Electrospinning synthesis of SiO2-TiO2 hybrid nanofibers with large surface area and excellent photocatalytic activity

Cui, Lei; Song, Yanhua; Wang, Fangke; Ye, Sheng; Zou, Haifeng

doi:10.1016/j.apsusc.2019.05.151

Cited by 49 publications

(26 citation statements)

References 36 publications

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“…On the one hand, the addition of CNOs improved the visible light absorption capacity of TiO2 due to its high electrical conductivity [21,22]. On the other hand, the addition of SiO2 enhanced the dispersibility of the material caused by its large specific surface area and therefore increased the contact rate of the material with photons under visible light [29,30]. In addition, the conduction band (CB) and valence band (VB) of TiO 2 are calculated by following equations:…”

Section: 60 80mentioning

confidence: 99%

Photocatalytic Performance of SiO2/CNOs/TiO2 to Accelerate the Degradation of Rhodamine B under Visible Light

Zhang

Yang

et al. 2019

Nanomaterials

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A silicon dioxide/carbon nano onions/titanium dioxide (SiO2/CNOs/TiO2) composite was synthesized by a simple sol-gel method and characterized by the methods of X-ray diffraction (XRD), scanning electronic microscope (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET), Fourier transform infrared (FTIR), thermogravimetric analysis (TG), differential scanning calorimeter (DSC) and UV-Vis diffuse reflectance spectra (UV-Vis DRS). In this work, the photocatalytic activity of the SiO2/CNOs/TiO2 photocatalyst was assessed by testing the degradation rate of Rhodamine B (RhB) under visible light. The results indicated that the samples exhibited the best photocatalytic activity when the composite consisted of 3% CNOs and the optimum dosage of SiO2/CNOs/TiO2(3%) was 1.5 g/L as evidenced by the highest RhB degradation rate (96%). The SiO2/CNOs/TiO2 composite greatly improved the quantum efficiency of TiO2. This work provides a new option for the modification of subsequent nanocomposite oxide nanoparticles.

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Section: 60 80mentioning

confidence: 99%

Photocatalytic Performance of SiO2/CNOs/TiO2 to Accelerate the Degradation of Rhodamine B under Visible Light

Zhang

Yang

et al. 2019

Nanomaterials

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“…Even though there are many methods for fabricating fibers such as wet spinning, [15][16][17][18][19][20][21] which could be categorized as dry-jet wet spinning [22][23][24] and shear wet spinning, 25 solution blow spinning, 26 emulsion spinning, 27 melt spinning, 28,29 melt blowing, [30][31][32] and rotary jet spinning, 33,34 electrospinning is perhaps the simplest, most straightforward, and cheapest method to manufacture polymer fibers by forcing a polymer solution or polymer melt through a spinneret in an electric field. [35][36][37][38][39][40][41] It is the most decorated fiber spinning technology on this planet so far! A typical electrospinning setup essentially consists of a nozzle attached to a syringe tube containing a polymer solution, syringe pump, high voltage power supply, ground electrode, and collector, as shown in Fig.…”

Section: Electrospinning and The Evolvement Of Core-sheath Fibersmentioning

confidence: 99%

Current methodologies and approaches for the formation of core–sheath polymer fibers for biomedical applications

Muthusubramanian

Edirisinghe

Homer‐Vanniasinkam

et al. 2020

Applied Physics Reviews

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The application of polymer fibers has rocketed to unimaginable heights in recent years and occupies every corner of our day-to-day life, from knitted protective textile clothes to buzzing smartphone electronics. Polymer fibers could be obtained from natural and synthetic polymers at a length scale from the nanometer to micrometer range. These fibers could be formed into different configurations such as single, core-sheath, hollow, blended, or composite according to human needs. Of these several conformations of fibers, core-sheath polymer fibers are an interesting class of materials, which shows superior physical, chemical, and biological properties. In core-sheath fiber structures, one of the components called a core is fully surrounded by the second component known as a sheath. In this format, different polymers can be applied as a sheath over a solid core of another polymer, thus resulting in a variety of modified properties while maintaining the major fiber property. After a brief introduction to core-sheath fibers, this review paper focuses on the development of the electrospinning process to manufacture core-sheath fibers followed by illustrating the current methodology and approaches to form them on a larger scale, suitable for industrial manufacturing and exploitation. Finally, the paper reviews the applications of the core-sheath fibers, in particular, recent studies of core-sheath polymer fibers in tissue engineering (nerve, vascular grafts, cardiomyocytes, bone, tendons, sutures, and wound healing), growth factors and other bioactive component release, and drug delivery. Therefore, core-sheath structures are a revolutionary development in the field of science and technology, becoming a backbone to many emerging technologies and novel opportunities.

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“…In the application of traditional catalysts, there is a method to control the catalyst activity by treating the induced material itself. A quintessential method is the manufacture of TiO 2 (Chen J. et al, 2020) doped composite semiconductor with good catalytic effect, including but not limited to SnO 2 /TiO 2 (Kusior et al, 2018), WO 3 /TiO 2 (Wang et al, 2019), MoO 3 /TiO 2 (Liu et al, 2016), SiO 2 /TiO 2 (Cui et al, 2019), and ZrO 2 /TiO 2 . The development of 2D material catalysts is similar to that of traditional materials.…”

Section: Photocatalytic Properties Of 2d Materialsmentioning

confidence: 99%

A Mini Review of the Preparation and Photocatalytic Properties of Two-Dimensional Materials

et al. 2020

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The successful preparation and application of graphene shows that it is feasible for the materials with a thickness of a single atom or few atomic layers to exist stably in nature. These materials can exhibit unusual physical and chemical properties due to their special dimension effects. At present, researchers have made great achievements in the preparation, characterization, modification, and theoretical research of 2D materials. Because the structure of 2D materials is often similar, it has a certain degree of qualitative versatility. Besides, 2D materials often carry good catalytic performance on account of their more active sites and adjustable harmonic electronic structure. In this review, taking 2D materials as examples [graphene, boron nitride (h-BN), transition metal sulfide and so on], we review the crystal structure and preparation methods of these materials in recent years, focus on their photocatalyst properties (carbon dioxide reduction and hydrogen production), and discuss their applications and development prospects in the future.

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Electrospinning synthesis of SiO2-TiO2 hybrid nanofibers with large surface area and excellent photocatalytic activity

Cited by 49 publications

References 36 publications

Photocatalytic Performance of SiO2/CNOs/TiO2 to Accelerate the Degradation of Rhodamine B under Visible Light

Photocatalytic Performance of SiO2/CNOs/TiO2 to Accelerate the Degradation of Rhodamine B under Visible Light

Current methodologies and approaches for the formation of core–sheath polymer fibers for biomedical applications

A Mini Review of the Preparation and Photocatalytic Properties of Two-Dimensional Materials

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