Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization
In this study, a bio-derived precipitating agent/ligand, palm kernel oil, has been used as an alternative route for the green synthesis of nanoparticles of Fe-doped Co<sub>3</sub>O<sub>4</sub> via the co-precipitation reaction. The palm oil was extracted from dried palm kerne...
Guardado en:
| Autores principales: | , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/5f8e85c226b3443781f3035391a6db54 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:5f8e85c226b3443781f3035391a6db54 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:5f8e85c226b3443781f3035391a6db542021-11-25T18:30:11ZGreen Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization10.3390/nano111128332079-4991https://doaj.org/article/5f8e85c226b3443781f3035391a6db542021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2833https://doaj.org/toc/2079-4991In this study, a bio-derived precipitating agent/ligand, palm kernel oil, has been used as an alternative route for the green synthesis of nanoparticles of Fe-doped Co<sub>3</sub>O<sub>4</sub> via the co-precipitation reaction. The palm oil was extracted from dried palm kernel seeds by crushing, squeezing and filtration. The reaction of the palm kernel oil with potassium hydroxide, under reflux, yielded a solution containing a mixture of potassium carboxylate and excess hydroxide ions, irrespective of the length of saponification. The as-obtained solution reacts with an aqueous solution containing iron and cobalt ions to yield the desired metallo-organic precursor, iron cobalt carboxylate. Characterization of the precursors by IR and gas chromatography (GC) attests to the presence of carboxylate fatty acids in good agreement with the proportion contained in the oil, and ICP confirms that the metallic ratios are in the proportion used during the synthesis. Analysis of the products thermally decomposed between 400 °C and 600 °C by XRD, EDX, TEM and ToF-SIMS, established that cobalt iron oxide nanoparticles (Co<sub>(1−x)</sub>Fe<sub>x</sub>)<sub>3</sub>O<sub>4</sub> were obtained for x ≤ 0.2 and a nanocomposite material (Co<sub>(1−x)</sub>Fe<sub>x</sub>)<sub>3</sub>O<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> for x ≥ 0.2, with sizes between 22 and 9 nm. ToF-SIMS and XRD provided direct evidence of the progressive substitution of cobalt by iron in the Co<sub>3</sub>O<sub>4</sub> crystal structure for x ≤ 0.2.Cedrik Ngnintedem YontiPatrice Kenfack TsobnangRoussin Lontio FomekongFrancois DevredEric MignoletYvan LarondelleSophie HermansArnaud DelcorteJohn Lambi NgoluiMDPI AGarticlegreen synthesispalm kernel oilcarboxylate fatty acidsco-precipitation methodFe-doped Co<sub>3</sub>O<sub>4</sub>ChemistryQD1-999ENNanomaterials, Vol 11, Iss 2833, p 2833 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
green synthesis palm kernel oil carboxylate fatty acids co-precipitation method Fe-doped Co<sub>3</sub>O<sub>4</sub> Chemistry QD1-999 |
| spellingShingle |
green synthesis palm kernel oil carboxylate fatty acids co-precipitation method Fe-doped Co<sub>3</sub>O<sub>4</sub> Chemistry QD1-999 Cedrik Ngnintedem Yonti Patrice Kenfack Tsobnang Roussin Lontio Fomekong Francois Devred Eric Mignolet Yvan Larondelle Sophie Hermans Arnaud Delcorte John Lambi Ngolui Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| description |
In this study, a bio-derived precipitating agent/ligand, palm kernel oil, has been used as an alternative route for the green synthesis of nanoparticles of Fe-doped Co<sub>3</sub>O<sub>4</sub> via the co-precipitation reaction. The palm oil was extracted from dried palm kernel seeds by crushing, squeezing and filtration. The reaction of the palm kernel oil with potassium hydroxide, under reflux, yielded a solution containing a mixture of potassium carboxylate and excess hydroxide ions, irrespective of the length of saponification. The as-obtained solution reacts with an aqueous solution containing iron and cobalt ions to yield the desired metallo-organic precursor, iron cobalt carboxylate. Characterization of the precursors by IR and gas chromatography (GC) attests to the presence of carboxylate fatty acids in good agreement with the proportion contained in the oil, and ICP confirms that the metallic ratios are in the proportion used during the synthesis. Analysis of the products thermally decomposed between 400 °C and 600 °C by XRD, EDX, TEM and ToF-SIMS, established that cobalt iron oxide nanoparticles (Co<sub>(1−x)</sub>Fe<sub>x</sub>)<sub>3</sub>O<sub>4</sub> were obtained for x ≤ 0.2 and a nanocomposite material (Co<sub>(1−x)</sub>Fe<sub>x</sub>)<sub>3</sub>O<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> for x ≥ 0.2, with sizes between 22 and 9 nm. ToF-SIMS and XRD provided direct evidence of the progressive substitution of cobalt by iron in the Co<sub>3</sub>O<sub>4</sub> crystal structure for x ≤ 0.2. |
| format |
article |
| author |
Cedrik Ngnintedem Yonti Patrice Kenfack Tsobnang Roussin Lontio Fomekong Francois Devred Eric Mignolet Yvan Larondelle Sophie Hermans Arnaud Delcorte John Lambi Ngolui |
| author_facet |
Cedrik Ngnintedem Yonti Patrice Kenfack Tsobnang Roussin Lontio Fomekong Francois Devred Eric Mignolet Yvan Larondelle Sophie Hermans Arnaud Delcorte John Lambi Ngolui |
| author_sort |
Cedrik Ngnintedem Yonti |
| title |
Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| title_short |
Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| title_full |
Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| title_fullStr |
Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| title_full_unstemmed |
Green Synthesis of Iron-Doped Cobalt Oxide Nanoparticles from Palm Kernel Oil via Co-Precipitation and Structural Characterization |
| title_sort |
green synthesis of iron-doped cobalt oxide nanoparticles from palm kernel oil via co-precipitation and structural characterization |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/5f8e85c226b3443781f3035391a6db54 |
| work_keys_str_mv |
AT cedrikngnintedemyonti greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT patricekenfacktsobnang greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT roussinlontiofomekong greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT francoisdevred greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT ericmignolet greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT yvanlarondelle greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT sophiehermans greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT arnauddelcorte greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization AT johnlambingolui greensynthesisofirondopedcobaltoxidenanoparticlesfrompalmkerneloilviacoprecipitationandstructuralcharacterization |
| _version_ |
1718411076746346496 |