Synthesis and Analysis Physical /Chemical Properties of Hydroxyapatite-Chitosan Nanocomposite Pepi Helza Yanti (a*), Dwi Suparwati (a), Resti Resmalina, (a), Tarra Satria (a)lease Just Try to Submit This Sample Abstract
Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Riau Kampus Bina Widya Km 12,5 Pekanbaru 28293
Abstract
Hydroxyapatite (HAp) and hydroxyapatite chitosan composite (HCC) were synthesized using Geloina coaxans shells and sodium dihydrogen phosphate (NaH2PO4) as precursors with the (Ca/P) ratio of 1.67. Chitosan is a biopolymer derived from the shells of Scylla olivacea. Several parameter reactions were used to evaluate hydroxyapatite and HCC. X-ray diffraction (XRD) analysis showed that the characteristic peaks for hydroxyapatite and HCC appear at 2 theta = 31.77, with an average crystal size of 37 nm. Brunauer Emmet Teller (BET) analysis, a technique for measuring surface area, indicated that HCC has a surface area of 3.68 m2/g and an average pore radius of 3.68 nm. Fourier Transform Infrared Spectroscopy (FTIR) confirmed the presence of specific absorption bands associated with hydroxyl (O-H), phosphate (PO43-), and amine (-NH) groups in both hydroxyapatite and HCC. Scanning Electron Microscope (SEM) analysis, which provides high-resolution images of surfaces, revealed that hydroxyapatite exhibits a compact, spherical morphology, whereas HCC shows a more porous, loosely spherical structure
