Differentiating between Natural and Modified Cellulosic Fibres Using ATR-FTIR Spectroscopy

Geminiani, Ludovico; Campione, Francesco; Corti, Cristina; Luraschi, Moira; Motella, Sila; Recchia, Sandro; Rampazzi, Laura

doi:10.3390/heritage5040213

Cited by 30 publications

(11 citation statements)

References 90 publications

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“…Moreover, the FTIR spectra of the analyzed isolated sample indicate the presence of a large amount of organic components in the analyzed sample. The presence of organic components, presumably derived from cotton, in the analyzed samples can be confirmed by the specific vibrations at the wavelengths 3250-4000 cm −1 , as suggested by Geminiani et al (2022) [35].…”

Section: Ftirsupporting

confidence: 71%

Efficiency of Coagulation/Flocculation for the Removal of Complex Mixture of Textile Fibers from Water

et al. 2023

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Synthetic fibers enter wastewater treatment plants together with natural fibers, which may affect treatment efficiency, a fact not considered in previous studies. Therefore, the aim of the present study was to evaluate the efficiency of the coagulation/flocculation process for the removal of a mixture of textile fibers from different water matrices. Natural and synthetic fibers (100 mg/L; cotton, polyacrylonitrile, and polyamide) were added to a synthetic matrix, surface water and laundry wastewater and subjected to coagulation/flocculation experiments with ferric chloride (FeCl3) and polyaluminum chloride (PACl) under laboratory conditions. In the synthetic matrix, both coagulants were found to be effective, with FeCl3 having a lesser advantage, removing textile fibers almost completely from the water (up to 99% at a concentration of 3.94 mM). In surface water, all dosages had approximately similar high values, with the coagulant resulting in complete removal. In laundry effluent, the presence of surfactants is thought to affect coagulation efficiency. PACl was found to be effective in removing textile fibers from laundry wastewater, with the lowest removal efficiency being 89% and all dosages having similar removal efficiencies. Natural organic matter and bicarbonates showed a positive effect on the efficiency of FeCl3 in removing textile fibers from surface water. PACl showed better performance in coagulating laundry wastewater while surfactants had a negative effect on FeCl3 coagulation efficiency.

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Section: Ftirsupporting

confidence: 71%

Efficiency of Coagulation/Flocculation for the Removal of Complex Mixture of Textile Fibers from Water

et al. 2023

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“…Moreover, peaks at 1470–1420 cm −1 indicate the bending vibrations of CH bonds in cellulose’s aliphatic side chains. These unique bands not only confirm the presence of cellulose, but also offer specific wavenumbers and intensity information that can indicate changes in viscose fiber degradation when exposed to environmental conditions [ 17 , 18 ]. A reduction in the band intensity at higher wavenumbers (3333 cm −1 and 2915 cm −1 ) in exposed viscose fibers suggests alterations or the loss of certain functional groups, leading to modifications in molecular vibrations during degradation.…”

Section: Resultsmentioning

confidence: 99%

Impact of Polylactic Acid Fibers in Cellulose Nonwoven Mulch Blends on Biodegradability and Performance—An Open Field Study

Kopitar,

Marasovic,

Vrsaljko

2024

Polymers

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The performance and degradation of nonwoven mulches made from viscose, jute, hemp fibers, and their blends with PLA fibers, subjected to field conditions, are investigated. This research explores the possible substitution of traditional agricultural polyethylene mulching agro foil with environmentally friendly biodegradable nonwoven mulches produced from blends of jute, hemp, and viscose fibers along with PLA fibers. The nonwoven mulches underwent a ten-month exposure to field conditions, showing varied degradation. The jute and hemp nonwoven mulches degraded completely within the test period, whereas their blends with PLA fibers exhibited slowed degradation. This study indicated that PLA fibers in blends with jute, hemp, and viscose mulches slowed degradation, impacting their structural integrity and tensile properties. The tensile properties of nonwoven mulches blended with 20% of PLA fibers increased the breaking forces after field exposure. Observations on structural changes through microscopy highlighted the structure maintenance in jute and hemp blends due to the non-degraded PLA fibers, contrasting the complete degradation of 100% jute and hemp mulches. A microscopic analysis revealed alterations in the fiber structure and density changes, particularly in viscose mulches and their blends with PLA fibers. Soil temperature variations were observed under different mulches; e.g., agro foil consistently exhibited higher temperatures compared to nonwoven mulches. Notably, the hemp and jute/PLA blend mulches showed slightly elevated temperatures, while the viscose-based mulches consistently revealed the lowest temperatures. Regarding soil moisture, the nonwoven mulches generally maintained higher moisture levels compared to the control field and agro foil from June to October. These findings suggest that nonwoven mulches effectively preserved soil moisture during critical growth periods, potentially positively impacting plant growth. The weed suppression capabilities varied among mulches, with hemp mulch initially displaying the lowest suppression ability in the first six months. The addition of 20% of PLA fibers in mulch blends with viscose, jute, and hemp notably improved the weed control capabilities. Understanding the impacts of field conditions on newly produced nonwoven mulches is crucial for optimizing mulch selection in agricultural practices to enhance soil conditions and weed management.

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“…Peak 1606 cm −1 corresponds to the C-C aromatic stretching. The signals present in the samples of polyethylene with additives come from their main components: lignins, hemicelluloses, pectins, and waxes [50].…”

Section: Resultsmentioning

confidence: 99%

Pomace from Oil Plants as a New Type of Raw Material for the Production of Environmentally Friendly Biocomposites

Betlej,

Borysiuk,

Borysiak

et al. 2023

Coatings

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The production of environmentally friendly biocomposites can be based on attractive and low-cost vegetable pomace, a waste product from oil production. In the present study, biocomposites made from HDPE and pomace from black cumin, corn, and flax seeds were subjected to evaluation of structural, morphological, and thermal parameters and susceptibility to germination by filamentous fungi. Based on the characteristics of the produced biocomposites, it should be concluded that vegetable waste from oil production, applied at a 1:1 ratio as a filler for polyethylene-based biocomposites, significantly reduces the crystallinity of the produced material and decreases its thermal stability. It should also be noted that such biocomposites are more easily overgrown by fungi, which may facilitate their biodegradation. Very poor antioxidant properties, resulting from the encapsulation of the plant fraction in polyethylene, limit the functionality of this type of material as, for example, active biomaterials to prevent free radical processes. Although the structural and physical characteristics of the produced biocomposites have been shown to be inferior to polyethylene, efforts should be made to improve these characteristics. Plant waste can be a valuable raw material for the production of materials compatible with various industries.

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Differentiating between Natural and Modified Cellulosic Fibres Using ATR-FTIR Spectroscopy

Cited by 30 publications

References 90 publications

Efficiency of Coagulation/Flocculation for the Removal of Complex Mixture of Textile Fibers from Water

Efficiency of Coagulation/Flocculation for the Removal of Complex Mixture of Textile Fibers from Water

Impact of Polylactic Acid Fibers in Cellulose Nonwoven Mulch Blends on Biodegradability and Performance—An Open Field Study

Pomace from Oil Plants as a New Type of Raw Material for the Production of Environmentally Friendly Biocomposites

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