Robust and durable polymer grafted cotton fabrics for sequential oil/water separation and heavy metal ions removal based on surface initiated ATRP

Wang, Xiao; Yu, Pengxiang; Zhang, Kangmin; Wu, Mingmei; Wu, Qingyun; Liu, Jiuyi; Zhang, Jianan

doi:10.1016/j.polymer.2020.123002

Cited by 25 publications

(7 citation statements)

References 54 publications

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“…46 The end point was obtained when the color changed from violet to yellow. The amount of adsorbed Cd (II) and Co(II) ions on modified cotton fabric at equilibrium, q e , (mg/g) was obtained according to the following equation 1,39,47 :…”

Section: Heavy Metal Ions Removalmentioning

confidence: 99%

“…32,33 According to the USEPA, the maximum contamination level for cobalt is 0.1 mg/g. 34 To remove the heavy metal ions, several methods have been used such as chemical precipitation, 35 ion exchange, 36 membrane technologies, 37 electroflotation, 38 electrodeposition, 39 and nanotechnology. 40 In comparison to the other approaches, adsorption is thought to be the most promising technology for wastewater treatment due to its ease of use, simplicity of design, and cost effectiveness.…”

Section: Introductionmentioning

confidence: 99%

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Performance evaluation of modified fabricated cotton membrane for oil/water separation and heavy metal ions removal

Abdel‐Hakim

Abdella

Sabaa

et al. 2021

Vinyl Additive Technology

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Preparation of effective membrane with special surface treatment for oil/water separation having promising future and low manufacturing cost. The suggested membrane was fabricated by a simple treatment via increasing the hydrophilicity of the cotton fabric surface. The cotton fabric was impregnated in poly(acrylic acid-co-N-methylol acrylamide), poly(AA-co-NMA), where NMA acts as bonding agent. Sodium hypophosphite (SHP) was added to the modification solution to enhance the bonding between the cotton fabric and the PAA.The modified fabric was thermally dried and cured at different temperatures. It was found that, the presence of 3.5% NMA and addition of 5% SHP to the modification solution then curing at 190 C gave the highest amount of bonded PAA to the cotton fabric. The success of the modification process was confirmed by scanning electron microscope, Fourier transformer infrared and the increase in the contact angle of the cotton fabric after modification. Furthermore, the prepared membrane was evaluated for oil (n-hexane, toluene, and petroleum ether)/water separation and also for heavy metal ions removal (Cd 2+ and Co 2+ ).Neutralization of the produced membrane with ammonium hydroxide resulting in a higher contact angle and consequently higher separation efficiency for oil/water mixtures and higher performance for heavy metal ions removal compared to the unneutralized one.

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Section: Heavy Metal Ions Removalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance evaluation of modified fabricated cotton membrane for oil/water separation and heavy metal ions removal

Abdel‐Hakim

Abdella

Sabaa

et al. 2021

Vinyl Additive Technology

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“…In recent years, various superhydrophobic surfaces have been prepared by surface-initiated grafting of hydrophobic monomers. − For instance, Wu et al have fabricated superhydrophobic cellulose filter papers by grafting poly(perfluorooctylethyl methacrylate) through atom transfer radical polymerization (ATRP), leading to a separation efficiency higher than 95% with excellent chemical resistance toward pH solution . Wang et al have reported superhydrophobic cotton for efficient oil/water separation by combining hydrophobic octadecanoyl chain bonding and grafting of styrene and acrylonitrile via ATRP .…”

Section: Introductionmentioning

confidence: 99%

Sustainable Superhydrophobic PVDF-Grafted Cellulose Membrane for Oil/Water Separation

Huh

et al. 2022

ACS Appl. Polym. Mater.

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Herein, we report a facile preparation of superhydrophobic poly(vinylidene fluoride)-grafted cellulose membranes (PVDF-g-CMs) for oil/water separation. To provide the durability of membranes, PVDF was covalently bonded to the CM via the surface-initiated reversible addition− fragmentation chain transfer/macromolecular design via the interchange of xanthates polymerization. The resulting PVDF-g-CMs were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and water contact angle measurements. The oil/water separation performance was examined using various oils, including n-hexane, chloroform, toluene, diethyl ether, dichloromethane, and silicone oil, and the membranes exhibited excellent performance with a separation efficiency higher than 97% for all oil/water mixtures. More importantly, due to the covalent bonding of PVDF on the surface, the PVDF-g-CMs showed superior stability under various environments, including water, oil, and acidic solutions, enabling them for practical application of oil/water separation.

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“…However, textiles treated with these ame retardants will release carcinogenic formaldehyde during nishing and use (Jia et al 2017). Therefore, it is necessary to study the formaldehydefree, halogen -free and durable ame retardant for cotton.In addition, in order to further enhance the re resistance and durability of cotton fabrics, someeffective strategies were implemented by coating , grafting (Wang et al 2020), layer-by-layer (LBL) self-assembly (Pan et al 2015),plasma treatment (Lam et al 2011) and sol gel technology (Periyasamy et al 2020) etc.which can e ciently enhance the cotton fabric re resistance.…”

Section: Introductionmentioning

confidence: 99%

One-step green synthesis of eco-friendly novel N–P synergistic flame retardant for cotton fabric

et al. 2021

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A novel N-P ammonium salt 1,3-propylene glycol diphosphate ester (APGDPE) ame retardant was tersely synthesized under solvent-free condition to lower cotton fabric re hazard. The APGDPE structure was characterized by 1H NMR,13C NMR,31P NMR and IR spectroscopy. The reactive P=O(NH4+)2 and PO(OH)2 groups of APGDPE were successfully grafted into cotton fabric to form P-O-C covalent bond. The limiting oxygen indexes (LOI) of 20%, 30% and 40% APGDPE treated cotton reach 40-44.5%. After 50 laundering cycles (LCs), the LOI value of 40% treated cotton still maintains 27.3%. These results veri ed that the treated cotton has obtained outstanding ame retardancy and prominent durability. TG test indicates that the thermal stability and thermal oxidative stability of treated cotton are much higher than those of control cotton. TG-IR test displayed that treated cotton released less ammable volatile gases than those of control cotton. Cone calorimetry revealed that the PHRR and THR values of treated cotton decreased by 5.57 % and 26.8%,respectively. XRD results suggest that the crystallization zone of cotton fabric before and after treatment hardly change. TG-IR and cone calorimetry tests veri ed the APGDPE condensation phase mechanism for treated cotton.

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Robust and durable polymer grafted cotton fabrics for sequential oil/water separation and heavy metal ions removal based on surface initiated ATRP

Cited by 25 publications

References 54 publications

Performance evaluation of modified fabricated cotton membrane for oil/water separation and heavy metal ions removal

Performance evaluation of modified fabricated cotton membrane for oil/water separation and heavy metal ions removal

Sustainable Superhydrophobic PVDF-Grafted Cellulose Membrane for Oil/Water Separation

One-step green synthesis of eco-friendly novel N–P synergistic flame retardant for cotton fabric

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