Hydrolytic depolymerisation of polyesters over heterogeneous ZnO catalyst

Francesca Liguori; Carmen Moreno-Marrodán; Werner Oberhauser; Elisa Passaglia; Pierluigi Barbaro

doi:10.1039/D3SU00089C

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Hydrolytic depolymerisation of polyesters over heterogeneous ZnO catalyst†

Francesca Liguori,

^a Carmen Moreno-Marrodán,

^a Werner Oberhauser,

^a Elisa Passaglia

^b and Pierluigi Barbaro

*^a

Author affiliations

* Corresponding authors

^a Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
E-mail: pierluigi.barbaro@iccom.cnr.it

^b Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici, Via Moruzzi 1, 56124 Pisa, Italy

Abstract

The hydrolytic depolymerisation of polylactic acid (PLA) and polyethylene terephthalate (PET) was accomplished in neat water using heterogenous ZnO catalysts. Up to 100% and 98% selectivity to the complete hydrolysis products was achieved at full PLA and PET conversion at 130 °C and 180 °C, respectively. The catalytic species could be partially (for PLA) recovered and reused, though with a gradual activity drop.

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Article information

DOI: https://doi.org/10.1039/D3SU00089C
Article type: Communication
Submitted: 13 Mar 2023
Accepted: 02 Aug 2023
First published: 03 Aug 2023
This article is Open Access

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RSC Sustain., 2023,1, 1394-1403

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Hydrolytic depolymerisation of polyesters over heterogeneous ZnO catalyst

F. Liguori, C. Moreno-Marrodán, W. Oberhauser, E. Passaglia and P. Barbaro, RSC Sustain., 2023, 1, 1394 DOI: 10.1039/D3SU00089C

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RSC Sustainability

Hydrolytic depolymerisation of polyesters over heterogeneous ZnO catalyst†

Abstract

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Hydrolytic depolymerisation of polyesters over heterogeneous ZnO catalyst

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