Structural, Optical, and Dielectric Studies of Eco-Engineered Eu³⁺-Activated Hydroxyapatite from Fish Bone Waste for Multifunctional Applications

DOI

10.2991/978-94-6239-727-9_5How to use a DOI?

Keywords

Hydroxyapatite; Fish bone; Europium; Photoluminescence; Dielectric; COMSOL

Abstract

In the present work, hydroxyapatite (HAp) was sustainably extracted from fish-bone biowaste and converted into a functional ceramic material through appropriate thermal treatment. The thermal behavior of the biogenic precursor was investigated using thermogravimetric and differential thermal analysis (TG–DTA) to determine suitable calcination conditions for the removal of organic matter and formation of a thermally stable phase. Phase evolution and structural optimization were studied by X-ray diffraction (XRD), which confirmed the formation of phase-pure and well-crystallized hydroxyapatite, with optimal crystallinity obtained in the temperature range of 1100–1200 ℃. Europium (Eu³⁺) ions were successfully incorporated into the hydroxyapatite lattice to introduce optical functionality, and the photoluminescence studies revealed intense and spectrally pure red emission arising from characteristic Eu³⁺ transitions. In addition, finite element simulation using COMSOL Multiphysics was employed to examine the electric potential and electric-field distribution in a hydroxyapatite-based capacitor structure, which showed stable and uniform field profiles, indicating good dielectric behavior. Overall, this study demonstrates a simple and sustainable route to convert fish-bone biowaste into a multifunctional hydroxyapatite material with promising optical and dielectric potential for photonic and capacitor-related applications.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - M. Krishnam Raju
AU  - Krunal Patel
AU  - Raj Kumar Samudrala
AU  - Neelima Kamjula
AU  - P. Abdul Azeem
PY  - 2026
DA  - 2026/07/22
TI  - Structural, Optical, and Dielectric Studies of Eco-Engineered Eu³⁺-Activated Hydroxyapatite from Fish Bone Waste for Multifunctional Applications
BT  - Proceedings of the International Conference on Sustainable Micro-Nano Materials & Innovative Technology (ICSUMMIT 2026)
PB  - Atlantis Press
SP  - 44
EP  - 56
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-727-9_5
DO  - 10.2991/978-94-6239-727-9_5
ID  - Raju2026
ER  -