Research article | Open Access
Acta Natura et Scientia 2025, Vol. 6(2) 92-101
Impact of Zeta Potential on Copper Adsorption of Surface-Modified Hydroxyapatites Derived From Fish Bone Waste
pp. 92 - 101 | DOI: https://doi.org/10.61326/actanatsci.v6i2.393
Publish Date: September 22, 2025 | Single/Total View: 0/0 | Single/Total Download: 0/0
Abstract
Zeta potential emerges as a crucial parameter in understanding particle surface charges and assessing the stability of colloidal systems. It also serves as a key indicator in determining electrostatic interactions between surfaces and ions. In this study, hydroxyapatite (HA) derived from fish waste was functionalized with histidine (HA4) and 4-Aminohippuric acid (HA5), and their surface properties and heavy metal ion (Cu2+) adsorption capacities were investigated. Zeta potential measurements performed after surface modification showed that both modifications induced a negative charge on the surface. The surface modified with histidine exhibited a zeta potential in the range of -3.48 to -5.09 mV, while the surface modified with 4-Aminohippuric acid demonstrated a higher negative charge. Adsorption experiments revealed that HA5 exhibited a superior Cu2+ binding capacity of 9.96 mg/g compared to HA4 (9.52 mg/g). The findings indicate that zeta potential and the presence of functional groups on the surface play a significant role in the retention of heavy metal ions. These results suggest that modified fish bone surfaces can serve as effective and sustainable adsorbents for environmental applications.
Keywords: Fish bone, Zeta potential, Adsorption, Copper
APA 7th edition
Kizilkaya, B. (2025). Impact of Zeta Potential on Copper Adsorption of Surface-Modified Hydroxyapatites Derived From Fish Bone Waste. Acta Natura et Scientia, 6(2), 92-101. https://doi.org/10.61326/actanatsci.v6i2.393
Harvard
Kizilkaya, B. (2025). Impact of Zeta Potential on Copper Adsorption of Surface-Modified Hydroxyapatites Derived From Fish Bone Waste. Acta Natura et Scientia, 6(2), pp. 92-101.
Chicago 16th edition
Kizilkaya, Bayram (2025). "Impact of Zeta Potential on Copper Adsorption of Surface-Modified Hydroxyapatites Derived From Fish Bone Waste". Acta Natura et Scientia 6 (2):92-101. https://doi.org/10.61326/actanatsci.v6i2.393
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