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Repositori Institusi
Brondolan tu si Thomas = Brondolan untuk Thomas
Buku cerita ini menceritakan tentang sekelompok anak bernama Ceo, Deo, dan Mira yang mengumpulkan Brondolan untuk dijual dan hasil penjualannya akan digunakan untuk membantu temannya Thomas. Mereka akan menceritakan pengalaman mereka ketika mengumpul...
Repositori Institusi
Pendidikan Singapura di masa pandemic covid-19
Pandemi CORONA-19 telah mengubah berbagai aspekkehidupan. Termasuk dunia pendidikan. Proses belajarmengajar di sekolah/kampus mengalami perubahan pola belajar menjadi school from home/home based learning/online. Hal tersebut tidak hanya dialami oleh ...
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
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
Anionic and Cationic Dyes Removal from Aqueous Solutions by Adsorption onto Synthetic Mg/Al Hydrotalcite-Like Compound
Indonesian Journal of Chemistry; Vol 15, No 3 (2015); 234-241
The current investigation reports an effective adsorption of both anionic species and cationic dyes on Mg/Al hydrotalcite-like compounds (Mg/Al HTlc) synthetic from brine water, as novel, inexpensive available alternative to the commercial hydrotalci...
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
Methylation of Eugenol Using Dimethyl Carbonate and Bentonite as Catalyst
Indonesian Journal of Chemistry; Vol 15, No 3 (2015); 256-262
Eugenol is a compound with a variety of reactive functional groups such as allyl, hydroxy and methoxy. The presence of the functional groups brings eugenol possible to undertake the transformation into various derivative compounds with diverse activi...
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
Biodiesel Production from Waste Palm Oil Catalyzed by Hierarchical ZSM-5 Supported Calcium Oxide
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 98-104
Biodiesel production from waste palm oil catalyzed by hierarchical ZSM-5 supported calcium oxide was studied. The activity of CaO increased after supported on h-ZSM-5 resulting an increase in conversion from 93.17% to 95.40%. A maximum conversion of ...
Jurnal Institusi
Prediction of Student Participation in the Library of the University of Muhammadiyah Malang Based on Social Media Activities Using Decision Tree
Lentera Pustaka: Jurnal Kajian Ilmu Perpustakaan, Informasi dan Kearsipan; Vol 11, No 2 (2025): December; 29-42
Background: Social media has become an effective tool in promoting library services. This study uses the Decision Tree algorithm to predict student participation in the University of Muhammadiyah Malang library based on their social media activities....
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
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...
PubMed
Characterization of an Iron-Copper Bimetallic Metal-Organic Framework for Adsorption of Methyl Orange in Aqueous Solution
J Anal Methods Chem
Iron-based organic frame material MIL-53 (Fe) was synthesized by the hydrothermal method with Cu(2+) incorporated to obtain bimetallic composite MIL-53 (Fe, Cu). The structure and morphology of the material were characterized by SEM, XRD, BET, FTIR, ...
PubMed
Efficient removal of arsenic (V) and methyl orange from aqueous solution using hollow magnetic chitosan composite microspheres: Low arsenic concentration, high adsorption capacity, and minimal adsorbent requirement
PLoS One
In this study, hollow Fe(3)O(4)-SiO(2)-chitosan adsorbent with an optimal chitosan concentration of 2% (w/v) was synthesized to enhance arsenic (V) adsorption performance from low-concentration aqueous solutions. The hollowing process was used to enh...
PubMed
Isotherm, Thermodynamics, and Kinetics of Methyl Orange Adsorption onto Magnetic Resin of Chitosan Microspheres
Int J Mol Sci
Severe environmental pollution problems arising from toxic dyestuffs (e.g., methyl orange) are receiving increasing attention. Therefore, dyes’ safe removal has become a research hotspot. Among the many physical–chemical removal techniques, adsor...
PubMed
Fluorescence Quenching of Graphene Quantum Dots from Orange Peel for Methyl Orange Detection
Nanomaterials (Basel)
Methyl orange (MO) is an organic synthetic dye widely used in laboratory and industrial applications. In laboratory settings, it serves as an acid–base indicator due to its distinct color change in both acidic and alkaline environments. Industriall...
PubMed
Enhanced Adsorption of Methyl Orange from Aqueous Phase Using Chitosan–Palmer Amaranth Biochar Composite Microspheres
Molecules
To develop valuable applications for the invasive weed Palmer amaranth, we utilized it as a novel biochar source and explored its potential for methyl orange adsorption through the synthesis of chitosan-encapsulated Palmer amaranth biochar composite ...
PubMed
Catalytic Degradation of Methyl Orange Using Fe/Ag/Zn Trimetallic Nanoparticles
Nanomaterials (Basel)
The present study involves the synthesis of polyvinylpyrrolidone (PVP)-stabilized iron-based trimetallic nanoparticles with different metal addition sequences (Fe/Ag/Zn, Fe/Zn/Ag and Fe/(Zn/Ag)) using the sodium borohydride reduction method. In order...
PubMed
Controlling the Surface Morphology of Two-Dimensional Nano-Materials upon Molecule-Mediated Crystal Growth
Nanomaterials (Basel)
The surface morphology of Mg-Al-layered double hydroxide (LDH) was successfully controlled by reconstruction during systematic phase transformation from calcined LDH, which is referred to as layered double oxide (LDO). The LDH reconstructed its origi...
PubMed
Self-Sustained Three-Dimensional Macroporous TiO(2)-Graphene Photocatalyst for Sunlight Decolorization of Methyl Orange
Nanomaterials (Basel)
The development of highly efficient sunlight-driven photocatalysts has triggered increased attention due to their merit in effluent treatment through a chemically green approach. To this end, we present herein the synthesis and characterization of th...
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