The influence of gamma irradiation on natural dyeing properties of cotton and flax fabrics

Chirila, Laura; Popescu, Alina; Cutrubinis, Mihalis; Stănculescu, Ioana; Moise, V.

doi:10.1016/j.radphyschem.2017.12.017

Cited by 32 publications

(14 citation statements)

References 21 publications

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“…Physical chemical techniques for characterizing the surface of the loaded biomaterial are used to identify the mechanisms of adsorption. FTIR spectroscopy is widely used, most often for the characterization of biomaterials, offering information on the chemical constituents, sample crystallinity and even supramolecular structure [ 24 , 25 , 26 ]. Recent studies showed the dependence of FTIR peak positions on the maize stalk powder particle size [ 27 ], variation in OH group concentrations in the different parts of corn stalk and the adsorption properties and mechanisms [ 18 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Maize Stalk Material for On-Site Treatment of Highly Polluted Leachate and Mine Wastewater

et al. 2021

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New research applications involving the use of cellulosic material derived from maize stalk for on-site treatment of leachate were evaluated for specific removal of Cu(II) and Fe(III) from real, highly polluted tailing pond and mine wastewater samples. Two major issues generated by anthropic mining activities were also tackled: wastewater metal content decrease to improve water quality and subsequently metal specific recovery, increasing the economic efficiency of metal production by using a green technology for residual management. Rapid saturation of the maize stalk mass determined in batch studies and the mine pilot experiment led to diminished metal concentrations in the second pilot experiment, where Cu(II) and Pb(II) from synthetic solutions were monitored in order to test biomaterial performances. In addition, in the second pilot experiment, maize stalk removed Pb(II) in the first 36 h, below the determination limit of the analytical method. The biomaterial bed in the column was saturated after 252 h of inflow solution. FTIR-ATR, TG and SEM techniques probed the interaction between maize stalk polar groups C=O, –OH, C–O and tailing water metallic ions by large FTIR band displacements, intensity decrease and shape changes, modification of thermal stability and by changes in the appearance of adsorbent microstructure images owing mainly to ion exchange mechanism.

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Section: Introductionmentioning

confidence: 99%

Maize Stalk Material for On-Site Treatment of Highly Polluted Leachate and Mine Wastewater

et al. 2021

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“…Several methods have been studied to enhance the natural dyeing of wool or other natural fibers without the use of metallic mordants. These methods include the use of ultrasound energy [22][23][24], microwave heating [25][26][27], gamma ray [28], UV radiation [29], enzyme treatment [30], and plasma treatment [31][32][33][34][35]. Furthermore, nanoclay treatment [30,36], chitosan finishing [37,38], employment of a hybrid of chitosan and polypropylene imine dendrimer [39], and bio-mordanting [40][41][42][43] are other wet processes studied for the improvement of dyeability of wool fibers with various natural dyes.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Surface Treatment of Wool Fiber with Plasma and Chitosan for Improved Coloration with Cochineal and Safflower Natural Dyes

et al. 2020

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In this study, the effect of surface modification of wool fiber with oxygen plasma and chitosan (PC) on the color strength of the samples dyed with cochineal and safflower natural dyes has been studied. According to colorimetric measurements, plasma and chitosan treatments resulted in notable improvements in dyeability of wool fibers. The plasma and chitosan-treated wool sample could be dyed in less time and at lower temperature compared with untreated one. The dyebath pH had a prominent effect on color strength, which showed that the electrostatic force has an important role in dye adsorption. The optimum pH for maximum dye absorption was 3.6. The fastness properties, tensile strength, and elongation at break of dyed wool were improved after PC treatment. Scanning electron microscopy (SEM) images and ATR-FTIR analysis proved the coating of wool scales with a uniform thin layer of chitosan, which caused the improved dyeability of wool fibers with safflower and cochineal.

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“…Surface modification of textile fibers is a promising approach for modifying their wettability and dyeability without considerable effect on their bulk properties. Several surface modification techniques including gamma irradiation (Chirila et al , 2018; Zahid et al , 2017; Usman et al , 2016; Gulzar et al , 2015), laser irradiation (Montazer et al , 2014; Montazer et al , 2012), grafting (Amara et al , 2019), cationization (Ben Ticha et al , 2017; Alebeid et al , 2015), UV irradiation (Rehman et al , 2017; Bhatti et al , 2016) and plasma treatment (Haji and Payvandy, 2020; Haji, 2020a; Haji, 2020b; Barani and Maleki, 2011) have been studied, and their effects on the dyeability of different textiles have been investigated. Ultrasonic and microwave treatment is also considered for improvement of the coloration of textiles, especially when using natural dyes.…”

Section: Introductionmentioning

confidence: 99%

Plasma activation and chitosan attachment on cotton and wool for improvement of dyeability and fastness properties

Haji

2020

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Purpose The dyeing of cellulosic and proteinous fibers with natural and synthetic colorants usually needs large amounts of metal salts to promote the dyeing procedure. To get rid of the necessity to use metal salts, plasma treatment and subsequent attachment of chitosan biopolymer were considered as green processes for surface functionalization of wool and cotton. The purpose of this paper is to investigate the effect of oxygen plasma treatment and attachment of chitosan on the dyeability of wool and cotton fabrics using walnut and weld as model natural dyes, as well as C.I. reactive blue 50 and C.I. acid blue 92 as model synthetic dyes. Design/methodology/approach Wool and cotton fabrics were modified with oxygen plasma and coated with chitosan solution. The un-modified and modified samples were dyed with the above-mentioned dyes under constant conditions. The color strength, color coordinates and fastness properties of the dyed samples were determined and compared. Findings The results showed that oxygen plasma treatment could improve the dyeability and fastness properties of wool and cotton fibers when dyed with all of the above-mentioned dyes. Attachment of chitosan to the plasma-treated samples significantly improved the dyeability of wool and cotton fibers with walnut, acid and reactive dyes. The fastness properties of the dyed samples were enhanced by plasma treatment and chitosan coating. Originality/value This study uses plasma treatment as an environmentally friendly pre-treatment for attachment of chitosan on wool and cotton. This process improved the dyeing properties of both fibers. The use of metal salts in not needed for dyeing of wool and cotton according to the investigated process.

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The influence of gamma irradiation on natural dyeing properties of cotton and flax fabrics

Cited by 32 publications

References 21 publications

Maize Stalk Material for On-Site Treatment of Highly Polluted Leachate and Mine Wastewater

Maize Stalk Material for On-Site Treatment of Highly Polluted Leachate and Mine Wastewater

Environmentally Friendly Surface Treatment of Wool Fiber with Plasma and Chitosan for Improved Coloration with Cochineal and Safflower Natural Dyes

Plasma activation and chitosan attachment on cotton and wool for improvement of dyeability and fastness properties

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