Functionalization of recycled polymer and 3D printing into porous structures for selective recovery of copper from copper tailings

Selective copper recovery from copper tailings reduces environmental pollution caused by mining activities and provides a valuable source of copper. Furthermore, polymer waste accumulation and handling small functional materials like resins remains challenging. In this study, a 3D-printed adsorbent...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	Chemical engineering science Ročník 286; s. 119664
Hlavní autoři:	Ibebunjo, Kosisochi, El Ouardi, Youssef, Kwame Bediako, John, Iurchenkova, Anna, Repo, Eveliina
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	15.03.2024
Témata:	Engineering Science with specialization in Nanotechnology and Functional Materials Teknisk fysik med inriktning mot nanoteknologi och funktionella material
ISSN:	0009-2509, 1873-4405
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	Selective copper recovery from copper tailings reduces environmental pollution caused by mining activities and provides a valuable source of copper. Furthermore, polymer waste accumulation and handling small functional materials like resins remains challenging. In this study, a 3D-printed adsorbent for selective copper recovery from copper tailings was designed by functionalizing recycled polymer with a chelating resin and 3D-printing using selective laser sintering technique. The 3D-printed adsorbent was characterized, and its adsorption performance examined under varying conditions. The adsorption kinetics and adsorption isotherm fitted well to the pseudo-second-order kinetics and Langmuir isotherm models, suggesting chemical and monolayer adsorption processes. FTIR indicated coordination as the possible adsorption mechanism. Thermodynamics revealed an endothermic process. The 3D-printed adsorbent demonstrated an excellent Cu(II) adsorption, high selectivity towards Cu(II), and reusability. This work offers a promising 3D-printed adsorbent for selective Cu(II) recovery, while also addressing polymer waste and particle handling issues.
ISSN:	0009-2509 1873-4405
DOI:	10.1016/j.ces.2023.119664