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INDONESIA
Indonesian Journal of Chemistry
Published by Universitas Gadjah Mada
ISSN : 14119420     EISSN : 24601578     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Indonesian Journal of Chemistry is an International, peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry including applied chemistry. The journal is accredited by The Ministry of Research, Technology and Higher Education (RISTEKDIKTI) No : 21/E/KPT/2018 (in First Rank) and indexed in Scopus since 2012. Since 2018 (Volume 18), Indonesian Journal of Chemistry publish four issues (numbers) annually (February, May, August and November).
Arjuna Subject : -
Articles 15 Documents
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Search results for , issue "Vol 11, No 2 (2011)" : 15 Documents clear
Mg/Al HYDROTALCITE-LIKE SYNTHESIZED FROM BRINE WATER FOR EOSIN YELLOW REMOVAL Eddy Heraldy; Triyono Triyono; Karna Wijaya; Sri Juari Santosa
Indonesian Journal of Chemistry Vol 11, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.468 KB) | DOI: 10.22146/ijc.21397

Abstract

Attempts to synthesis of Mg/Al HTlc using magnesium from several raw material resources are widely investigated. One of raw material would purpose as source of magnesium to synthesis of Mg/Al HTlc is brine water which is well known as the desalination process wastewater. Mg/Al HTlc are widely investigated for their potential applications in research and industrial processes as adsorbents, anionic exchange, catalysts and /or catalyst precursors for the preparation of inorganic materials and pharmaceutical industry excipients. As adsorbents, Mg/Al HTlc are receiving greater interests in the environmental community due to their high adsorption capacity. However, there is no literature available on the synthesis of Mg/Al HTlc from brine water except from artificial seawater. The objective of this research is to synthesis of Mg/Al HTlc from brine water and its ability tested for eosin yellow (EY) removal. Characterization of the Mg/Al HTlc synthesized was confirmed through X-ray Diffraction and FT-IR Spectroscopy. The effect of various experimental parameters was investigated using a batch adsorption technique. In this manner, the adsorption isotherms, adsorption kinetics, and pH effects upon EY adsorption on Mg/Al HTlc were examined. The result showed that EY data fit well with the pseudo-second order kinetic model. The isothermal data could be well described by the Freundlich equation. The adsorption capacity was 2.41 × 10-1 mol g-1, and adsorption energy of EY was 24.89 kJ mol-1.
HYDROTHERMAL SYNTHESIS OF ROD AND CHRYSANTHEMUM LIKE NANOSTRUCTURED ZnO Anissa A. Putri; Tutik D. Wahyuningsih; Indriana Kartini
Indonesian Journal of Chemistry Vol 11, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.418 KB) | DOI: 10.22146/ijc.21399

Abstract

Rod and chrysanthemum-like nanostructured ZnO thin film have been prepared hydrothermally in NaOH and NH3 solution utilizing zinc nitrate hexahydrate as the precursor. ZnO thin films were grown on ITO glass substrate with the seed layer of zinc oxide. Perpendicularly aligned arrays of corrugated ZnO nanorods were grown in NaOH solution, while the chrysanthemum like structure was obtained in ammonia solution. X-Ray diffraction patterns confirmed that both morphologies presenting wurtzite crystal of ZnO. The nanorod showed strong (002) orientation of ZnO.
SYNTHESIS 7-HYDROXY-3’,4’-DIMETHOXYISOFLAVON FROM EUGENOL Andi Hairil Alimuddin; Muhammad Idham Darussalam Mardjan; Sabirin Matsjeh; Chairil Anwar; Mustofa Mustofa; Eti Nurwening Sholikhah
Indonesian Journal of Chemistry Vol 11, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.66 KB) | DOI: 10.22146/ijc.21404

Abstract

Eugenol from the isolation of clove leaves oil had been utilized in the synthesis of 7-hydroxy-3',4'-dimethoxy-isoflavone based on deoxybenzoin intermediate. The raw material was firstly converted into methyleugenol using DMS (89.87%). Secondly, methyl eugenol was oxidized using KMnO4 to produce 3,4-dimethoxybenzyl carboxylic acid (21%). Friedel-Craft acylation of it with recorcinol produced 3,4-dimethoxybenzyl-2',4'-dihydroxyphenyl ketone (deoxybenzoin intermediate) in 78% yield. Eventually, cyclization of the intermediate with reagents of BF3.OEt2/DMF/POCl3 yielded 7-hydroxy-3',4'-isoflavone in 85% yield.
SYNTHESIS, CHARACTERIZATION AND ADSORPTION TEST OF POLY-TETRA-p-PROPENYLTETRAHYDROXYCALIX[4]ARENE FOR CADMIUM ION Triana Kusumaningsih; Jumina Jumina; Dwi Siswanta; Mustofa Mustofa; Keisuke Ohto; Hidetaka Kawakita
Indonesian Journal of Chemistry Vol 11, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.647 KB) | DOI: 10.22146/ijc.21408

Abstract

Synthesis, characterization and adsorption test of poly-tetra-p-propenyl-tetrahydroxycalix[4]arene for cadmium ion had been done. The synthesis was carried out in five steps, which were (1) synthesis of p-t-butylcalix[4]arene from p-t-butylphenol, (2) debutylation of p-t-butylcalix[4]arene, (3) tetraallylation of 25, 26, 27, 28 tetrahydroxycalix[4]arene with NaH and allylbromide in dry tetrahydrofuran, (4) Claissen rearrangement of 25, 26, 27, 28-tetrapropenyloxy- calix[4]arene, and (5) polymerization of tetra-p-propenyltetrahydroxycalix[4]arene to yield poly-tetra-p-propenyltetrahydroxycalix[4]arene. Analysis of products was performed using melting point analysis, FT-IR, and 1H NMR spectrometers. The yield of polymerization was 80.35% and m.p > 380 °C. Characterization of poly-tetra-p-propenyltetrahydroxycalix[4]arene was done using SEM and SAA. Structure of poly-tetra-p-propenyltetrahydroxycalix[4]arene was sparsely porous with crosslinked netty architectures, and possessed surface area of 46.572 m2/g. The application of poly-tetra-p-propenyltetrahydroxycalix[4]arene in the adsorption of Cd(II) cation had also been conducted. Adsorption parameters investigated included medium pH and contact time as well as adsorption isotherm. The resin could be applied as a good adsorbent in the adsorption of Cd(II) metal cation. The adsorption followed Langmuir isotherm model, where the measured adsorption capacity, adsorption constant (K), and adsorption energy were 8.5933 x 10-2 mmol/g, 485 L/mmol, and 32.653 KJ/mol, respectively.
IRON CHELATING AND ANTIRADICAL ACTIVITY OF KAYU MANIK LEAVES (Trema orientalis) Salprima Yudha S.; Eka Angasa; Sri Ningsih; Syalfinaf Manaf; Suli Anggria Murni; Fatan Umbara
Indonesian Journal of Chemistry Vol 11, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.288 KB) | DOI: 10.22146/ijc.21410

Abstract

A methanol soluble fraction extracted from Kayu Manik leaves (Trema orientalis) from Seluma, Bengkulu, exhibited an antiradical activity 69.73% (scavenging activity of the stable 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical) that was almost similar to that of 1 mM ascorbic acid. On the other hand, the iron chelating activity was 40.74%. We believe that it would be useful to take the results as an alternative for processing industries and can be observed as a good source of new agent for iron chelator.

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