Synthesis of MOF@aluminum saline slag-based composites for CO2 capture at moderate temperatures

Date

2025-09-01

Director

Publisher

Elsevier
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

  • AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-146935OB-C21/ES/ recolecta
  • AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-146935OB-C22/ES/ recolecta
  • Gobierno de Navarra//0011-4387-2023-000001/
Impacto
OpenAlexGoogle Scholar
No disponible en Scopus

Abstract

Combining metal–organic framework (MOF) materials and aluminum-containing saline slag residues opens a promising research avenue. This approach reduces the environmental impact of aluminum production by integrating industrial waste in the development of advanced materials that adhere to circular economy principles. It also addresses some inherent stability issues observed in pure MOFs. This study is the first to propose the use of this industrial by-product as a cost-effective and environmentally friendly modulator for controlling the phase transition between MIL-96(Al) and MIL-110(Al). For the first time, novel MOFs composites (MOF@RW1*-n; n = 25, 50, 75% waste) and saline slag waste (RW1*)—a by-product of initial aluminum extraction in an acidic medium—were synthesized in situ by preparing the MOF on RW1* via hydrothermal treatment and subsequently tested as CO2 adsorbents at up to 225 ◦C and 80 kPa. The optimized RW1* content in the composite proved critical in determining the formation of specific crystalline structures (MIL-96(Al) or MIL-110(Al)), ultimately yielding hybrid materials with enhanced textural properties and thermal stability.

Description

Keywords

Aluminum industrial waste, MOFs, MIL-96(Al), MIL-110(Al), CO2 adsorption

Department

Ciencias / Zientziak / Institute for Advanced Materials and Mathematics - INAMAT2

Faculty/School

Degree

Doctorate program

item.page.cita

Muñoz, H. J., Vicente, M. A., Korili, S. A., Gil, A. (2025) Synthesis of MOF@aluminum saline slag-based composites for CO2 capture at moderate temperatures. Chemical Engineering Journal, 519, 1-15. https://doi.org/10.1016/j.cej.2025.164973.

item.page.rights

© 2025 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC license.

Licencia

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