Publication: Copper ion removal from aqueous solutions using 3d-printed pla scaffolds coated with chemically treated magnetic particles
| datacite.subject.fos | oecd::Engineering and technology::Materials engineering::Materials engineering | |
| dc.contributor.author | Liew, Jun Hui | |
| dc.date.accessioned | 2025-10-15T08:50:15Z | |
| dc.date.available | 2025-10-15T08:50:15Z | |
| dc.date.issued | 2025-08-05 | |
| dc.description.abstract | Heavy metal pollution, especially from copper ions, poses significant environmental and health risks due to its persistence and bioaccumulation in water sources. This research develops and evaluates a 3D-printed PLA scaffold coated with APTES-modified silica-coated magnetic particles for efficient copper ion removal from wastewater and assesses the scaffold’s reusability. Magnetite (Fe₃O₄) nanoparticles were synthesized via co-precipitation, surface-modified with silica to form a core-shell structure, and functionalized with APTES to introduce amine groups. These nanoparticles were dip-coated onto 3D-printed PLA scaffolds. Characterization by FTIR, zeta potential, and SEM-EDX confirmed successful modification and coating. Batch adsorption experiments examined the effects of coating layers, pH, contact time, and reusability on copper adsorption capacity. Results confirmed the successful synthesis of APTES-modified silica-coated magnetic particles. A single dip-coated PLA scaffold showed the highest adsorption capacity compared to multiple coatings. Optimal adsorption occurred at pH 5, with a maximum capacity of 115 mg/g after 120 minutes. The coated scaffold retained over 80% adsorption capacity after four adsorption-desorption cycles. These findings suggest the APTES-modified silica-coated magnetic particle coated PLA scaffold is a promising, sustainable adsorbent for heavy metal removal from water. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/22822 | |
| dc.language.iso | en | |
| dc.title | Copper ion removal from aqueous solutions using 3d-printed pla scaffolds coated with chemically treated magnetic particles | |
| dc.type | Resource Types::text::report::technical report | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |