Chemistry Indonesian Journal of Chemical Research
Indo. J. Chem. Res. is a journal that regularly publishes primary articles covering all branches of chemistry and its sub-disciplines. Published articles consist of complete research, short communication, and review articles. The scope of published articles is not limited to inorganic chemistry, physical chemistry, organic chemistry, analytical chemistry, and biochemistry. Editors can invite articles review of authors that includes the latest developments in the field of interest of certain chemicals. A contribution is open to researchers from all countries.
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314 Documents
<![CDATA[The Capability Test Of Rice Husk (Oryza sativa L) As Active Carbon For Phenol Adsorption ]]>
<![CDATA[Tanasale, Matheis F.J.D.P.]]>;
<![CDATA[Latupeirissa, Jolantje]]>;
<![CDATA[Tuhalauruw, Eltha]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 2 No 2 (2015): Edisi Bulan Januari (Edition For January) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.2-mat
<![CDATA[The utilization study of active carbon from rice husk as adsorbent has been done. Active carbon is gained through carbonization process where rice husk put into furnace on temperature 300 oC. for 1 hour, colded, and sieved by sieve 100 mesh. The next it is activated by KOH solution with a concentration of 50% for 5 hours. The characterization used X-ray diffraction (XRD) for both carbons before and after activation. And determinated anidity weigh, calsinated in furnace with 400 oC. and streamed through N2 gas for 2 hours. Acidity weight of 6.4873 x 10-2 and 2.5467 x 10-2 mol/g, respectively. Determination of phenol adsorption was the UV-Vis spectrophotometry. Adsorption phenol from active carbon was followed the Freundlich isotherm with maximum capacity 5.6964 x 10-2 mg/g and n value is 0.2586 mg/g. The experimental data fitted well to the pseudo second-order kinetic model, which regretion value is 99.9 % and rate constant reaction (k) value is 0.74 g mg-1 menit-1 Phenol adsorption from active carbon rice husk the best is consentration 100 ppm with value 99.56 %.]]>
<![CDATA[Intercalation Of Clay By Surfactant And Its Application As Adsorbent Of Lead Ion ]]>
<![CDATA[Sekewael, Serly J.]]>;
<![CDATA[Tehubijuluw, Hellna]]>;
<![CDATA[Lefmanut, Isabella C.]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-ser
<![CDATA[Research on natural clay intercalation with a surfactant has been done. The surfactant used is a quaternary ammonium salt type is cetil trimethyl ammonium bromide (CTAB). Intercalation process is carried out by stirring a suspension of clay and quaternary ammonium salt for 24 hours. After the intercalation process, palmitic acid are added, then the intercalated clay is used as an adsorbent ion Pb2+ distance between layers of clay after intercalated can be analyzed using X-ray diffraction. The distance between the layers increases from 15.99 to 19.45Ã…. Intercalated surfactant used to adsorb metals Pb2+ ions in solution with a variety of conditions such as contact time and concentration. The results of the analysis indicated using AAS then used to determine the adsorption capacity based on the optimum contact time optimum concentration and absorption. Adsorption capacity is equal to 8.092 mg/g.]]>
<![CDATA[Photodegradation of Remazol Yellow Using A-Type Zeolite/TiO2 ]]>
<![CDATA[Tumbel, Elsa D.]]>;
<![CDATA[Wuntu, Audy D.]]>;
<![CDATA[Abidjulu, Jemmy]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-els
<![CDATA[The research aimed to study photodegradation of remazol yellow (RY) using TiO2-impregnated A-type zeolite (zeolite-A/TiO2) has been conducted. The materials having zeolite/TiO2 ratio of 1:0.2, 1:0.4, 1:0.6, 1:0.8, 1:1.0, 1:1.2, dan 1:1.4 g/g were used to degrade remazol yellow (RY) under ultraviolet irradiation for 3 hours and percentages of RY degraded were determined using spectrophotometer at 414 nm. Those with zeolite/TiO2 ratio of 1:0.2, 1:0.8, and 1:1.2 were used to study photodegradation kinetics at time range up to 3 hours. The results showed that the highest amount of RY degraded (82.17%) was attained by the use of material with zeolite/TiO2 ratio of 1:0.2. This material generated the highest value of rate constant (k=0.074 min-1), followed by those of 1:1.2 (0.045 min-1) and 1:0.8 (0.025 min-1).]]>
<![CDATA[Application of TiO2 Nanotube As Photoelectrode For Corrosion Prevention Of Stainless Steel In pH Variation of NaCl ]]>
<![CDATA[Misriyani, Misriyani]]>;
<![CDATA[Wahab, Abdul Wahid]]>;
<![CDATA[Taba, Paulina]]>;
<![CDATA[Gunlazuardi, Jarnuzi]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-mis
<![CDATA[The research amis to synthesize TiO2 nanotube photoelectrode (TiO2-NT) by anodizing method. The photoelectrodes applied in photoelectrochemical system to prevent the corrosion of steel. Anodizing method carried out by preparing an electrochemical system consisting of a titanium plate as anode and Pt wire as cathode in electrolyte containing glycerol, ammonium fluoride and water. Voltage applied from the DC current source and followed by thermal treatment at a temperature of 500oC. The photoelectrode further characterized by using X-Ray Diffraction and Surface Area Analyzer. The result of anti-corrosion test of stainless steel 304 by TiO2-NT showed that photopotential value of steel shifted to the more negative value in UV light. The significant potential shift occurs at pH 8 and the corrosion rate of stainless steel 304 couple with TiO2-NT decrease reaches 1.7 times. It concluded that the photoelectrodes can be used to reduce the corrosion rate of stainless steel 304 by utilizing sollar energy as a source of UV light.]]>
<![CDATA[Synthesis and Characterization of The MCM-48 and Modified NH2 ]]>
<![CDATA[Sari, Andi Y.P.]]>;
<![CDATA[Taba, Paulina]]>;
<![CDATA[Budi, Prastawa]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-and
<![CDATA[This research aims to synthesize and characterize MCM-48 modified with the group-NH2. Synthesis of MCM-48 and its modification by NH2 conducted by Ryoo methods where is the salt of Ludox HS40 solution mixed with NaOH solution then heated, followed by making mixture of CTAB and Triton X-100. The resulting gel mixture is heated at temperature of 100 °C for 24 hours. The reaction mixture added 30% acetic acid until pH 10. Then the mixture was heated at 100 °C for 24 hours then cooled at room temperature. MCM-48 mesoporous silica that has formed was filtered, washed with distilled water and dried at 120 °C. MCM-48 mesoporous silica characterized using XRD and FTIR. Modification of MCM-48-NH2 was done by adding 3-APTES into mesoporous silica. XRD analysis results showed that the characteristic peaks at 2 theta 2.4o have Miller indices 211and several peaks with low intensity. These peaks are typical peak for MCM-48. By FTIR showed the specific areas observed for organic molecules (surfactant) in MCM-48 synthesized; CH span (2800-3100 cm-1) and CH bending (1400 to 1500 cm-1). C-H bending vibration was observed in 1645; 1512 and 1481 cm-1. The success of modified MCM-48-NH2 was shown by the appearance of two absorption bands at wave numbers 3368 and 3424 cm-1 which indicate the presence of a primary amine or an amino group (-NH2) in the mesoporous channel]]>
<![CDATA[Preparation and Characterization Ni-Mo/Montmorillonite As A Catalyst In Cracking Process ]]>
<![CDATA[Sopiarini, Putri]]>;
<![CDATA[Firdaus, Firdaus]]>;
<![CDATA[Taba, Paulina]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-put
<![CDATA[This research is aims to prepare and characterization of montmorillonite intercalated Ni-Mo as a catalyst in the cracking process. Preparation is do by extracting monmorillonite of bentonite by decantation method. Monmorillonite synthesized with NaCl to obtain Na-monmorillonite. Ni-Mo/monmorillonite obtained by dissolving ammonium hepta molybdate (NH4)6Mo7O24.4H2O) with distilled water and refluxed with Na-monmorillonite for 6 hours and dried at a temperature of 120oC. Furthermore, nickel nitrate hexahydrate (Ni(NO3)2.6H2O) is dissolved in distilled water and refluxed with Mo-monmorillonite for 6 hours and dried at a temperature of 120oC. Ni-Mo/monmorillonite obtained is then calcined at a temperature of 600oC for 4 hours to activate and eliminate the remnants of organic materials. Characterization of Ni-Mo/monmorillonite do by XRD, XRF and SEM. Characterization by XRD showing the change in the content of monmorillonite, Na-monmorillonite, and Ni-Mo/monmorillonite. Characterization by XRF confirms the success of the creators do with increasing metal content of Ni and Mo in monmorillonite replace the position of the metal Na. Characterization by SEM showed highly significant differences in morphology of montmorillonite, Na-monmorillonite and Ni-Mo-monmorillonite]]>
<![CDATA[Quality Analysis Of Honey Mallawa Parameters Based On Physical Chemistry ]]>
<![CDATA[Sukmawati, Sukmawati]]>;
<![CDATA[Noor, Alfian]]>;
<![CDATA[Firdaus, Firdaus]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-suk
<![CDATA[Analysis of chemical physics parameters on Mallawa honey has been done as density, viscosity, HMF, reducing sugars, sucrose and enzyme diastase. The results obtained showed that the average weight of honey Mallawa is 1.373 g / mL, the viscosity of 10.9651 P, HMF amounted to 49.120 mg / Kg, reducing sugar amounted to 70.752% w/w, sucrose at 3:25 w/w and enzymes diastase of 3.805 DN, This is according with ISO and IHC (International Honey Commition) that category Honey Mallawa still good enough for consumption]]>
<![CDATA[The Degradation of Antracene Compound Using Bacteria Isolated From Paotere Port Waterways ]]>
<![CDATA[Mirnawati, Mirnawati]]>;
<![CDATA[La Nafie, Nursiah]]>;
<![CDATA[Dali, Seniwati]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 1 (2015): Edisi Bulan Juli (Edition For July) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2015.3-mir
<![CDATA[The objectives of this study are (1) Determine the content of antrasena compound in the waste oil at the waterway of Paotere port (2) Determine the characteristics of antrasena degradation bacteria and (3) Determine the percentage of antrasena degradation. In this research an analysis of antrasena compound was conducted with sea water that had been polluted with oil. The next steps were to isolate and characterize the degrading bacteria of antrasena and to analyze the results of antrasena degradation. The results showed that (1) Concentration of the antrasena compound in the waterway of paotere port is 4,8x10-10 ppm. (2) The bacteria can degraded of the antracene is Bacillus cereus (3) There was evidence that Bacillus cereus was able to degrade antracenr compound, the highest degradation percentage is 98,11%, it was achieved on 12 day of incubation]]>
<![CDATA[Sintesis Nanopartikel Fe Menggunakan Bioreduktor Ekstrak Fitoplankton Spirulina platensis ]]>
<![CDATA[Nurillah, Isti]]>;
<![CDATA[Raya, Indah]]>;
<![CDATA[Maming, Maming]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 2 (2016): Edisi Bulan Januari (Edition For January) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2016.3-ist
<![CDATA[This study aims to synthesize Fe nanoparticles by bioreduction using the phytoplankton extract of S. platensis that acts as a reducing agent. Synthesis process is done by adding extracts of S. platensis to a solution of 1 mM FeCl3. The formed nanoparticles characterized by UV-Vis spectrophotometer, Fourier Transform Infra Red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Energy Disperse X-Ray Spectroscopy (EDX/EDS), X-Ray Diffraction (XRD) and X-Ray Flourosence (XRF). The results showed that the solution of Fe3+ ions can be reduced by phytoplankton extract of S. platensis Fe nanoparticles formed. The average size of the particles based on the Debye-Scherrer equation was 68.10 nm. While the morphology of Fe nanoparticles was spherical shape.]]>
<![CDATA[Produksi Oligomer Kitosan dari Limbah Udang Windu (Panaeus monodon) Menggunakan Enzim Kitosanase dari Isolat Bakteri Klebsiella sp. ]]>
<![CDATA[Sarni, Sarni]]>;
<![CDATA[Natsir, Hasnah]]>;
<![CDATA[Dali, Seniwati]]>
<![CDATA[ Indonesian Journal of Chemical Research Vol 3 No 2 (2016): Edisi Bulan Januari (Edition For January) ]]>
Publisher : <![CDATA[Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura ]]>
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DOI: 10.30598/ijcr.2016.3-sar
<![CDATA[Chitosan is a biopolymer that is the main content of D-glucosamine and several parts of N-acetyl-D-glucosamine bound to β- (1-4) glucoside. Chitosan receive special attention as functional biopolymers for applications in various fields. Chitosan is more effectively absorbed into the human body when it gets converted into chitosan oligomer form. Chitosan oligomer is a mixture of oligomers of D-glucosamine are formed through a process of severing ties depolymerization of chitosan with β-glycosidic. This study aims to produce chitosan oligomer of waste tiger shrimp (Penaeus monodon) using enzyme kitosanase of bacteria Klebsiella sp. Chitosan oligomer produced by using the enzyme chitosanase at a temperature of 40 °C and pH 8 with the activity of 0.309 U/mL (5,235 U/mg) obtained in the form of a mixture of monomer to octamer, which soluble in acetic acid 0.25% to 0.5%, having intrinsic viscosity decreases with increasing time of incubation is 0.195 (1 hour incubation); 0.9 (incubation 2 hours) and 0.7 (incubation 3 hours) with molecular weight range of 4103.12 g/mol (incubation 1 hour) ; 1483.48 g/mol (incubation 2 hours) and 1065.79 g/mol (incubation 3 hours).]]>
