Electro-spinning fabrication of nitrogen, phosphorus co-doped porous carbon nanofiber as an electro-chemiluminescent sensor for the determination of cyproheptadine

Cheng, Hao; Zhou, Zhengyuan; Liu, Tao

doi:10.1039/d0ra02115f

“…Carbon nanofibers are often prepared from electrospun polyacrylonitrile (PAN) nanofibers or nanofiber mats [1][2][3]. Such carbon nanofiber mats are used in a broad range of applications, such as water filtration [4], air filtration [5], the electrodes of superconductors [6], sensors [7], etc., often doped or coated with diverse nanoparticles to reach the desired properties [8]. Generally, PAN can be electrospun with needle-based or needleless electrospinning techniques, purely, blended with other polymers or doped with nanoparticles, and even as Janus nanofibers [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

Storck

¹

,

Brockhagen

²

,

Sabantina

³

et al. 2021

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Polyacrylonitrile (PAN) nanofiber mats are typical precursors for carbon nanofibers. They can be fixed or even elongated during stabilization and subsequent carbonization to gain straight, mechanically robust carbon nanofibers. These processes necessitate additional equipment or are—if the nanofiber mats are just fixed at the edges—prone to resulting in the specimens breaking, due to an uneven force distribution. Hence, we showed in a previous study that electrospinning PAN on aluminum foils and stabilizing them fixed on these substrates, is a suitable solution to keep the desired morphology after stabilization and incipient carbonization. Here, we report on the influence of different metallic and semiconductor substrates on the physical and chemical properties of the nanofiber mats after stabilization and carbonization at temperatures up to 1200 °C. For stabilization on a metal substrate, an optimum stabilization temperature of slightly above 240 °C was found, approached with a heating rate of 0.25 K/min. Independent from the substrate material, SEM images revealed less defect fibers in the nanofiber mats stabilized and incipiently carbonized on a metal foil. Finally, high-temperature carbonization on different substrates is shown to allow for producing metal/carbon nano-composites.

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“…Even any material with a carbon backbone can be used as a precursor for carbon materials, PAN is the most commonly used carbon precursor due to its high carbon yield up to 56%, flexibility for maintaining the structure, excellent mechanical and electrochemical properties [48,49]. PAN based carbon nanofibers have been used in many fields including electrodes [50–56], supercapacitors [57–63], fuel cells [64–67], sensors [68–72], solar cells [73–75], biomedical applications [76] and tissue engineering applications [77–81]. For instance, Kumar et al.…”

Section: Introductionmentioning

confidence: 99%

“…In case of sensor applications, Cheng et al. [68] produced n and p doped carbon nanofibers with electrospinning that had a high sensitivity, low detection limit, wide detection range and good electrocatalytic activity determination. Cho et al.…”

Section: Introductionmentioning

confidence: 99%

“…Even any material with a carbon backbone can be used as a precursor for carbon materials, PAN is the most commonly used carbon precursor due to its high carbon yield up to 56%, flexibility for maintaining the structure, excellent mechanical and electrochemical properties [48,49]. PAN based carbon nanofibers have been used in many fields including electrodes [50][51][52][53][54][55][56], supercapacitors [57][58][59][60][61][62][63], fuel cells [64][65][66][67], sensors [68][69][70][71][72], solar cells [73][74][75], biomedical applications [76] and tissue engineering applications [77][78][79][80][81]. For instance, Kumar et al [50] used carbon nanofiber from electrospun PAN precursor for anode material for lithium ion batteries which showed high initial discharge capacity of 826 mAh g À1 at 200 mA g À1 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A statistical analysis on the influence of process and solution properties on centrifugally spun nanofiber morphology

Atıcı

¹

,

Ünlü

²

,

Yanılmaz

³

2021

Journal of Industrial Textiles

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Centrifugal spinning is a fast and safe nanofiber production technique and polyacrylonitrile (PAN) nanofibers have been widely studied for many applications including energy storage, filtration, sensors, and biomedical applications. Nanofiber morphology, specific surface area, porosity and average fiber diameter are important to determine the performance of nanofibers in these fields. In centrifugal spinning, nanofiber morphology and average fiber diameter are influenced by solution properties and process parameters including rotational speed, feeding rate, collector distance, and nozzle diameter. In this study, the effect of solution concentration, rotational speed, feeding rate, collector distance and nozzle diameter on average fiber diameter and fiber morphology were studied and statistical analysis was performed to determine the main factors. Optimum solution and process parameters were determined as well. Increased average fiber diameter was seen with increasing polymer concentration and nanofibers produced at 4000 rpm with the feeding rate of 60 ml/h had the lowest average fiber diameter for all studied nozzle sizes (0.3 mm, 0.5 mm and 0.8 mm). 8 wt. % PAN solution was centrifugally spun with the rotational speed of 4000 rpm, feeding rate of 60 ml/h, collector distance of 20 cm and nozzle diameter of 0.3 mm and bead free nanofibers with the average fiber diameter of 680 ± 87 nm was observed.

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“…When the excited state returns to the ground state [24][25][26], it produces luminescence. The specific reaction process is as shown in formulas ( 1)-( 5) as follows:…”

Section: Ec and Eclmentioning

confidence: 99%

Electrospun Nanofibers with High Specific Surface Area to Prepare Modified Electrodes for Electrochemiluminescence Detection of Azithromycin

Cheng

¹

,

Li

²

,

Li

³

et al. 2021

Journal of Nanomaterials

Self Cite

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Polyacrylonitrile (PAN) and (CH3COO)2Zn were used as raw materials, and carbon nanofibers (CNFs) with high specific surface area were successfully prepared by an electrospinning method. A new method of electrochemiluminescence detection of azithromycin was established by modifying the glassy carbon electrode (GCE). Under the optimal conditions, the electrochemical behavior and electrochemiluminescence behavior of the Ru(bpy)32+-AZM system on the modified electrode were investigated. Owing to the large specific area, more active sites, and promotion of electron transfer, the sensor exhibits high electrocatalytic activity, high sensitivity, a good linear relationship ranging from 8.0 × 10 − 8 to 1.0 × 10 − 4 mol/L, and a low detection limit ( 6.52 × 10 − 8 mol/L). In addition, the good recoveries indicate that the sensor was a promising device for the detection of azithromycin in real samples.

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Electro-spinning fabrication of nitrogen, phosphorus co-doped porous carbon nanofiber as an electro-chemiluminescent sensor for the determination of cyproheptadine

Abstract: Nitrogen, phosphorus co-doped porous carbon nanofiber is as electrode modified material to fabricate an electro-chemiluminescent sensor for detecting cyproheptadine.

Cited by 16 publications

References 46 publications

Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

A statistical analysis on the influence of process and solution properties on centrifugally spun nanofiber morphology

Electrospun Nanofibers with High Specific Surface Area to Prepare Modified Electrodes for Electrochemiluminescence Detection of Azithromycin

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