The Electrospun Ceramic Hollow Nanofibers

Abstract

Hollow nanofibers are largely gaining interest from the scientific community for diverse applications in the fields of sensing, energy, health, and environment. The main reasons are: their extensive surface area that increases the possibilities of engineering, their larger accessible active area, their porosity, and their sensitivity. In particular, semiconductor ceramic hollow nanofibers show greater space charge modulation depth, higher electronic transport properties, and shorter ion or electron diffusion length (e.g., for an enhanced charging–discharging rate). In this review, we discuss and introduce the latest developments of ceramic hollow nanofiber materials in terms of synthesis approaches. Particularly, electrospinning derivatives will be highlighted. The electrospun ceramic hollow nanofibers will be reviewed with respect to their most widely studied components, i.e., metal oxides. These nanostructures have been mainly suggested for energy and environmental remediation. Despite the various advantages of such one dimensional (1D) nanostructures, their fabrication strategies need to be improved to increase their practical use. The domain of nanofabrication is still advancing, and its predictable shortcomings and bottlenecks must be identified and addressed. Inconsistency of the hollow nanostructure with regard to their composition and dimensions could be one of such challenges. Moreover, their poor scalability hinders their wide applicability for commercialization and industrial use.

Zeolitic imidazolate framework derived ZnCo2O4 hollow tubular nanofibers for long-life supercapacitors

“…Hollow tubular structure materials have been studied extensively as a class of the structural electrodes materials in recent times. [18][19][20] Especially, one-dimensional (1D) hollow tubular nanobers (HTNs) structures contain merits including high surface area, low density and functional thin shell endowing them adequate potential to be applied in energy storage eld. 21,22 Nevertheless, the synthesis process of hollow tubular structures usually need hard templates or relatively complicated synthesis steps, which usually creates additional consumption.…”

An Overview of the Water Remediation Potential of Nanomaterials and Their Ecotoxicological Impacts

“…Moreover, extensive available surface area and flexibility in surface functionality optimize the adsorptive nature and selectivity of the nanofibrous membranes. The constituting nanofibers could be as neat, chemically functionalized, nanocomposite, and even biofunctionalized [46][47][48][49][50]. For instance, a PES electrospun nanofiber mat overlaid on a poly(ethylene terephthalate) (PET) non-woven was evaluated as a membrane for liquid filtration and removal of micro-and submicron sized polystyrene (PS) particles from water [51].…”

Synthesis of Hollow Nanofibers and Application on Detecting SF6 Decomposing Products

“…Up to now, template synthesis, self-assembly, and electrospinning technique have been employed for producing the hollow structured nanofibers (Khajavi and Abbasipour, 2012;Wang and Lu, 2012;Kim et al, 2019). Among them, the template synthesis method is more adaptable, because it is easy to control the width of the middle hollow (Homaeigohar et al, 2017). As shown in Figure 1A, the template is mostly prepared by electrospining.…”