ZnO Nanofiber and Nanoparticle Synthesized Through Electrospinning and Their Photocatalytic Activity Under Visible Light

Liu, Haiqing; Yang, Jizhong; Liang, Jianhe; Huang, Yingxing; Tang, Chao-Wei

doi:10.1002/9780470588246.ch36

Cited by 6 publications

(7 citation statements)

References 21 publications

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“…surface area and density of defects in conjunction with thermal treatment [27]. To unveil the dependency of surface area and density of defects on PCA, we have chosen ZnO as a model semiconductor as it is vastly studied in the context of PCA [10,16,18,[28][29][30][31][32][33][34]. While reducing the dimensions of the catalysts (increasing the specific surface area), an increase in the density of surface states is inevitable due to the dangling orbitals [35], in addition to intrinsic lattice defects [36].…”

Section: Introductionmentioning

confidence: 99%

Transformation of polymer-ZnO core–shell nanofibers into ZnO hollow nanofibers: Intrinsic defect reorganization in ZnO and its influence on the photocatalysis

Kayacı

Vempati

Özgit-Akgün

et al. 2015

Applied Catalysis B: Environmental

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a b s t r a c tPhotocatalytic activity (PCA) on semiconductors is known to be majorly influenced by specific surface area and intrinsic lattice defects of the catalyst. In this report, we tested the efficiencies of 1D ZnO catalysts of varying fiber diameter (80 nm and 650 nm of inner diameter) in two formats, viz. core-shell and hollow nanofibers, where the former is calcined to yield the latter. These nanofibrous catalysts were produced by combining electrospinning and atomic layer deposition processes which were then subjected to thorough characterization including photoluminescence (PL) unveiling the details of intrinsic defects/densities. During the thermal treatment, intrinsic defects are reorganized and as a result a new PL band is observed apart from some significant changes in the intensities of other emissions. The densities of various intrinsic defects from PL are compared for all samples and juxtaposed with the PCA. Careful scrutiny of the various results suggested an anti-correlation between surface area and PCA; i.e., higher surface area does not necessarily imply better PCA. Beyond a limit, the most deterministic factor would be the density of surface defects rather than the specific surface area. The results of this study enable the researchers to fabricate 1D semiconductor photocatalysts while striking the balance between surface area and density of defects.

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Section: Introductionmentioning

confidence: 99%

Transformation of polymer-ZnO core–shell nanofibers into ZnO hollow nanofibers: Intrinsic defect reorganization in ZnO and its influence on the photocatalysis

Kayacı

Vempati

Özgit-Akgün

et al. 2015

Applied Catalysis B: Environmental

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“…Electrospun nano-fibres are considered as a promising tool for versatile applications due to some extraordinary features, such as high specific surface area, high porosity, and low fabric weight [112]. Recent research has been focused on developing nano-fibres from nano-particles, by mixing them with polymer solutions [154,155]. These nano-fibre materials have attracted much attention in various fields including tissue engineering, wound dressing, blood vessel regeneration, composite materials, filtration and chemical sensors [156–159].…”

Section: Novel Technologies For Advanced Cpcmentioning

confidence: 99%

Advances and applications of chemical protective clothing system

Bhuiyan

Wang

Shaid

et al. 2018

Journal of Industrial Textiles

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Protection is obligatory for the safety of people in certain occupations where they might be exposed to hazardous chemicals. This review provides an overview of chemical protective clothing, along with its necessity during industrial and military operations as well as in response to acts of terror. Moreover, chemical protective or barrier suits are illustrated and explained including their types, selection processes based on chemical hazards, working environments, and various materials available for the fabrication of effective barrier clothing. Additionally, this review elucidates current research gaps, while underscoring the challenges facing recently developed chemical protective clothing, by compiling relevant research onto a single platform. Besides, this review includes and delineates future trends in chemical protective outfits based on electro-spun nano-fibre technology involved in both detection and decomposition of poisonous chemical agents that come in contact with clothing material, and the integration of selectively permeable membrane technology to discriminately block hazardous chemicals.

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“…Environmental problems such as air and water pollution have provided the impetus for sustained fundamental and applied research in the area of environmental remediation [139][140][141][142][143][144]. With the steady and fast growing field of nanoscience and nanotechnology, nanostructured ceramics like zinc oxide and titanium oxide has become a promising photocatalyst for its high catalytic activity, low cost, and environmental friendliness [50,51,55,57, Electrospinning ceramic nanofibers have extremely high surface area due to its small sizes, and further provide channels for quick charge transfer due to its 1D nanostructures.…”

Section: Photo Catalystmentioning

confidence: 99%

Electrospinning of ceramic nanofibers: Fabrication, assembly and applications

Wu¹,

Pan²,

Lin³

et al. 2012

J Adv Ceram

252

108

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This paper provides a brief review of current research activities that focus on the synthesis and controlled assembly of inorganic nano bers by electrospinning, their electrical, optical and magnetic properties, as well as their applications in various areas including sensors, catalysts, batteries, filters and separators. We begin with a brief introduction to electrospinning technology and a brief method to produce ceramic nanofibers from electrospinning. We then discuss approaches to the controlled assembly and patterning of electrospun ceramic nanofibers. We continue with a highlight of some recent applications enabled by electrospun ceramic nano bers, with a focus on the physical properties of functional ceramic nanofibers as well as their applications in energy and environmental technologies. In the end, we conclude this review with some perspectives on the future directions and implications for this new class of functional nanomaterials. It is expected that this review paper can help the readers quickly become acquainted with the basic principles and particularly the experimental procedure for preparing and assembly of 1D ceramic nanofiber and its arrays.

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ZnO Nanofiber and Nanoparticle Synthesized Through Electrospinning and Their Photocatalytic Activity Under Visible Light

Cited by 6 publications

References 21 publications

Transformation of polymer-ZnO core–shell nanofibers into ZnO hollow nanofibers: Intrinsic defect reorganization in ZnO and its influence on the photocatalysis

Transformation of polymer-ZnO core–shell nanofibers into ZnO hollow nanofibers: Intrinsic defect reorganization in ZnO and its influence on the photocatalysis

Advances and applications of chemical protective clothing system

Electrospinning of ceramic nanofibers: Fabrication, assembly and applications

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