Mesoporous activated carbon fibers synthesized from denim fabric waste: Efficient adsorbents for removal of textile dye from aqueous solutions

Silva, Taís L.; Cazetta, André L.; Souza, Patrícia S.C.; Zhang, Tao; Asefa, Tewodros; Almeida, Vitor C.

doi:10.1016/j.jclepro.2017.10.034

Cited by 149 publications

(48 citation statements)

References 59 publications

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“…Jeans that are collected are mostly sold to textile sorting companies which manually/automatically sort the rewearable jeans for sale to second-hand shops and in Third World countries. Nonwearable jeans are, however, shredded and used for the development of various types of products such as thermal and acoustic insulators and/or textile-based composites for certain structural and other specialized applications [13,21,[23][24][25][26][27][28].…”

Section: Sources Of Denim Wastementioning

confidence: 99%

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Akı¹,

Candan²,

Nergis³

et al. 2020

Waste in Textile and Leather Sectors

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Global denim jeans market size is over 70 billion dollars today, and it continues to grow with a compound annual growth rate (CAGR) of 2%. As a reflection of this annual growth, systems' waste generation also increases. Textile waste including denim accounts for nearly 5% of all landfill space, according to the Environmental Protection Agency (EPA). Today, efficient recycling technologies are essential to revive the waste generated. Recycling technologies potentially represent a new way to engineer products. This book chapter analyzes these different recycling technologies and their advantages and challenges and concentrates on denim fabrics produced with recycled content. Life cycle assessment (LCA) methodology is adopted to quantify and compare the environmental impact of recycled denim fabrics. The chapter concludes the challenges and the future of recycling, creating systems, and engineering of waste. The view of seeing waste as a raw material potentially represents a new opportunity to design circular systems.

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Section: Sources Of Denim Wastementioning

confidence: 99%

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Akı¹,

Candan²,

Nergis³

et al. 2020

Waste in Textile and Leather Sectors

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“…Nowadays, environmental concern has gained great importance, arising the consciousness about recycling and resource utilization. For this reason, microextraction applications using waste products, such as cotton cloths waste, are increasingly appearing in scientific publications [65][66][67]. Cotton cloths waste has been used for the production of nanocellulose materials [68], including activated and porous carbon [69,70].…”

Section: Cottonmentioning

confidence: 99%

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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Green analytical chemistry principles aim to minimize the negative impact of analytical procedures in the environment, which can be considered both at close (to ensure the safety of the analysts) and global (to conserve our natural resources) levels. These principles suggest, among other guidelines, the reduction/minimization of the sample treatment and the use of renewable sources when possible. The first aspect is largely fulfilled by microextraction, which is considered to be among the greenest sample treatment techniques. The second consideration is attainable if natural products are used as raw materials for the preparation of new extraction phases. This strategy is in line with the change in our production system, which is being gradually moved from a linear model (take-make-dispose) to a circular one (including reusing and recycling as key terms). This article reviews the potential of natural products as sorbents in extraction and microextraction techniques from the synergic perspectives of two research groups working on the topic. The article covers the use of unmodified natural materials and the modified ones (although the latter has a less green character) to draw a general picture of the usefulness of the materials.Separations 2020, 7, 2 2 of 22 principle identifies one of the trends of current research in analytical sciences, it is difficult to be applied when complex samples containing the analytes at very low concentrations are processed. In such scenarios, the simplification of the sample treatment and the reduction of the sources applied (reagents, energy) can be a more practical objective, at least currently. Microextraction techniques fulfill the latter criteria [8], and they are considered among the greenest sample treatment techniques [9].Microextraction techniques have evolved in the last decade following some key trends. Among them, the development of new extraction phases can be highlighted, considering the context of this review article. In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model. This review article, which combines the vision of two research groups working in the topic, tries to draw the general picture of the potential of natural products for the synthesis of new sorptive phases in solid phase extraction and solid phase microextraction. The article will cover strategies with different green characterist...

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“…Hence, employing pyrolysis technique to treat the textile solid waste has also been paid more attentions by many researchers . Among them, direct conversion of textile solid waste into activated carbon materials has been regarded as a useful way for energy storage and environmental protection . In the pyrolysis process, two main methods, physical and chemical activation, are always used to produce activated carbon from different kinds of solid textile waste.…”

Section: Introductionmentioning

confidence: 99%

Molten Salt Pyrolysis of Melamine‐Modified Denim Fabric Waste into Nitrogen‐Doped Activated Carbon for Supercapacitor Applications

et al. 2019

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Conversion of biomass waste into nitrogen-doped porous carbon has been considered as a promising approach to achieve energy storage materials. Nitrogen-doped activated carbon materials have been successfully prepared by molten salt pyrolysis (MSP) using melamine modified-denim fabric waste as precursor. The molten salt medium provides liquid condition to carbonize and activate the denim fabric waste. Melamine produces a large amount of nitrogen element for doping the carbon materials. The obtained nitrogen-doped denim fabric-based carbon materials (NDFC-MSP) are composed of small fibrous fragment and thin sheet, and exhibit a high specific surface area (1975.2 m 2 ⋅g À 1 ) and high pore volume (1.087 cm 3 ⋅g À 1 ). Moreover, NDFC-MSP sample with a high nitrogen content of 6.93 wt.% possesses a maximum specific capacitance of 345.8 F⋅g À 1 at 0.25 A⋅g À 1 in 6 M KOH electrolyte. It also displays a high specific capacitance of 230 F⋅g À 1 at 10 A⋅g À 1 . The cycle stability shows 95.5% retention after 5000 charge-discharge cycles at 1 A⋅g À 1 . In addition, the fabricated symmetric NDFC-MSP supercapacitor with a wide voltage range of 1.8 V generates a maximum energy density of 17.0 Wh⋅kg À 1 at power density of 225 W kg À 1 in 1 M Na 2 SO 4 aqueous electrolyte.

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Mesoporous activated carbon fibers synthesized from denim fabric waste: Efficient adsorbents for removal of textile dye from aqueous solutions

Cited by 149 publications

References 59 publications

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Molten Salt Pyrolysis of Melamine‐Modified Denim Fabric Waste into Nitrogen‐Doped Activated Carbon for Supercapacitor Applications

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