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Program Studi Fisika, Fakultas MIPA, Universitas PGRI Palembang Jl. Ahmad Yani Lrg. Gotong Royong 9/10 Ulu Palembang, Sumatera Selatan, Indonesia 30251
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Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Published by Universitas PGRI Palembang
ISSN : -     EISSN : 27145425     DOI : https://dx.doi.org/10.31851/jupiter
Core Subject : Science,
Physics
Jurnal Penelitian Fisika dan Terapannya (Jupiter) Journal publishes research articles from laboratory or field experiment as well as theoretical and elaborative research in field of physics such as theoretical physics, computational physics, material physics, environmental physics, energy physics, medical physics, astrophysics, geophysics, physics education as well as other relevant topics in Physics.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 65 Documents
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Development of a Bio-Battery Based on Key Lime Juice and MgSO₄ Electrolyte in a Solid Tapioca Flour Matrix Mita, Febria; Rahmawati; Toruan, Parmin Lumban; Rahman, Dui Yanto
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.15934

Abstract

Research on bio-batteries as an environmentally friendly alternative energy source continues to progress. This study aims to determine the optimal composition of key lime juice and MgSO4 that produces the maximum current and voltage. Graphite sheets are used as the anode and aluminum sheets as the cathode. The volume of key lime juice is varied at 12 ml, 14 ml, 16 ml, 18 ml, and 20 ml, then 27 g of tapioca flour is gradually added and stirred until a solid electrolyte is formed. The solid electrolyte is then placed between the graphite and aluminum sheets. The optimal composition of key lime juice is then combined with varying masses of MgSO4 at 0.1 g, 0.2 g, 0.3 g, 0.4 g, and 0.5 g to achieve higher current and voltage. Measurements show that for bio-batteries using only key lime juice as the ion source, the maximum current and voltage obtained are 1.32 mA and 0.648 V, respectively, with an optimal key lime juice volume of 16 ml. Batteries using both MgSO4 and key lime juice as ion sources produce a current and voltage of 3.72 mA and 0.720 V, respectively, with an optimal mass of 0.2 g of MgSO4. This research is very promising for further development due to its simple method and the use of inexpensive and environmentally friendly materials.
Development of an Eco-Friendly Bio-Battery Using Cucumber and NaCl as Ion Sources and Tapioca Flour as a Matrix Widyaningsih, Fitria; Atina; Rahman, Dui Yanto
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.15939

Abstract

The use of natural materials in bio-battery research plays a crucial role in the search for environmentally friendly and cost-effective energy solutions. This study aims to determine the optimal composition of fermented cucumber juice and the addition of NaCl at the fermentation's optimal point to produce maximum current and voltage. Graphite sheets were used as the anode and aluminum sheets as the cathode. The cucumber juice was fermented for varying durations: 0, 24, 48, 72, 96, 120, 144, and 168 hours. Tapioca flour was gradually added until a solid electrolyte was formed. This solid electrolyte was then placed between the graphite and aluminum sheets to measure current and voltage output. At the optimal fermentation time, varying amounts of NaCl (0.5 g, 1 g, 1.5 g, 2 g, 2.5 g, and 3 g) were added to determine the best-performing composition. The results showed that the optimal composition without NaCl was achieved at 48 hours of fermentation, yielding a current of 0.76 mA and a voltage of 0.695 V. With the addition of NaCl, the maximum current and voltage reached 2.01 mA and 0.704 V, respectively, with the optimal NaCl mass being 1.5 g. This research shows great promise for further development due to its simple methodology and the use of low-cost, eco-friendly materials.
Analysis of the Impact of Radiation and Albedo on Variations in Earth's Surface Temperature Nurfaizah, Dwi Ayu; Dahliani, Eka; Widyaputri, Mutya Ardha
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.18574

Abstract

Solar radiation reaching the Earth is partially absorbed by the surface and partially reflected back into the atmosphere as shortwave and longwave radiation. This study aims to analyze the impact of radiation and albedo on variations in Earth’s surface temperature. The experimental procedure involved exposing different surface types—soil, water, and rock—to light for 20 minutes and then observing their behavior without light for another 20 minutes. The results indicate that low-albedo surfaces absorb more radiation, leading to a temperature increase of 3°C, from 26°C to 29°C. Medium-albedo surfaces, such as rock, experienced a similar temperature rise of 3°C (from 28°C to 31°C), whereas high-albedo surfaces, such as water, showed only a 1°C increase (from 27°C to 28°C). These findings highlight the significant role of albedo in regulating surface temperature fluctuations. Surfaces in high-albedo areas tend to cool more rapidly than those in low-albedo regions. This demonstrates that albedo directly influences radiation absorption and temperature change, making it an effective instructional example for understanding physical concepts such as heat transfer and energy balance at the Earth’s surface.
Reduction of Steel Corrosion Rate Using Natural Inhibitor from Cocoa Pod Husk Extract in HCl Solution Prameswari, Apriska; Asmar Putra, Iqbal Kurniawan; Putra, David Eka
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.18933

Abstract

This study explores the effectiveness of cocoa husk extract as a natural corrosion inhibitor for steel exposed to hydrochloric acid (HCl). Steel samples were immersed in the extract solution for four different durations: 48, 96, 144, and 192 hours. After coating, the samples were subjected to an HCl solution for 168 hours. The corrosion rate was assessed using the weight loss method, which quantifies mass reduction as an indicator of corrosion severity. Surface characteristics were analyzed through optical microscopy, Scanning Electron Microscopy (SEM), and theoretical modeling using Density Functional Theory (DFT). The findings demonstrate that the application of cocoa husk extract significantly reduces corrosion rates, with a maximum inhibition efficiency of 78.4%. This improvement is attributed to the formation of a protective layer on the steel surface, which acts as a barrier against acid interaction. The results suggest that cocoa husk extract is a promising, environmentally friendly alternative for protecting steel materials from corrosion.
Functional Groups and Ionic Conductivity of Chitosan/LiOH/ZnO Membranes for Secondary Batteries Sari, Kartika; Setiabudi , Angga; Halifah , Rofikoh; Lumban Toruan, Parmin
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.19766

Abstract

The development of solid-state electrolytes with high ionic conductivity and structural stability is crucial for advancing secondary battery technologies. Solid electrolytes play a critical role in facilitating ion transfer between electrodes, directly impacting battery efficiency. Solid electrolyte polymer membranes can be manufactured for use in secondary batteries as electrical energy storage devices. In batteries, solid electrolytes act as a medium for ion transfer. The polymer membrane was modified by incorporating Zinc Oxide (ZnO) into the chitosan/LiOH polymer membrane using the solution casting method. Fourier Transform Infrared (FTIR) and Electrochemical Impedance Spectroscopy (EIS) tests were conducted. The FTIR analysis of the polymer membrane revealed the presence of functional groups such as OH stretching, -NH stretching, -NH bending, -CO stretching, -CH stretching, and -ZnO stretching. The EIS results demonstrated that the ionic conductivity of the 3% chitosan/LiOH/ZnO membrane was higher at 1.4821 x 10-6 S/cm compared to the 2% chitosan/LiOH/ZnO membrane at 3.6893 x 10-7 S/cm. This study suggests that chitosan/LiOH membranes doped with Zinc Oxide (ZnO) are a promising option for solid electrolyte membranes in secondary batteries

Page 7 of 7 | Total Record : 65

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