Molecular Characterization of the Organic Fraction of Municipal Solid Waste and Compositional Evolution during Oxidative Processes Assessed by HR-MAS 13C NMR Spectroscopy
| Autor: | Giuseppina De Luca, Giorgio Celebre, Rosachiara A. Salvino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Municipal solid waste Resolution (mass spectrometry) OFMSW composition 020209 energy Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences lcsh:Technology Matrix (chemical analysis) lcsh:Chemistry NMR spectroscopy high-resolution magic angle spinning (HR-MAS) 0202 electrical engineering electronic engineering information engineering Magic angle spinning General Materials Science Instrumentation Chemical composition lcsh:QH301-705.5 0105 earth and related environmental sciences Fluid Flow and Transfer Processes lcsh:T Process Chemistry and Technology General Engineering monitoring oxidative treatments Nuclear magnetic resonance spectroscopy lcsh:QC1-999 Computer Science Applications NMR spectra database organic materials chemistry lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 oxidative Fenton process lcsh:Engineering (General). Civil engineering (General) Carbon lcsh:Physics |
| Zdroj: | Applied Sciences Volume 11 Issue 5 Applied Sciences, Vol 11, Iss 2267, p 2267 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11052267 |
| Popis: | The use of high-resolution magic angle spinning (HR-MAS) 13C NMR spectroscopy is proposed here as an innovative and non-destructive approach to investigate the chemical composition of the organic fraction of municipal solid waste (OFMSW) and for monitoring the evolution of their composition during the oxidative iron-based Fenton treatment to which the initial matrix is subjected. The high quality and the good resolution of the 13C HR-MAS NMR spectra allowed an accurate assignment and quantification of the various types of carbon present in the analyzed organic matrix. Moreover, the HR-MAS has also shown its effectiveness in monitoring the different oxidative processes to which the same initially organic matrix has been subjected. The results obtained from the HR-MAS spectra on the collected samples during the different oxidative experiments, indicate that Fenton treatment is able to modify the percentage of the different types of carbons as a function of the concentrations of both Fenton reactants, H2O2 and Fe2+ salt, and of the oxidative process time. |
| Databáze: | OpenAIRE |
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