has been achieved in ceramics with a heterostructure design. We managed to incorporate an inexpensive metal into conductive nitride nanofibers. Low sheet resistance and high optical transparency were obtained on the nanofiber patterns, which indicate that it may serve as a new material for transparent electrodes. Fig. 6 (a) Schematic diagram of device testing, (b) ordered fibers on the wafer, (c) ordered fibers on the wafer with gold electrodes deposited, (d) I-V characteristics of TiN and Cu-coated TiN nanofibers, lower inset: I-V characteristic of the sample without nanofibers.Fig. 7 Transmittance spectrum of a Cu-coated TiN nanofiber network. The inset shows the set up for a nanofiber-based transparent electrode.

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Co-electrospinning fabrication and photocatalytic performance of TiO2/SiO2 core/sheath nanofibers with tunable sheath thickness

Cited by 17 publications

References 44 publications

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

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

Microstructure of SiO2/TiO2 hybrid electrospun nanofibers and their application in dye degradation

Copper-coated TiN nanofibers with high electrical conductivity: a new advance in conductive one-dimensional nanostructures

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