fig8

From: Sustainable MOFs from waste PET: bridging polymer recycling with advanced material applications

Figure 8. Representative dual-waste-derived MOFs for water-related adsorption applications. (A) Sustainable upcycling of stainless-steel waste and PET-derived disodium terephthalate into a Cr-Ni-Fe-based MOF for phosphate removal from water; (B) Effect of adsorption time on phosphate uptake from aqueous solutions using MIL-101(Fe) and CrNiFe-MOF ([P] = 10 mg L^-1; adsorbent = 20 mg; V = 50 mL; T = 293 K); (C and D) H₂O adsorption isotherms collected at 298 K for waste-derived and commercial precursor-based MIL-101(Cr) MOFs, respectively; (E and F) Cyclic water adsorption isotherms for the 1st and 5th cycles and water uptake at 90% relative humidity for waste-derived MIL-101(Cr). (A and B) are adapted with permission from reference^[187]. Copyright 2024, American Chemical Society. (C-F) are adapted from reference^[184] under the terms of the Creative Commons Attribution 4.0 International license. Copyright 2025, The Author(s). MOFs: Metal-organic frameworks; PET: polyethylene terephthalate; RT: room temperature.