Catalytic fabrication of graphene, carbon spheres, and carbon nanotubes from plastic waste

RSC Advances, Год журнала: 2024, Номер 14(3), С. 1977 - 1983

Опубликована: Янв. 1, 2024

In this investigation, we reported sustainable and economical upcycling methods for utilizing plastics as cheap precursors the production of high-value carbon materials such graphene (G), spheres (CS), nanotubes (CNTs).

Язык: Английский

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Turning waste into valuables: In situ deposition of polypyrrole on the obsolete mask for Cr(VI) removal and desalination

Separation and Purification Technology, Год журнала: 2022, Номер 306, С. 122643 - 122643

Опубликована: Ноя. 14, 2022

Язык: Английский

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Advanced and Smart Textiles during and after the COVID-19 Pandemic: Issues, Challenges, and Innovations

Healthcare, Год журнала: 2023, Номер 11(8), С. 1115 - 1115

Опубликована: Апрель 13, 2023

The COVID-19 pandemic has hugely affected the textile and apparel industry. Besides negative impact due to supply chain disruptions, drop in demand, liquidity problems, overstocking, this was found be a window of opportunity since it accelerated ongoing digitalization trends use functional materials This review paper covers development smart advanced textiles that emerged as response outbreak SARS-CoV-2. We extensively cover advancements developing enable monitoring sensing through electrospun nanofibers nanogenerators. Additionally, we focus on improving medical mainly enhanced antiviral capabilities, which play crucial role prevention, protection, control. summarize challenges arise from personal protective equipment (PPE) disposal finally give an overview new textile-based products markets related control spread reduction

Язык: Английский

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Thermochemical Valorization of Waste Plastic for Production of Synthetic Fuels, Fine Chemicals, and Carbon Nanotubes

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(5), С. 1769 - 1796

Опубликована: Янв. 23, 2024

Globally, approximately 300 million metric tonnes of plastic waste are generated annually, and over 90% them either disposed to the landfill or incinerated. Though there commitments reduce plastics, it has its limitations. In this review, various types thermochemical processes (pyrolysis, gasification, hydrothermal liquefaction) used for upcycling first introduced. The production synthetic fuel, fine chemicals, carbon nanotubes through these then discussed, with effects each factor scrutinized. Technical challenges using how can be overcome highlighted. Economical environmental assessment also analyzed determine whether such viable plastic, closing economy loop.

Язык: Английский

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Adsorption Studies on the Removal of Anionic and Cationic Dyes from Aqueous Solutions Using Discarded Masks and Lignin

Molecules, Год журнала: 2023, Номер 28(8), С. 3349 - 3349

Опубликована: Апрель 10, 2023

The carbon materials derived from discarded masks and lignin are used as adsorbent to remove two types of reactive dyes present in textile wastewater: anionic cationic. This paper introduces the results batch experiments where Congo red (CR) Malachite green (MG) removed wastewater onto material. relationship between adsorption time, initial concentration, temperature pH value was investigated by experiments. It is discovered that 5.0–7.0 leads maximum effectiveness CR MG removal. equilibrium capacities found be 232.02 352.11 mg/g, respectively. processes consistent with Freundlich Langmuir models, thermodynamic processing data reveals exothermic properties both dyes. show dye uptake follow secondary kinetics. primary mechanisms on sulfonated alkaline (DMAL) include pore filling, electrostatic attraction, π-π interactions synergistic sulphate synthesized DMAL high efficiency promising an effective recyclable for adsorbing dyes, especially wastewater.

Язык: Английский

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Hydrogel and carbon nanostructures based supercapacitor: Initial steps toward green supercapatteries

Journal of Energy Storage, Год журнала: 2023, Номер 72, С. 108539 - 108539

Опубликована: Авг. 10, 2023

Язык: Английский

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Recent Progress in Polymer Waste‐Derived Porous Carbon for Supercapacitors

ChemElectroChem, Год журнала: 2023, Номер 10(20)

Опубликована: Сен. 20, 2023

Abstract Due to the high power density, fast charging speed, and long cycling stability, supercapacitors have been developed rapidly in area of electrical energy storage devices past decades. During application supercapacitors, it was found that properties electrode material can greatly affect supercapacitor performance. Recently, materials based on polymer waste‐derived carbon (PWCM) attracted much attention because low preparation cost, good performance, great benefits for environmental protection. This review aims describe recent research development summarize investigation state field PWCM electrodes prepared from polyethylene, polypropylene, polyethylene terephthalate, polystyrene, etc. The method performance are compared. relationship among methods, structure, electrochemical explored. Furthermore, prospects PWCMs were provided.

Язык: Английский

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Polymer Waste Valorization into Advanced Carbon Nanomaterials for Potential Energy and Environment Applications

Macromolecular Rapid Communications, Год журнала: 2024, Номер 45(7)

Опубликована: Янв. 20, 2024

Abstract The rise in universal population and accompanying demands have directed toward an exponential surge the generation of polymeric waste. estimate predicts that world‐wide plastic production will to ≈590 million metric tons by 2050, whereas 5000 more tires be routinely abandoned 2030. Handling this waste its detrimental consequences on Earth's ecosystem human health presents a significant challenge. Converting wastes into carbon‐based functional materials viz. activated carbon, graphene, nanotubes is considered most scientific adaptable method. Herein, world provides overview various sources wastes, modes build‐up, impact environment, management approaches. Update advances novel modifications made methodologies for converting diverse types carbon nanomaterials over last 5 years are given. A remarkable focus comprehend applications waste‐derived (PWDCNMs) CO 2 capture, removal heavy metal ions, supercapacitor‐based energy storage water splitting with emphasis correlation between PWDCNMs' properties their performances. This review offers insights emerging developments upcycling environment energy.

Язык: Английский

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Synergistic effect between the graphene electrodes and the BiFeO3-BaTiO3 composite to overcome the limit of capacitance in eco-friendly supercapacitors made with a seawater electrolyte

Journal of Alloys and Compounds, Год журнала: 2022, Номер 938, С. 168657 - 168657

Опубликована: Дек. 30, 2022

Язык: Английский

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Characterization of the Products of the Catalytic Pyrolysis of Discarded COVID-19 Masks over Sepiolite

Applied Sciences, Год журнала: 2023, Номер 13(5), С. 3188 - 3188

Опубликована: Март 2, 2023

This research aims to develop a new strategy valorize wasted COVID-19 masks based on chemical recycling by pyrolysis convert them into useful products. First, surgical and filtering face piece masks, as defined in Europe the EN 149 standard (FFP2), were thermally pyrolyzed at temperatures of 450, 500, 550 °C, yields valuable solid (biochar), liquid (biooil), syngas products their characteristics determined. At low temperatures, biochar formation was favored over biooil production, while high product yield enhanced. The highest found temperature 500 with both FFP2 achieving 59.08% 58.86%, respectively. Then, experiments performed °C two-stage catalytic reactor using sepiolite catalyst. Sepiolite characterized nitrogen adsorption–desorption isotherms Fourier-transform infrared spectroscopy. Results showed that process increased final (43.89% against 39.52% for 50.53% 39.41% masks). Furthermore, composition biooils significantly changed, increasing amount 2,4-Dimethyl-1-heptene other olefins, such 3-Eicosene, (E)-, 5-Eicosene, (E)-. Additionally, methane carbon dioxide content also experiments. Ultimately, effect regeneration its use consecutive tests examined. Characterization data that, higher use-regeneration sepiolite, modification textural properties, mainly changes pore volume. results indicated can be good source (especially from products).

Язык: Английский

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