Hakim, Hanan (2021) Sintesis Sederhana Dan Karakterisasi Hidroksiapatit Mesopori Menggunakan Kitosan Sebagai Soft-Template Dengan Metode Kopresipitasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hidroksiapatit mesopori (HAM) disintesis melalui metode ko-presipitasi menggunakan kitosan sebagai pengarah struktur template, kalsium nitrat sebagai sumber kalsium, dan diammonium fosfat sebagai sumber fosfat, serta larutan ammonium sebagai pengontrol pH. Variasi berat kitosan yang ditambahkan adalah 5, 10, 20, 60, dan 100 mg. Hasil sintesis kemudian dikeringkan pada suhu 85 °C, dan dikalsinasi pada 650 °C, dilanjutkan dengan karakterisasi menggunakan difraktometer sinar-X (XRD), Fourier transform infrared (FTIR), dan adsorpsi-desorpsi nitrogen. Hasil sintesis hidroksiapatit mesopori memiliki luas permukaan antara 18,164 – 27,396 m2g-1, diameter pori rata-rata antara 3,10 sampai 3,89 nm, dan volume pori sekitar 0,023-0,047 cm3/g. Kandidat terbaik hasil penelitian ini adalah hidroksiapatit mesopori dengan penambahan kitosan 10 mg (HAC-10), yang memiliki distribusi diameter pori, luas permukaan dan volume pori yaitu berturut-turut 2,19-5,1 nm, 25,624 m2/g, dan 0,038 cm3/g. Hasil karakterisasi dengan transmisi elektron mikroskop (TEM) menunjukkan bahwa hidroksiapatit mesopori memiliki morfologi batang dan formasi pori tubular serta memiliki diameter pori antara 4,1 hingga 20,31 nm. Pada perbandingan antara TEM dengan PSA, hasil ukuran partikel PSA lebih besar secara signifikan akibat aglomerasi partikel HAM.
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Mesoporous hydroxyapatite (MHA) were synthesized via the co-precipitation method using chitosan as a structure-directing template, calcium nitrate as the calcium source, and diammonium phosphate as the phosphate source, and ammonium solution as pH controller. The weight variations with the addition of chitosan are 5.0; 10.0; 20.0; 60.0; 100.0 mg. Then, MHA were dried at 85 °C and calcined at 650 °C and were characterized explicitly by X-ray diffractometer (XRD), Fourier transforms infrared (FTIR), and nitrogen adsorption-desorption (BET, BJH). The result exhibited successful mesoporous hydroxyapatite with surface area ranging from 18,164 to 27,396 m2g-1, average pore diameter ranging from 3,10 to 3,89 nm, and pore volume 0,023-0,047 cm3/g. The best candidate was mesoporous hydroxyapatite with the addition of chitosan 10 mg (HAC-10) that has a distribution pore size, surface area, and pore volume which are 2,19-5,1 nm, 25,624 m2/g, and 0,038 cm3/g. The transmission electron microscopy (TEM) characterization results showed the obtained rod-like mesoporous HA nanocrystals and look-alike tubular pore formations and had a pore size around 4,1-20,31 nm. When the particle radius between TEM and PSA were compared, the PSA result was significantly overestimated due to the agglomeration of MHA.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | mesoporous, hydroxyapatite, chitosan, facile synthesis, characterization, mesopori, hidroksiapatit, kitosan, sintesis sederhana, karakterisasi |
| Subjects: | Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc. Q Science > QD Chemistry > QD75.2 Chemistry, Analytic Q Science > QD Chemistry > QD905.2 Crystals. T Technology > T Technology (General) > TA404 Materials--Biodegradation T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions. T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. T Technology > TP Chemical technology > TP248.65.C55 Chitosan--Biotechnology. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | HANAN HAKIM |
| Date Deposited: | 20 Aug 2021 11:28 |
| Last Modified: | 20 Aug 2021 12:46 |
| URI: | http://repository.its.ac.id/id/eprint/89105 |
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