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SINTESIS NANOPARTIKEL MAGNETIT (Fe3O4) TERMODIFIKASI EKSTRAK SERASAH DAUN GLODOKAN (Polyalthia Longifolia) SERTA APLIKASINYA SEBAGAI KATALIS PADA PIROLISIS LIMBAH PLASTIK LDPE (Low-Density polyethylene)
Low-Density Polyethylene (LDPE) plastic waste is difficult to degrade, leading to waste accumulation and environmental pollution. Catalytic pyrolysis offers an effective solution for converting plastic waste into liquid fuel, but it requires an efficient catalyst. Magnetite nanoparticles (Fe₃O₄) synthesized using Polyalthia longifolia leaf litter extract show potential as an eco-friendly catalyst. This study aims to characterize Fe₃O₄ nanoparticles using Polyalthia longifolia leaf litter extract, evaluate their effect on the pyrolysis of LDPE waste in terms of oil yield and quality, and analyze the chemical composition of the resulting oil. Fe₃O₄-SDG nanoparticles were synthesized via co-precipitation and characterized using FTIR and XRD. LDPE pyrolysis was conducted with varying catalyst masses (0–2.5 g), followed by analysis of oil quality (density, viscosity, calorific value, flash point, and water content) and chemical composition using GC-MS. FTIR analysis revealed Fe–O bonds at 428.15–553.10 cm⁻¹, while XRD confirmed a crystalline structure with an average size of 3.74 nm. The catalyst increased oil yield up to 73% (2.5 g), with a density of 0.85706 g/mL, viscosity of 2.98 cSt, and calorific value of 45.79 MJ/kg, approaching diesel standards. However, the flash point (46°C) was low, and water content (4.97%) was high. GC-MS analysis detected a dominant phenolic compound content (41.25%). The Fe₃O₄ using Polyalthia longifolia leaf litter extract catalyst effectively enhanced pyrolysis oil yield and quality but requires further purification to reduce water and phenolic content. Fractionation distillation, optimized storage, and diesel engine performance testing are recommended.
FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA
SINTESIS NANOPARTIKEL MAGNETIT (Fe3O4) TERMODIFIKASI EKSTRAK SERASAH DAUN GLODOKAN (Polyalthia Longifolia) SERTA APLIKASINYA SEBAGAI KATALIS PADA PIROLISIS LIMBAH PLASTIK LDPE (Low-Density polyethylene) (Text)
SINTESIS NANOPARTIKEL MAGNETIT (Fe3O4) TERMODIFIKASI EKSTRAK SERASAH DAUN GLODOKAN (Polyalthia Longifolia) SERTA APLIKASINYA SEBAGAI KATALIS PADA PIROLISIS LIMBAH PLASTIK LDPE (Low-Density polyethylene) (Other)
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