One-pot fabrication of hollow SiO2 nanowires via an electrospinning technique

An, Geon Hyoung; Jeong, Sang Yong; Seong, Tae Yeon; Ahn, Hyo Jun

doi:10.1016/j.matlet.2011.05.043

Cited by 34 publications

(6 citation statements)

References 10 publications

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“…Zygmunt et al [ 24 ] used the vanadium oxide hydrate as template to synthesize the SiO 2 nanotubes with good chemical purity, a well defined morphology and high aspect ratio. An et al [ 25 ] reported the synthesis of hollow SiO 2 nanowires via the electrospinning technique. Ogihara et al [ 26 ] synthesized the SiO 2 nanotubes by the hydrolysis of tetraethyl orthosilicate (TEOS) with carbon nanofibers as templates.…”

Section: Introductionmentioning

confidence: 99%

SiO2/ZnO Composite Hollow Sub-Micron Fibers: Fabrication from Facile Single Capillary Electrospinning and Their Photoluminescence Properties

Song

et al. 2017

Nanomaterials

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In this work, SiO2/ZnO composite hollow sub-micron fibers were fabricated by a facile single capillary electrospinning technique followed by calcination, using tetraethyl orthosilicate (TEOS), polyvinylpyrrolidone (PVP) and ZnO nanoparticles as raw materials. The characterization results of the scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) spectra indicated that the as-prepared composite hollow fibers consisted of amorphous SiO2 and hexagonal wurtzite ZnO. The products revealed uniform tubular structure with outer diameters of 400–500 nm and wall thickness of 50–60 nm. The gases generated and the directional escaped mechanism was proposed to illustrate the formation of SiO2/ZnO composite hollow sub-micron fibers. Furthermore, a broad blue emission band was observed in the photoluminescence (PL) of SiO2/ZnO composite hollow sub-micron fibers, exhibiting great potential applications as blue light-emitting candidate materials.

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Section: Introductionmentioning

confidence: 99%

SiO2/ZnO Composite Hollow Sub-Micron Fibers: Fabrication from Facile Single Capillary Electrospinning and Their Photoluminescence Properties

Song

et al. 2017

Nanomaterials

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“…4 g-h). Based on the phase separation effect, An and colleagues conducted a series of regulation on the volume ratio of TEOS to ethanol in the spinning dope and then prepared hollow SNFs by electrospinning and high-temperature sintering [ 99 ]. These results suggest that phase separation method may be one of the most direct and effective methods to prepare hollow SNFs.…”

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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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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“…Therefore, the challenge remains to develop a facile and economical method to produce 1D CN-NT. The template method is usually selected as the most common way to synthesize CN-NT because the morphology and dimensions of the procured nanotubes can be flexibly regulated by modifying the shape of the template. , Electrospinning is a good method to prepare excellent templates, which can produce uniform size, fluffy, and easily removable SiO 2 nanofiber templates. − Meanwhile, melamine as the precursor is nontoxic, stable, inexpensive, and processable with a moderate synthetic temperature in air environment . Melamine reaches its sublimation point at about 335 °C, then polymerizes to tri- s -triazine (melem) units above 380 °C, and finally forms a carbon nitride network at 550 °C. , …”

Section: Introductionmentioning

confidence: 99%

Ordered and Ultralong Graphitic Carbon Nitride Nanotubes Obtained via In-Air CVD for Enhanced Photocatalytic Hydrogen Evolution

Fan

Wang

et al. 2021

ACS Appl. Energy Mater.

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Metal-free graphitic carbon nitride (g-C3N4) has become one of the most up-and-coming photocatalyst candidates for the hydrogen evolution reaction. However, the improvement in photocatalytic property is strongly suppressed by the limited active reaction sites due to the bulk microstructure of g-C3N4. On this basis, we exploit a moderate and economical approach to prepare an ordered and one-dimensionally ultralong carbon nitride nanotube (CN-NT) via the in-air chemical vapor deposition (CVD) with SiO2 nanofiber templates synthesized by electrostatic spinning. Due to the uniform size, fluffiness, and easy removal, SiO2 nanofiber templates are conducive to prepare ordered and tubular CN-NT. The obtained CN-NT sample exhibits an excellent photocatalytic hydrogen evolution rate (HER) of 4605.2 μmol·h–1·g–1 under visible light, which is 33.4 times higher than that of the original bulk g-C3N4. The apparent quantum efficiency reaches 6.49% at 420 nm. The enhancement in the photocatalytic activity is ascribed to the increased specific surface area, faster electron transfer pathway, advanced light absorption ability, and furthermore the lower recombination rate of photogenerated electrons.

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One-pot fabrication of hollow SiO2 nanowires via an electrospinning technique

Cited by 34 publications

References 10 publications

SiO2/ZnO Composite Hollow Sub-Micron Fibers: Fabrication from Facile Single Capillary Electrospinning and Their Photoluminescence Properties

SiO2/ZnO Composite Hollow Sub-Micron Fibers: Fabrication from Facile Single Capillary Electrospinning and Their Photoluminescence Properties

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

Ordered and Ultralong Graphitic Carbon Nitride Nanotubes Obtained via In-Air CVD for Enhanced Photocatalytic Hydrogen Evolution

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