Influence of phosphonic acid as a functional group on the adsorption behavior of radiation grafted polypropylene fabrics for Co(II) removal

Maleki, Fatemeh Shirmohammadzadeh; Gholami, Mobina; Torkaman, Rezvan; Torab‐Mostaedi, Meisam; Asadollahzadeh, Mehdi

doi:10.1016/j.radphyschem.2021.109886

Cited by 10 publications

(5 citation statements)

References 38 publications

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“…The low irradiation dose that induces the structural modification of PP is an argument for the preparation of nanohybrids containing acrylic acid [114], TAC or The application of polypropylene sensors for the detection of heat transfer is possible due to the improved thermal conductivity of polypropylene, assisted by copper nanowire as an added component with a good dispersion, such as hybrid materials [113]. CuNW becomes efficient for the samples with a copper concentration containing 3 vol% when the loading content increases by two times for "in-plane" measurements and by five times for "through-thickness" determinations, while the thermal conductivity is diminished at half of initial value.…”

Section: Polypropylenementioning

confidence: 99%

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Irradiation Effects in Polymer Composites for Their Conversion into Hybrids

Zaharescu

Mariș

2022

J. Compos. Sci.

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In this paper several aspects of profound modifications caused by high energy exposures are presented as possible candidates for the efficient adjusting processing of polymer materials. The class of hybrid composites receives special attention due to the large spectrum of formulations, where the interphase interaction decisively influences the material properties. They represent potential start points for the intimate uniformity of hybrid morphologies. Their radiation processing turns composites onto hybrid morphology with expected features, because the transferred energy is spent for the modification of components and for their compatibility. The essential changes achieved in radiation processed composites explain the new material behavior and durability based on the peculiar restructuring of polymer molecules that occurred in the polymer phase. During high energy irradiation, the interaction between intermediates born in the constitutive phases may convert the primary composites into hybrids, integrating them into large applicability spheres. During the radiation exposure, the resulting hybrids gain a continuous dispersion by means of new chemical bonds. This type of compounds achieves some specific structural modifications in the polymer phase, becoming stable hybrid composites. The functional properties of hybrids definitely influence the material behavior due to the molecular changes based on the structural reasons. The radiolysis of the vulnerable component becomes an appropriate opportunity for the creation of new material with improved stability. The radiation treatment is a proper conversion procedure by which common mixtures may become continuously reorganized. This review presents several examples for the radiation modifications induced by radiation exposure that allow the compatibilization and binding of components as well as the creation of new structures with improved properties. This approach provides the reference patterns for the extension of radiation processing over the well-conducted adjustments of polymer composites, when certain material features are compulsorily required. From this review, several solutions for the adjustment of regular polymer composites into hybrid systems may become conceivable by the extended radiation processing.

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Section: Polypropylenementioning

confidence: 99%

“…The low irradiation dose that induces the structural modification of PP is an argument for the preparation of nanohybrids containing acrylic acid [114], TAC or TMPTA [115] as binding agents. These monomers are positive solutions for efficient gelation of support and for the increase in the PP stability by radiation crosslinking.…”

Section: Polypropylenementioning

confidence: 99%

Irradiation Effects in Polymer Composites for Their Conversion into Hybrids

Zaharescu

Mariș

2022

J. Compos. Sci.

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“…One of the best chelating functional groups for the adsorption or removal of heavy metal ions from aqueous solutions has been determined to be amino groups, an anion metal ion may be adsorbed by an amino group by electrostatic contact 43 , 44 .…”

Section: Introductionmentioning

confidence: 99%

Targeted elimination of molybdenum ions from a leaching solution with the ability of radiated grafting GMA-PAN nanofibers

Fayazi,

Outokesh,

Asadollahzadeh

et al. 2024

Sci Rep

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In this study, electrospun polyacrylonitrile nanofibers were effectively functionalized for enhanced molybdenum ion adsorption through a multi-step approach. Initially, glycidyl methacrylate was grafted onto the nanofibers via irradiation-induced grafting polymerization, followed by chemical modification with various amino groups, with triethylamine identified as the optimal modifier. The impacts of key synthesis parameters and reaction conditions on grafting level and adsorption capacity were thoroughly investigated, with a focus on achieving maximum efficiency. The resulting nanofibers were characterized using FTIR, SEM, and BET techniques, confirming the successful modification and structural features conducive to adsorption. Furthermore, a comprehensive experimental design, incorporating a central composite design, yielded optimal conditions for molybdenum adsorption, with key parameters including monomer concentration, irradiation dose, adsorbent mass, initial concentration, time, pH, temperature, and amine concentration. The adsorption kinetics were effectively described by the pseudo-second-order model, while the Langmuir isotherm model provided valuable insight into the adsorption behavior. Impressively, the adsorbent exhibited exceptional adsorption efficiency, surpassing 98% even after six adsorption–desorption cycles using 0.5 M HCl. Thermodynamic analysis revealed the exothermic nature of the adsorption process, along with decreased entropy and overall spontaneity, underlining the favorable conditions for molybdenum adsorption. Notably, the synthesized adsorbent demonstrated notable selectivity for molybdenum and achieved an impressive adsorption capacity of 109.79 mg/g, highlighting its potential for practical applications in molybdenum removal from aqueous solutions.

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“…Radiation-induced graft (RIG) copolymerization is well-known for its advantages and potential for modifying pre-existing polymeric materials' chemical and physical characteristics without changing their intrinsic features 16 – 20 . The use of high-energy irradiation (gamma or electron beam) to modify polymers is well-known 21 , 22 . When polymeric materials are exposed to high-energy ionizing radiation, their chemical, physical (thermal, electrical, and optical), and mechanical characteristics are altered 23 , 24 .…”

Section: Introductionmentioning

confidence: 99%

Effective CO2 capture by using poly (acrylonitrile) nanofibers based on the radiation grafting procedure in fixed-bed adsorption column

Tourzani

Hormozi

Asadollahzadeh

et al. 2023

Sci Rep

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In this study, a new adsorbent was investigated for CO2 adsorption in the fixed-bed column. Poly (acrylonitrile) nanofibers were prepared by electrospinning, then grafting under gamma irradiation with glycidyl methacrylate (GMA). Then, the nanofibers were modified with ethanolamine (EA), diethylamine (DEA) and triethylamine (TEA) to adsorb carbon dioxide molecules. Dynamic adsorption experiments were performed with a mixture of CH4, CO2 in a constant bed column at ambient pressure and temperature and CO2 feed concentration (5%). The maximum adsorption capacity is 2.84 mmol/g for samples with 172.26% degree of grafting (DG) in 10 kGy. Also, the degree of amination with ethanolamine was achieved equal to 170.83%. In addition, the reduction of the regeneration temperature and the stability of this adsorbent after four cycles indicated the high performance of this adsorbent for CO2 adsorption.

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Influence of phosphonic acid as a functional group on the adsorption behavior of radiation grafted polypropylene fabrics for Co(II) removal

Cited by 10 publications

References 38 publications

Irradiation Effects in Polymer Composites for Their Conversion into Hybrids

Irradiation Effects in Polymer Composites for Their Conversion into Hybrids

Targeted elimination of molybdenum ions from a leaching solution with the ability of radiated grafting GMA-PAN nanofibers

Effective CO2 capture by using poly (acrylonitrile) nanofibers based on the radiation grafting procedure in fixed-bed adsorption column

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