Dyeing of Recycled Electrospun Polyamide 6 Nanofibers: Implications of Dye Particle Size

Metwally, Bahaa S.; Rashed, Samah A.; El-Sheikh, M. N.; Hamouda, Asmaa S.

doi:10.1007/s12221-023-00165-0

Cited by 10 publications

(1 citation statement)

References 85 publications

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“…Colorful organic dyes are extensively utilized in numerous industries, such as textiles, food coloring, cosmetics, and printing [ 1 , 2 ]. Without continuous treatment, plenty of dyes are poured into the wastewater, causing severe environmental damage, such as an increase in water turbidity, biological oxygen demand (BOD), chemical oxygen demand (COD), and sunlight block [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Potential Application of Innovative Aspergillus terreus/ Sodium Alginate Composite Beads as Eco-Friendly and Sustainable Adsorbents for Alizarin Red S Dye: Isotherms and Kinetics Models

et al. 2023

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Fungi were used as one of the most common bioremediation methods. From this perspective, our study highlights the optimization of Alizarin Red S (ARS) dye adsorption performance for the sodium alginate (SA) by using the fungus Aspergillus terreus (A. terreus) to form a composite bead and the possibility of its reusability. This was accomplished by mixing SA with different ratios of biomass powder of A. terreus, including 0%, 10%, 20%, 30%, and 40%, to form composite beads of A. terreus/SA-0%, A. terreus/SA-10%, A. terreus/SA-20%, A. terreus/SA-30%, and A. terreus/SA-40%, respectively. The ARS adsorption characteristics of these composite mixtures were analyzed at various mass ratios, temperatures, pH values, and initial concentrations. Moreover, sophisticated techniques, such as scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR), were employed to detect the morphological and chemical properties of this composite, respectively. The experimental results revealed that A. terreus/SA-20% composite beads have the highest adsorption capacity of 188 mg/g. Its optimum adsorption conditions were achieved at 45 ∘C and pH 3. Moreover, the ARS adsorption was well explained by the Langmuir isotherm (qm = 192.30 mg/g) and pseudo-second-order and intra-particle diffusion kinetics. The SEM and FTIR findings corroborated the superior uptake of A. terreus/SA-20% composite beads. Lastly, the A. terreus/SA-20% composite beads can be employed as an eco-friendly and sustainable alternative to other common adsorbents for ARS.

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Section: Introductionmentioning

confidence: 99%

Potential Application of Innovative Aspergillus terreus/ Sodium Alginate Composite Beads as Eco-Friendly and Sustainable Adsorbents for Alizarin Red S Dye: Isotherms and Kinetics Models

et al. 2023

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Sustainable Nano‐Nonwoven Fabric Production from Recycled Polyamide 6 Waste via Electrospinning: Controlling Characteristics and Comprehensive Analytical Study

Metwally

Zayed

Rashed

et al. 2023

Adv Materials Technologies

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This study investigates the recycling of polyamide 6 (PA 6) wastes to produce nonwoven fabrics based on nanofibers (PA‐NWNF) to promote sustainable textile solid waste management and generate a novel material with exceptional properties. PA‐NWNF characteristics can be controlled by adjusting the electrospinning parameters. A comprehensive characterization will be performed using various analytical techniques, such as scanning electron microscopy (SEM), Fourier‐transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), Brunauer–Emmett–Teller (BET), and dynamic mechanical analysis (DMA), to evaluate the unique properties as a function of the electrospinning parameters. According to the SEM results, concentrations of 21% are suitable to produce nanofiber with a well‐defined morphology, provided that the applied voltage is maintained at 20 kV and the collecting distance is above 10 cm, irrespective of the flow rate in the established protocol. XRD and FTIR analysis indicate a gradual decrease in the α‐phase and a simultaneous increase in the γ‐phase as the solution concentration increases. Moreover, low applied voltage favored β‐form crystallization over γ and α‐forms predominant at the higher voltage. DMA and BET data reveal that the elongated droplets formed at lower concentration exhibit a low storage modulus, high damping factor, highest surface area, and smallest pore diameters.

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From Textile and Mine Waste Into Sustainable, Low‐Cost and Valuable Nanotextile Fabric‐Based Composites Through Electrospinning Technique

Metwally,

Gumaah,

AL‐Mhyawi

et al. 2024

Polymers for Advanced Techs

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The rapid expansion of textile industries has contributed significantly to non‐biodegradable waste generation, presenting a global environmental challenge. Additionally, waste from the mining industry, such as chrysotile serpentine, contributes to this environmental issue. Therefore, this study investigates the possibility of recycling polyamide 6 waste combined with chrysotile serpentine waste to produce nanotextile fabric‐based composite (NTF‐BC). This study highlights the environmental significance of sustainable techniques in waste management specifically within the textile industry. The chrysotile serpentine waste was intensively pulverized into nanoscale particles to eliminate its hazardous fibrous nature and facilitate the electrospinning process. Comprehensive characterization was conducted using various analytical techniques including XRD, XRF, FT‐IR, SEM, BET, and DMA, to explore the properties of prepared fabrics as a function of electrospinning parameters (Ctl.Sp concentration, spinning distance, applied voltage, and flow rate.). SEM analysis indicated optimal fabrication conditions for smoother and more homogeneous NTF‐BC at Ctl.Sp concentration of 7.5%, voltage of 20 kV, spinning distance of 15 cm, and flow rate of 1 mL/h. XRD and FT‐IR analyses showed that increasing the Ctl.Sp ratio, distance, and voltage negatively affected sample crystallinity and favored the α‐form over the γ‐form. In terms of DMA characteristics, the Ctl.Sp ratio and applied voltage positively impacted the E′ values, with minimal influence from spinning distance and rate. Notably, the highest geometric properties (i.e., SBET and Vt) of the fabricated NTF‐BC were attained at the lowest Ctl.Sp ratio of 5%.

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Dyeing of Recycled Electrospun Polyamide 6 Nanofibers: Implications of Dye Particle Size

Cited by 10 publications

References 85 publications

Potential Application of Innovative Aspergillus terreus/ Sodium Alginate Composite Beads as Eco-Friendly and Sustainable Adsorbents for Alizarin Red S Dye: Isotherms and Kinetics Models

Potential Application of Innovative Aspergillus terreus/ Sodium Alginate Composite Beads as Eco-Friendly and Sustainable Adsorbents for Alizarin Red S Dye: Isotherms and Kinetics Models

Sustainable Nano‐Nonwoven Fabric Production from Recycled Polyamide 6 Waste via Electrospinning: Controlling Characteristics and Comprehensive Analytical Study

From Textile and Mine Waste Into Sustainable, Low‐Cost and Valuable Nanotextile Fabric‐Based Composites Through Electrospinning Technique

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