Knowledge Agora



Similar Articles

Title Synergistic chemo-enzymatic hydrolysis of poly(ethylene terephthalate) from textile waste
ID_Doc 29834
Authors Quartinello, F; Vajnhandl, S; Valh, JV; Farmer, TJ; Voncina, B; Lobnik, A; Acero, EH; Pellis, A; Guebitz, GM
Title Synergistic chemo-enzymatic hydrolysis of poly(ethylene terephthalate) from textile waste
Year 2017
Published Microbial Biotechnology, 10.0, 6
Abstract Due to the rising global environment protection awareness, recycling strategies that comply with the circular economy principles are needed. Polyesters are among the most used materials in the textile industry; therefore, achieving a complete poly(ethylene terephthalate) (PET) hydrolysis in an environmentally friendly way is a current challenge. In this work, a chemo-enzymatic treatment was developed to recover the PET building blocks, namely terephthalic acid (TA) and ethylene glycol. To monitor the monomer and oligomer content in solid samples, a Fourier-transformed Raman method was successfully developed. A shift of the free carboxylic groups (1632cm(-1)) of TA into the deprotonated state (1604 and 1398cm(-1)) was observed and bands at 1728 and 1398cm(-1) were used to assess purity of TA after the chemo-enzymatic PET hydrolysis. The chemical treatment, performed under neutral conditions (T=250 degrees C, P=40bar), led to conversion of PET into 85% TA and small oligomers. The latter were hydrolysed in a second step using the Humicola insolens cutinase (HiC) yielding 97% pure TA, therefore comparable with the commercial synthesis-grade TA (98%).
PDF https://doi.org/10.1111/1751-7915.12734

Similar Articles

ID Score Article
26311 Valh, JV; Voncina, B; Lobnik, A; Zemljic, LF; Skodic, L; Vajnhandl, S Conversion of polyethylene terephthalate to high-quality terephthalic acid by hydrothermal hydrolysis: the study of process parameters(2020)Textile Research Journal, 90, 13-14
9279 Uekert, T; DesVeaux, JS; Singh, A; Nicholson, SR; Lamers, P; Ghosh, T; McGeehan, JE; Carpenter, AC; Beckham, GT Life cycle assessment of enzymatic poly(ethylene terephthalate) recycling(2022)Green Chemistry, 24.0, 17
24725 Subramanya, SM; Mu, YY; Savage, PE Effect of Cellulose and Polypropylene on Hydrolysis of Polyethylene Terephthalate for Chemical Recycling(2022)Acs Engineering Au, 2, 6
20128 Zimmermann, W Biocatalytic recycling of polyethylene terephthalate plastic(2020)Philosophical Transactions Of The Royal Society A-Mathematical Physical And Engineering Sciences, 378, 2176
14289 Sabde, S; Yadav, GD; Narayan, R Conversion of waste into wealth in chemical recycling of polymers: Hydrolytic depolymerization of polyethylene terephthalate into terephthalic acid and ethylene glycol using phase transfer catalysis(2023)
29654 de Castro, AM; Carniel, A; Stahelin, D; Chinelatto, LS; Honorato, HD; de Menezes, SMC High-fold improvement of assorted post-consumer poly(ethylene terephthalate) (PET) packages hydrolysis using Humicola insolens cutinase as a single biocatalyst(2019)
14748 Badia, JD; Ballesteros-Garrido, R; Gamir-Cobacho, A; Gil-Castell, O; Cháfer, A Chemical recycling of post-consumer poly(ethylene terephthalate) (PET) driven by the protic ionic liquid 2-HEAA: Performance, kinetics and mechanism(2024)Journal Of Environmental Chemical Engineering, 12, 4
29804 Castro-Rodríguez, JA; Rodríguez-Sotres, R; Farrés, A Determinants for an Efficient Enzymatic Catalysis in Poly(Ethylene Terephthalate) Degradation(2023)Catalysts, 13.0, 3
26637 Ren, TX; Zhan, HH; Xu, HZ; Chen, LF; Shen, W; Xu, YD; Zhao, DF; Shao, YY; Wang, YT Recycling and high-value utilization of polyethylene terephthalate wastes: A review(2024)
25800 Ravikumar, D; Mani, P; Bernaurdshaw, N; Vajiravelu, S Microwave-Induced Chemical Recycling of Colored Polyester Textile Wastes Promoted by Zn[(L)Proline]2, as a Recyclable Homogeneous Catalyst(2024)Waste And Biomass Valorization, 15, 8
Scroll