3D-Printed Filters for Efficient Heavy Metal Removal from Water Using PLA@CS/HAP Composites.

ABSTRACT: Chitosan/Hydroxyapatite composites, enriched with relatively active -NH₂ and -OH groups, have emerged as promising adsorbents for heavy metal removal. In this study, we harnessed the potential of CS/HAP composites by developing monolithic PLA@CS/HAP filters utilizing 3D printing and freeze-drying techniques. These filters possess both macroscopic and microscopic porous structures, endowing them with exceptional capabilities for removing heavy metals from water. The adsorption properties of CS/HAP composites were explored by varying the dosage, duration, and initial concentrations of copper ions. The maximum adsorption capacity for Cu²⁺ was determined to be approximately 119+/-1 mg/g at the natural pH and 298 K. Notably, the monolithic PLA@CS/HAP filters demonstrated r

SUBMITTER: Wang Y 

PROVIDER: S-EPMC10610860 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature