Testing of electron beam irradiated sheep wool for adsorption of Cr(III) and Co(II) of higher concentrations

Braniša, Jana; Jomová, Klaudia; Lapčík, Ľubomír; Porubská, Mária

doi:10.1016/j.polymertesting.2021.107191

Cited by 11 publications

(5 citation statements)

References 12 publications

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“…The results from the sorption experiments of a simple Cr(III) solution were subjected to fitting with ten models of adsorption isotherms. The corresponding dependencies were shown by the models of Freundlich, Temkin, Halsey, Harkins-Jura and Jovanovic for all or almost all dosed samples [51].…”

Section: The Removal Of Chromium (Hexavalent/trivalent)mentioning

confidence: 78%

“…These occupy a larger portion of the surface, thereby preventing the entry of additional Cr(III) cations. Moreover, the possibility of coordinating one Cr(III) salt molecule with ligands from several keratin chains leads to crosslinking, which makes diffusion even more difficult [51]. The results from the sorption experiments of a simple Cr(III) solution were subjected to fitting with ten models of adsorption isotherms.…”

Section: The Removal Of Chromium (Hexavalent/trivalent)mentioning

confidence: 99%

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The Application of Sheep Wool in the Building Industry and in the Removal of Pollutants from the Environment

Porubská,

Koóšová,

Braniša

2024

Processes

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The presented review is focused on a brief overview of the scientific works on the use of sheep wool outside the textile industry that were published in recent years. The focus of the information is the on construction industry, which is a significant consumer of heat- and sound-insulating materials. With its properties, sheep wool can compete very well with insulators made from non-renewable resources. Other building elements can also be combined with wool, as long as they are used in appropriate conditions. Due to its chemical and physical structure, wool is extremely suitable for the adsorption removal of pollutants from the living and working environment, in native or modified form. Wool can also be used in recycling processes. However, each application must be preceded by an investigation of the optimal conditions of the given process, which offers researchers inspiration and interesting topics for research.

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Section: The Removal Of Chromium (Hexavalent/trivalent)mentioning

confidence: 78%

Section: The Removal Of Chromium (Hexavalent/trivalent)mentioning

confidence: 99%

The Application of Sheep Wool in the Building Industry and in the Removal of Pollutants from the Environment

Porubská,

Koóšová,

Braniša

2024

Processes

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“…To achieve this goal, wool fibers recommended as potential materials for wastewater treatment were often modified by the irradiation with accelerated electronbeam and graft copolymerization. The significant increase in metal uptake on electron irradiated wool compared to non-irradiated wool (Table 6) is strongly dependent on the adsorbed energy dose [216,[218][219][220][221][222][223][224]. Among the biosorbents based on wool fibers modified by graft-copolymerization [59], a special role is played by the amidoximated wool fibers, which have shown high efficiency and selectivity in the recovery of U(VI) from aqueous solutions [126,217,225,226].…”

Section: Wool Biosorbentsmentioning

confidence: 99%

Insights into the Applications of Natural Fibers to Metal Separation from Aqueous Solutions

Tofan

2023

Polymers

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There is a wide range of renewable materials with attractive prospects for the development of green technologies for the removal and recovery of metals from aqueous streams. A special category among them are natural fibers of biological origin, which combine remarkable biosorption properties with the adaptability of useful forms for cleanup and recycling purposes. To support the efficient exploitation of these advantages, this article reviews the current state of research on the potential and real applications of natural cellulosic and protein fibers as biosorbents for the sequestration of metals from aqueous solutions. The discussion on the scientific literature reports is made in sections that consider the classification and characterization of natural fibers and the analysis of performances of lignocellulosic biofibers and wool, silk, and human hair waste fibers to the metal uptake from diluted aqueous solutions. Finally, future research directions are recommended. Compared to other reviews, this work debates, systematizes, and correlates the available data on the metal biosorption on plant and protein biofibers, under non-competitive and competitive conditions, from synthetic, simulated, and real solutions, providing a deep insight into the biosorbents based on both types of eco-friendly fibers.

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“…Wool fibers, which do not irritate the eyes, skin, or lungs, pose no danger to human health. They are characterized by moisture absorption and desorption, breathability, high durability, good thermal, vibration damping and sound insulation properties, and resistance to fire, static electricity, and dirt [ 6 , 7 , 8 , 9 , 10 ]. Due to these properties, sheep wool is widely used in many areas.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Physical Properties of Polymer Composites Filled with Sheep Wool

Vasina,

Straznicky,

Hrbacek

et al. 2024

Polymers

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Sheep farmers are currently facing an oversupply of wool and a lack of willing buyers. Due to low prices, sheep wool is often either dumped, burned, or sent to landfills, which are unsustainable and environmentally unfriendly practices. One potential solution is the utilization of sheep wool fibers in polymer composites. This paper focuses on the study of mechanical vibration damping properties, sound absorption, light transmission, electrical conductivity of epoxy (EP), polyurethane (PU), and polyester (PES) resins, each filled with three different concentrations of sheep wool (i.e., 0%, 3%, and 5% by weight). It can be concluded that the sheep wool content in the polymer composites significantly influenced their physical properties. The impact of light transmission through the tested sheep wool fiber-filled polymer composites on the quality of daylight in a reference room was also mathematically simulated using Wdls 5.0 software.

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Testing of electron beam irradiated sheep wool for adsorption of Cr(III) and Co(II) of higher concentrations

Cited by 11 publications

References 12 publications

The Application of Sheep Wool in the Building Industry and in the Removal of Pollutants from the Environment

The Application of Sheep Wool in the Building Industry and in the Removal of Pollutants from the Environment

Insights into the Applications of Natural Fibers to Metal Separation from Aqueous Solutions

Investigation of Physical Properties of Polymer Composites Filled with Sheep Wool

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