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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2023
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=47480084009 https://www.redalyc.org/journal/474/47480084009/ https://www.redalyc.org/journal/474/47480084009/html/ https://www.redalyc.org/journal/474/47480084009/47480084009.epub https://www.redalyc.org/journal/474/47480084009/movil |
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- Curcumin dye adsorption in aqueous solution by carbon-based date palm seed: Preparation, characterization, and isotherm adsorption A.B.D. Nandiyanto R. Ragadhita M. Fiandini R. Maryanti Ingeniería carbon curcumin particles Adsorption date palm seed This work examined the isotherm adsorption of carbon microparticles from date palm seeds. To produce carbon microparticles, date palm seeds were carbonized at 250°C for three hours, followed by a saw-milling and sieving procedure. To support the analysis, several characterizations were performed, including physicochemical properties and morphology characterizations (by microscope), chemical composition analysis (Fourier transform infrared), and adsorption examination (by adsorbing curcumin in aqueous solution, compared to 10 adsorption isotherm models). To confirm the phenomena during the adsorption of curcumin, three sizes of carbon microparticles were employed (i.e., 500, 250, and 100 μm). All adsorption processes were done in the batch reactor at room temperature and pressure. The results showed that adsorption efficiency correlated to the size of the carbon microparticles as adsorbent, in which the efficiencies of carbon microparticles with sizes of 500, 250, and 100 μm were 34.10, 49.70, and 53.44%, respectively. The isotherm adsorption showed the carbon microparticles followed Langmuir > Dubinin-Radushkevich > Jovanovic > Freundlich > Halsey models. The analysis showed that the adsorption was done in a normal, spontaneous, and favorable process, confirming monolayer and multilayer formation on heterogeneous surfaces. The process follows cooperative adsorption with chemical and physical interactions. The paper includes information on date palm seed adsorbents produced for water treatment and their prospective use as adsorbents, which can be used for solving issues in the Sustainable Development Goals (SDGs). 2023 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47480084009 https://www.redalyc.org/journal/474/47480084009/ https://www.redalyc.org/journal/474/47480084009/html/ https://www.redalyc.org/journal/474/47480084009/47480084009.epub https://www.redalyc.org/journal/474/47480084009/movil 10.22201/icat.24486736e.2023.21.5.1972 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.5 Vol.21