Fabrication of Macroscopically Flexible and Highly Porous 3D Semiconductor Networks from Interpenetrating Nanostructures by a Simple Flame Transport Approach

Mishra, Yogendra Kumar; Kaps, Sören; Schuchardt, Arnim; Paulowicz, Ingo; Jin, Xigao; Gedamu, Dawit; Freitag, Stefan; Claus, Maria; Wille, Sebastian; Kovalev, Alexander; Gorb, Stanislav N.; Adelung, Rainer

doi:10.1002/ppsc.201300197

Cited by 282 publications

(247 citation statements)

References 43 publications

(52 reference statements)

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“…These catalysts exhibited good degradation towards RhB dye due to exposing {001} facets and highly porous structures under wide band gap energy and visible light irradiation. [36] Furthermore, we proved that direct growth of BiOCl sheets with polar surfaces onto RGO enhances charge carriers separation, leading to a better photocatalytic activity.…”

Section: Introductionmentioning

confidence: 98%

Size-controlled BiOCl–RGO composites having enhanced photodegradative properties

Kang

Pawar

Pyo

et al. 2015

Journal of Experimental Nanoscience

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Visible light-active bismuth oxychlorideÀreduced graphene oxide (BiOClÀRGO) composite photocatalysts were synthesised using a hydrothermal method at low temperature, and at a low cost. This approach reduced the recombination of electronÀhole pairs and thereby provided more efficient photocatalysts. The size of BiOCl structure was controlled by polyvinylpyrrolidone (PVP) addition. Furthermore, formation of nanosized BiOCl sheets and BiOClÀRGO composites were confirmed by X-ray diffraction, X-ray photoelectron spectroscopy, fieldemission scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. Fabricated BiOClÀRGO composite with PVP exhibited better photocatalytic activity than pure BiOCl grown with and without PVP towards degradation of Rhodamine B (RhB). It was found that the composite photocatalyst degrades RhB completely within 310 min as compared with several hours for pure BiOCl. The improved photocatalytic performance of BiOClÀRGO composite was attributed to its high specific surface area (22.074 m 2 g ¡1 and existence of polar surfaces, compared with 9.831 m 2 g ¡1 for pure BiOCl). The analyses indicated that RGO helped to reduce recombination losses and improve electron transport. It also showed that presence of polar surfaces improved photocatalytic activity of BiOCl. Hence, BiOClÀRGO composite is a promising catalyst for the degradation of organic pollutants under visible light and could be used in applications such as water purification devices.

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Section: Introductionmentioning

confidence: 98%

Size-controlled BiOCl–RGO composites having enhanced photodegradative properties

Kang

Pawar

Pyo

et al. 2015

Journal of Experimental Nanoscience

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“…Flame transport synthesis (FTS) method and its variants 59) mainly require microscale diameter spherical metal particles as precursor materials, sacrificial polymer (e.g., polyvinyl butyral (PVB), etc.) and ethanol for mixing homogeneously in slurry form.…”

Section: Materials Requirementsmentioning

confidence: 99%

“…Recently Adelung and co-workers 58,59) have introduced a very simple and novel flame transport synthesis (FTS) approach which allows facile fabrication of versatile metal oxide nano-microstructures and their macroscopic networks. These FTS synthesized metal oxide nanomicrostructures have already shown promising applications in different directions [60][61][62][63][64][65][66] .…”

Section: Introductionmentioning

confidence: 99%

Versatile Fabrication of Complex Shaped Metal Oxide Nano-Microstructures and Their Interconnected Networks for Multifunctional Applications

Mishra¹,

Kaps²,

Schuchardt³

et al. 2014

KONA

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116

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Metal oxide nano-microstructures are applied in photocatalytic surfaces, sensors or biomedical engineering, proving the versatile utilization of nanotechnology. However, more complex or interconnected nano-microstructures are still seldomly met in practical applications, although they are of higher interest, due to enhanced structural, electronic and piezoelectric properties, as well as several complex biomedical effects, like antiviral characteristics. Here we attempt to present an overview of the novel, facile and cost-efficient flame transport synthesis (FTS) which allows controlled growth of different nano-microstructures and their interconnected networks in a scalable process. Various morphologies of nano-microstructures synthesized by FTS and its variants are demonstrated. These nano-microstructures have shown potential applications in different fields and the most relevant are reviewed here. Fabrication, growth mechanisms and properties of such large and highly porous three-dimensional (3D) interconnected networks of metal oxides (ZnO, SnO 2 , Fe 2 O 3 ) nano-microstructures including carbon based aerographite material using FTS approaches are discussed along with their potential applications.

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“…In addition, ZnO tetrapod [35], microrod/microwire [36,37], porous array [38], matrix [39], and 3D network nanostructure [20,40] have been obtained. At present, many researchers are focusing on constructing devices based on ZnO nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices

et al. 2018

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Unlike conventional bulk or film materials, one-dimensional (1D) semiconducting zinc oxide (ZnO) nanostructures exhibit excellent photoelectric properties including ultrahigh intrinsic photoelectric gain, multiple light confinement, and subwavelength size effects. Compared with polycrystalline thin films, nanowires usually have high phase purity, no grain boundaries, and long-distance order, making them attractive for carrier transport in advanced optoelectronic devices. The properties of one-dimensional nanowires-such as strong optical absorption, light emission, and photoconductive gain-could improve the performance of light-emitting diodes (LEDs), photodetectors, solar cells, nanogenerators, field-effect transistors, and sensors. For example, ZnO nanowires behave as carrier transport channels in photoelectric devices, decreasing the loss of the light-generated carrier. The performance of LEDs and photoelectric detectors based on nanowires can be improved compared with that of devices based on polycrystalline thin films. This article reviews the fabrication methods of 1D ZnO nanostructures-including chemical vapor deposition, hydrothermal reaction, and electrochemical deposition-and the influence of the growth parameters on the growth rate and morphology. Important applications of 1D ZnO nanostructures in optoelectronic devices are described. Several approaches to improve the performance of 1D ZnO-based devices, including surface passivation, localized surface plasmons, and the piezo-phototronic effect, are summarized.

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Fabrication of Macroscopically Flexible and Highly Porous 3D Semiconductor Networks from Interpenetrating Nanostructures by a Simple Flame Transport Approach

Cited by 282 publications

References 43 publications

Size-controlled BiOCl–RGO composites having enhanced photodegradative properties

Size-controlled BiOCl–RGO composites having enhanced photodegradative properties

Versatile Fabrication of Complex Shaped Metal Oxide Nano-Microstructures and Their Interconnected Networks for Multifunctional Applications

One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices

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