Challenges Associated with the Production of Nanofibers

Processes, Journal Year: 2024, Volume and Issue: 12(10), P. 2100 - 2100

Published: Sept. 27, 2024

Nanofibers, with their high surface area-to-volume ratio and unique physical properties, hold significant promise for a wide range of applications, including medical devices, filtration systems, packaging, electronics, advanced textiles. However, development commercialization are hindered by several key challenges hazards. The main issues production cost yield, voltage, clogging, toxic materials driven complex techniques, which limit adoption. Additionally, there environmental health concerns associated nanofiber disposal, necessitating the safer more sustainable processes materials. Addressing these requires continued innovation in science industrial practices, as well concerted effort to balance production, material, surrounding condition parameters. This study emphasizes hazards electrospinning, centrifugal spinning, solution blow electro-blown wet melt spinning. It also biopolymers recycling eco-friendly practices avoid harming environment human beings.

Language: Английский

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Cellulose fiber derived from sugarcane bagasse and polyethylene glycol/acrylic acid/ branched polyethylenimine-based hydrogel composite prepared by gamma irradiation: A platform for mercury (II) ions adsorption

Environmental Advances, Journal Year: 2024, Volume and Issue: 17, P. 100561 - 100561

Published: June 29, 2024

In this study, cellulose was successfully purified from sugarcane bagasse by alkali treatment and bleaching process. Then, 2-10 wt% of added into polyethylene glycol acrylic acid-based hydrogel composite. 25 kGy gamma irradiation dose employed to form the gel. With presence various contents, no significant change functional group therefore observed. The composite thermally resisted up 250°C. microstructure exhibited as an interconnected porosity throughout network. Cellulose located inside gel fraction for all composites were reported be 92-97% 73-81%, respectively. swelling behavior very rapid within initial stage (5 hours) then, it presented a plateau region. significantly offered high dimensional stability. After that, in order enhance ability Hg2+ adsorption, bPEI coated onto surface FTIR evaluate N-H stretching. At neutral pH, defined optimal region adsorption. efficiency capacity adsorption 55.17% 82.94 mg/g 24 hours, This related pseudo-second-order kinetic model due R2 0.9941 indicating chemical Furthermore, EDX analysis confirmed that existence Hg surface. It remarkably noted inserted technique. provided great promise platform mercury ion

Language: Английский

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Dilution Effect of Tempo-Oxidized Cellulose Nanofibers on Reproduction of Daphnia Magna

Published: Jan. 1, 2025

Language: Английский

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Sustainability Meets Functionality: Green Design Approaches to Cellulose-Based Materials

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1563 - 1592

Published: March 26, 2025

Language: Английский

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Dilution effect of TEMPO-oxidized cellulose nanofibers on reproduction of Daphnia magna

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 294, P. 118101 - 118101

Published: March 31, 2025

The expanding use of 2,2,6,6-tetramethylpiperidine-1-oxyl radical-oxidized cellulose nanofibers (TEMPO-CNFs) raises concerns about their environmental release and potential ecological impacts. Evaluating effects is critical for ensuring sustainable use. In this study, we aimed to assess the ecotoxicity TEMPO-CNFs on Daphnia magna reproduction explore mechanisms underlying observed effects. Reproductive toxicity was evaluated according Organisation Economic Co-operation Development test guideline, determining no effect concentration (NOEC) 10 % (EC10). Mechanistic insights were investigated through water chemistry analyses, a feeding inhibition test, gut evacuation experiment, 10-day life table experiments. NOEC EC10 12.5 mg/L 3.4 mg/L, respectively. Results supported dilution-effect hypothesis, indicating reduced availability essential food, such as Chlorella, driver toxicity. Gut experiments indicated that in D. individuals excreted within 24 h when they transferred CNF-free environment. results suggest are unlikely impact unless exposure continuous at high concentrations. These findings support environmentally application with controlled exposure.

Language: Английский

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Cellulose-based nanostructured aerogels for leachate decontamination: towards sustainable phosphorus recovery from sewage sludge ash

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: unknown, P. 143638 - 143638

Published: Sept. 1, 2024

Language: Английский

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