A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies
Graphene oxide and chitosan composite material using as a high-efficiency and low-cost granular adsorbent for methylene blue removal was fabricated via self-assembling method. The effects of pH value, contact time, initial concentration, adsorbent dose, temperature, and recyclic stability on the ads...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024046796 |
| _version_ | 1797244973166362624 |
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| author | Huynh Vu Thanh Luong Thanh Phu Le Tran Lan Trinh Le Huynh Giao Dang Thi Bich Quyen Tran |
| author_facet | Huynh Vu Thanh Luong Thanh Phu Le Tran Lan Trinh Le Huynh Giao Dang Thi Bich Quyen Tran |
| author_sort | Huynh Vu Thanh Luong |
| collection | DOAJ |
| description | Graphene oxide and chitosan composite material using as a high-efficiency and low-cost granular adsorbent for methylene blue removal was fabricated via self-assembling method. The effects of pH value, contact time, initial concentration, adsorbent dose, temperature, and recyclic stability on the adsorption performance of methylene blue in aqueous solution were investigated in detail. Desorption process with the effects of solvents, contact time, and temperature were also conducted carefully in this study. The adsorption kinetics and adsorption isotherm of dye adsorption process showed that dye adsorption process was fitted to the pseudo-second-order kinetic model and the Freundlich adsorption isotherm, indicating a physical adsorption process with multilayer adsorption. The intra-particle diffusion model indicated that the dye adsorption by the granular adsorbent was strongly happened during the first 4 h. The thermodynamic study showed that the adsorption was a spontaneous and exothermic process and dye ions were condensed onto the surface of adsorbent. The maximum adsorption capacity of dye on the granular adsorbent was calculated as 951.35 mg/g and the adsorbent could maintain its adsorption performance after six cycles. In general, this study provided an efficient, cost-effective, and recyclable the granular adsorbent for dye separation from aqueous solution. |
| first_indexed | 2024-04-24T19:19:31Z |
| format | Article |
| id | doaj.art-459436fb0b0749499739ba9ddbe2f737 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T19:19:31Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-459436fb0b0749499739ba9ddbe2f7372024-03-26T04:26:54ZengElsevierHeliyon2405-84402024-04-01107e28648A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studiesHuynh Vu Thanh Luong0Thanh Phu Le1Tran Lan Trinh Le2Huynh Giao Dang3Thi Bich Quyen Tran4Faculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam; Applied Chemical Engineering Labotarary, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam; Corresponding author. Faculty of Chemical Engineering, Can Tho University, Campus II, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam.Faculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam; Applied Chemical Engineering Labotarary, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet NamFaculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam; Applied Chemical Engineering Labotarary, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet NamFaculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet Nam; Applied Chemical Engineering Labotarary, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet NamFaculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho 94000, Viet NamGraphene oxide and chitosan composite material using as a high-efficiency and low-cost granular adsorbent for methylene blue removal was fabricated via self-assembling method. The effects of pH value, contact time, initial concentration, adsorbent dose, temperature, and recyclic stability on the adsorption performance of methylene blue in aqueous solution were investigated in detail. Desorption process with the effects of solvents, contact time, and temperature were also conducted carefully in this study. The adsorption kinetics and adsorption isotherm of dye adsorption process showed that dye adsorption process was fitted to the pseudo-second-order kinetic model and the Freundlich adsorption isotherm, indicating a physical adsorption process with multilayer adsorption. The intra-particle diffusion model indicated that the dye adsorption by the granular adsorbent was strongly happened during the first 4 h. The thermodynamic study showed that the adsorption was a spontaneous and exothermic process and dye ions were condensed onto the surface of adsorbent. The maximum adsorption capacity of dye on the granular adsorbent was calculated as 951.35 mg/g and the adsorbent could maintain its adsorption performance after six cycles. In general, this study provided an efficient, cost-effective, and recyclable the granular adsorbent for dye separation from aqueous solution.http://www.sciencedirect.com/science/article/pii/S2405844024046796Graphene oxide-chitosanGranular adsorbentMethylene blueRecyclic stability |
| spellingShingle | Huynh Vu Thanh Luong Thanh Phu Le Tran Lan Trinh Le Huynh Giao Dang Thi Bich Quyen Tran A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies Heliyon Graphene oxide-chitosan Granular adsorbent Methylene blue Recyclic stability |
| title | A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies |
| title_full | A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies |
| title_fullStr | A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies |
| title_full_unstemmed | A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies |
| title_short | A graphene oxide based composite granule for methylene blue separation from aqueous solution: Adsorption, kinetics and thermodynamic studies |
| title_sort | graphene oxide based composite granule for methylene blue separation from aqueous solution adsorption kinetics and thermodynamic studies |
| topic | Graphene oxide-chitosan Granular adsorbent Methylene blue Recyclic stability |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024046796 |
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