Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation

This study reports the synthesis of Fe3O4/carbon sphere (CS) nanocomposites via a solvothermal method followed by co-precipitation for the efficient adsorption of organic dyes. The structural and morphological characteristics of the nanocomposites were analyzed using scanning electron microscope, X-...

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Main Authors: Ta Duc Khue, Pham Kim Ngoc, Do Thanh Viet, Tran Dang Thanh, Tuan Hong Nguyen, Pham Van Vinh, Dinh Lam Nguyen, Pham Duc Thang, Anh Tuan Duong, Raja Das, Huu Tuan Nguyen
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Journal of Science: Advanced Materials and Devices
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468217925000334
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author Ta Duc Khue
Pham Kim Ngoc
Do Thanh Viet
Tran Dang Thanh
Tuan Hong Nguyen
Pham Van Vinh
Dinh Lam Nguyen
Pham Duc Thang
Anh Tuan Duong
Raja Das
Huu Tuan Nguyen
author_facet Ta Duc Khue
Pham Kim Ngoc
Do Thanh Viet
Tran Dang Thanh
Tuan Hong Nguyen
Pham Van Vinh
Dinh Lam Nguyen
Pham Duc Thang
Anh Tuan Duong
Raja Das
Huu Tuan Nguyen
author_sort Ta Duc Khue
collection DOAJ
description This study reports the synthesis of Fe3O4/carbon sphere (CS) nanocomposites via a solvothermal method followed by co-precipitation for the efficient adsorption of organic dyes. The structural and morphological characteristics of the nanocomposites were analyzed using scanning electron microscope, X-ray diffraction, and energy-dispersive X-ray spectroscopy, confirming the successful integration of Fe3O4 nanoparticles onto the CS surface. Adsorption kinetics followed the pseudo-second-order model, suggesting chemisorption as the primary mechanism for methylene blue (MB) and rhodamine B (RB) dye removal. The adsorption process aligned well with the Langmuir isotherm model, with optimized nanocomposites achieving nearly 100 % removal of MB and RB within just 5 min. In contrast, Fe3O4 nanoparticles showed poor adsorption, removing less than 10 % of MB and 24 % of RB after 120 min, whereas CS removed 93.5 % of MB and 73 % of RB in the same timeframe. Featuring strong magnetic properties for easy separation, high stability, and exceptional adsorption efficiency, Fe3O4/CS nanocomposites emerge as promising reusable adsorbents for wastewater treatment.
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issn 2468-2179
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publishDate 2025-06-01
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spelling doaj-art-df3689ba9e4d466f8daa98ab4e3d5c7f2025-08-20T03:12:10ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792025-06-0110210088010.1016/j.jsamd.2025.100880Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluationTa Duc Khue0Pham Kim Ngoc1Do Thanh Viet2Tran Dang Thanh3Tuan Hong Nguyen4Pham Van Vinh5Dinh Lam Nguyen6Pham Duc Thang7Anh Tuan Duong8Raja Das9Huu Tuan Nguyen10Faculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet NamFaculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet NamAcademy of Military Science and Technology, Hanoi, 10000, Viet NamInstitute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, 10000, Viet NamCenter for High Technology Development, Vietnam Academy of Science and Technology, Hanoi, 10000, Viet NamFaculty of Engineering Physics and Nanotechnology, VNU-University of Engineering and Technology, 144 Xuan Thuy Road, Cau Giay District, Hanoi, 100000, Viet NamFaculty of Engineering Physics and Nanotechnology, VNU-University of Engineering and Technology, 144 Xuan Thuy Road, Cau Giay District, Hanoi, 100000, Viet NamFaculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet NamFaculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet Nam; Phenikaa Institute for Advanced Study (PIAS), Phenikaa University, Hanoi, 12116, Viet NamFaculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet Nam; Corresponding author.Phenikaa Institute for Advanced Study (PIAS), Phenikaa University, Hanoi, 12116, Viet Nam; Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, 12116, Viet Nam; Corresponding author. Phenikaa Institute for Advanced Study (PIAS), Phenikaa University, Hanoi, 12116, Viet NamThis study reports the synthesis of Fe3O4/carbon sphere (CS) nanocomposites via a solvothermal method followed by co-precipitation for the efficient adsorption of organic dyes. The structural and morphological characteristics of the nanocomposites were analyzed using scanning electron microscope, X-ray diffraction, and energy-dispersive X-ray spectroscopy, confirming the successful integration of Fe3O4 nanoparticles onto the CS surface. Adsorption kinetics followed the pseudo-second-order model, suggesting chemisorption as the primary mechanism for methylene blue (MB) and rhodamine B (RB) dye removal. The adsorption process aligned well with the Langmuir isotherm model, with optimized nanocomposites achieving nearly 100 % removal of MB and RB within just 5 min. In contrast, Fe3O4 nanoparticles showed poor adsorption, removing less than 10 % of MB and 24 % of RB after 120 min, whereas CS removed 93.5 % of MB and 73 % of RB in the same timeframe. Featuring strong magnetic properties for easy separation, high stability, and exceptional adsorption efficiency, Fe3O4/CS nanocomposites emerge as promising reusable adsorbents for wastewater treatment.http://www.sciencedirect.com/science/article/pii/S2468217925000334Iron oxideNanoparticlesNanocompositeCarbon sphereAdsorption
spellingShingle Ta Duc Khue
Pham Kim Ngoc
Do Thanh Viet
Tran Dang Thanh
Tuan Hong Nguyen
Pham Van Vinh
Dinh Lam Nguyen
Pham Duc Thang
Anh Tuan Duong
Raja Das
Huu Tuan Nguyen
Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
Journal of Science: Advanced Materials and Devices
Iron oxide
Nanoparticles
Nanocomposite
Carbon sphere
Adsorption
title Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
title_full Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
title_fullStr Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
title_full_unstemmed Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
title_short Efficient adsorption of organic dyes using Fe3O4/carbon sphere nanocomposites: Synthesis and performance evaluation
title_sort efficient adsorption of organic dyes using fe3o4 carbon sphere nanocomposites synthesis and performance evaluation
topic Iron oxide
Nanoparticles
Nanocomposite
Carbon sphere
Adsorption
url http://www.sciencedirect.com/science/article/pii/S2468217925000334
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