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Jurnal Institusi
Improvement of Student Critical Thinking Skills with the Natural Product Mini Project Laboratory Learning
Indonesian Journal of Chemistry; Vol 16, No 3 (2016); 322-328
This research aims to investigate effect of learning using natural product mini project laboratory on students’ critical thinking skills. The research was conducted on sixth semester of 59 students of chemistry and chemistry education program from ...
Jurnal Institusi
Evaluation of Lagergren Kinetics Equation by Using Novel Kinetics Expression of Sorption of Zn2+ onto Horse Dung Humic Acid (HD-HA)
Indonesian Journal of Chemistry; Vol 16, No 3 (2016); 338-346
Extraction and purification of humic acid from dry horse dung powder (HD-HA) was performed successfully and the purified HD-HA was then applied as sorbent to adsorb Zn2+. Extraction and purification were performed based on procedure of Stevenson (199...
Jurnal Institusi
Photocatalytic and Photoelectrocatalytic Degradation of Methyl Orange Using Graphite/PbTiO3 Composite
Indonesian Journal of Chemistry; Vol 16, No 3 (2016); 347-352
Synthesis of graphite/PbTiO3 composite as a catalyst in photodegradation and photoelectrodegradation process of methyl orange have been conducted. The purposes of this research are to study the effect of radiation time, composition of composite, volt...
Jurnal Institusi
Synthesis of ZnO Nanoparticles by Precipitation Method with Their Antibacterial Effect
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 117-123
The aim of this study was to synthesize and characterize Zinc oxide nanoparticles (ZnO-NPs) prepared by precipitation method. Zinc nitrate and sodium hydroxide was used as starting materials with biopolymer pectin as capping agent. ZnO-NPs were synth...
Jurnal Institusi
Influences of Temperature on the Conversion of Ammonium Tungstate Pentahydrate to Tungsten Oxide Particles with Controllable Sizes, Crystallinities, and Physical Properties
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 124-129
The purpose of this study was to investigate influences of temperature on the conversion of ammonium tungstate pentahydrate (ATP) powder to tungsten trioxide (WO3) particles with controllable sizes, crystallinities, and physicochemical properties. In...
Jurnal Institusi
Functionalization of Fe3O4/SiO2 with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl4]-
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 130-137
Synthesis of Fe3O4/SiO2 modified with N-(2-aminoethyl)-3-aminopropyl group (Fe3O4/SiO2/ED) via coating method and its application for adsorption-desorption of anionic gold in aqueous solution have been conducted. The synthesized product was character...
Jurnal Institusi
Hydrothermal Transformation of Natural Zeolite from Ende-NTT and Its Application as Adsorbent of Cationic Dye
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 138-143
A synthetic zeolite was produced from natural zeolite from Ende-Nusa Tenggara Timur (NTT) by hydrothermal method. This study aims to produce synthetic zeolite from Ende natural zeolite to remove cation dye through the adsorption process. Temperature ...
Jurnal Institusi
Preparation of Citric Acid Crosslinked Chitosan/Poly(Vinyl Alcohol) Blend Membranes for Creatinine Transport
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 144-150
Preparation of membrane using crosslinking reaction between chitosan and citric acid showed that functional group modification increased the number of active carrier groups which lead to better transport capacity of the membrane. In addition, the sub...
Jurnal Institusi
New Prenylated Stilbenes and Antioxidant Activities of Cajanus cajan (L.) Millsp. (Pigeon pea)
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 151-155
New Prenylated stilbene derivatives, 3-hydroxy-4-prenyl-5-methoxy-stilbene acid (1) and 5,4'-dihydroxy-3-methoxy-2-prenyl-stilbene (2) had been isolated from methanol extract of Cajanus cajan (L.) Millsp. (Pigeon pea), a member of family fabacea...
Jurnal Institusi
The Phenolic Compound from Kalanchoe blossfeldiana (Crassulaceae) Leaf and Its Antiplasmodial Activity against Plasmodium falciparum 3D7
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 156-161
Various species of Kalanchoe plants have been widely used as raw materials in traditional medicines. This study was the continuation of the researches on secondary metabolites from Indonesia Kalanchoe plants, focused on Kalanchoe blossfeldiana. Fresh...
Jurnal Institusi
Chemical Composition, Phytochemical Screening and Antioxidant Activity of Acmella uliginosa (Sw.) Cass Leaves
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 162-174
Acmella uliginosa (Sw.) Cass is widely used in traditional medicine and used in the treatment of many diseases. Extraction of component in leaves of Acmella uliginosa used methanol, ethyl acetate and n-hexane solvent. The percentage yield of extract ...
Jurnal Institusi
Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H4[a-SiW12O40]/TiO2 Catalyst
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 175-180
Oxidation of cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[a-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst H4[a-SiW12O40]/TiO2 was synthesized and characterized using FTIR spectroscopy and X-Ray analysis. In t...
Jurnal Institusi
Utilization of Cellulose from Pineapple Leaf Fibers as Nanofiller in Polyvinyl Alcohol-Based Film
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 181-189
Cellulose from pineapple leaf fibers as one of the natural polymer which has biodegradable property in a nanometer’s scale, can be formed as a filler in composite of Poly(vinyl) Alcohol/PVA is expected to increase the physical, thermal, and barrier...
Jurnal Institusi
Quantification of Andrographolide Isolated from Andrographis paniculata Nees Obtained from Traditional Market in Yogyakarta Using Validated HPLC
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 190-197
This research was aimed to quantification of andrographolide isolated from A. paniculata Ness found in traditional market in Yogyakarta using validated HPLC to obtain high level content of andrographolide. The extraction of andrographolide from A. pa...
Jurnal Institusi
Synthesis and Characterization of Oligomer 4-Vinylpyridine as A Corrosion Inhibitor for Mild Steel in CO2 Saturated Brine Solution
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 198-207
In this work, the oligomer of 4-vinylpyridine designated as O(4-VP) was synthesized by hydrogen peroxide initiated chain growth polymerization and characterized in terms of molecular weight and structure by matrix assisted laser desorption ionization...
Jurnal Institusi
Calcium Oxide from Limestone as Solid Base Catalyst in Transesterification of Reutealis trisperma Oil
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 208-213
CaO catalysts were synthesized from limestone by thermal decomposition and coprecipitation methods. The CaO and MgO reference catalysts were also synthesized for comparison. The catalysts were characterized by X-ray diffractometer (XRD) and the analy...
Jurnal Institusi
Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 214-221
Zinc bis-(dipalmithyl dithiophosphate) (ZDTP16) is one product variant of zinc dialkyl dithiophosphate (ZDTP)-fatty acid based having function as corrosion inhibitor. By using 3% of effective dose for the application, its effectiveness of ZDTP16 corr...
Jurnal Institusi
Molecular Dynamics Simulations and Empirical Observations on Soy Lecithin Liposome Preparation
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 222-228
Soy lecithin is a phospholipid often used in liposome formulations. Determination of water and phospholipid composition is one of the problems in the liposome formulation. This study is using molecular dynamics simulation and empirical observation in...
Jurnal Institusi
Reduction of Aldehydes Using Sodium Borohydride under Ultrasonic Irradiation
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 229-232
A simple, energy efficient, and relatively quick synthetic procedure for the reduction of aldehydes under ultrasonic irradiation is reported. Satisfactorily isolated yields (71-96%) were achieved confirming that the preparation of alcohol by aldehyde...
Jurnal Institusi
Synthesis of Zeolite-X Supported On Glasswool for CO2 Capture Material: Variation of Immersion Time and NaOH Concentration at Glasswool Activation
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 1-7
Zeolite X supported on fiber material (glasswool) was successfully synthesized using a simple hydrothermal method. Variation of immersion time and NaOH concentration were used for glasswool activation. Activation process of glasswool has effects towa...
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