Effects of electrospinning parameters on titanium dioxide nanofibers diameter and morphology: An investigation by Box–Wilson central composite design (CCD)

Sarlak, Nahid; Nejad, Mohammad Amin Farahmand; Shakhesi, Saeed; Shabani, Keyvan

doi:10.1016/j.cej.2012.08.087

Cited by 67 publications

(38 citation statements)

References 20 publications

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“…Lee et al [30] found that when the PVP concentration is increased from 0.04 g/ml to 0.10 ml, the fibers size increase significantly from 125 nm to 275 nm while the TTIP concentration raises from 0.12 g/ml to 0.18 g/ml results in increase of the fiber diameter from 200 nm to 280 nm. This has been proved later by [11] and [16]. Thus, the viscosity is greatly affected by the polymer concentration in the spin dopes.…”

Section: Spin Dopes Viscositymentioning

confidence: 65%

“…Thus, the feeding rate should provide adequate time for the solvent to evaporate before reaching collector. Moreover, it is suggested that the optimized morphology of TiO 2 composite nanofibers can be obtained at 0.70 mL/hr [16].…”

Section: Feeding Ratementioning

confidence: 99%

“…Thus, to fabricate a continuous smaller fibers, the supplied voltage should be within 15-20 kV. The optimized TiO 2 nanofibers can be generated with the supplied voltage of 18.4460 kV based on the morphology analysis [16].…”

Section: Supplied Voltagementioning

confidence: 99%

“…Hence, electrospinning has engrossed the attention of the researchers. Electrospinning appears as a novel, versatile, simple, cost effective and straightforward technique to produce fibers with diameters down to tens of nanometers, from various materials such as polymers, metal oxides and composites [11,14,16]. In a typical electrospinning system, there are three basic components to be used: a high voltage supply, a needle of small diameter with syringe that is connected to a syringe pump and a grounded metal collector [17].…”

Section: Introductionmentioning

confidence: 99%

“…One dimensional nanoarchitectures TiO 2 offers faster electron transportation rate, high porosity and larger surface [13]. One dimensional nanostructures TiO 2 such as whiskers, rods, tubes, wires, belts, spirals and fibers have been produced by sol-gel synthesis, electrochemical fabrication, dip-coating, hydrothermal technique, electroless deposition, crystallize growing method and electrospinning [13][14][15][16]. To date, TiO 2 nanofibers are prepared by using crystallize growing method and electrospinning.…”

Section: Introductionmentioning

confidence: 99%

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The Morphology of Electrospun Titanium Dioxide Nanofibers and Its Influencing Factors

Tang

Bolong

Saad

et al. 2016

MATEC Web of Conferences

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Abstract. Titanium dioxide (TiO2) has high photocatalytic activity and it is extensively applied in solar cell technology and environmental science. Electrospinning is acknowledged as the most versatile technique to fabricate nanofibers such as metal oxide nanofibers. Titanium dioxide nanofibers are generally prepared by electrospinning organic solutions containing alkoxide precursors and a carrier polymer with high voltage supply. The paper discusses on electrospun TiO2 nanofibers including the spin dopes preparation history, influencing factors on fiber morphology and fiber characterizations. In particular, the parameters such as spin dopes viscosity, supplied voltage, feeding rate and effect of temperature that affect the morphology of the nanofibers are emphasized. Based on several studies, smaller diameter of TiO2 nanofibers can be produced with lower viscosity solution, higher voltage and lower feeding rate. The heat treatment of 500 o C reduced the fiber size and produces crystallized anatase TiO2 nanofibers.

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Section: Spin Dopes Viscositymentioning

confidence: 65%

Section: Feeding Ratementioning

confidence: 99%

Section: Supplied Voltagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The Morphology of Electrospun Titanium Dioxide Nanofibers and Its Influencing Factors

Tang

Bolong

Saad

et al. 2016

MATEC Web of Conferences

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Optimization of biodegradable PEG/PLGA nanofiber mats electrospinning process for anti‐adhesion application

Zhao

Zhu

Zhang³

et al. 2018

J of Applied Polymer Sci

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Electrospinning is a direct, continuous, and useful technique to prepare nanofiber by applying electrostatic forces. In this study, poly(lactic‐co‐glycolic acid)/poly(ethylene glycol) (PLGA/PEG) nanofiber mats were prepared, and electrospinning process was optimized to obtain appropriate fiber diameter and hydrophilicity for anti‐adhesion application. Optimization of applied voltage, PEG content, and feeding rate was investigated using response surface methodology. A total of 15 trials were designed to optimize the parameters. Fiber diameter was measured using scanning electron microscopy. Individual and interactive effects of the solution properties were determined. Moreover, the adequacy of the models was verified by validation experiments. For anti‐adhesion test, a nanofiber mat was produced based on the suggested optimum electrospinning conditions. Results showed that optimum fiber diameters were obtained using 7.5% PEG content, applied voltage of 19 kV, and flow rate of 3 mL/h. Experimental results were in good agreement with the predicted fiber diameters. Furthermore, a rat model of sidewall defect‐cecum abrasion was employed to investigate the efficacy of PEG/PLGA in preventing postoperative peritoneal adhesions. Hence, this study provides an overview on the fabrication of PLGA/PEG nanofibers with targeted diameter, which may be used in anti‐adhesion. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46282.

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Development of optimized triaxially electrospun titania nanofiber‐in‐nanotube core‐shell structure

Khan

Ahmad

Arshad

et al. 2021

J of Applied Polymer Sci

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One dimensional (1D) nanostructures and its derivatives can be manipulated to serve special functions like hollow structure, and higher surface area. 1D TiO 2 nanotube-in-nanofibers (NF@NT) are developed through triaxial electrospinning followed by a calcination process. A blended solution of polyvinyl pyrrolidone and tetra-butyl titanate is used in outer and inner layers of nanofibers, respectively, while paraffin oil is used in the middle layer. The optimized triaxial nanofibers of 669.4 ± 52.43 nm are developed at 7.5 w/w% concentration, 28 kV applied voltage, and 24 cm spinning distance. TiO 2 NF@NT structure is obtained through calcination of optimized triaxial nanofibers at 550 C. Subsequently, the morphology of TiO 2 NF@NT and its uniform diameter distribution is confirmed through scanning electron microscopy. Fourier-transform infrared spectroscopy results indicates the formation of TiO 2 NF@NT. X-Rays diffraction pattern peaks also reveals the presence of both anatase and rutile crystalline phases. The presence of only titanium (Ti) and oxygen (O) elements in the TiO 2 NF@NT is confirmed through energy dispersive X-ray spectroscopy. Brunauer-Emmett-Teller analysis indicates that TiO 2 NF@NT has a higher specific surface area of~141.68 m 2 /g compared with the solid TiO 2 nanofiber (~75.31 m 2 /g). This study can be adopted to develop TiO 2 NF@NT for wide range of application.

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Effects of electrospinning parameters on titanium dioxide nanofibers diameter and morphology: An investigation by Box–Wilson central composite design (CCD)

Cited by 67 publications

References 20 publications

The Morphology of Electrospun Titanium Dioxide Nanofibers and Its Influencing Factors

The Morphology of Electrospun Titanium Dioxide Nanofibers and Its Influencing Factors

Optimization of biodegradable PEG/PLGA nanofiber mats electrospinning process for anti‐adhesion application

Development of optimized triaxially electrospun titania nanofiber‐in‐nanotube core‐shell structure

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