20.500.12556/DiRROS-23013 Upcycling of plastic waste into multi-walled carbon nanotubes as efficient organic dye adsorbent Multi-walled CNTs with an average diameter of about 80 nm, a length of several micrometers and surface area (SBET) of 100 m2 g–1 were obtained by pyrolysis of low-density polyethylene waste. The potential of the resulting MWCNTs material to purify water containing organic dyes was tested with Bezaktiv Blau HE-RM (BB) and Bezaktiv Rot S-3B (BR) reactive dyes. 200 mg L–1 MWCNT material was used to follow the adsorption of 30 mg L–1, 40 mg L–1, 50 mg L–1 and 60 mg L–1 BB and BR at pH 3 and a temperature of ~25 °C. The results have shown that this material has a high potential as a sorbent, and its adsorption capacity of 257 mg g–1 (for Bezaktiv BlauHE-RM) and 213 mg g–1 (for Bezaktiv Rot) is close to some commercial MWCNTs and functionalized MWCNT-based adsorbents. The adsorption process was very fast, reaching 80–90% of the dye removal in 10–15 minutes, and the equilibrium time was reached in 40–60 minutes. The adsorption isotherm showed that the Langmuir model was more suitable than the Freundlich model for describing the adsorption properties of the pollutants. adsorption anionic dyes upcycling plastic waste carbon nanotubes adsorpcija anionska barvila recikliranje plastičnih odpadkov karbonske nanocevke true false true Angleški jezik Slovenski jezik Copyright (c) 2025 Gordana Bogoeva-Gaceva, Meri Sokolovska, Viktor Stefov, Metodija Najdoski, Sebastijan Kovačič Neznano 2025-07-16 09:59:30 2025-08-21 09:04:26 2025-10-24 03:52:56 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Soavtorji: Meri Sokolovska, Viktor Stefov, Metodija Najdoski and Sebastijan Kovačič; Opis vira z dne 21. 3. 2025; str. 154-163 no. 1 Vol. 72 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-01-01 54 1580-3155 10.17344/acsi.2025.9145 229767171 https://acsi-journal.eu/index.php/ACSi/article/view/9145 0 701db893-621c-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33673 RAZ_Gaceva_Gordana_Bogoeva_2025.pdf RAZ_Gaceva_Gordana_Bogoeva_2025.pdf 1 34285F20019DCDFB8782B75DEDC901B7 bf2d4cddebd6bce6cadd6b8a05a4f01dd729e518199749af3b9684b8bf6fd341 76a77cbb-621c-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33674 Slovensko kemijsko društvo Acta chimica slovenica 0 0 0