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Indonesian Journal of Chemical Research
ISSN 2338-5359 · Department of Chemistry, Pattimura University · 347 artikel di indeks
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Utilization of Natural Zeolite Impregnated with Fe for Decolorization of Methylene Blue
Wastewater containing methylene blue, discharged into rivers, significantly impacts water quality due to its resistance to natural degradation. This study investigated the treatment of methylene blue using the photo-Fenton method, employing UV light to generate hydroxyl radicals (•OH) through the…
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Effectiveness of Montmorillonite-ZnO as Photocatalyst for Adsorption and Degradation of Methylene Blue
This study aims to synthesize, characterize, and evaluate the photocatalytic activity of a montmorillonite–ZnO (MMT/ZnO) composite for the degradation of methylene blue (MB) under ultraviolet (UV) and dark (non-UV) conditions. The composite was prepared by mixing synthetic montmorillonite derived…
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Simultaneous Saccharification and Fermentation of Sugarcane Bagasse by Saccharomyces Cerevisiae and Zymomonas Mobilis
Sugarcane bagasse represents a promising lignocellulosic feedstock for second-generation bioethanol production. This study evaluated the performance of immobilized Simultaneous Saccharification and Fermentation (SSF) systems using Saccharomyces cerevisiae and Zymomonas mobilis for ethanol…
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Intermolecular Characterization of Chitosan from the Exoskeleton of Windu Prawn (Penaeus monodon) and Mangrove Crab (Scylla sp.)
Chitosan (C6H11NO4)n is a chitin-derived polymer that has good biocompatibility, biodegradability, and bioabsorbability properties. This compound can be obtained from exoskeleton waste such as mangrove crabs and Windu prawn. This study aims to evaluate the comparison of chitosan levels based on the…
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Study of Mercury and Arsenic Contamination in Gold Processing Tailings from Gunung Botak, Buru Island – Maluku
Buru Island in Maluku Province is one of the sites of unlicensed gold mining activities (Illegal Gold Mining, IGM), which may lead to environmental pollution due to improper waste management. This study aimed to analyze the concentrations of mercury (Hg) and arsenic (As) as hazardous pollutants…
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The Antioxidant Test of Ecoenzymes from Various Fruit Peel Wastes
Indonesia is a country with a large population and rapid industrial growth, facing serious challenges related to waste management. Waste is the remains produced by human activities. One interesting solution to handle the problem is the production of ecoenzymes through the fermentation process of…
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Utilization of Lignin from Oil Palm Empty Fruit Bunches (OPEFB) for the Fabrication of Eco-Friendly Superhydrophobic Sponges
The escalation of crude oil exploitation poses significant risks of leakage and oil spills in the oceans. Therefore, this research aims to synthesize superhydrophobic sponges utilizing lignin derived from Oil Palm Empty Fruit Bunch (OPEFB) waste. Lignin was isolated from OPEFB with the addition of…
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Cytotoxicity of Kamandin Saebo Glossocardia leschenaultii [Cass.] Veldkamp Extract with Various Solvents on T47D Cells
In Indonesia, cancer is one of the diseases with a high mortality rate. In 2018, there were 348,809 cases of cancer, with 16.7% of all cases being breast cancer. In Indonesia, breast and cervical cancer are the most common types. The purpose of this study was to determine the secondary metabolite…
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Isolation and Characterization of Humic Acid from Soil Humus from Ahuru Area, Ambon Island, and its Application as Adsorbent for Metal Ions Cu(II) and Pb(II)
Research on the isolation and characterization of humic acid from soil humus in the Ahuru area, Ambon Island, has been conducted. The isolation and purification of humic acid were carried out using an extraction method based on its solubility in a 0.1 M NaOH solution and precipitation in 6 M HCl…
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Formulation and Characterization of Uncaria gambir (U. gambir) Extract Cream as an Anti-Psoriasis Candidate: In Silico and In Vitro Studies
Background: Psoriasis is a chronic inflammatory skin disorder in which oxidative stress and COX-2–mediated pathways contribute to disease progression. Conventional topical therapies, particularly corticosteroids, are effective but associated with adverse effects and limited mechanistic targeting…
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Development of a Rapid Paper Test Kit Method Based on Silver Nanoparticles for Early Detection of Stroke Disease
Stroke is one of the leading causes of death worldwide, there’s a need for rapid and affordable diagnostic tools. This study developed a paper test kit based on a colorimetric sensor utilizing silver nanoparticles (AgNp) synthesized via sodium borohydride (NaBH4) reduction for cortisol detection as…
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Flow Synthesis of Ni–BDC: Effects of Flow Rate and Temperature on Yield and Apparent Crystallinity
Nickel terephthalate (Ni–BDC) was synthesized in a sonicated coiled-tubing flow reactor to examine the effects of flow rate and temperature on isolated yield and apparent crystallinity. A solvothermal product prepared at 140 °C for 12 h was used as the reference. Flow synthesis was evaluated at…
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Modification of Lead Adsorbent from Activated Carbon of Cassava Peel Waste (Manihot esculenta) using Sodium Alginate
The study aimed to address lead (Pb) contamination in aquatic environments by utilizing an adsorbent derived from cassava peel waste. The adsorbent was prepared by carbonizing cassava peel at 350 °C, followed by chemical activation using NaOH. To enhance its adsorption performance, the activated…
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Antibacterial Sulfonated Hydroxyxanthone Derivatives: Synthesis, In Vitro Evaluation, and Molecular Docking Studies
The emergence of antibiotic resistance and the declining drug effectiveness make it imperative to identify potential drug candidates. This study aims to synthesize hydroxyxanthone derivatives as antibacterial candidates. Activity tests were carried out in vitro using Staphylococcus aureus and…
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Synthesis and Characterization of Transition Metal Complexes with an Indole-Based Azo-Schiff Ligand
In this study, an indole-based azo Schiff base ligand was first synthesized via diazotization coupling and Schiff base condensation. The ligand was then coordinated with four transition metal ions, namely Cu (II), Ni (II), Co (II), and Zn (II), and stable-colored solid complexes were isolated…
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Effect of Dip-Coating Immersion Time of Mangosteen Peel Extract on Alginate/Banana Fiber Biopolymer as a Biodegradable Antibacterial Absorbent Material
The increasing use of synthetic superabsorbent polymers in hygiene products has raised environmental and health concerns due to their non-biodegradable nature and potential chemical residues. This study investigated the effect of dip-coating immersion time on the physical, antibacterial, and…
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Preparation and characterization of a lignocellulosic biosorbent from cocoa pod husks (Theobroma cacao L.): optimization by Response Surface Methodology
The valorization of lignocellulosic agro-industrial waste into low-cost adsorbents offers a promising route for treating colored textile effluents. The biosorbent was prepared from cocoa pod husks, an abundant residue in Côte d'Ivoire, through drying, grinding, sieving, and mild alkaline activation…
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Synthesis of Silver Nanoparticles Using Nyamplung Leaf Extract (Calophyllum Inophyllum L.) As A Bioreducing Agent with Microwave Irradiation and Evaluation of Its Antibacterial Activity
Silver nanoparticles (AgNPs) were synthesized using a bioreduction method, with nyamplung leaf extract (Calophyllum inophyllum L.) serving as a reducing agent for AgNO₃, in which Ag⁺ was reduced to Ag⁰ through microwave irradiation. The formation of AgNPs was indicated by a color change and…