Hidrotermal Yöntem ile Nano-Perlit Takviyeli Nano-Hidroksiapatit Sentezi ve Karakterizasyonu

Abstract

Bu çalışmada, nano-perlit takviyeli nano-hidroksiapatit biyokompozitler kontrollü bir hidrotermal yöntemle sentezlenmiştir. Ham perlitten SPEX öğütme ile elde edilen nano-perlit, %1–4 ağırlık oranlarında hidroksiapatit yapısına dâhil edilmiştir. Kalsiyum nitrat tetrahidrat ve diamonyum hidrojen fosfat sulu ortamda nano-perlit ile homojenleştirilmiş ve 180 °C’de 10 saat hidrotermal işleme tabi tutulmuştur. Elde edilen numuneler SEM, EDS, Zeta potansiyeli, XRD ve FTIR teknikleriyle karakterize edilmiştir. Sonuçlar, %2–3 nano-perlit ilavesinin kalsiyum silikat ve kalsiyum fosfat gibi biyolojik olarak aktif fazların oluşumunu teşvik ettiğini göstermiştir. Artan perlit içeriği, Si–O–Si, Ca–P, OH⁻ ve PO₄³⁻ titreşim bantlarının şiddetini artırarak yapısal ve fonksiyonel modifikasyonu doğrulamıştır. Nano-perlitin, ekonomik ve sürdürülebilir bir faz düzenleyici ve takviye malzemesi olarak biyomalzeme uygulamaları için umut vadettiği gösterilmiştir.

Keywords

• Hidroksiapatit
• Hidrotermal yöntem
• Nano-biyokompozitler
• Perlit

Hydrothermal Synthesis and Characterization of Nano-Perlite Reinforced NanoHydroxyapatite

Abstract

This study presents the hydrothermal synthesis of nano-perlite reinforced nano-hydroxyapatite biocomposites for biomedical applications. Nano-perlite, produced from raw perlite via SPEX milling, was incorporated into hydroxyapatite at 1–4 wt.% ratios. Calcium nitrate tetrahydrate and diammonium hydrogen phosphate were dispersed with nano-perlite in aqueous media and subjected to hydrothermal treatment at 180 °C for 10 h. The synthesized composites were characterized using SEM, EDS, zeta potential analysis, XRD, and FTIR. The results demonstrated that 2–3 wt.% nano-perlite promoted the formation of bioactive phases such as calcium silicate and calcium phosphate. Increasing perlite content enhanced the intensities of Si–O–Si, Ca–P, OH⁻, and PO₄³⁻ vibrational bands, indicating structural modification and improved functional group development. The findings highlight nano-perlite as an effective reinforcing and phase-modifying agent, offering a cost-effective and sustainable alternative to conventional bioactive materials for next-generation biomaterial applications.

Keywords

• Hydroxyapatite
• Hydrothermal method
• Nano-biocompozites
• Perlite

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