Publication: 3d-printed pla scaffolds coated with chitosan–alginate hybrid for lead ion removal From aqueous solutions
| datacite.subject.fos | oecd::Engineering and technology::Materials engineering | |
| dc.contributor.author | Muhammad Shamin Shafiq bin Abdul Wahab | |
| dc.date.accessioned | 2025-10-29T17:09:19Z | |
| dc.date.available | 2025-10-29T17:09:19Z | |
| dc.date.issued | 2025-08 | |
| dc.description.abstract | The global water crisis is increasingly exacerbated by heavy metal contamination, particularly lead (Pb²⁺), which poses serious risks due to its toxicity and persistence. Conventional removal methods are often costly, inefficient, and environmentally unsustainable. This research aims to design, and fabricate a novel 3D- printed bio-inspired composite scaffold utilizing chitosan-alginate coatings on polylactic acid (PLA) for enhanced heavy metal adsorption. This research presents a novel 3D-printed bio-inspired scaffold for enhanced Pb²⁺ adsorption, utilizing chitosan–alginate coatings on polylactic acid (PLA) frameworks. The scaffolds were fabricated using Fused Deposition Modeling (FDM) and treated with 1M NaOH prior to dip-coating with chitosan–alginate solutions in a 1:1 ratio. Surface characterization via SEM, FTIR, and zeta potential analysis confirmed uniform coating (164.2 ± 5 μm), presence of functional groups, and a stable negative surface charge (-29.7 mV). Batch adsorption tests using 100 mg/L Pb²⁺ solutions showed a maximum adsorption capacity of 77.52 mg/g with 92.93% removal efficiency. Kinetic modeling indicated pseudo-second-order behavior (R² ≈ 0.9919), suggesting chemisorption as the dominant mechanism. This research shown the potential of 3D-printed, biopolymer- coated scaffolds as efficient, sustainable adsorbents. This research demonstrates the potential of 3D-printed, biopolymer-coated scaffolds as efficient, sustainable adsorbents. The findings offer insights into polyelectrolyte complexation and provide a scalable platform for future water purification technologies. threat of heavy metal pollution is becoming increasingly serious and poses a threat to human health and the natural environment (Vidu et al., 2020). The sources of the | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/23018 | |
| dc.language.iso | en | |
| dc.title | 3d-printed pla scaffolds coated with chitosan–alginate hybrid for lead ion removal From aqueous solutions | |
| dc.type | Resource Types::text::report::technical report | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |