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Abstract
Gypsum waste has the potential to be made into hydroxyapatite (HAp). In this study synthesis of HAp with hydrothermal method using microwave at heating temperature of 100 ºC was carried out. The purpose of this study was to obtain hydroxyapatite bioceramic compounds from gypsum waste, determine the ratio of Ca/P in obtained HAp and characterizing the obtained HAp. HAp characterization has been carried out using FTIR and XRD. The result showed that 2,5 grams of gypsum powder produced HAp powder yield of 65,61% to 84,43%. Calcium levels are 0,02440 % to 0,03466 %, while phosphate levels are 0,038 % to 0,055 %. The Ca/P ratio are 0,28 to 0,39. FTIR HAp characterization results indicate the presence of phosphate groups (PO43-), hydroxyl groups (OH-), and Ca-O groups. But based on XRD analysis, The HAp obtained is not a standard HAp.
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References
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References
Alexoupaulou, M. et al., 2015. Preparation, characterization and in vitro assessment of ibuprofen loaded calcium phosphate/gypsum bone cements. Crystal Research Technology, pp. 1-8.
Amrina, Q. H., 2008. Sintesa Hidrokiapatit dengan Memanfaatkan Limbah Cangkang Telur ; karakterisasi Difraksi Sinar X dan Scanning Electron Microscopy (SEM). Skripsi. Institut Pertanian Bogor.
Badan Standard Nasional Indonesia, 2005. SNI 06-6989.31-2005. Air dan Air Limbah – Bagian 31; Uji Kadar Fosfat dengan Spektrofotometer secara Asam Askorbat.
Balgies, Dewi., S. U. & Dahlan, K., 2011. Sintesis dan Karakterisasi Hidroksiapatit menggunakan Analisis X-Ray Diffraction. Prosiding Seminar Nasional Hamburan Neutron dan Sinar -X, pp. 10-13.
Doolitle, P., 2014. Ascorbic Acid Method for Phosphorus Determination, Madison: University of Wisconsin.
Fitri, D. K., 2014. Sintesis Hidroksiapatit dari Cangkang Keong Sawah (bellanya javanica) dengan Metode Basah dan Modifikasi Pori dengan Kitosan. Skripsi, pp. 1-47.
Hench, L. L. & Ethridge, C. E., 1975. Biomaterials-The Interfacial Problem. In: Advances in Biomedical Engineering. s.l.:Cambridge: Academic press, pp. pp 35-150..
Kalita, S. J. & Verma, S., 2010. Nanocrystalline hydroxyapatite bioceramic using microwave radiation; Synthesis and Characterization.. Elsevier: Material Science and Engineering C, Volume 30, pp. 295-303.
Prasetyanti, F., 2008. Pemanfaatan Cangkang Kulit Telur Ayam untuk Sintesis Hidroksiapatit dengan Reaksi Kering. Skripsi.
Purwasasmita, B. S. & Gultom, R. S., 2008. Sintesis dan Krakterisasi Serbuk Hidroksiapatit Skala Sub-Mikron menggunakan Metode Presipitasi. Jurnal Bionatura, 10(2), pp. 155-167.
Sedyono, J. & Tontowi, A. E., 2008. Proses Sintesis dan Karakterisasi FTIR Hidroksiapatit dari Gipsum Alam Kulon Progo. MEDIA MESIN, 9(1), pp. 6-12.
Steel, R. G. & Toorie, J. H., 1995. Prinsip dan Prosedur Statistika: Suatu Pendekatan Biometrik. Jakarta: Gramedia Pustaka.
Tua, B., Amri, A. & Zultiniar, 2016. Sintesis dan Karakterisasi Hidroksiapatit dari Cangkang Kerang Darah dengan Proses Hidrothermal VariasiSuhu dan pH. Jom FTEKNIK, 3(2), pp. 1-5.
Wadu, I., Soetjipto, H. & Cahyanti, M. N., 2016. Sintesa dan Karakterisasi BiokeramikHidroksiapatit (HAp) dari Kerabang Telur Ayam sebagai Agen Anti Karies Gigi (Lactobacillus acidophilus). pp. 1-13.