Novel hyper branched polyaniline nanocomposites for gamma radiation dosimetry

Elhalawany, Noha; Wassel, Ahmed R.; Abdelhamid, Ahmed E.; Elfadl, A. Abou; Nouh, S. A.

doi:10.1007/s10854-020-02884-z

Cited by 17 publications

(3 citation statements)

References 23 publications

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“…To use these polymers in the adsorption treatment process, they should first be functionalized by chemical modification such as grafting and chemical oxidation or incorporation of functional materials such as functional nanoparticles, metal organic framework, inorganic, organic or microbial functional materials [6,[28][29][30][31]. Polymer composite composed of polymer matrix and nanoparticles or submicron particles displayed the advantage of both materials and can be used in different application fields [32][33][34][35]. Therefore, the aim of the present study is to use Ulva fasciata algal biomass with very small sizes resulting from grinding and milling processes and their incorporation into cellulose acetate (CA) polymer forming an ecofriendly and low-cost polymer-Ulva fasciata composite membrane (CA-U).…”

Section: Introductionmentioning

confidence: 99%

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Abdelhamid

Labena

Mansor

et al. 2021

Biomass Conv. Bioref.

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New composite adsorptive membranes were prepared from non-living Ulva fasciata (U), marine algae and cellulose acetate (CA) as polymer matrix to develop CA-U composite membranes with different ratios using the phase inversion technique. These CA-U membranes were used for cadmium (Cd 2+ ) and zinc (Zn 2+ ) ion removal from aqueous media. The prepared membranes were characterized via different instrumental techniques as ATR-FTIR, SEM and EDX in addition to swelling and porosity measurements. Afterwards, they were optimized for Cd 2+ and Zn 2+ removal through one factor at a time (OFAT) trials followed by full factorial design. The morphology and porosity measurements were highly affected by the addition of Ulva fasciata biosorbent and showed a large increase of the size and density of pores of the CA-U membrane. Maximum adsorption capacities (q max ) of 95.2 and 91.7 mg/g were obtained for Cd 2+ and Zn 2+ ions, respectively. Results established that all isotherm models attained R 2 more than 0.9, where the Langmuir isotherm achieved the highest one with R 2 0.9993 for Cd 2+ and 0.9965 for Zn 2+ , and the adsorption process belongs to the pseudo-1st-order kinetic model. The CA-U membrane displayed a higher affinity for Cd 2+ and Zn 2+ ion removal by three to four times than the blank CA membrane. Furthermore, 3R processes (removal, recovery and re-use) were applied and indicated the suitability of this system in heavy metal removal with high efficiency.

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Section: Introductionmentioning

confidence: 99%

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Abdelhamid

Labena

Mansor

et al. 2021

Biomass Conv. Bioref.

Self Cite

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“…In many cases, the color changes induced by radiation can be correlated with the absorbed. [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Effect of ionizing radiation on the colorimetric properties of PVA-GTA Xylenol Orange Fricke gel dosimeters

et al. 2021

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…The incorporation of nanotechnology helps increase not only the surface area for active components [4] but also the mechanical properties of packaging film [3]. With the development of nanomaterials, metal oxide nanoparticles show promising and far-ranging prospects for the biomedical field, especially for anti-bacteria, anticancer drug/gene delivery, cell imaging, bio-sensing, and so on [5][6][7][8][9][10][11]. Nano-silver is one of the predominant nano-metals that is well known for its efficiency as an antimicrobial agent and can be used in many applications including packaging.…”

Section: ■ Introductionmentioning

confidence: 99%

Polyvinyl Alcohol Food Packaging System Comprising Green Synthesized Silver Nanoparticles

et al. 2020

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Green synthesis of silver nanoparticles (AgNPs) using aqueous Moringa extract and their incorporation in polyvinyl alcohol (PVA) as food packaging materials have been performed. The prepared nanoparticles were characterized via Ultraviolet-visible spectra and transmission electron microscope, and the results revealed the formation of silver nanoparticles in a semi-spherical shape with an average size ranged from 2 to 5 nm. The addition of different ratios of the nanoparticles onto the PVA matrix and their crosslinking via citric acid to obtain nanocomposite sheets were performed. The nanocomposite sheets were characterized using FT-IR, UV-Vis, and TGA. In addition, their mechanical properties were evaluated. Water vapor permeability rate and water content were also determined. The composite sheets showed good thermal and optical performance. Antibacterial activities of the prepared nanocomposite sheets were evaluated, and the results exhibited good resistance to bacterial growth.

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Novel hyper branched polyaniline nanocomposites for gamma radiation dosimetry

Cited by 17 publications

References 23 publications

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Effect of ionizing radiation on the colorimetric properties of PVA-GTA Xylenol Orange Fricke gel dosimeters

Polyvinyl Alcohol Food Packaging System Comprising Green Synthesized Silver Nanoparticles

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