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Title

Sized-controlled ZIF-8 nanoparticle synthesis from recycled mother liquors: Environmental impact assessment

AuthorsGarcía Palacín, Marta; Martínez, José I. ; Paseta, Lorena; Deacon, Adam; Johnson, Timothy; Malankowska, Magdalena; Téllez, Carlos; Coronas, Joaquín
KeywordsZIF-8
Particle size
Mother liquor
Recycling
MOF
Issue Date2020
PublisherAmerican Chemical Society
CitationACS Sustainable Chemistry and Engineering 8(7): 2973–2980 (2020)
AbstractThe effect of different deprotonators as well as washing steps and drying procedure on the synthesis of ZIF-8 from the mother liquor was investigated. The morphology, thermal stability, crystallinity, and surface area of the synthesized MOF were investigated. In addition, life-cycle assessment (LCA) or, in other words, eco-balance, was implemented as well. LCA compares the full range of environmental effects associated with the product by evaluating all inputs and outputs of material flows and predicting how such flow will affect the environment. ZIF-8 nanocrystals were synthesized from the recycled mother liquors using NaOH or NH4OH thus preserving the main characteristics of the ZIF-8 nanoparticles derived from the initial synthesis. The rest of the characterization methods confirmed the suitability of the synthesis methodology considering the phase purity of the obtained ZIF-8 and nanometer size particles. This procedure enabled us not only to obtain phase pure ZIF-8 but also to substantially decrease the amount of solvent used for washing making it a sustainable process.
Publisher version (URL)https://doi.org/10.1021/acssuschemeng.9b07593
URIhttp://hdl.handle.net/10261/219112
DOIhttp://dx.doi.org/10.1021/acssuschemeng.9b07593
E-ISSN2168-0485
Appears in Collections:(ICMA) Artículos
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