Surface modified composite nanofibers for the removal of indigo carmine dye from polluted water

Yazdi, Milad Ghadami; Ivanić, Maja; Mohamed, Alaa; Uheida, Abdusalam

doi:10.1039/c8ra02463d

Cited by 68 publications

(27 citation statements)

References 59 publications

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“…The accumulation of these pollutants can have adverse effects on human health due to their toxicity, their ability to disrupt the endocrine system and their carcinogenic behavior [6]. Therefore, the improper handling and disposal of these toxic carcinogenic compounds pose a significant risk to the environment and the ecosystem [7,8]. In order to deal with such pollutants, conventional adsorption technologies, such as biological degradation, chemical oxidation, adsorption, and photocatalysis are used for removal procedures [9,10].…”

Section: Introductionmentioning

confidence: 99%

Rapid photocatalytic degradation of phenol from water using composite nanofibers under UV

et al. 2020

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Background The removal of phenol from aqueous solution via photocatalytic degradation has been recognized as an environmentally friendly technique for generating clean water. The composite nanofibers containing PAN polymer, CNT, and TiO2 NPs were successfully prepared via electrospinning method. The prepared photocatalyst is characterized by SEM, XRD, and Raman spectroscopy. Different parameters are studied such as catalyst amount, the effect of pH, phenol concentration, photodegradation mechanism, flow rate, and stability of the composite nanofiber to evaluate the highest efficiency of the photocatalyst. Results The composite nanofibers showed the highest photodegradation performance for the removal of phenol using UV light within 7 min. The pH has a major effect on the photodegradation of phenol with its maximum performance being at pH 5. Conclusions Given the stability and flexibility of the composite nanofibers, their use in a dynamic filtration is possible and can be even reused after several cycles.

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Section: Introductionmentioning

confidence: 99%

Rapid photocatalytic degradation of phenol from water using composite nanofibers under UV

et al. 2020

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“…For this purpose, chitosan-modified diatomite and porous diatomite–chitosan hybrids were produced and characterized by chemical-physical, thermal and morphological analysis. Indigo Carmine (IC), the most important organic dye, due to its extensive use in textile and other industries such as paper, plastic, leather, food, cosmetics and printing [ 28 ], was selected as a model dye to verify the suitability of the produced materials for environmental remediation application. Accordingly, its adsorbent capacity towards anionic dye (Indigo Carmine) was evaluated.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Green Diatomite/Chitosan-Based Hybrid Foams with Dye Sorption Capacity

et al. 2020

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The latest tendency of the scientific community regards the development of different classes of green materials able to solve pollution problems caused by industrial and human activity. In this paper, chitosan and diatomite were used to produce a broad-spectrum hybrid adsorbent, either in powder or in monolithic form for environmental pollutant removal. Diatomite–chitosan-based powders and porous diatomite–chitosan hybrids were prepared and characterized by chemical-physical, thermal and morphological analysis. Moreover, their adsorbent capacity towards anionic dye (Indigo Carmine) was also evaluated. Obtained data showed that chitosan improves the adsorption capacity of both systems, increasing the uptake of dye in both diatomite–chitosan systems.

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“…Titanium dioxide (TiO2) nanoparticle has been extensively investigated for numerous applications, for example, a white pigment [4], UV absorber in sunscreens [5], photocatalyst for hydrogen generation [6], environmental pollution removal [7,8] as well as photo-electrochemical sensors [9,10]. Moreover, it is considered as one of the well-known catalyst as a consequence of its availability, low-cost, non-toxicity and relatively high chemical stability [11,12]. It exists in three crystalline phases, namely, tetragonal anatase, tetragonal rutile and orthorhombic brookite [13].…”

Section: Introductionmentioning

confidence: 99%

“…Large scale processing and widespread use of synthetic dyes cause significant contamination to the atmosphere [12]. Dyes are used in both commercial and analytical fields and are biologically and chemically difficult to decompose [7].…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of PVDF-GO/Black-TiO2 Nanofibers and its Photocatalytic Degradation of Methylene Blue and Malachite Green Dyes

Abdelmaksoud

Mohamed

Sayed

et al. 2020

Preprint

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BackgroundBlack TiO2 and Graphene Oxide (GO) have attracted intensive attention as an effective catalyst on visible light driven for photodegrading of dyes. In this study, nano-black TiO2 was prepared by a simple hydrogenation of the anatase titanium oxide and the graphene oxide was prepared by applying the modified Hummers method. The prepared powders and nanofiber membranes are carefully examined to ensure their single phase and compound structure formation as well as to measure the equivalent crystallite size and particle distributions. ResultsThe optimum degradation efficiency of malachite green and methylene blue dyes occurred at pH values of 8 and 10, respectively. Afterwards, at the optimum pH value of 8, for malachite green, the degradation efficiency is peaked at 20 mg of the nano-black TiO2 concentration. Then, a comparison of the degradation efficiency of the two mentioned dyes are performed as the fore-mentioned nanofibers are loaded with 20 mg nano-black TiO2 at the corresponding optimum pH vales. ConclusionsThe diffuse reflectance spectroscopy has been investigated to find out the optical energy gaps of the treated and nano-black samples. Finally, a schematic of the redox reaction mechanism has been proposed.

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Surface modified composite nanofibers for the removal of indigo carmine dye from polluted water

Abstract: Surface coated magnetite nanoparticles (Fe3O4 NPs) with 3-mercaptopropionic acid were immobilized on amidoximated polyacrilonitrile (APAN) nanofibers using electrospinning followed by crosslinking.

Cited by 68 publications

References 59 publications

Rapid photocatalytic degradation of phenol from water using composite nanofibers under UV

Rapid photocatalytic degradation of phenol from water using composite nanofibers under UV

Fabrication of Green Diatomite/Chitosan-Based Hybrid Foams with Dye Sorption Capacity

Physical Properties of PVDF-GO/Black-TiO2 Nanofibers and its Photocatalytic Degradation of Methylene Blue and Malachite Green Dyes

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