Mechanochemistry Milling of Waste Poly(Ethylene Terephthalate) into Metal–Organic Frameworks

He, Peigang; Hu, Zhen; Dai, Zhikun; Bai, Huiying; Fan, Zifen; Niu, Ran; Gong, Jiang; Zhao, Qiang; Tang, Tao

doi:10.1002/cssc.202201935

Cited by 34 publications

(15 citation statements)

References 68 publications

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“…This strategy enabled the successful synthesis of the powders of MIL-type MOFs. 118–124 In addition, a range of UiO-66 powders was prepared by in situ hydrolysis and ZrO 2 addition, 123 and a detailed review of synthesising MOFs from PET has been recently published. 111,124…”

Section: Overview Of the Functional Upcycling Strategy For Different ...mentioning

confidence: 99%

“…[118][119][120][121][122][123][124] In addition, a range of UiO-66 powders was prepared by in situ hydrolysis and ZrO 2 addition, 123 and a detailed review of synthesising MOFs from PET has been recently published. 111,124 In this context, de Vos et al applied surface hydrolysis to release carboxylic groups on PET surfaces without complete polymer chain destruction and transformed the final product from powdered MOFs to PET-based materials. 97,125 They extended the aforementioned procedure to grow MIL-53(Al) and UiO-66(Zr) as a reactor on the waste PET bottle itself.…”

Section: Overview Of the Functional Upcycling Strategy For Different ...mentioning

confidence: 99%

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“Functional upcycling” of polymer waste towards the design of new materials

et al. 2023

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Section: Overview Of the Functional Upcycling Strategy For Different ...mentioning

confidence: 99%

Section: Overview Of the Functional Upcycling Strategy For Different ...mentioning

confidence: 99%

“Functional upcycling” of polymer waste towards the design of new materials

et al. 2023

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“…One of the most recent works on the use of PET as ligand source reported a mechanochemical milling strategy to convert PET into different MOFs, containing La(III), Zr(IV), Ni(II), Co(II), Mn(II) and Ca(II) [ 145 ]. By mixing PET and NaOH, PET was first hydrolysed to Na 2 BDC.…”

Section: Towards Greener Pet-to-mof Conversionmentioning

confidence: 99%

Metal-organic frameworks and plastic: an emerging synergic partnership

Mastropietro

2023

Science and Technology of Advanced Materials

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Mismanagement of plastic waste results in its ubiquitous presence in the environment. Despite being durable and persistent materials, plastics are reduced by weathering phenomena into debris with a particle size down to nanometers. The fate and ecotoxicological effects of these solid micropollutants are not fully understood yet, but they are raising increasing concerns for the environment and people’s health. Even if different current technologies have the potential to remove plastic particles, the efficiency of these processes is modest, especially for nanoparticles. Metal-organic frameworks (MOFs) are crystalline nano-porous materials with unique properties, have unique properties, such as strong coordination bonds, large and robustus porous structures, high accessible surface areas and adsorption capacity, which make them suitable adsorbent materials for micropollutants. This review examines the preliminary results reported in literature indicating that MOFs are promising adsorbents for the removal of plastic particles from water, especially when MOFs are integrated in porous composite materials or membranes, where they are able to assure high removal efficiency, superior water flux and antifouling properties, even in the presence of other dissolved co-pollutants. Moreover, a recent trend for the alternative preparation of MOFs starting from plastic waste, especially polyethylene terephthalate, as a sustainable source of organic linkers is also reviewed, as it represents a promising route for mitigating the impact of the costs deriving from the widescale MOFs production and application. This connubial between MOFs and plastic has the potential to contribute at implementing a more effective waste management and the circular economy principles in the polymer life cycle.

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“…Recently, He et al. demonstrated the synthesis of MOFs through ball milling, using PET and metal salts as the starting materials [29] …”

Section: Commercial Polymersmentioning

confidence: 99%

Mechanochemical Degradation and Recycling of Synthetic Polymers

2023

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The accumulation of plastic waste, due to lack of recycling, has led to serious environmental pollution. Although mechanical recycling can alleviate this issue, it inevitably reduces the molecular weight and weakens the mechanical properties of materials and is not suitable for mixed materials. Chemical recycling, on the other hand, breaks the polymer into monomers or small-molecule constituents, allowing for the preparation of materials of quality comparable to that of the virgin polymers and can be applied to mixed materials. Mechanochemical degradation and recycling leverages the advantages of mechanical techniques, such as scalability and efficient energy use, to achieve chemical recycling. We summarize recent progress in mechanochemical degradation and recycling of synthetic polymers, including both commercial polymers and those designed for more efficient mechanochemical degradation. We also point out the limitations of mechanochemical degradation and present our perspectives on how the challenges can be mitigated for a circular polymer economy.

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Mechanochemistry Milling of Waste Poly(Ethylene Terephthalate) into Metal–Organic Frameworks

Cited by 34 publications

References 68 publications

“Functional upcycling” of polymer waste towards the design of new materials

“Functional upcycling” of polymer waste towards the design of new materials

Metal-organic frameworks and plastic: an emerging synergic partnership

Mechanochemical Degradation and Recycling of Synthetic Polymers

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