A new strategy for functionalization of char derived from pyrolysis of textile waste and its application as hybrid fillers (CNTs/char and graphene/char) in cement industry

Yousef, Samy; Kalpokaitė-Dičkuvienė, Regina; Baltušnikas, Arūnas; Пітак, Інна; Lukošiūtė, Irena

doi:10.1016/j.jclepro.2021.128058

Cited by 41 publications

(11 citation statements)

References 59 publications

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“…It can also be easily stretched and coated on the surface of various materials and in different forms, and recent studies have also confirmed its bactericidal and bacteriostatic properties [ 6 , 24 , 25 ]. These unique properties mean that graphene has great potential and it has already been successfully applied in many fields, such as the automotive industry, aerospace, electrical engineering, robotics, solar cells, energy storage, telecommunications, biochemistry and medicine [ 22 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. These advantages make it possible to use graphene for stabilization and structure reinforcement of polymers that have certain limitations; i.e., natural polymers such as starch, chitosan, cellulose, alginates, hyaluronic acid, which, despite their many advantages, show weak barrier properties or poor mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

The Functional and Application Possibilities of Starch/Chitosan Polymer Composites Modified by Graphene Oxide

Krystyjan

Khachatryan

et al. 2022

IJMS

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This study describes functional properties of bionanocomposites consisting of starch/chitosan/graphene oxide (GO) obtained using the green synthesis method, such as water-barrier and optical properties, as well as the rate of degradation by enzymatic and acid hydrolysis. The toxicity of the composites and their effects on the development of pathogenic microflora during storage of meat food products was also investigated. Although the results showed that the barrier properties of the composites were weak, they were similar to those of biological systems. The studies carried out confirmed the good optical properties of the composites containing chitosan, which makes it possible to use them as active elements of packaging. The susceptibility of starch and chitosan films to enzymatic and acid hydrolyses indicates their relatively high biodegradability. The lack of toxicity and the high barrier against many microorganisms offer great potential for applications in the food industry.

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Section: Introductionmentioning

confidence: 99%

The Functional and Application Possibilities of Starch/Chitosan Polymer Composites Modified by Graphene Oxide

Krystyjan

Khachatryan

et al. 2022

IJMS

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“…In this way, textile waste can be transformed after pyrolysis into three products: char, pyrolytic oil, and syngas. This method has been studied extensively in an attempt to find an efficient method of recycling textile waste [ 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 ]. The mechanisms and the kinetics of cotton pyrolysis are well known [ 106 , 107 ].…”

Section: Chemical Treatmentmentioning

confidence: 99%

Methods for Natural and Synthetic Polymers Recovery from Textile Waste

2022

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Trends in the textile industry show a continuous increase in the production and sale of textile materials, which in turn generates a huge amount of discarded clothing every year. This has a negative impact on the environment, on one side, by consuming resources—some of them non-renewables (to produce synthetic polymers)—and on the other side, by polluting the environment through the emission of GHGs (greenhouse gases), the generation of microplastics, and the release of toxic chemicals in the environment (dyes, chemical reagents, etc.). When natural polymers (e.g., cellulose, protein fibers) are used for the manufacturing of clothes, the negative impact is transferred to soil pollution (e.g., by using pesticides, fertilizers). In addition, for the manufacture of clothes from natural fibers, large amounts of water are consumed for irrigation. According to the European Environment Agency (EEA), the consumption of clothing is expected to increase by 63%, from 62 million tonnes in 2019 to 102 million tonnes in 2030. The current article aims to review the latest technologies that are suitable for better disposal of large quantities of textile waste.

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“…To synthesize CB of 10-20 nm, the process is conducted in a pyrolysis reactor followed by milling and chemical treatments to modify the cotton textile waste (CTW). Then, synthetic CB (0.05 wt%) and hybrid fillers (CNTs/CB and graphene/CB: 50/50) are applied to improve the cement paste characteristics [153]. On the other hand, Jagdale et al studied applications of recycled and reused carbon produced from cotton waste by the pyrolysis process in active electrode battery materials.…”

Section: Textile Recycling Using Pyrolysismentioning

confidence: 99%

Possibility Routes for Textile Recycling Technology

et al. 2021

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The fashion industry contributes to a significant environmental issue due to the increasing production and needs of the industry. The proactive efforts toward developing a more sustainable process via textile recycling has become the preferable solution. This urgent and important need to develop cheap and efficient recycling methods for textile waste has led to the research community’s development of various recycling methods. The textile waste recycling process can be categorized into chemical and mechanical recycling methods. This paper provides an overview of the state of the art regarding different types of textile recycling technologies along with their current challenges and limitations. The critical parameters determining recycling performance are summarized and discussed and focus on the current challenges in mechanical and chemical recycling (pyrolysis, enzymatic hydrolysis, hydrothermal, ammonolysis, and glycolysis). Textile waste has been demonstrated to be re-spun into yarn (re-woven or knitted) by spinning carded yarn and mixed shoddy through mechanical recycling. On the other hand, it is difficult to recycle some textiles by means of enzymatic hydrolysis; high product yield has been shown under mild temperatures. Furthermore, the emergence of existing technology such as the internet of things (IoT) being implemented to enable efficient textile waste sorting and identification is also discussed. Moreover, we provide an outlook as to upcoming technological developments that will contribute to facilitating the circular economy, allowing for a more sustainable textile recycling process.

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A new strategy for functionalization of char derived from pyrolysis of textile waste and its application as hybrid fillers (CNTs/char and graphene/char) in cement industry

Cited by 41 publications

References 59 publications

The Functional and Application Possibilities of Starch/Chitosan Polymer Composites Modified by Graphene Oxide

The Functional and Application Possibilities of Starch/Chitosan Polymer Composites Modified by Graphene Oxide

Methods for Natural and Synthetic Polymers Recovery from Textile Waste

Possibility Routes for Textile Recycling Technology

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