Design dopamine-modified polypropylene fibers towards removal of heavy metal ions from water

Liu, K.; Zhou, Naizhen; Xie, Chaoxin; Mou, Bo; Ai, Yufei

doi:10.1063/1.4979925

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…It is evident that the PDA modification caused a significant change in the FTIR spectrum, giving rise to a new, broad absorption band of the dopamine-modified PP sample at 3180–3500 cm −1 assigned to O–H and N–H stretching vibration of the PDA. A broad peak in the region 1640–1500 cm −1 emerged, compared to the FTIR absorption spectrum of the neat PP, where several PDA-related vibrations were present, i.e., C=C resonance vibrations in an aromatic ring, N–H bending vibrations in the catechol and amine groups of PDA [ 15 , 17 , 23 ]. The presence of PEI as an intermediate coating was not obvious in the PP-PDA-PEI, as no band at ~1573 cm −1 , typical to bending of secondary amines (–N(R)H) in PEI, could be observed [ 6 , 24 ].…”

Section: Resultsmentioning

confidence: 99%

Dopamine-Assisted Modification of Polypropylene Film to Attain Hydrophilic Mineral-Rich Surfaces

et al. 2023

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The presented study focuses on the modification of polypropylene (PP) film with tetraethyl orthosilicate (TEOS) under heterogeneous conditions via polydopamine/polyethylene imine (PDA/PEI) chemistry using a facile dip-coating procedure to attain hydrophilic mineral-rich surfaces. Thus, the resulting PP-based films were further immersed in ion-rich simulated body fluid (SBF) to deposit Ca-based minerals onto the film’s surfaces efficiently. In addition, the chemical reaction mechanism on PP film was proposed, and mineralisation potential inspected by determination of functional groups of deposits, zeta potential, hydrophilicity and surface morphology/topography using Fourier transform infrared (FTIR) spectroscopy, streaming potential, water contact angle (WCA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The obtained results show the improved wettability of samples on account of PDA inclusion (WCA was reduced from 103° for pure PP film to 28° for PDA-modified film), as well as the presence of functional groups, due to the PDA/PEI/TEOS surface functionalisation, increased the ability of minerals to nucleate on the PP film’s surface when it was exposed to an SBF medium. Moreover, the higher surface roughness due to the silica coatings influenced the enhanced anchoring and attachment of calcium phosphate (CaP), revealing the potential of such a facile approach to modify the chemically inert PP films, being of particular interest in different fields, including regenerative medicine.

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Section: Resultsmentioning

confidence: 99%

Dopamine-Assisted Modification of Polypropylene Film to Attain Hydrophilic Mineral-Rich Surfaces

et al. 2023

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“…Thus, it is very necessary to pursue the hydrophilic modification of PP fiber. Universal hydrophilic modification of PP involves surface coating [2,3], wet chemical [4][5][6] and physical radiation containing plasma discharge [7][8][9][10]. It is reported that low temperature plasma treatment can positively produce large amounts of the polar group on the PP surface [11,12].…”

Section: Introductionmentioning

confidence: 99%

Modification of PP Fabric with Polyols by the Plasma Composite Technique

Ma¹,

Hu²,

Bai³

2022

Fibres &Amp; Textiles in Eastern Europe

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In order to endow polypropylene (PP) fabric with hydrophilic and antistatic properties, PP was grafted with polyols (sorbitol, maltitol and polyethylene glycol (PEG)) by the oxygen plasma treatment and subsequent bridging process, where ethylene glycol diglycidyl ether (EGDE) and trimethylolpropanetris (2-methyl-1-aziridinepropionate) (TTMA) were used as crosslinkers. The highest grafting rate was 7.48%. The chemical structure changes were analysed by Fourier transform infrared spectroscopy (FTIR). A scanning electron microscope (SEM) was used to observe the changes in polypropylene fiber surface morphology. The hydrophilicity was characterized by testing loose fiber suspension and moisture retention. The modified PP was more easily immersed in water and the desorption behaviour continued for 2h without equilibrium. The half-life of the grafted PP was reduced to 7s. The results showed that the modified PP with polyols possessed hydrophilicity and antistatic properties.

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“…The industrial tests of submersed fibers in water represented the hydrophilicity property enhancement of the treated fibers. Liu et al [11] prepared treated PP fibers with dopamine. The contact angle measurements showed that the treatment increased the fiber hydrophilicity, and the treated fibers have removed copper and lead ions from water efficiently.…”

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confidence: 99%

The functionalization of selected chemical agents on a polypropylene fiber and the study on the physical and anti‐bio‐fouling properties of the functionalized fibers

2022

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The functionalizing of a fiber surface by a chemical may alter the physical and biological properties of the fiber. The functionalization of a polypropylene fiber (PP) by selected monomers (1) acrylic acid (AA), (2) 2-hydroxyethyl methacrylate (HEMA), (3) 2-dimethyl amino ethyl methacrylate (DMAEMA), and (4) methyl acrylate (MA) studied using two different ultraviolet (UV) irradiation techniques, simultaneous UV irradiation and functionalization (SUVF) and pre-UV irradiation (PUV). Based on the measured grafting parameters, it found, the tendency of monomers for functionalizing on the PP surface was the highest for the AA and HEMA, and the lowest for the MA and DMAEMA for used SUVF and PUV techniques, respectively. The SEM micrographs showed the smooth surface of the PP fiber changed to a rough surface after functionalization. The functionalization also increased the crystallinity with little effect on melting point of the fiber. Except for the MA, functionalization increased the hydrophilic properties of the fiber. The PUV technique was more effective on the grafting degree % of the monomer than the SUVF technique for functionalized fibers with HEMA and MA. The biological experiments demonstrated the eligibility of AA as a favorable functionalizing agent for increasing the anti-bio-fouling properties of the studied PP fiber. K E Y W O R D Santi-bio-fouling, functionalization, functionalizing agent, polypropylene fiber | INTRODUCTIONMarine bio-fouling is any undesirable process results in precipitation and expansion of micro-and macroorganisms on the submerged surfaces in seawater. [1] The biofilm production with different bio-fouls is a global issue on marine constructions such as vessel hulls, heat exchangers, and aquaculture cages. Bio-fouling occurs on the coated surfaces even when treated with anti-fouling paints. However, the biofilm expansion may terminated with special modification of the solid surface. The surface modification may prevent the attachment of the bio-fouls on the surface. [2] The main issue related to bio-fouling in seawater is submerged fiber (polypropylene, PP) used in manufacture of fish cages. The seawater flow through the fish cage may be stopped by bio-foul growth on the fiber surface. This process reduces the solved oxygen in the seawater resulted in the death of the fishes inside the

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Design dopamine-modified polypropylene fibers towards removal of heavy metal ions from water

Cited by 6 publications

References 27 publications

Dopamine-Assisted Modification of Polypropylene Film to Attain Hydrophilic Mineral-Rich Surfaces

Dopamine-Assisted Modification of Polypropylene Film to Attain Hydrophilic Mineral-Rich Surfaces

Modification of PP Fabric with Polyols by the Plasma Composite Technique

The functionalization of selected chemical agents on a polypropylene fiber and the study on the physical and anti‐bio‐fouling properties of the functionalized fibers

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