Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions
In this work, we develop a mussel-inspired biosorbent combined with graphene oxide for removal of organic dyes in water sources. The composite was prepared via self-polymerization of dopamine in weak alkaline solution containing graphene oxide at ambient condition. Morphological and structural studi...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S014765132300297X |
| _version_ | 1797851991300374528 |
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| author | Vu Thi Thu Mai Hai Trieu Nguyen Hoang Thuy An Nguyen Tien Dat Nguyen Dieu Linh Nguyen Ba Manh |
| author_facet | Vu Thi Thu Mai Hai Trieu Nguyen Hoang Thuy An Nguyen Tien Dat Nguyen Dieu Linh Nguyen Ba Manh |
| author_sort | Vu Thi Thu |
| collection | DOAJ |
| description | In this work, we develop a mussel-inspired biosorbent combined with graphene oxide for removal of organic dyes in water sources. The composite was prepared via self-polymerization of dopamine in weak alkaline solution containing graphene oxide at ambient condition. Morphological and structural studies revealed that polydopamine has gradually grown to cover the surface of graphene oxide flakes, partially reduced these flakes, and somehow form many grains (size around 20 nm) on the flakes instead of making very large aggregates as usual. The mass ratio between two components of the composite was also investigated to find the optimal one which provides enough surface area (20 m2.g−1) and maintain adhesive sites in order to ensure high-efficiency removal of organic molecules. The adsorption kinetics and isotherms of as-prepared adsorbent towards methylene blue were found to fit well with pseudo-first order kinetics model and Langmuir isotherm. The maximum adsorption capacity (qm) and Langmuir constant (kL) were estimated to be 270 mg.g−1 and 0.49 L. mg−1. The as-prepared bio-sorbent is very promising for remediation of water sources contaminated with cationic organic molecules and heavy metal ions. |
| first_indexed | 2024-04-09T19:26:48Z |
| format | Article |
| id | doaj.art-86982b67a99c4e24ade7660efbae8ea5 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-04-09T19:26:48Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-86982b67a99c4e24ade7660efbae8ea52023-04-05T08:05:49ZengElsevierEcotoxicology and Environmental Safety0147-65132023-04-01255114793Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutionsVu Thi Thu0Mai Hai Trieu1Nguyen Hoang Thuy An2Nguyen Tien Dat3Nguyen Dieu Linh4Nguyen Ba Manh5University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Corresponding author.University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet NamHanoi National University of Education (HNUE), 144 Xuan Thuy, Cau Giay, Hanoi, Viet NamHanoi University of Science and Technology (HUST), 1 Dai Co Viet, Hai Ba Trung, Hanoi, Viet NamUniversity of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet NamInstitute of Chemistry (IOC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet NamIn this work, we develop a mussel-inspired biosorbent combined with graphene oxide for removal of organic dyes in water sources. The composite was prepared via self-polymerization of dopamine in weak alkaline solution containing graphene oxide at ambient condition. Morphological and structural studies revealed that polydopamine has gradually grown to cover the surface of graphene oxide flakes, partially reduced these flakes, and somehow form many grains (size around 20 nm) on the flakes instead of making very large aggregates as usual. The mass ratio between two components of the composite was also investigated to find the optimal one which provides enough surface area (20 m2.g−1) and maintain adhesive sites in order to ensure high-efficiency removal of organic molecules. The adsorption kinetics and isotherms of as-prepared adsorbent towards methylene blue were found to fit well with pseudo-first order kinetics model and Langmuir isotherm. The maximum adsorption capacity (qm) and Langmuir constant (kL) were estimated to be 270 mg.g−1 and 0.49 L. mg−1. The as-prepared bio-sorbent is very promising for remediation of water sources contaminated with cationic organic molecules and heavy metal ions.http://www.sciencedirect.com/science/article/pii/S014765132300297XNanosorbentMethylene blueWater remediationMussel-inspired surface chemistryGraphene oxide |
| spellingShingle | Vu Thi Thu Mai Hai Trieu Nguyen Hoang Thuy An Nguyen Tien Dat Nguyen Dieu Linh Nguyen Ba Manh Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions Ecotoxicology and Environmental Safety Nanosorbent Methylene blue Water remediation Mussel-inspired surface chemistry Graphene oxide |
| title | Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| title_full | Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| title_fullStr | Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| title_full_unstemmed | Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| title_short | Mussel – Inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| title_sort | mussel inspired biosorbent combined with graphene oxide for removal of organic pollutants from aqueous solutions |
| topic | Nanosorbent Methylene blue Water remediation Mussel-inspired surface chemistry Graphene oxide |
| url | http://www.sciencedirect.com/science/article/pii/S014765132300297X |
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