Facile surface modification of 3D-printed biopolymer filter via acetone treatment for enhanced copper hexacyanoferrate immobilization and selective ammonium capture

Key Points

• Enhanced copper hexacyanoferrate immobilization improves ammonium capture efficiency, indicating effectiveness in filtration systems.
• A notable increase in ammonium capture was observed, with improvements reaching up to 30% after treatment.
• Assessment using acetone treatment for surface modification on 3D-printed biopolymer structures was conducted.
• These findings highlight the potential for improved filtration methods in wastewater treatment, emphasizing sustainable material use.