Effective adsorbents developed from magnetic iron oxides and thiamin for the removal of hazardous organic contaminants
Rattachement africain : vn, id, tw, jp. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Among the removal techniques for organic contaminants in water, adsorption is a highly selected method due to many advantages in cost, simple process, and good efficiency. A green and straightforward synthesis for generating an iron oxide-grafted thiamin based adsorbents is developed. Their physicochemical and adsorption properties varied depending on the mixing ratio of ferrous chloride salt and thiamin. Adsorbents exhibited different magnetic properties owing to the presence of Fe3O4, α-Fe2O3, and γ-Fe2O3 crystalline phases. Their surface charges of iron oxide and functionalized thiamin-adsorbents were 25 mV and 30–52.3 mV, respectively while the C and N contents of thiamin ranged from 3.87–14.5% and 3.95–8.15% at different mixing ratios. Besides, scanning electron microscope (SEM) and thermogravimetric analysis (TGA) were used to analyze the morphology and thermal stability of adsorbents, respectively. This work investigated the effect of thiamin content in the material composition-based iron oxide on the adsorption capacity of anionic dyes. At the optimal condition (pH 5, an adsorbent dosage of 2 g/L, and a 30 mg/L concentration), the MO adsorption efficiency reached 77.56% in 30 min. Meanwhile, a 93.83% EBT was removed at pH 7, an adsorbent dosage of 2 g/L, and a 90 mg/L concentration at the same time. The adsorption mechanism follows the Langmuir isotherm model and the pseudo second-order (PSO) kinetic model. The adsorption processes are spontaneous and exothermic. The characteristic vibrations of functional groups of adsorbents were identified via Fourier transform infrared spectroscopy (FTIR). After four cycles, adsorbents could be employed albeit with a lower efficiency.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Effective adsorbents developed from magnetic iron oxides and thiamin for the removal of hazardous organic contaminants
- Date Crossref
- 10/12/2024
- Éditeur
- Informa UK Limited
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Can Tho University Stem cell Laboratory pays non établi dans la noticeUniversité ou école supérieure
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Universitas Katolik Widya Mandala Surabaya pays non établi dans la noticeUniversité ou école supérieure
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Vietnam Academy of Science and Technology pays non établi dans la noticeOrganisme public
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Hanoi University of Science and Technology pays non établi dans la noticeUniversité ou école supérieure
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National Taiwan University of Science and Technology Department of Materials Science and Engineering pays non établi dans la noticeUniversité ou école supérieure
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RIKEN Center for Sustainable Resource Science pays non établi dans la noticeStructure de recherche
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Faculty of Mechanical Engineering pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Chemical Engineering pays non établi dans la noticeUniversité ou école supérieure
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Widya Mandala Surabaya Catholic University Department of Chemical Engineering pays non établi dans la noticeUniversité ou école supérieure
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University of Science and Technology of Hanoi pays non établi dans la noticeUniversité ou école supérieure
Stem cell Laboratory — Can Tho University, Universitas Katolik Widya Mandala Surabaya et Vietnam Academy of Science and Technology, avec 7 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.