Synthesis of MOF-5 using terephthalic acid as a ligand obtained from polyethylene terephthalate (PET) waste and its test in CO2 adsorption

VILLARROEL-ROCHA, D.; BERNINI, M. C.; ARROYO-GÓMEZ, J. J.; VILLARROEL-ROCHA, J.; SAPAG, K.

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING

BRAZILIAN SOC CHEMICAL ENG

Año: 2022

0104-6632

In this work, we present the preparation of MOF-5 using terephthalic acid as a ligand obtained from polyethylene terephthalatewaste. The results showed that the obtained terephthalic acid gave similar features to the commercial one. The synthesizedMOF was fully characterized and tested for CO2adsorption at 35 °C and at atmospheric pressure, under static and dynamicconditions, presenting adsorption capacities of 2.5 and 2 mmol g−1, respectively, which are higher than the reported values.At 1000 kPa, in static conditions, the adsorption capacity was 7.8 mmol g−1. The obtained results demonstrated that thisMOF presented improved structural stability and CO2adsorption capacity compared with the results reported elsewhere.