Hollow Au@TiO<sub>2</sub> porous electrospun nanofibers for catalytic applications

Kumar, Labeesh; Singh, Sajan; Horechyy, Andriy; Hübner, René; Albrecht, Victoria; Weißpflog, Janek; Schwarz, Simona; Puneet, Puhup; Nandan, Bhanu

doi:10.1039/c9ra10487a

Cited by 18 publications

(9 citation statements)

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“…et al(171) reported a kind of catalytic active porous and hollow TiO 2 nanofiber coated with gold NPs by sol-gel chemistry and coaxial electrospinning. The resultant Au@TiO 2 porous hollow nanofibers show good catalytic activity and recyclability.…”

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confidence: 99%

Structural design toward functional materials by electrospinning: A review

et al. 2020

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Electrospinning as one of the most versatile technologies have attracted a lot of scientists’ interests in past decades due to its great diversity of fabricating nanofibers featuring high aspect ratio, large specific surface area, flexibility, structural abundance, and surface functionality. Remarkable progress has been made in terms of the versatile structures of electrospun fibers and great functionalities to enable a broad spectrum of applications. In this article, the electrospun fibers with different structures and their applications are reviewed. First, several kinds of electrospun fibers with different structures are presented. Then the applications of various structural electrospun fibers in different fields, including catalysis, drug release, batteries, and supercapacitors, are reviewed. Finally, the application prospect and main challenges of electrospun fibers are discussed. We hope that this review will provide readers with a comprehensive understanding of the structural design and applications of electrospun fibers in different fields.

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confidence: 99%

Structural design toward functional materials by electrospinning: A review

et al. 2020

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“…The small-sized photocatalysts tend to be trapped together in the effluent, which eventually reduces the number of remaining catalysts in the system. Catalysts reclamation procedures such as centrifugation [ 9 ], gravitational sedimentation [ 10 ], and filtration [ 11 ] are also required in order to collect the lost catalysts. In long-term application, this might have an impact on the operational cost and impede the overall performance as the recyclability of the photocatalysts are reduced.…”

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confidence: 99%

Development of Free-Standing Titanium Dioxide Hollow Nanofibers Photocatalyst with Enhanced Recyclability

et al. 2022

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Titanium dioxide hollow nanofibers (THN) are excellent photocatalysts for the photodegradation of Bisphenol A (BPA) due to their extensive surface area and good optical properties. A template synthesis technique is typically employed to produce titanium dioxide hollow nanofibers. This process, however, involves a calcination procedure at high temperatures that yields powder-form photocatalysts that require post-recovery treatment before recycling. Meanwhile, the immobilization of photocatalysts on/into a membrane has been reported to reduce the active surface area. Novel free-standing TiO2 hollow nanofibers were developed to overcome those shortcomings. The free-standing photocatalyst containing 0.75 g of THN (FS-THN-75) exhibited good adherence and connectivity between the nanofibers. The recyclability of FS-THN-75 outperformed the THN calcined at 600 °C (THN-600), which retained 80% of its original weight while maintaining excellent degradation performance. This study recommends the potential application of free-standing TiO2 hollow nanofibers as high potential novel photocatalysts for the treatment of BPA in wastewater.

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“…[35][36][37] Their large specific surface makes them well-suited for diverse applications such as filters, catalysts, bioengineering, tissue engineering, and wearables. [38][39][40][41] For in vivo applications, it is reasonable to use nontoxic or low-toxic solvents for processing, such as dimethyl sulfoxide (DMSO), and polymers which can be dissolved in it. [42] An ideal candidate is polyacrylonitrile (PAN), being unambiguously spinnable from DMSO and not showing cell toxicity.…”

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confidence: 99%

Optical Index Matching, Flexible Electrospun Substrates for Seamless Organic Photocapacitive Sensors

Böhm

Habashy

Abdullaeva

et al. 2021

Physica Status Solidi (b)

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Recent advances in optoelectronics are often based on thin‐film organic semiconductors. Interesting organic semiconductors are given by squaraines, small molecules that show excitonic coupling with visible light and are thus suitable for applications in solar cells and light sensors. While such squaraine thin films have already been proven to be suitable for stimulation of neuronal model cells, the integration into, e.g., the human eye to support blind people necessitates forming thin layers on seamless substrates. Herein, squaraine films are spin‐coated on electrospun nanofiber mats and nanomembranes, prepared from polyacrylonitrile, and made conductive by spin coating with poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The fibrous non‐woven texture of the nanofiber mats and membranes alters the thin film formation of the squaraine compound considerably compared with preparation on planar, nonsoaking substrates such as glass and polyethylene terephthalate (PET) foil demanding further engineering regarding material's choice and processing conditions.

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Hollow Au@TiO₂ porous electrospun nanofibers for catalytic applications

Abstract: Catalytically active porous and hollow titania nanofibers encapsulating gold nanoparticles were fabricated using a combination of sol–gel chemistry and coaxial electrospinning technique.

Cited by 18 publications

References 64 publications

Structural design toward functional materials by electrospinning: A review

Structural design toward functional materials by electrospinning: A review

Development of Free-Standing Titanium Dioxide Hollow Nanofibers Photocatalyst with Enhanced Recyclability

Optical Index Matching, Flexible Electrospun Substrates for Seamless Organic Photocapacitive Sensors

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Hollow Au@TiO2 porous electrospun nanofibers for catalytic applications

Abstract: Catalytically active porous and hollow titania nanofibers encapsulating gold nanoparticles were fabricated using a combination of sol–gel chemistry and coaxial electrospinning technique.

Cited by 18 publications

References 64 publications

Structural design toward functional materials by electrospinning: A review

Structural design toward functional materials by electrospinning: A review

Development of Free-Standing Titanium Dioxide Hollow Nanofibers Photocatalyst with Enhanced Recyclability

Optical Index Matching, Flexible Electrospun Substrates for Seamless Organic Photocapacitive Sensors

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Hollow Au@TiO₂ porous electrospun nanofibers for catalytic applications