Fabrication of magnetic polybenzoxazine-based carbon nanofibers with Fe3O4 inclusions with a hierarchical porous structure for water treatment

Si, Yang; Ren, Tao; Li, Yan; Yu, Jianyong

doi:10.1016/j.carbon.2012.06.059

Cited by 139 publications

(92 citation statements)

References 56 publications

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“…The resultant fibers with an average diameter of 130 nm are comprised of CNFs with embedded Fe 3 O 4 nanocrystals, and could have a high surface area of 1885 m 2 g -1 and a porosity of 2.3 cm 3 g -1 . The Fe 3 O 4 loaded CNFs exhibited efficient adsorption for organic dyes in water and excellent magnetic separation performance, suggesting their use as a promising adsorbent for water treatment, and also provided new insight into the design and development of a carbon nanomaterial based on a PBZ precursor [92].…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 98%

Hierarchical porous carbon nanofibers via electrospinning

Raza¹,

Wang²,

Yang³

et al. 2014

Carbon letters

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Carbon nanofibers (CNFs) with diameters in the submicron and nanometer range exhibit high specific surface area, hierarchically porous structure, flexibility, and super strength which allow them to be used in the electrode materials of energy storage devices, and as hybrid-type filler in carbon fiber reinforced plastics and bone tissue scaffold. Unlike catalytic synthesis and other methods, electrospinning of various polymeric precursors followed by stabilization and carbonization has become a straightforward and convenient way to fabricate continuous CNFs. This paper is a comprehensive and brief review on the latest advances made in the development of electrospun CNFs with major focus on the promising applications accomplished by appropriately regulating the microstructural, mechanical, and electrical properties of as-spun CNFs. Additionally, the article describes the various strategies to make a variety of carbon CNFs for energy conversion and storage, catalysis, sensor, adsorption/separation, and biomedical applications. It is envisioned that electrospun CNFs will be the key materials of green science and technology through close collaborations with carbon fibers and carbon nanotubes.

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Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 98%

Hierarchical porous carbon nanofibers via electrospinning

Raza¹,

Wang²,

Yang³

et al. 2014

Carbon letters

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“…Si et al reported on the synthesis of 1D mesoporous polybenzoxazine (PBZ)-based Fe 3 O 4 @carbon nanofibers (CNFs) which exhibit an extremely high surface area as well as efficient adsorption for organic dyes and facilely magnetic separation property [30]. Further, the same group reported on the fabrication of 1D PBZ-based magnetic CNFs with hierarchical porous structure by a combination of electrospinning and in situ polymerization [31]. In addition, Ren et al reported on the fabrication of hierarchical porous magnetic CNFs which comprised graphitic fibers and Fe 3 O 4 nanocrystals where electrospun polyacrylonitrile/polybenzoxazine (PAN/PBZ) fibers are employed as a composite carbon source [32].…”

Section: Introductionmentioning

confidence: 98%

Main-chain polybenzoxazine nanofibers via electrospinning

Ertaş¹,

Uyar²

2014

Polymer

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a b s t r a c tHere we report the successful production of nanofibers from main-chain polybenzoxazines (MCPBz) via electrospinning without using any other carrier polymer matrix. Two different types of MCPBz (PBA-ad6 and PBA-ad12) were synthesized by using two types of difunctional amine (1,6-diaminohexane and 1,12-diaminododecane), bisphenol-A, and paraformaldehyde as starting materials through a Mannich reaction.1 H NMR and FTIR spectroscopy studies have confirmed the chemical structures of the two MCPBz.We were able to obtain highly concentrated homogeneous solutions of the two MCPBz in chloroform/ N,N-dimethylformamide (DMF) (4:1, v/v) solvent system. The electrospinning conditions were optimized in order to produce bead-free, uniform and continuous nanofibers from these two MCPBz by varying the concentrations of PBA-ad6 (30e45%, w/v) and PBA-ad12 (15e20%, w/v) in chloroform/DMF (4:1, v/v). The bead-free fiber morphology was evidenced under SEM imaging when PBA-ad6 and PBAad12 were electrospun at solution concentration of 40% and 18% (w/v), respectively. The nanofibrous mats of MCPBz were obtained as free-standing material, yet, PBA-ad12 mat was more flexible than and PBA-ad6 mat. Furthermore, the curing studies of these MCPBz nanofibrous mats were performed to obtain cross-linked materials.

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“…Among these techniques, electrospinning is regarded as a simple and versatile top-down approach for fabrication of uniform nanofibers in a continuous process and at a long length scale [16][17][18][19][20]. Electrospun nanofibrous membranes possess several fascinating features that make them very attractive in an air filtration area, such as remarkable specific surface area, high open porosity, and interconnected porous structure [6,[20][21][22][23]. Taking advantage of these intriguing characters, electrospun nanofibrous membranes are of huge interest for use in air filters.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofibers for Air Filtration

Wang

Mao

Zhang

et al. 2014

Nanostructure Science and Technology

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Fine particle pollution resulting from the rapid urbanization and industrialization is one of the most serious sources of air pollution. In response to the recognized threats of fine particles to the environment and human bodies, the pursuit of novel, high-performance, energy saving, and environmentally friendly filter medium has gained great interest in recent years. Electrospun nanofibrous membranes, as one of the utmost promising and versatile filter media for fine particle filtration, possess several fascinating features such as remarkable specific surface area, high open porosity, and interconnected porous structure. More significantly, electrospun nanofiber-based filter media are expected to have extremely high filtration efficiency for fine particle and relatively low pressure drop due to the unique structure of electrospun nanofibers. In this chapter, we summarize the recent progress in the development of electrospun nanofibrous membranes (e.g., organic, hybrid, inorganic) for fine particle filtration, describe the types of nanofibrous materials that have been developed, and discuss their structure variables and particle filtration performance in detail. This chapter may trigger the development of advanced nanofibrous filter media for fine particle emissions from anthropogenic polluted atmosphere.

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Fabrication of magnetic polybenzoxazine-based carbon nanofibers with Fe3O4 inclusions with a hierarchical porous structure for water treatment

Cited by 139 publications

References 56 publications

Hierarchical porous carbon nanofibers via electrospinning

Hierarchical porous carbon nanofibers via electrospinning

Main-chain polybenzoxazine nanofibers via electrospinning

Electrospun Nanofibers for Air Filtration

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