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Sintesis Serbuk Hidroksiapatit Menggunakan Metode Mechanochemical Siska Priscillia Aledya; Ahmad Fadli; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Hydroxyapatite (HAp) is a material that has the same structure and material composition with the main minerals of teeth and human bones so it can be used as bone and dental implants. The purpose of this study was to synthesis hydroxyapatite, determine the effect of variations in the ball sizes and the ratio of a mass of precursors to balls size of crystals and particles, and morphology of hydroxyapatite produced by the mechanochemical method. First, 0,5 gram Calcium Oxide (CaO), 0,6 gram ammonium dihydrogen phosphate (NH4H2PO4) and 10 ml distillate water with a mole ratio of Ca/P 1,67 were milled using Shaker Mill PPF UG. Two different ball sizes (3mm and 6mm) and three different PBRs (1:1,439; 1:2,878; and 1;4,318) were used in this methode. Precursor and balls were milled in milling speed 850 rpm for 6 hours with interval every 15 min paused for 5 min. The slurry dried in an oven with 120°C for 2 hours then sintered at 900°C for an hour. The synthesized powder was analyzed by XRD, PSA, and SEM confirmed the formation of HAp structure with nanocrystallite size, morphology in all variables. The crystallite size increased with increasing PBR. At PBR 1:2,878 and ball size 6 mm was obtained crystallite size about 24,78 nm with 95% crystallinity. The particle size decreased with increasing PBR. Morphology of hydroxyapatite was ununiform to granular with mol ratio Ca/P 1,81.Keywords: ball mill, hydroxyapatite, mechanochemical, powder to ball ratio
Sintesis Hidroksiapatit melalui Precipitated Calcium Carbonate (PCC) dari Cangkang Kerang Darah dengan Metode Hidrotermal Pada Variasi pH Dan Suhu Operasi Wahyu Syafrima; Zuchra Helwani; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Hydroxyapatite Ca10(PO4)6(OH)2 is a calcium phosphate compound which is a bioactive ceramic material with high bioafinitas. Hydroxyapatite (HAp) materials used as bone implants, adsorbents and catalysts. Synthesis of hydroxyapatite can be made by using material which is rich of CaCO3 like PCC blood calm shell with a composition of 95.5% CaCO3. In this research, PCC blood calm shell which has calcium source was synthesized to HAp by hydrothermal process. pH of the reaction (10, 11, 12) and reaction temperature (140oC, 160oC, 180oC) was be varied. The outcome of synthesis was characterized by using FTIR, XRD, SEM. The results of FTIR analysis, synthesis of HAp with hydrothermal method showed the formation of hydroxyapatite in the presence of peaks PO43- dan OH-. The highest peak is obtained at pH 10 at reaction temperature of 140oC, 160oC and 180oC. XRD diffraction results in hydroxyapatite get the highest crystallinity obtained at pH 10 at temperature of 180oC with a hexagonal crystal structure and produce a more pure hydroxyapatite. SEM results showed morphology with clots and irregular round shape.Keywords : PCC blood calm shell, pH, temperature, hydroxyapatite, hydrothermal method.
Sintesis Hidroksiapatit Melalui Precipitated Calcium Carbonate (PCC) Kulit Kerang Darah Dengan Metode Hidrotermal Jefry Soclin Sianipar; Yelmida Azis; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Hydroxyapatite Ca10(PO4)6(OH)2 is a calcium phosphate compound which is bioactive ceramic material with high bioafinitas and the principal inorganic constituent of bones and teeth. Hydroxyapatite (HAp) materials used as bone implants, adsorbents and catalysts. In this research synthesis of hydroxyapatite can be made by using material which is rich of CaCO3 like PCC blood calm shell with a composition of 95.5% CaCO3. PCC blood calm shell which has calcium source was synthesized to HAp by hydrothermal process with varied rasio Ca/P (1.61, 1.67, and 1.73) and reaction temperature (140oC, 160oC, 180oC, and 200°C). HAp synthesized result has been analyzed using X-ray Diffraction (XRD), scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The results of FTIR analysis, synthesis of HAp with hydrothermal method through precipitated calcium carbonat (PCC) showed the formation of hydroxyapatite in the presence of peaks PO43- dan OH-. The highest peak is obtained at ratio Ca/P 1.61 at reaction temperature of, 140°C, 160°C, 180°C, and 200°C. XRD diffraction results in hydroxyapatite get the highest purity obtained at ratio Ca/P of 1.61 at temperature of 180°C with a hexagonal crystal structure. The results of SEM-EDX analysis, show that the morphological form of agglomerates or clumping . The molar ratio of Ca/P of hydroxyapatite which is made from sea shells seashell waste through the PCC is 1,77.Keywords : PCC Blood Calm Shell, pH, Temperature, Hydroxyapatite, Hydrothermal Method.
Pengaruh Variasi Temperatur Dan Waktu Terhadap Rendemen Pirolisis Limbah Kulit Durian Menjadi Asap Cair Nurrassyidin Nurrassyidin; Idral Idral; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Manufacturing of   Liquid Smoke from durian’s peel waste biomass  that used for preservation by pyrolysis process  to produce more valuable and reliable product. Purpose of  this research  is  to find dependence of   yield  liquid smoke from pyrolysis durian’s  peel  waste  to  temperature  and  time.  The  temperature  is  250°C,  275°C, 300°C, 325°C and 350°C also the time is 90, 120 and 150 minutes that did with one set of pyrolysis equipment. From this research has been got the result of yield at each variabel, 250°C = 5.95%, 275°C = 10.57%, 300°C = 11.12%, 325°C = 11.22% dan 350°C =19.09% and 90 minutes = 14.31%, 120 minutes = 19.10% dan 150 minutes = 26.52%. so at the highest temperature and time will be get the highest yield. Keywords: Durian’s Peel, Liquid Smoke, Preservation, Pyrolysis
Efisiensi Penurunan Kadar Natrium (Na+) Dan Klorida (Cl-) Pada Air Laut Menggunakan Tanah Lempung Dengan Metode Penukar Ion Utami Khairunnisa; Shinta Elystia; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Research efficiency decreased levels of chloride ion in sea water by ion exchange method which utilitizes clay to do. The results of the initial analysis on the sea of chloride parameter indicates the concentration parameter exceeds the quality standards PERMENKES 416/MENKES/PER/IX/1990. The research uses an ion exchange column with a diameter of 2 inches and a height of 1,2 meters. Media used is sea water of Bengkalis and clay activated with KOH 2 M. Variation used is the flow rate and time of observation. The flow rate used are 140 ml/mnt, 160 ml/mnt, 180 ml/mnt and 200 ml/mnt and time of observation used are 1; 1,5; 2 hours. Concentration of chloride before research is 15.423 mg/L and after processing occurs at decreasing concentrations in each variation of chloride are 278 mg/L - 667 mg/L. This result shows that the ion exchange methode using activated clays are capable of removing of chloride concentration in sea water. Over all, the variation used in this research give effect to decreased of chloride in sea water. This is also evidenced in the removal efficiency of ion is 98,2 % - 95,7 %.Keyword : Flow rate and time of observation, Ion Exchange, Sea water, The activated clays.
Pengaruh Jenis Dan Suhu Pelarut Pada Preparasi Pelepah Sawit Sebagai Bahan Baku Wood Plastic Composite Dian Anggraini Purba; Zultiniar Zultiniar; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Palm frond biomass is potentially to be used as a filler for plastic-wood composite products known as Wood Plastic Composite (WPC). This study aims to determine the influence of solvent type and temperature on preparation of palm frond as raw material of WPC. The palm frond which has been reduced to powder is dried in open air for ± 24 hours. Further drying uses an oven at 1050C where the final water content of the powder is 5%. Furthermore, the material is scaled down again in size to obtain 60 mesh. Palm oil powder is extracted for 15 minutes using solvent and high temperature. The solvent variations used are NaOH and H2O2 with concentration of 1 N while the variation temperature of extraction step is 100oC, 120oC and 140oC. The results showed that the type of solvent has a relatively significant effect on cellulose content of frond is increasing cellulose level of 13.44% - 22.23%, while the temperature changes did not give significant effect to the increase of fronds cellulose levels. The best preparation results were obtained in the preparation using NaOH solvent at 140 ° C with a cellulose content of 57,47%.Keywords: moisture content, palm frond, preparation, wood plastic composite
Penentuan Model Isoterm Adsorpsi Ion Cu(II) Pada Karbon Aktif Tempurung Kelapa Khamaluddin Aditya; Yusnimar Yusnimar; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Copper metal (Cu2+) pollution gives bad impact for society life. One effort to reduce the content of copper metal by using adsorption process. This research used physical activationmethod with temperature at 700oC for 3 hours. This research purpose is to determine the absorptive capacity of the coconut shell activated carbon adsorption and the appropriateadsorption isotherm models. A total of 1 g of coconut shell activated carbon mixed with a solution of CuSO4 with a volume of 100 ml at various concentrations (10, 15, 20, 25 and 30ppm). Then the solution was analyzed by AAS to determine the concentration of Cu ion remaining. The Results showed that the ion adsorption of Cu (II) by a coconut shell activatedcarbon reached equilibrium after a contact time of 90 minutes, and adsorption occured by following the Freudlich adsorption models with correlation coefficient (R2) was 0.9848 and the maximum value of adsorption was 99,96 % mg Cu (II) / g adsorbent.Keywords : Activated Carbon, Adsorption, Ion Cu(II), Coconut Shell and Physics Activation
Pengaruh Aktivasi Dalam Penurunan Kandungan (Pb) Dalam Air Laut Menggunakan Tanah Lempung Sebagai Penukar Ion Hafiz Hafiz; Shinta Elystia; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bengkalis has a characteristic red soil water that people use other alternatives such as the use of rain water as drinking water, seawater however Bengkalis potentially be processed into clean water. One alternative treatment of sea water into fresh water is to use ion exchange method. This study uses an ion exchange method which utilizes clay Kulim. As well as ion exchange column used 2 inch diameter and a height of 1.2 meters. The medium used is activated clay and sea water Bengkalis Island. Variation used is acid solution HCl, HNO3, and H2SO4 with each solution concentration 2M and clay without activation as a control. Used detention time is 180 minutes, while the clay size -10+15 mesh. From the results, the highest efficiency in H2SO4 activated clay with an efficiency of 95.2% Pb concentration of 1.201 mg/L to 0.058 mg/L. When in comparison with clean water quality standard Pb concentration in sea water not meet quality standards. Then calculated the value of the clay CEC and CEC highest value obtained is 124.16 meq/g on activated clay H2SO4 These results indicate that the ion exchange method using activated clays are capable of removing Pb and Ca concentrations in seawater.Keywords: Acid Solution, Ion Exchange, Kulim Activated Clay Soil, Sea Water of Bengkalis
Sintesa Precipitated Calcium Carbonate (PCC) Dari Cangkang Kerang Darah ( Anadara Granosa) Dengan Variasi Suhu Kalsinasi Dan Variasi Rasio CaO/HNO3 Paul Destin Purba; Amun Amri; Zultiniar Zultiniar; Yelmida Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Precipitated Calcium Carbonate (PCC) is a calcium based chemical product that recently has widely utilized in application. The purpose of this research is to obtain PCC at once as the waste problem solver. This research using carbonation method with tested variable were the calcinations temperature and ratio of calcium oxide by nitric acid. The crushed sample were calcined according to the temperature variations (700oC, 800oC, and 900oC). Furthermore, the formed calcium oxide was slacked into the nitric acid according to several calcium oxide by nitric acid ratio (14:300, 17:300, and 20:300 gr/ml). The formed nitric calcium then was added by ammonia to pH 12 to start the synthesis calcium hydroxide. Next subsequent was carbonation, in case flowing calcium hydroxide by carbon dioxide to form white precipitate (PCC). Based on the analysis, the best result of PCC obtained at calcinations temperature of 900oC with the ratio of 14 gr:300 ml that gained 84,88%. The X-Ray Diffraction (XRD) showed that the type of crystals formed were vaterit. The Scanning Electron Microscopy (SEM) showed that the shape of crystals were round (sphere-like) with a relatively uniform size.Keywords: Calcination, carbonation, cockle shell, precipitated calcium carbonate.
Sintesis Hidroksiapatit Dari Precipitated Calcium Carbonate (PCC) Kulit Telur Ayam Ras Melalui Metode Hidrotermal Fadly Sitohang; Yelmida Azis; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Abstract

Hydroxyapatite Ca10(PO4)6(OH)2 is a calcium phosphate compound which is bioactive ceramic material with high bioafinitas and the principal inorganic constituent of bones and teeth. Hydroxyapatite (HAp) materials use as bone implants, adsorbents and catalysts. In this research synthesis of hydroxyapatite can be made by using material which is rich of CaCO3 like PCC chicken’s egg shell with a composition of 99,45% CaCO3. PCC chicken’s egg shell which has calcium source synthesized to HAp by hydrothermal process with variated times of reaction (14 hours; 16 hours; 18 hours) and reaction temperature (130oC, 150oC, 170oC). HAp synthesized results have been analyzed by using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The results of FTIR analysis showed the formation of hydroxyapatite in the presence of peaks PO43- dan OH-. The highest peak obtained at reaction temperature 130oC with reaction time 14 hours and 16 hours. XRD diffraction results in hydroxyapatite got the highest purity obtained at temperature of 130oC at reaction time 14 hours with a hexagonal crystal structures. The results of SEM-EDX analysis showed that the morphology form of HAp was agglomerates or clumping . The molar ratio of Ca / P of hydroxyapatite which is made from chicken’s egg shell through the PCC was 1,69..Keywords : PCC Chicken’s Eggs Shell, pH, Temperature, Hydroxyapatite, Hydrothermal Method.
Co-Authors Affananda Taufik Affandi Affandi Ahmad Fadli Aldi Okta Priyatna Amun Amri Ardago Lengga Muda Siregar Ari Wibowo Harahap Bahruddin Bona Tua Deska Deska Dewi Indah Pratiwi Dhini Octavianty Dian Anggraini Purba Dini Aulia Sari Ermal Dovy Reyandi Ekky Wahyudi Fachry Abda El Rahman Fadly Sitohang Hafiz Hafiz Idral Idral Indah Fitriani Jefry Soclin Sianipar Juniwarnis Juniwarnis Khamaluddin Aditya Khodijah Khodijah Komalasari Komalasari Lucy Rahmawati M. Fauzan Akbar Mohd. Rafiq Muhammad Yusro Annur Nurrassyidin Nurrassyidin Nuruzzaman Shiqhi Paul Destin Purba Putri Fatihah Zuhrah Rathesa Najela Regina Giantika Resty Maiyola Riris Verawati Roselyn Indah Kurniati Rozanna Sri Irianty Shinta Elystia Siska Priscillia Aledya Siti Sakinah Sri Hidayanti Sry Utami Pardede Sudung Sugiarto Siallagan Syafrima Wahyu Syafruddin Syafruddin Utami Khairunnisa Widiya Widiya Widya Pangestu Yelmida Azis Yusnimar Sahan Zuchra Helwani