Academic Journal
Gradient-channel quaternized chitosan/corncob-based aerogel membranes for efficient oil-water separation and dye removal.
| Τίτλος: | Gradient-channel quaternized chitosan/corncob-based aerogel membranes for efficient oil-water separation and dye removal. |
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| Συγγραφείς: | Song F; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Li J; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China. Electronic address: ljy@sdu.edu.cn., Ji M; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China. Electronic address: jimaocheng@sdu.edu.cn., Peng S; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Zhang Y; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Song X; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Li F; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Li J; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China., Man J; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, PR China. Electronic address: mj@sdu.edu.cn. |
| Πηγή: | International journal of biological macromolecules [Int J Biol Macromol] 2026 Oct; Vol. 379, pp. 153854. Date of Electronic Publication: 2026 Aug 05. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 7909578 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0003 (Electronic) Linking ISSN: 01418130 NLM ISO Abbreviation: Int J Biol Macromol Subsets: MEDLINE |
| Imprint Name(s): | Publication: Amsterdam : Elsevier Original Publication: Guildford, Eng., IPC Science and Technology Press. |
| Ιατρικοί όροι (MeSH): | Chitosan*/chemistry , Aerogels*/chemistry , Zea mays*/chemistry , Oils*/chemistry , Coloring Agents*/chemistry , Coloring Agents*/isolation & purification , Water*/chemistry , Water Purification*/methods , Membranes, Artificial*, Water Pollutants, Chemical/chemistry ; Water Pollutants, Chemical/isolation & purification ; Wastewater/chemistry ; Emulsions/chemistry ; Adsorption ; Porosity ; Phase Separation ; Hydrophobic and Hydrophilic Interactions |
| Περίληψη: | Oil-containing wastewater, particularly surfactant-stabilized oil-in-water emulsions, remains extremely challenging to treat due to its high stability and complex composition. In this study, a gradient porous aerogel membrane was prepared using quaternized chitosan and corn cobs via directed freezing and freeze-drying techniques. Quaternized chitosan endows the membrane with inherent hydrophilicity and a positively charged surface, while the incorporation of corn cobs enhances mechanical strength and improves dye removal capacity. The gradient pore structure further generates a capillary-assisted transport effect, thereby enhancing separation performance. This combination of structure and function confers the membrane with underwater superoleophobicity and electrostatic interaction capabilities, enabling efficient oil-water separation and dye adsorption. The membrane exhibited the most outstanding separation performance in both immiscible oil-in-water mixtures (11,190 L m-2 h-1, 99%) and oil-in-water emulsions prepared with anionic surfactants (1200 L m-2 h-1, 97%), while effectively removing various dyes and demonstrating good cycling stability. This study proposes a bio-based strategy that integrates structural regulation with interfacial functionality, providing a highly promising platform for multifunctional wastewater treatment. (Copyright © 2026 Elsevier B.V. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Corncob; Dye adsorption; Gradient pore structure; Oil-in-water separation; Quaternized chitosan |
| Substance Nomenclature: | 9012-76-4 (Chitosan) 0 (Aerogels) 0 (Oils) 0 (Coloring Agents) 059QF0KO0R (Water) 0 (Membranes, Artificial) 0 (Water Pollutants, Chemical) 0 (Wastewater) 0 (Emulsions) |
| Entry Date(s): | Date Created: 20260805 Date Completed: 20261016 Latest Revision: 20261016 |
| Update Code: | 20261016 |
| DOI: | 10.1016/j.ijbiomac.2026.153854 |
| PMID: | 42556675 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1879-0003 |
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| DOI: | 10.1016/j.ijbiomac.2026.153854 |