Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate
Journal article, 2023

Polyethylene terephthalate (PET) as one of the most produced plastics contributes to global waste pollution. Upcycling PET into value-added products therefore is of environmental and economic interest. Terephthalic acid (TPA), the monomer of PET, is a common linker for metal-organic framework (MOF) synthesis; thus, PET-to-MOF upcycling raises much research attention. However, conventional PET-to-MOF upcycling often requires PET depolymerization with strong acids or bases and high temperatures, which can lead to environmental and energy penalties. As an alternative, PETase offers a sustainable approach to depolymerizing PET under mesophilic and mild pH conditions. Here we report UiO-66, MOF-5, and MIL-101 syntheses using enzymatically recycled TPA as linkers. The enzymatically recycled TPA demonstrated low impurity, and the obtained MOFs possessed comparable crystallinity, thermal stability, and surface area. These results reveal the feasibility of MOF synthesis by using enzymatically recycled PET.

enzyme

upcycling

PETase

PET-to-MOF

recycling

Metal-organic frameworks

Author

Zhejian Cao

Chalmers, Life Sciences, Systems and Synthetic Biology

Xiaozhi Fu

Chalmers, Life Sciences, Systems and Synthetic Biology

Hao Li

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Santosh Pandit

Chalmers, Life Sciences, Systems and Synthetic Biology

Francoise Mystere Amombo Noa

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Lars Öhrström

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Aleksej Zelezniak

Chalmers, Life Sciences, Systems and Synthetic Biology

Ivan Mijakovic

Chalmers, Life Sciences, Systems and Synthetic Biology

ACS Sustainable Chemistry & Engineering

2168-0485 (eISSN)

Vol. 11 43 15506-15512

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Subject Categories

Polymer Technologies

DOI

10.1021/acssuschemeng.3c05222

More information

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3/7/2024 9