Kinetic studies of radiation induced grafting of N-vinylformamide onto polyethylene/polypropylene fibrous sheets and testing its hydrolysed copolymer for CO2 adsorption

Zubair, Nur Afifah; Nasef, Mohamed Mahmoud; Mohamad, Noor Ashikin; Abouzari‐Lotf, Ebrahim; Ting, Teo Ming; Abdullah, Ezzat Chan

doi:10.1016/j.radphyschem.2020.108727

Cited by 18 publications

(12 citation statements)

References 29 publications

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“…This approach implies that irradiation of trunk polymers at elevated absorbed dose ought to result in higher DG materials. The proliferation of existing radicals in the polymer substrate as the dose increases and the fact that they often participate in reaction activation are the reasons for the DG% increase 34 . Figure 2 illustrates this association as well as the impact of absorbed dose on DG.…”

Section: Resultsmentioning

confidence: 99%

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Saber

Abdullah

Jamil

et al. 2021

Sci Rep

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The method of pre-irradiation grafting was used with the aid of electron beam (EB) accelerator to accomplish the grafting of polyamide 6 fibers (PA6) with glycidyl methacrylate (GMA). The extent to which GMA was grafted on PA6 was found to be markedly influenced by the absorbed dose of radiation and the reaction time of grafting. Trimethylamine (TMA) was afterwards employed for the functionalization of GMA-grafted fibers (PA6-g-GMA). A range of analyses (e.g., FTIR, FESEM, XRD, BET, and pHpzc) were carried out to determine the physiochemical and morphological properties of the fibrous adsorbent. p-Nitrophenol (PNP) adsorption from aqueous solution was conducted with the resulting TMA-(PA6-g-GMA) adsorbent. The adsorption behaviour of PNP on the fibrous adsorbent was clarified by investigating the adsorption kinetics and isotherm. According to the results, the adsorption of PNP on TMA-(PA6-g-GMA) reflected the pseudo-second order model. Meanwhile, the isotherm analysis revealed that the best description of the equilibrium data was provided by Redlich–Peterson model, followed closely by Langmuir isotherm model. The achieved adsorption capacity was highest at 176.036 mg/g. Moreover, the adsorption was indicated by the thermodynamic analysis to be spontaneous and exothermic. Regeneration and recycling of the adsorbent was possible for a minimum of five cycles with no reduction in adsorption capacity. It was concluded that the fibrous adsorbent could have applications for the removal of PNP at industrial pilot scale.

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Section: Resultsmentioning

confidence: 99%

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Saber

Abdullah

Jamil

et al. 2021

Sci Rep

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“…The PE/PP nonwoven sheet grafted with poly (glycidyl methacrylate) (PE/PP-g-GMA) with a degree of grafting of 160% was prepared as reported elsewhere [9]. EDA (purity ≥99) was purchased from Merck Millipore and used without further dilution.…”

Section: Chemicals and Reagentsmentioning

confidence: 99%

Effect of amine head group imparted to poly (glycidyl methacrylate) grafted fibrous adsorbent for CO₂ adsorption

Mohamad

Nasef

2022

J. Phys.: Conf. Ser.

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The demand to develop adsorbents for CO2 capture with high performance continued to grow extensively. Adsorbents with covalently bonded amine groups based on fibrous substrate modified by radiation-induced grafting copolymerization (RIGC) of glycidyl methacrylate (GMA) and amination treatment have emerged recently. In this study, GMA was grafted onto a polyethylene/polypropylene (PE/PP) fibrous sheet and the grafted intermediate was used to incorporate two different amine-containing agents, namely polyethyleneimine (PEI) and ethylenediamine (EDA) for CO2 adsorption. The chemical structural and morphological changes in the two aminated adsorbents were evaluated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. A low and equal amination level of 20% was achieved in PEI-containing and EDA-containing adsorbents. The CO2 adsorption from a binary mixture of CO2/N2 (40:60 v/v) was not satisfactory despite a 30% higher adsorption capacity (50.44 mg/g) demonstrated by EDA-containing adsorbent compared to 34.51 mg/g for PEI-containing counterpart at 30 bar and at room temperature. More work is needed to elevate the CO2 adsorption capacity levels in such adsorbents by increasing the amination level via optimization of reaction parameters.

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“…The samples were dried under vacuum and placed in zipped plastic bags, which were deaerated by purging with pure nitrogen gas and thermally sealed. The bags containing samples were placed in a tray on a dry ice loaded on a conveyer and irradiation by an electron beam [17] accelerator (NHVNissin High Voltage, EPS3000) operated at an acceleration energy and a beam current of 2 MeV and 10 mA, respectively. Dry ice was used to stabilize radicals formed in the PE/PP non-woven sheets and prevent any possible damage to the samples as a result of temperature increase during irradiation.…”

Section: Radiation Induced Graftingmentioning

confidence: 99%

“…Then, simple hydrolysis of the amide group was achieved after chemical treatment with sodium hydroxide (NaOH), resulted in amine containing adsorbent. In another study, Zubair et al has grafted the NVF monomer onto another lower cost substrates namely PE/PP fibrous sheet with the use of lower concentration of NVF monomer [17]. The adsorbent containing poly(vinylamine) obtained by the hydrolysis of the grafted poly(NVF) chains showed a remarkable CO2 adsorption capacity of 1.36 mmol/g at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of carbon dioxide adsorption performances by hydrazinolysis of poly(n-vinylformamide) grafted fibrous adsorbent

Zubair

Nasef

Abdullah

et al. 2022

J. Phys.: Conf. Ser.

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Emission of carbon dioxide (CO2) becomes a main concern in battling issues of global warming. The strategy to reduce the concentration of CO2 could be achieved by implementing carbon capture and storage (CCS) technology such as adsorption by solid adsorbents. In this work, hydrazone containing adsorbent was prepared by radiation induced grafting of N-vinylformamide (NVF) onto polyethylene coated polypropylene (PE/PP) fibrous sheets and subsequent hydrazinolysis for CO2 capture. Hydrazinolysis of the amide group to hydrazone moieties was accelerated by the addition of ammonium salts. These newly prepared adsorbent was characterized by scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). The adsorption tests of pure CO2 and N2, and their mixture were carried using the gravimetric method. The result revealed that the obtained adsorbent was highly CO2 selective and attained remarkably higher CO2 sorption capacity of 3.1 mmol/g at 30 bar and room temperature compared to 0.3 mmol/g for amide-containing sample. The new adsorbent could be used for few repeated cycles with negligible loss in sorption capacity. Overall, the hydrazone-containing adsorbent has storing potential for CO2 capture, and more studies need to be conducted for further development.

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Kinetic studies of radiation induced grafting of N-vinylformamide onto polyethylene/polypropylene fibrous sheets and testing its hydrolysed copolymer for CO2 adsorption

Cited by 18 publications

References 29 publications

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Effect of amine head group imparted to poly (glycidyl methacrylate) grafted fibrous adsorbent for CO₂ adsorption

Enhancement of carbon dioxide adsorption performances by hydrazinolysis of poly(n-vinylformamide) grafted fibrous adsorbent

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Kinetic studies of radiation induced grafting of N-vinylformamide onto polyethylene/polypropylene fibrous sheets and testing its hydrolysed copolymer for CO2 adsorption

Cited by 18 publications

References 29 publications

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Effect of amine head group imparted to poly (glycidyl methacrylate) grafted fibrous adsorbent for CO2 adsorption

Enhancement of carbon dioxide adsorption performances by hydrazinolysis of poly(n-vinylformamide) grafted fibrous adsorbent

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Effect of amine head group imparted to poly (glycidyl methacrylate) grafted fibrous adsorbent for CO₂ adsorption