Multi-membrane formation in chitosan hydrogel shell by the addition of goethite nanoparticles
| Autor: | Hai Nguyen Tran, Seung Han Woo, Godfred Ohemeng-Boahen, Divine Damertey Sewu |
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| Rok vydání: | 2020 |
| Předmět: |
Goethite
Polymers and Plastics education Organic Chemistry Nanoparticle 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Congo red Chitosan chemistry.chemical_compound Membrane Adsorption chemistry Chemical engineering visual_art Materials Chemistry engineering visual_art.visual_art_medium Biopolymer Self-assembly 0210 nano-technology |
| Zdroj: | Carbohydrate Polymers. 229:115543 |
| ISSN: | 0144-8617 |
| Popis: | In this study, chitosan (an abundant natural biopolymer) was used as a polysaccharide source to synthesize multi-membrane hydrogel capsules (MHC) using a novel approach. The MHC material was formed in a single step self-assembly approach by an in-situ immobilization of goethite nanoparticles (GNP) during the chitosan-anionic surfactant complex formation reaction. The pivotal role of GNP in the formation of multi-membrane was thoroughly discussed herein. Some important factors effecting the formation and property of MHC were explored. The results of adsorption study (Co ≈ 1000 mg/L, 30 °C, and pH ≈ 7.0) demonstrated that MHC (1321 ± 35.6 mg/g) exhibited excellent adsorptive capacity for Congo red dye compared to HC (244 ± 35.6 mg/g) and GNP (91.1 ± 19.6 mg/g). Therefore, the unique characteristics of multi-membranes structures breeds an exciting prospect of application in diverse fields, especially wastewater treatment because of its excellent adsorption capacity for dye contaminants. |
| Databáze: | OpenAIRE |
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