Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate

Zhejian Cao; Xiaozhi Fu; Hao Li; Santosh Pandit; Francoise M. Amombo Noa; Lars Öhrström; Aleksej Zelezniak; Ivan Mijakovic

doi:10.1021/acssuschemeng.3c05222

Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate

Zhejian Cao^*, Xiaozhi Fu, Hao Li, Santosh Pandit, Francoise M. Amombo Noa, Lars Öhrström, Aleksej Zelezniak, Ivan Mijakovic^*

^*Corresponding author for this work

Chalmers University of Technology

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

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.

Original language	English
Journal	ACS Sustainable Chemistry and Engineering
Volume	11
Issue number	43
Pages (from-to)	15506–15512
ISSN	2168-0485
DOIs	https://doi.org/10.1021/acssuschemeng.3c05222
Publication status	Published - 2023

Keywords

Metal−organic frameworks
PET-to-MOF
Upcycling
PETase
Recycling
Enzyme

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title = "Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate",

abstract = "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.",

keywords = "Metal−organic frameworks, PET-to-MOF, Upcycling, PETase, Recycling, Enzyme",

author = "Zhejian Cao and Xiaozhi Fu and Hao Li and Santosh Pandit and Noa, {Francoise M. Amombo} and Lars {\"O}hrstr{\"o}m and Aleksej Zelezniak and Ivan Mijakovic",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors. Published by American Chemical Society.",

year = "2023",

doi = "10.1021/acssuschemeng.3c05222",

language = "English",

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TY - JOUR

T1 - Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate

AU - Cao, Zhejian

AU - Fu, Xiaozhi

AU - Li, Hao

AU - Pandit, Santosh

AU - Noa, Francoise M. Amombo

AU - Öhrström, Lars

AU - Zelezniak, Aleksej

AU - Mijakovic, Ivan

PY - 2023

Y1 - 2023

N2 - 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.

AB - 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.

KW - Metal−organic frameworks

KW - PET-to-MOF

KW - Upcycling

KW - PETase

KW - Recycling

KW - Enzyme

U2 - 10.1021/acssuschemeng.3c05222

DO - 10.1021/acssuschemeng.3c05222

M3 - Journal article

AN - SCOPUS:85174977109

SN - 2168-0485

VL - 11

SP - 15506

EP - 15512

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

IS - 43

ER -

Synthesis of Metal-Organic Frameworks through Enzymatically Recycled Polyethylene Terephthalate

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Keywords

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