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Jurnal Institusi
Synthesis of Silver-Chitosan Nanocomposites Colloidal by Glucose as Reducing Agent
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 29-35
Silver-chitosan nanocomposites colloidal was successfully performed by chemical reduction method at room temperature using glucose as reducing agent, sodium hydroxide (NaOH) as accelerator reagent, silver nitrate (AgNO3) as metal precursor and chitos...
Jurnal Institusi
Synthesis and Characterization of Titania-Rice Husk Silica Composites as Photocatalyst
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 36-42
This article describes the synthesis of titania-silica composites by a sol-gel method using a mixture of silica of rice husk and titanium butoxide sols. Microstructures were examined at calcination temperature in the range of 500 to 700 °C, with tem...
Jurnal Institusi
Synthesis of Mn(II)-Loaded TixSi1-xO4 Composite Acting as a Visible-Light Driven Photocatalyst
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 43-49
The synthesis and characterization of Mn-loaded TixSi1-xO4 (x= 0.4-0.8) composites and a preliminary study of an activity testing their ability to work as photocatalysts for the degradation of methylene blue (MB) have been studied. Synthesis was cond...
Jurnal Institusi
Effect of Various Solvent on the Synthesis of NiO Nanopowders by Simple Sol-Gel Methods and Its Characterization
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 50-55
Synthesis of nickel oxide (NiO) with various solvents by simple sol-gel process has been done. NiO nanopowders were obtained by using nickel nitrate hexahydrate and sodium hydroxide 5 M were used as precursor and agent precipitator, respectively. The...
Jurnal Institusi
Condensation of Indole with Isatin over AlCl3/Mesoporous Aluminosilicate
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 56-63
Aluminium chloride immobilized on mesoporous aluminosilicate was investigated as catalysts in the condensation of isatin with indole. AlCl3/mesoporous aluminosilicate (AlCl3/AM) catalysts were prepared by impregnation of 1, 5, 10 and 15 wt% AlCl3 on ...
Jurnal Institusi
Conversion of Cyclohexanone to Adipic Acid Catalyzed by Heteropoly Compounds
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 64-69
Conversion of cyclohexanone to adipic acid using hydrogen peroxide as green oxidant catalyzed by heteropoly compounds i.e. H5[a-BW12O40] H4[a-SiW12O40] and H4[a-PVMo11O40] has been carried out systematically in one pot synthesis under mild condition....
Jurnal Institusi
Synthesis Methyl Nitrophenyl Acrylate and Cytotoxic Activity Test against P388 Leukemia Cells
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 70-76
Synthesis of methyl nitrophenyl acrylate via modification of methyl trans-cinnamate had been done to improve its biological activity. The reaction of methyl trans-cinnamate with nitrating agent gave methyl 3-(2-nitrophenyl)acrylate and methyl 3-(4-ni...
Jurnal Institusi
Transformation of Eugenol and Safrole into Hydroxychavicol
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 77-85
Hydroxychavicol is found in betel leaf at low concentration and is reported to have antibacterial, anti-inflammatory, antioxidant, anticancer, and antimutagenic activities. This study aimed to synthesize hydroxychavicol from eugenol and safrole. Isol...
Jurnal Institusi
QSAR Analysis of Benzothiazole Derivatives of Antimalarial Compounds Based On AM1 Semi-Empirical Method
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 86-92
Quantitative Structure and Activity Relationship (QSAR) analysis of 13 benzothiazoles derivatives compound as antimalarial compounds have been performed using electronic descriptor of the atomic net charges (q), dipole moment (μ), ELUMO, EHOMO and p...
Jurnal Institusi
Theoretical Study on Structure and Electronic Properties of 4H-Cyclopenta[2,1-b,3;4-b’]dithiopene S-oxide and Its CCl2 and CF2 Bridged Derivatives
Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 93-100
Quantum chemical calculations using semi-empirical, ab initio, density functional theory (DFT) and Møller plesset (MP2) methods were performed on 4H-Cyclopenta[2,1-b,3;4-b’]dithiopene S-oxide derivatives (i.e. bridged dithiophene S-oxides, BTOs). ...
Jurnal Institusi
Photocatalytic Decolorization Study of Methyl Orange by TiO2–Chitosan Nanocomposites
Indonesian Journal of Chemistry; Vol 14, No 3 (2014); 209-218
The photocatalytic decolorization of methyl orange (MO) by TiO2-chitosan nanocomposite has been studied. This study was started by synthesizing TiO2-chitosan nanocomposites using sol-gel method with various concentrations of Titanium(IV) isopropoxide...
Jurnal Institusi
Simulation of Pollutant Gas Dispersion on Case Study of Lontar 3 Coal Fired Power Plant in Addition into 1 x 660 MW Capacity in Kemiri, Tangerang District, Banten Province
Indonesian Journal of Chemistry; Vol 14, No 3 (2014); 219-225
Air quality simulation has been performed for additional capacity of Banten 1 x 600 MW Coal Fired Power Plant toward air quality degradation in its surrounding environment. The simulation was based on pollutant gas dispersion calculated using Gaussia...
Jurnal Institusi
Adsorption Isotherm Studies on Acid Orange-10 Dye Removal using Cerium Dioxide Nanoparticles
Indonesian Journal of Chemistry; Vol 14, No 3 (2014); 226-232
The adsorption capacity of AO-10 from aqueous solution onto CeO2-NPs was investigated under various reaction parameters. Batch mode experiments were conducted to assess the potential of the CeO2-NPs as adsorbent for the removal of AO-10 dye from aque...
Jurnal Institusi
Production of Reducing Sugar from Cassava Solid Waste by Simultaneous Ultrasonication and Acid Hydrolysis
Indonesian Journal of Chemistry; Vol 14, No 3 (2014); 233-238
In this study, acid hydrolysis of cassava solid waste under ultrasound irradiation for reducing sugar production was studied. A series of experiments was carried out under a 40 kHz ultrasound irradiation, with the main purpose to examine the effect o...
Jurnal Institusi
Pemodelan topik pada dokumen paten terkait pupuk di Indonesia berbasis Latent Dirichlet Allocation
Berkala Ilmu Perpustakaan dan Informasi; Vol 17 No 2 (2021): December; 168-180
Introduction. Fertilizer is one of the most important production factors in the world of agriculture. It is crucial to increase the capacity of technology related to fertilizers. Analysis of patent documents can be one way to analyze technological de...
Jurnal Institusi
Analisis karya tulis ilmiah Pusat Penelitian Geoteknologi LIPI tahun 2010-2018
Berkala Ilmu Perpustakaan dan Informasi; Vol 16 No 1 (2020): June; 32-43
Preliminary. Research products in the form of scientific papers (KTI) at the Research Center for Geotechnology-LIPI continue to grow in quality and quantity, so it is necessary to analyze and study the scientific works to reveal the extent to which K...
Jurnal Institusi
Theoretical Analysis of Interaction Energy in Alginate-Capped Gold Nanoparticles Colloidal System
Indonesian Journal of Chemistry; Vol 14, No 3 (2014); 239-245
Stability of Au/alginate nanocomposite was theoretically evaluated by computing various interactions energy which contributes in the system, including attraction and repulsion interaction. The results revealed that both polymer and electrostatic char...
Jurnal Institusi
Pilihan rasional alumni ilmu perpustakaan pada pekerjaan non-pustakawan
Berkala Ilmu Perpustakaan dan Informasi; Vol 18 No 1 (2022): June; 59-72
Introduction. The establishment of Library Science Schools is expected to prepare professionals in library fields. In fact, there are many graduates who choose non-librarian jobs, therefore, it is necessary to examine their rational choices of the jo...
Jurnal Institusi
Tinjauan literatur sistematis digitalisasi koleksi antikuariat di perpustakaan khusus
Berkala Ilmu Perpustakaan dan Informasi; Vol 18 No 1 (2022): June; 128-143
Introduction. From a rare collection preservation perspective, antiquarian collections are considered fragile and prone in terms of biological, chemical and physical damage. This causes antiquarian collections require special handling to preserve.
Da...
Jurnal Institusi
Dinamika pendidikan vokasi pembelajaran praktikum konservasi arsip di masa pandemi
Berkala Ilmu Perpustakaan dan Informasi; Vol 18 No 1 (2022): June; 1-15
Introduction. The COVID-19 pandemic has forced face-to-face learning activities to change into distance learning. This paper discusses the impact of the pandemic on the learning process in the hands-on archives conservation practicum at the Archives ...