Vacancy-rich NiFe-LDH/carbon paper as a novel self-supporting electrode for the electro-Fenton degradation of polyvinyl chloride microplastics

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 485, P. 136797 - 136797

Published: Dec. 9, 2024

Language: Английский

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Photoreforming of Plastic Waste to Sustainable Fuels and Chemicals: Waste to Energy

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

The extensive accumulation of plastic waste has given rise to severe environmental pollution issues. Contemporary conventional recycling methods, such as incineration and landfilling, contribute significantly pollutant emissions carbon footprints, against the principles sustainable development. Leveraging renewable solar energy transform plastics into high-value chemicals green fuels offers a more promising approach managing resources. This comprehensive review centers on recent advancements in photoreforming, categorizing them based types end products. Particular emphasis is placed evolving research landscape surrounding conversion through well economic considerations for large-scale photoreforming production. analysis conducted here reveals key pathways emerging trends that are poised shape trajectory enhanced photoconversion, ultimately influencing realization carbon-neutral future.

Language: Английский

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Catalytic oxidation upcycling of polyethylene terephthalate to commodity carboxylic acids

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Dec. 30, 2024

Catalytic upcycling of polyethylene terephthalate (PET) into high-value oxygenated products is a fascinating process, yet it remains challenging. Here, we present one-step tandem strategy to realize the thermal catalytic oxidation PET terephthalic acid (TPA) and glycolic (GA) instead ethylene glycol (EG). By using Au/NiO with rich oxygen vacancies as catalyst, successfully accelerate hydrolysis PET, accompanied by obtaining 99% TPA yield 87.6% GA yield. The results reveal that in NiO (NiO-O

Language: Английский

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Mechanistic Insights into Polypropylene Hydrogenolysis Using Ni/Al₂O₃ Catalysts

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Catalytic hydrogenolysis is emerging as an attractive strategy for converting polyolefins into high-value hydrocarbon liquids. A key challenge in catalytic the high methane yield. Recently, Ni-based catalysts have shown promise a cost-effective alternative to noble metals polyolefin hydrogenolysis. In this study, three alumina-supported Ni (12–13 wt % Ni) were prepared using acidic, neutral, and basic γ-Al2O3 via impregnation. The resulting Ni/A-Al2O3, Ni/N-Al2O3, Ni/B-Al2O3 used investigate reaction pathways n-hexadecane isotactic polypropylene Experiments conducted batch autoclave at 300 °C with 30 bar of H2 showed that exhibited highest reactivity, 5 h polypropylene, respectively. Using model compound hydrogenolysis, we attributed origin selectivity terminal C–C bond scission, occurring through both single-step cascade mechanisms. Detailed product analysis (GC–FID, GPC, NMR) comprehensive catalyst characterization revealed origins varied activity distribution polypropylene. increased ratio tetrahedrally coordinated Ni2+ metallic Ni0, stronger metal–support interactions, along surface basicity, promotes leading enhanced reactivity.

Language: Английский

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Pd-doped CoNi-based bifunctional electrodes for upcycling of PET plastic with ultra-long stability

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125076 - 125076

Published: Jan. 1, 2025

Language: Английский

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