Thermal treated sugarcane bagasse for acetylsalicylic acid removal: dynamic and equilibrium studies, cycles of reuse and mechanisms
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Le résumé fourni par la source
Sugarcane bagasse, an abundant residue from ethanol and sugar industry, was used in its natural form (SB) and carbonised (CS) as adsorbent for removing acetylsalicylic acid from aqueous solutions. The surface area, porosity, functional groups and surface charges of the adsorbents were characterised by Brunauer–Emmett–Teller and Barret–Joyner–Halenda methods, Fourier transform infrared spectroscopy and point of zero charge. Analysis indicated that C- and O-containing functional groups may be involved in the adsorption process. Batch experiments were also performed to evaluate the effects of pH, temperature and time on the sorption. The materials exhibited high adsorption efficiency at low pH. Results revealed that the pseudo-first-order kinetic model and pseudo-second-order provided the best fitting to the experimental data for biosorbent SB and biochar CS, respectively. Liu isotherm model describes the adsorption equilibrium for biochar suggesting that the carbonised surface had a heterogeneous nature with Qmax of 32.73 mg g−1 at 298 K. Besides, intraparticle diffusion model suggests that adsorption of ASA onto activated carbon was controlled by multiple steps. This study demonstrated that carbonised sugarcane bagasse is a potential adsorbent for removing acetylsalicylic acid from aqueous solutions.
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
- Thermal treated sugarcane bagasse for acetylsalicylic acid removal: dynamic and equilibrium studies, cycles of reuse and mechanisms
- Date Crossref
- 10/10/2022
- 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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Universidade Tecnológica Federal do Paraná pays non établi dans la noticeUniversité ou école supérieure
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Universidade Estadual de Maringá pays non établi dans la noticeUniversité ou école supérieure
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The Federal University of Technology – Paraná (UTFPR) Environmental Sciences and Technology Graduate Program pays non établi dans la noticeUniversité ou école supérieure
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State University of Maringá (UEM) Department of Chemical Engineering pays non établi dans la noticeUniversité ou école supérieure
Universidade Tecnológica Federal do Paraná, Universidade Estadual de Maringá et Environmental Sciences and Technology Graduate Program — The Federal University of Technology – Paraná (UTFPR), avec 1 autre affiliation.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.