Electrospun polyurethane nanofibers coated with polyaniline/polyvinyl alcohol as ultrafiltration membranes for the removal of ethinylestradiol hormone micropollutant from aqueous phase

Yasir, Muhammad; Ngwabebhoh, Fahanwi Asabuwa; Šopík, Tomáš; Ali, Hassan; Sedlařík, Vladimír

doi:10.1016/j.jece.2022.107811

Cited by 19 publications

(5 citation statements)

References 79 publications

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“…The difference between values was determined by a one‐way analysis of variance (ANOVA). A value of P < 0.05 was determined as statistically significant 50 …”

Section: Methodsmentioning

confidence: 99%

The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study

Yasir

Ngwabebhoh

Šopík

et al. 2022

J of Chemical Tech & Biotech

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Background: Estrogenic hormones as micropollutants in water systems cause severe adverse effects on human health and marine life, leading to fatal diseases, such as breast, ovarian, and prostate cancer. Electrospun polymers have proven high stability and impressive performance in adsorption removal. In this study, electrospun polysulfone (PSU), polyvinylidene fluoride, and polylactic acid were prepared and characterized using scanning electron microscope (SEM), fourier-transform intrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Brunauer Emmett Teller (BET), surface area measurement X-Ray diffraction (XRD), and porometry.Results: Nanofibers possess a mean fiber diameter of 149-183 nm and a specific surface area of 1.6-6.3 m 2 /g. The adsorption efficiency of the simultaneous removal of estrone (E1), 17⊎-estradiol (E2), estriol (E3), and 17⊍-ethinylestradiol (EE2) in a mixed concentration was investigated using high performace liquid chromatography (HPLC). The results indicate that spun PSU fibers exhibited the highest removal of all four estrogens, with a maximum removal efficiency of 71.2%, 65.9%, 56.9%, and 36.1% and adsorption capacity of 0.508, 0.703, 0.550, and 0.354 mg/g for E1, EE2, E2, and E3, respectively. Additionally, the adsorption was optimised by varying parameters, such as concentration of adsorbate, pH, adsorbent dosage, and temperature, to statistically analyse one-way variance using ANOVA. The pseudo-second-order is best fitted for E1, EE2, and E2, while the pseudofirst-order is best for E3. The Langmuir-Freundlich isothermal model was most suitable for evaluation, and the thermodynamics depicted the adsorption to be exothermic and spontaneous. Conclusion:The results indicate that spun PSU can be an efficient adsorbent in the simultaneous elimination of estrogens from wastewater and it exhibits a high regeneration performance of over 60% after six adsorption-desorption cycles.

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“…The difference between values was determined by a one‐way analysis of variance (ANOVA). A value of P < 0.05 was determined as statistically significant 50 …”

Section: Methodsmentioning

confidence: 99%

The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study

Yasir

Ngwabebhoh

Šopík

et al. 2022

J of Chemical Tech & Biotech

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“…For the separation of heavy metals, ultra ltration membranes are usually employed for treating heavy metals and synthetic organic pollutants. So far, various types of ultra ltration membranes have been developed with mostly polymeric materials such as polysulfone (PSF), polyether sulfone (PES), cellulose acetate (CA), polyacrylonitrile (PAN), polyurethane (PU), and polyvinylidene uoride (PVDF) [12][13][14][15]. These polymeric membranes can be fabricated using various techniques, with phase inversion and electrospinning the most common ones [16].…”

Section: Introductionmentioning

confidence: 99%

“…Response surface methodology (RSM) is an important tool in this regard by which the in uence of various selected parameters can be obtained while the required output can be maximized by obtaining optimized conditions [30,31]. RSM methods have been applied using various designs such as central composite design, Doehlert matrix, neural networks, and Box-Behnken design [13,[32][33][34]. However, it has been suggested that the BBD model is the most suitable for water treatment applications as it requires fewer experimental runs in comparison to other models, thus reducing time and costs [35].…”

Section: Introductionmentioning

confidence: 99%

Heavy metals rejection from water by CMC complexation- PVDF ultrafiltration system: Box-Behnken design optimization

Al-Mutair,

Kumar,

Al-Mur

et al. 2024

Preprint

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In this study, the rejection of three heavy metals (Pb, Zn, and Fe) was optimized using a polyvinylidene fluoride (PVDF) ultrafiltration membrane system combined with carboxymethyl cellulose (CMC) as a complexing agent. The fabricated PVDF membrane was characterized before and after filtration by FTIR, XRD, SEM, and EDX to ascertain the physicochemical properties. The PVDF ultrafiltration system integrated with CMC complexation was modeled and evaluated for the removal of Pb, Zn, and Fe metal ions using the response surface methodology (RSM)- Box-Behnken design (BBD). The RSM- BBD design was applied to determine the influence of three independent experimental parameters, i.e., pH, metal ions concentration, and CMC dosage. The proposed RSM model better described the experimental results with high R2 values (> 0.90) for all three metal ions. The optimized process parameters obtained by RSM showed that the maximum rejection % of Pb (101.28), Zn (89.74), and Fe (99.05) was achieved at solution pH of 7.64, 6.72, and 4.23, with initial metal concentrations 27.62, 20.46, and 133.15 mg/L, and CMC dosage 1.99, 0.14, and 0.46 g/L, respectively. The PVDF-membrane integrated CMC ultrafiltration system demonstrated good reusability with a reduction of only 5, 40, and 31 % for Pb, Zn, and Fe, respectively, after three consecutive cycles. The results indicated that integration of CMC complexation with PVDF ultrafiltration system is a promising approach for enhanced rejection of heavy metals from water.

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“…Membrane filtration processes, combined with adsorptive materials, have been reported in the literature for the efficient removal of MPs. Various adsorbents, such as activated carbon, − carbon nanotubes, , ion-exchange resins, polyaniline, and cyclodextrin, , have been immobilized into ultrafiltration (UF) membranes to enhance the removal of MPs.…”

Section: Introductionmentioning

confidence: 99%

Role of Cyclodextrin Cross-Linker Type on Steroid Hormone Micropollutant Removal from Water Using Composite Nanofiber Membrane

Lin,

Imbrogno,

Gopalakrishnan

et al. 2024

ACS Appl. Polym. Mater.

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Electrospun polyurethane nanofibers coated with polyaniline/polyvinyl alcohol as ultrafiltration membranes for the removal of ethinylestradiol hormone micropollutant from aqueous phase

Cited by 19 publications

References 79 publications

The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study

The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study

Heavy metals rejection from water by CMC complexation- PVDF ultrafiltration system: Box-Behnken design optimization

Role of Cyclodextrin Cross-Linker Type on Steroid Hormone Micropollutant Removal from Water Using Composite Nanofiber Membrane

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