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Andri Agus Rahman
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Organisasi Riset Nanoteknologi dan Material Badan Riset dan Inovasi Nasional Gedung Manajemen (Gedung 720) Kawasan Sains dan Teknologi B.J. Habibie Jl. Raya Puspiptek 60, Setu, Tangerang Selatan, Banten, 15314
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INDONESIA
Jurnal Sains Materi Indonesia
Published by BRIN Publishing
ISSN : 14111098     EISSN : 2614087X     DOI : https://doi.org/10.55981/jsmi
Core Subject : Science, Engineering,
Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Jurnal Sains Materi Indonesia (Indonesian Journal of Materials Science, JUSAMI) is an international peer-reviewed journal that publishes significant and important research from all areas of materials science and engineering. The topics discussed in JUSAMI are research & development results in materials science and engineering, technological innovations and applications in industry based on materials such as polymers, ceramics, composites, metals, noble metals, metal alloys, oxides, or carbon, which are related to mechanical, magnetic, physical, optical, dielectric or electronic properties (superconductivity, semiconductivity, superionic conductivity, etc.) with discussion including synthesis, modification and development of methods; testing and characterization; simulation and modeling; nuclear engineering and its applications in materials science, etc.
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 134 Documents
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Characteristics and Photocatalytic Performance of Coprecipitation Praseodymium (Pr)-doped Strontium Titanate for Methylene Blue Degradation Khoiria, Salsa Nurul; Sandi, Dianisa Khoirum; Nurosyid, Fahru; Suryana, Risa; Iriani, Yofentina
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2026.13450

Abstract

Strontium titanate (SrTiO₃ or STO) is a perovskite material with promising photocatalytic properties for wastewater degradation. Doping with rare-earth elements such as praseodymium (Pr) can enhance its performance by modifying structural and electronic characteristics. In this study, Pr-doped STO (Sr1-xPrxTiO3, x = 0%, 2%, and 4%) was synthesized via the coprecipitation method. X-ray diffraction (XRD) confirmed a single-phase perovskite structure with high crystallinity, while Fourier transform infra-red (FTIR) analysis verified the formation of Sr–Ti–O bonds. Particle size analysis (PSA) and surface area analysis (SAA) with the Brunauer-Emmett-Teller (BET) method revealed that higher Pr concentrations reduced particle size and increased surface area. Photocatalytic activity was evaluated using methylene blue (MB) degradation under ultraviolet (UV) irradiation for up to 5 hours. The Sr0.98Pr0.02TiO3 sample exhibited the best performance, achieving 73.08% MB degradation after 5 hours, demonstrating the effectiveness of moderate Pr doping in enhancing photocatalytic activity
Density and Tensile Properties Analysis of Biocomposite from Lid Film Waste and Oil Palm Empty Fruit Bunch Fiber Farishi, Salman; Mawaddah, Siti Mutia; Chalid, Mochamad; Zulys, Agustino; Ghozali, Muhammad
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2026.14209

Abstract

Multilayer plastic waste, particularly from the bottled water industry, represents a persistent challenge in current plastic waste management strategies. Simultaneously, oil palm empty fruit bunch (OPEFB) waste, though often discarded, possesses significant potential for sustainable material development. This study explores the utilization of both waste streams as raw materials for biocomposite fabrication, thereby addressing environmental concerns while reducing dependence on virgin polymer resources. The multilayer lid film waste (comprising PET, LDPE, and LLDPE) and OPEFB fibers were processed through crushing, sieving, and extrusion to form pellets with varying OPEFB fiber loadings (30%, 50%, and 70% by weight). The resulting biocomposite was characterized using FTIR, XRD, SEM, density measurements, and tensile testing. The biocomposite containing 70% OPEFB exhibited the slowest degradation but also the lowest crystallinity (10.84%). In contrast, the 30% OPEFB composite showed the highest tensile strength (16.86 MPa) and elongation at break (3.23 MPa). SEM analysis revealed that a higher fiber content increased the porosity within the composite matrix. These findings demonstrate the potential of combining multilayer plastic and OPEFB waste for biocomposite applications, contributing to both material innovation and environmental sustainability.
Physical and Mechanical Properties of Chitosan Bioplastics with Ramie Fiber Concentration Variations Jamilah, Umi; Sujito; N. Hidayatillah; E. Hidayah
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2026.14276

Abstract

Bioplastics are biodegradable materials derived from natural polymers such as starch, cellulose, lignin, or chitosan and are considered sustainable alternatives to conventional plastics. In this study, chitosan-based bioplastics were prepared using chitosan extracted from fish scales and reinforced with alkali-treated ramie fibers. Chitosan was dissolved in 1% acetic acid at 50 °C for 4 h, followed by the addition of 5% citric acid and ramie fibers at various contents (15%, 20%, 25%, and 30% relative to chitosan mass), and stirred for an additional hour. The resulting bioplastics were characterized for tensile strength, elastic modulus, water absorption, and surface morphology using SEM. The results indicate that ramie fiber content significantly influences the mechanical and physical properties of the bioplastics. Increasing the fiber content generally enhances tensile strength and reduces water absorption; however, excessive fiber loading can lead to performance deterioration. The optimum formulation was achieved at 25% ramie fiber, exhibiting a tensile strength of 39.60 MPa, an elastic modulus of 43.35 MPa, and a reduction in water absorption of approximately 43% compared to fiber-free bioplastics, along with a more homogeneous surface structure. These findings demonstrate that ramie fiber reinforcement effectively improves the performance of chitosan-based bioplastics.
Preface Volume 27 (2) Year 2026 Rahman, Andri
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Materials science and technology development plays an active role in several fields of life including medicine, infrastructure, energy, computational material science, and others. Researchers and academics are at the forefront of this development. Indonesia Journal of Materials Science ( JUSAMI) was founded to represent their needs, which are now widely recognized as an integral part of scientific and characterization investigations. JUSAMI Vol. 27 No. 2, Year   2026 is proudly published several paper entitled: 1) The Influence of pH on Structural, Morphological, and Optical Properties of Al2O3 Nanoparticles Synthesized by Syzygium aromaticum Leaf Extract; 2) High Temperature Corrosion On Inconel and Carbon Steel Filler of Weldment in Liquid Pb at 800 ̊C; 3) Glucose Detection Using a Surface Plasmon Resonance Biosensor Functionalized by Glucose Oxidase; 4) Enhanced Co₂ Adsorption Using Activated Carbon From Tea Stem Waste Via Activation–Carbonization Strategy;  5) Synthesis and Characterization of Biocompatible Facial Sheet Masks Utilizing Ginger Cellulose and Jicama Starch; 6) Characteristics and Photocatalytic Performance of Coprecipitation Praseodymium (Pr)-doped Strontium Titanate for Methylene Blue Degradation; 7) Density and Tensile Properties Analysis of Biocomposite from Lid Film Waste and Oil Palm Empty Fruit Bunch Fiber; 8) Physical and Mechanical Properties of Chitosan Bioplastics with Ramie Fiber Concentration Variations.

Page 14 of 14 | Total Record : 134

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