Nano silver-embedded electrospun nanofiber of poly(4-chloro-3-methylphenyl methacrylate): use as water sanitizer

Shekh, Mehdihasan I.; Patel, Nirmal N.; Patel, Kaushal P.; Patel, Rajnikant M.; Ray, Arabinda

doi:10.1007/s11356-016-8254-0

Cited by 24 publications

(14 citation statements)

References 76 publications

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“…Activation energies of thermal decomposition steps have been established with Broido [50] and Coats [51] methods as it has been shown in various researches [52][53][54]. Obtained values are in well correspondence and are confirmed in the literature [55].…”

Section: Tga Analysissupporting

confidence: 63%

Universal approach of cellulose fibres chemical modification result analysis via commonly used techniques

2018

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This article considers the modification of cellulose fibres with the use of vinyltrimethoxysilane and maleic anhydride as substances to improve the wettability of the additive in the hydrophobic polymer matrix. The stress is put on the possible ways of modification impact investigation and its description. Effects of the treatment are analysed using Fourier transform infrared spectroscopy, which reveal the presence of new moieties on the cellulose surface, e.g. C=C bonds, C=O and Si-C groups, while dynamic light scattering investigation revealed an increase in the hydrodynamic radii of the molecules which was maximized in the case of modification with the use of maleic anhydride. Furthermore, thermal properties were defined with differential scanning calorimetry and thermogravimetric analysis. Some variations within the process of samples thermal degradation are observed-thermal stability of the specimen modified with maleic anhydride is the highest. The presented approach of combined fibre modification analysis techniques, being a scientific novelty, allows to confirm the treatment impact on cellulose properties at many levels. Graphical abstractKeywords Cellulose · Maleic anhydride · Vinyltrimethoxysilane

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Section: Tga Analysissupporting

confidence: 63%

Universal approach of cellulose fibres chemical modification result analysis via commonly used techniques

2018

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“…The thermal decomposition of PA and CTAB-PA followed two steps. It appears from the activation energy (Table 2) that CTAB-PA is more thermally stable than the PA [40].…”

Section: Thermal Stability and Burning Behaviormentioning

confidence: 99%

Cetyltrimethylammonium bromide-treated Phragmites australis powder as novel polymeric adsorbent for hazardous Eriochrome Black T removal from aqueous solutions

et al. 2018

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The potential of cetyltrimethylammonium bromide-treated Phragmites australis powder (CTAB-PA) as a novel polymeric sorbent for Eriochrome Black T (EBT) removal was studied. CTAB impregnation process increased adsorption sites availability that led to a better interaction of EBT dye and CTAB-PA. CTAB impregnation process increased the PA monolayer adsorption capacity from 57.14 to 89.93 mg g −1 . Adsorption data were modeled using chemical reaction-based kinetic models (pseudo-first-order, pseudo-second-order, and Elovich models) and diffusion-based kinetic models (Weber-Morris and Boyd models). EBT sorption kinetics could be described by the pseudo-second-order model having film diffusion as the main rate-limiting step. Adsorption data for both adsorbents were fitted to Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models, and best fitting was obtained with Langmuir model. Thermodynamic functions indicated that EBT adsorption onto PA and CTAB-PA was an exothermic and physical process. CTAB-PA burning behavior showed that this novel adsorbent can be considered as flame-retarding material. Adsorption-desorption experiments revealed that CTAB-PA could be reused up to five cycles with recovery percentage values maintained higher than 71%. CTAB-PA, a low-cost, durable, flame-retarding, and reusable material, was found to be an attractive candidate for EBT removal from water.

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“…The phenomenal properties of the low‐cost NaAlg are biocompatibility, nontoxicity, and its biological origin . To generate antimicrobial properties in blended polymer solutions, the incorporation of metallic nanoparticles is required, such as silver nanoparticles (Ag‐NPs) and ZnO‐NPs . The ZnO‐NPs metallic nanoparticles enhance water permeability, antibacterial activity, and metal uptake capacity .…”

Section: Introductionmentioning

confidence: 99%

PVA/TEOS crosslinked membranes incorporating zinc oxide nanoparticles and sodium alginate to improve reverse osmosis performance for desalination

Raza

Islam

Sabir

et al. 2019

J of Applied Polymer Sci

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Pure water is becoming less available with increases in world population, so seawater desalination is becoming more important. For efficient seawater desalination, this paper proposes a novel mixed matrix membrane (MMM) based on the deposition of a poly(vinyl alcohol) (PVA) nanofibrous active layer on a 3‐triethoxysilylpropylamine‐functionalized cellulose acetate substrate. The active layer is fabricated by utilizing a tetraethyl orthosilicate–crosslinked PVA incorporating zinc oxide nanoparticles (ZnO‐NPs) and sodium alginate (NaAlg). The overall reverse osmosis performance of the MMMs is enhanced by the infusion of ZnO‐NPs and NaAlg in PVA; we find the optimum concentration for the best performance to be ZnO‐NPs at 0.1 wt % and NaAlg at 0.01 wt %. In terms of permeation flux, salt rejection, salt passage, stability, long‐term rejection, membrane antifouling, reusability, and chlorine resistance, the proposed MMMs are examined using a dead‐end reverse osmosis filtration setup. The results show that the active layer achieves an optimal permeation flux of 34.6 L/m2 h, a natural sea salt rejection of 97%, and a chlorine resistance of 93%, suggesting that the proposed MMMs can be useful for seawater desalination. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47559.

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Nano silver-embedded electrospun nanofiber of poly(4-chloro-3-methylphenyl methacrylate): use as water sanitizer

Cited by 24 publications

References 76 publications

Universal approach of cellulose fibres chemical modification result analysis via commonly used techniques

Universal approach of cellulose fibres chemical modification result analysis via commonly used techniques

Cetyltrimethylammonium bromide-treated Phragmites australis powder as novel polymeric adsorbent for hazardous Eriochrome Black T removal from aqueous solutions

PVA/TEOS crosslinked membranes incorporating zinc oxide nanoparticles and sodium alginate to improve reverse osmosis performance for desalination

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