Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study
Quinoline (QN) is a basic nitrogenous compound normally present in the wastewater from petroleum industry, being a toxic and harmful contaminant of emerging concern. In contrast, separation methods for QN capture are essential from an economic point of view, since quinoline has a wide range of indus...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016423003109 |
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| author | Marcela Bino da Silva Santos Bruna Figueiredo do Nascimento Marcos Gomes Ghislandi Caroline Maria Bezerra de Araujo Maurício Alves da Motta Sobrinho |
| author_facet | Marcela Bino da Silva Santos Bruna Figueiredo do Nascimento Marcos Gomes Ghislandi Caroline Maria Bezerra de Araujo Maurício Alves da Motta Sobrinho |
| author_sort | Marcela Bino da Silva Santos |
| collection | DOAJ |
| description | Quinoline (QN) is a basic nitrogenous compound normally present in the wastewater from petroleum industry, being a toxic and harmful contaminant of emerging concern. In contrast, separation methods for QN capture are essential from an economic point of view, since quinoline has a wide range of industrial applications. This work aims to study and compare the application of two graphene oxide (GO) nanocomposites - graphene oxide/agar hydrogel (GO/agar) and magnetic graphene oxide (Mag.GO) – as adsorbents for aqueous quinoline. For Mag.GO, Freundlich isotherm model was best fitted to the equilibrium data, for GO/agar all isotherm models fitted the experimental data. The maximum experimental adsorption capacities in the equilibrium were approximately 25 mg g−1 for GO/agar, and 53 mg g−1 for Mag.GO. The increase in the acetate buffer concentration did not seem to significantly affect the adsorption capacities in both composites, which might indicate the selective adsorption of QN. Adsorption-desorption tests were performed for both nanocomposites with HCl and NaOH, and quinoline was efficiently recovered with NaOH in each case, even after three adsorption-desorption cycles. Although phytotoxicity assays with quinoline solution still indicated toxic effects before and after adsorption, both adsorbents proved to be good for quinoline removal, with Mag.GO showing greater adsorption capacity. |
| first_indexed | 2024-03-08T17:22:51Z |
| format | Article |
| id | doaj.art-935326f8b84d42389ac9519ef39056f8 |
| institution | Directory Open Access Journal |
| issn | 2666-0164 |
| language | English |
| last_indexed | 2024-03-08T17:22:51Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj.art-935326f8b84d42389ac9519ef39056f82024-01-03T04:12:56ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642024-06-019100605Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative studyMarcela Bino da Silva Santos0Bruna Figueiredo do Nascimento1Marcos Gomes Ghislandi2Caroline Maria Bezerra de Araujo3Maurício Alves da Motta Sobrinho4Federal University of Pernambuco, Department of Chemical Engineering, Av. dos Economistas - Cidade Universitária, Recife, PE, BrazilFederal University of Pernambuco, Department of Chemical Engineering, Av. dos Economistas - Cidade Universitária, Recife, PE, BrazilFederal Rural University of Pernambuco, Engineering Campus (UACSA), R. Cento e Sessenta e Três, 300 - Cohab, Cabo de Santo Agostinho, PE, BrazilFederal University of Pernambuco, Department of Chemical Engineering, Av. dos Economistas - Cidade Universitária, Recife, PE, Brazil; Faculty of Engineering of the University of Porto, Department of Chemical Engineering, R. Dr. Roberto Frias s/n, 4200-465, Porto, Portugal; Corresponding author. Federal University of Pernambuco, Department of Chemical Engineering, Av. dos Economistas - Cidade Universitária, Recife, PE, Brazil.Federal University of Pernambuco, Department of Chemical Engineering, Av. dos Economistas - Cidade Universitária, Recife, PE, BrazilQuinoline (QN) is a basic nitrogenous compound normally present in the wastewater from petroleum industry, being a toxic and harmful contaminant of emerging concern. In contrast, separation methods for QN capture are essential from an economic point of view, since quinoline has a wide range of industrial applications. This work aims to study and compare the application of two graphene oxide (GO) nanocomposites - graphene oxide/agar hydrogel (GO/agar) and magnetic graphene oxide (Mag.GO) – as adsorbents for aqueous quinoline. For Mag.GO, Freundlich isotherm model was best fitted to the equilibrium data, for GO/agar all isotherm models fitted the experimental data. The maximum experimental adsorption capacities in the equilibrium were approximately 25 mg g−1 for GO/agar, and 53 mg g−1 for Mag.GO. The increase in the acetate buffer concentration did not seem to significantly affect the adsorption capacities in both composites, which might indicate the selective adsorption of QN. Adsorption-desorption tests were performed for both nanocomposites with HCl and NaOH, and quinoline was efficiently recovered with NaOH in each case, even after three adsorption-desorption cycles. Although phytotoxicity assays with quinoline solution still indicated toxic effects before and after adsorption, both adsorbents proved to be good for quinoline removal, with Mag.GO showing greater adsorption capacity.http://www.sciencedirect.com/science/article/pii/S2666016423003109Graphene oxideNanocomposite adsorbentsQuinolineWater treatmentComparative analysis |
| spellingShingle | Marcela Bino da Silva Santos Bruna Figueiredo do Nascimento Marcos Gomes Ghislandi Caroline Maria Bezerra de Araujo Maurício Alves da Motta Sobrinho Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study Case Studies in Chemical and Environmental Engineering Graphene oxide Nanocomposite adsorbents Quinoline Water treatment Comparative analysis |
| title | Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study |
| title_full | Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study |
| title_fullStr | Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study |
| title_full_unstemmed | Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study |
| title_short | Production and characterization of graphene-based nanocomposites of different natures and their applications in aqueous quinoline adsorption: A comparative study |
| title_sort | production and characterization of graphene based nanocomposites of different natures and their applications in aqueous quinoline adsorption a comparative study |
| topic | Graphene oxide Nanocomposite adsorbents Quinoline Water treatment Comparative analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2666016423003109 |
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