| Autor: |
Leonardo H. R. Alponti, Monize Picinini, Ernesto A. Urquieta-Gonzalez, Caroline S. da Silva, Simone Y. S. Silva, Sebastião C. Silva, Marilene N. de Oliveira, Juliana Viera, Maria Fatima das G. F. da Silva, Arlene G. Corrêa |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Reactions, Vol 4, Iss 4, Pp 552-568 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2624-781X |
| DOI: |
10.3390/reactions4040033 |
| Popis: |
Phytoremediation has been considered a sustainable environmental technology for heavy metals decontamination. In this work, we evaluated the metal contents by inductively coupled plasma optical emission spectrometry (ICP-OES) of three plant species collected in a mine in the Brazilian Amazonia area. Based on this analysis, Pluchea sagitallis leaves were selected to prepare metallic ecocatalysts. The leaf ashes and the obtained ecocatalysts were characterized by ICP-OES, X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2-physisorption measurements. Moreover, they were evaluated in the Biginelli and Hantzsch multicomponent reactions, furnishing the corresponding 3,4-dihydropyrimidin-2-(1H)-ones and 1,4-dihydropyridines with good to excellent yields. The best ecocatalyst was easily recovered and recycled in up to six reactions without a significant decrease in its performance. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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