Progress in recycling and valorization of waste silk

Lu, Linlin; Fan, Wei; Ge, Shengbo; Liew, Rock Keey; Shi, Yang; Dou, Haiyang; Wang, Shujuan; Lam, Su Shiung

doi:10.1016/j.scitotenv.2022.154812

Cited by 37 publications

(19 citation statements)

References 105 publications

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“…Although the above achievements have promoted the application and development of waste acrylic fibers in the field of energy storage, there are few reports on the direct application of waste textiles to solid electrolytes. Nevertheless, these previous reports prove that it is feasible to apply textile waste to the field of energy storage electronic devices − and show that the high-value utilization of waste textiles is possible.…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Fiber-Network-Reinforced Composite Solid-State Electrolyte from Waste Acrylic Fibers for Flexible All-Solid-State Lithium Metal Batteries

Chen

Pan

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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The large amount of waste chemical fiber textiles that exists has posed pressure on the sustainable development of the natural environment and of society. Therefore, it is of great importance to increase the added value of waste chemical fiber textiles and expand their applications in other fields. Herein, acrylic yarn from waste clothing is used as the raw material to construct a three-dimensional (3D) acrylic-based ceramic composite nanofiber solid electrolyte. The electrochemical properties of batteries based on this solid electrolyte are also investigated. We found that the fabricated composite electrolyte has good performance in lithium ion conduction and electrochemical stability because of its 3D acrylic-based ceramic composite fiber framework. The introduction of this composite electrolyte to a lithium symmetric battery enabled the battery to circulate stably for 2350 h at 50 °C without short-circuiting. In addition, all-solid-state batteries using a LiFePO4 cathode exhibited high reversible capacity. Lastly, a flexible lithium metal pouch battery was able to operate safely and stably under extreme conditions. This work demonstrates a strategy for upcycling waste textiles into ion-conducting polymers for energy storage applications.

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Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Fiber-Network-Reinforced Composite Solid-State Electrolyte from Waste Acrylic Fibers for Flexible All-Solid-State Lithium Metal Batteries

Chen

Pan

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…34 Notably, after several years of use, numerous waste silk resources are abandoned due to aging, yellowing phenomena, and mechanical property degradation of silk products. 35 To further reduce the cost, waste silk resources in daily life can be a promising choice for processing and preparation. 36 In addition to the high-value recycling of waste silk resources, 37 ideal sustainable antibacterial silk sutures can be obtained simultaneously, which have notable practical significance and far-reaching social significance.…”

Section: Introductionmentioning

confidence: 99%

“…However, the price of raw silk fibers is 30–50 times that of synthetic fiber because silk fiber has luster, soft feel, and moisture absorption features . Notably, after several years of use, numerous waste silk resources are abandoned due to aging, yellowing phenomena, and mechanical property degradation of silk products . To further reduce the cost, waste silk resources in daily life can be a promising choice for processing and preparation .…”

Section: Introductionmentioning

confidence: 99%

Sustainable Antibacterial Surgical Suture Based on Recycled Silk Resource by an Internal Combination of Inorganic Nanomaterials

Zhang

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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The current antibacterial treatment methods of silk sutures can only be finished by surface modification, leading to problems of short antibacterial effects, easy slow-release consumption, prominent toxicity, and susceptibility to drug resistance. Speculatively, surgical sutures combining antibacterial material internally will possess a more promising efficacy. Hence, we extracted recycled regenerated silk fibroin (RRSF) from waste silk resources to make RRSF solutions. Internally combining with inorganic titanium dioxide (TiO2) nanoparticles, we fabricated antibacterial RRSF-based surgical sutures. The morphologies, mechanical and antibacterial properties, biocompatibility tests, and in vivo experiments were carried out. The results showed that the surgical sutures with 1.25 wt % TiO2 acquired 2.40 N knot strength (143 μm diameter) and achieved a sustainable antibacterial effect of 93.58%. Surprisingly, the sutures significantly reduced inflammatory reactions and promoted wound healing. Surgical sutures in this paper realize high-value recovery of waste silk fibers and provide a novel approach to preparing multifunctional sutures.

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“…[ 4 ] Sericin, when mixed with water, causes water pollution by increasing the biological oxygen demand (BOD) and chemical oxygen demand (COD), which ultimately threatens aquatic life through eutrophication. [ 5–7 ] Therefore, retrieval and reuse of the wasted sericin could be beneficial due to its biological properties like immune‐compatibility, biodegradability, biocompatibility, anti‐inflammatory, photoprotective, and photo‐reductivity. [ 8–11 ]…”

Section: Introductionmentioning

confidence: 99%

Silk Sericin Protein: Turning Discarded Biopolymer into Ecofriendly and Valuable Reducing, Capping, and Stabilizing Agent for Nanoparticles Synthesis Using Sonication

Summer

Ali

Tahir

et al. 2023

Macro Chemistry & Physics

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This current study is designed to incorporate sericin protein as a reducing, capping, and stabilizing agent to synthesize sonication‐mediated silver nanoparticles. Fabrication of sericin‐reduced silver nanoparticles (Sr‐AgNPs) is confirmed using UV–visible spectrophotometry, zeta sizer, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X‐Ray diffraction (XRD), and thermogravimetric analysis (TGA). UV–Vis spectral peak of Sr‐AgNPs is observed at 420–440nm while the average size is found between 3 to 30 nm. SEM also confirms the reduction of large‐sized (1–40 µm) sericin macromolecules into nanometric hexagonal and triangular silver nanoparticles with a normal distribution (polydispersity index > 0.5). FTIR peaks from 500 to 4000cm−1 are analyzed for sericin while Sr‐AgNPs peaks with minor shifts (700–1000 cm−1 (COOCO stretching) in Sr‐AgNPs) are also observed. XRD peaks of 2θ at 27° with multiple low peaks at 38.2°, 47°, 49°, and 63.8° authenticate the amorphous nature of sericin and sharp peaks at 36°, 48°, 54.3°, and 61.9° with miller indices (hkl) of 98, 111, 200, and 211, assess the crystalline structure of Sr‐AgNPs. TGA reveals that sericin enhances the stability of silver NPs at high temperature (200–600 °C) by lowering the percentage weight loss from 70–80% to 60–65%.

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Progress in recycling and valorization of waste silk

Cited by 37 publications

References 105 publications

A Three-Dimensional Fiber-Network-Reinforced Composite Solid-State Electrolyte from Waste Acrylic Fibers for Flexible All-Solid-State Lithium Metal Batteries

A Three-Dimensional Fiber-Network-Reinforced Composite Solid-State Electrolyte from Waste Acrylic Fibers for Flexible All-Solid-State Lithium Metal Batteries

Sustainable Antibacterial Surgical Suture Based on Recycled Silk Resource by an Internal Combination of Inorganic Nanomaterials

Silk Sericin Protein: Turning Discarded Biopolymer into Ecofriendly and Valuable Reducing, Capping, and Stabilizing Agent for Nanoparticles Synthesis Using Sonication

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