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JPSE (Journal of Physical Science and Engineering)
Published by Universitas Negeri Malang
ISSN : 25412485     EISSN : 25412485     DOI : -
Core Subject : Science, Engineering,
Astronomy Electrical & Electronics Engineering Materials Science & Nanotechnology Physics
JPSE (Journal of Physical Science and Engineering) is published twice a year in April and October by Physics Department of Universitas Negeri Malang, Indonesia. e-ISSN: 2541-2485 The journal is devoted to publishing original, frontier and important of various branches of Physics Science and Engineering. Editors welcome scholars, researchers and practitioners of Physics around the world to submit scholarly articles to be published through this journal (free of charge).
Arjuna Subject : -
Articles 108 Documents
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The Role of CTAB Surfactant Composition on the Structural and Magnetic Properties of Mn0.5Zn0.5Fe2O4 Ferrofluid for Energy Harvesting Devices Wa Ode Umratul Khazanah; Arif Hidayat; Ahmad Taufiq; ST. Ulfawanti Intan Subadra
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

Concerns about environmental damage caused by pollution and the use of non-renewable energy sources have driven many researchers to explore sustainable energy-harvesting materials. This study successfully developed an energy harvester based on Mn0.5Zn0.5Fe2O4 ferrofluid. Notably, Cetyl Trimethyl Ammonium Bromide (CTAB) was used as the surfactant in the synthesis of the Mn0.5Zn0.5Fe2O4 ferrofluid via the coprecipitation method. The CTAB mass was varied at 0, 0.25, 0.5, 0.75, and 1 gram, labeled as MZC0, MZC0.25, MZC0.5, MZC0.75, and MZC1. XRD patterns showed that MZC0 have a cubic spinel structure, while CTAB addition altered the structure to monoclinic, following CTAB’s pattern. FTIR spectra at 418.1, 571.1, and 445.3 cm⁻¹ confirmed Mn–O, Fe–O, and Zn–O stretching, indicating successful spinel formation. Meanwhile, FTIR bands at 2800 and 2900 cm⁻¹ in MZC0.25–MZC1 samples were due to C–H stretching from CTAB. VSM analysis revealed a decreasing saturation magnetization (Ms) with increasing CTAB. SEM images confirmed surfactant coating on nanoparticles. Energy harvesting tests showed output voltages of -0.4 to 2.9 V and low induced currents (0.3–1.9 μA), suggesting the potential of Mn0.5Zn0.5Fe2O4/CTAB-based ferrofluid as an eco-friendly energy harvester.
Performance Comparison of DSSCs-based Solid Electrolyte with Different Counter Electrodes Erma Surya Yuliana; Nasikhudin Nasikhudin; Nurul Hidayat; Arif Hidayat; Nandang Mufti
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

The counter electrode (CE) in dye-sensitized solar cells (DSSCs) has an essential impact on the photovoltaic performance and long-term stability of DSSCs. Carbon materials, such as activated carbon (AC) and graphene, are attractive candidates for CE materials in DSSCs due to their low cost, high thermal conductivity, and high specific surface area. In this work, the manufacture of carbon CE using the knife coating method. Then, its performance was tested using a solar simulator and electrochemical impedance spectroscopy (EIS) testing. The samples with carbon and graphene counter electrodes show efficiencies of 0.29% and 0.23%, respectively. The findings revealed that the CE-based carbon materials had a significant impact on the performance of DSSCs. The proposed carbon materials, having low-cost fabrication, high conductivity, high thermal stability, and good corrosion resistance to electrolytes, may offer a promising solution for solar cell applications.
Enhancement of Antibacterial Agent of Cobalt Ferrite/AC/DMSO with Ferrofluid Dea Berliana Ramadhani; Ahmad Taufiq; Sunaryono Sunaryono
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

Global health is under serious threat due to antimicrobial resistance, especially in bacteria. Therefore, this study offers an alternative in the form of an antibacterial agent based on cobalt ferrite/AC/DMSO ferrofluid. This ferrofluid was successfully synthesized using the coprecipitation method, which was confirmed by XRD, SEM, FTIR characterization, and antibacterial tests. XRD results showed that cobalt ferrite nanoparticles formed an inverse cubic spinel crystal structure, and the AC material was amorphous. The particles were spherical in shape that were quite agglomerated with particle sizes of 28.5 ± 0.5 nm. Then, the formation of cobalt ferrite and AC was also confirmed by the appearance of M-O and C-O, C=O bonds. DMSO surfactant was shown with a typical bond, namely S=O. While coconut oil was detected by C-O, C=O, CH2, and CH3 bonds. Interestingly, the performance of cobalt ferrite/AC/DMSO ferrofluid is shown by the antibacterial test results which produce an inhibition zone diameter of Escherichia coli bacteria of 9.50 ± 1.01 mm.
Flow-Rate-Regulated Co-Precipitation via Peristaltic Pump for Controlled Nucleation and Morphology of ZnO Nanorods Thathit Suprayogi; Samsul Arifin; Sudarman Rahman; Mu'afa Purwa Arsana; Rokiy Alfanaar; Awalul Fatiqin; Yahya Febrianto
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

This study presents a flow-rate-regulated co-precipitation method for synthesizing ZnO nanoparticles using a peristaltic pump to enhance control over nucleation and growth processes. The primary objective was to investigate the effect of controlled reactant delivery on the structural and morphological properties of ZnO nanoparticles. A peristaltic pump system was calibrated to provide a stable and continuous flow of the precipitating agent, achieving an average flow rate of 93.39 ± 1.39 µL/s with high linearity (R² = 0.99946). ZnO nanoparticles were synthesized under controlled conditions and characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results confirmed the formation of a single-phase hexagonal ZnO structure with high crystallinity and an average crystallite size of 55.98 ± 8.35 nm. SEM analysis revealed the formation of nanorod structures with relatively uniform morphology. The improved uniformity is attributed to stable supersaturation conditions enabled by precise flow-rate control. These findings demonstrate that flow-rate regulation is a critical parameter in co-precipitation synthesis and offers a simple, cost-effective strategy for improving reproducibility and structural control in nanoparticle fabrication.
Comprehensive Investigation of MXene and Cassava Tubers-Bamboo Stems Activated Carbon Electrodes: Configuration-Dependent Supercapacitor Performances Nuviya Illa Muthi Aturroifah; Markus Diantoro; Nasikhudin Nasikhudin
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

This study explores the structural, morphological, and electrochemical characteristics of supercapacitor active materials derived from MXene (Ti3C2Tx) and activated carbon (AC) synthesized from cassava tubers and bamboo stems. The etching process using HF effectively converted the MAX phase into MXene, confirmed by the disappearance of the (104) diffraction peak and the shift of the (002) peak to a lower diffraction angle, indicating increased interlayer spacing due to aluminum removal and intercalation of functional groups and water molecules. SEM analysis revealed that MXene exhibits thinner layered structures with reduced crystallite size (112.65-8.13 nm), confirming the formation of a highly conductive two-dimensional structure. Meanwhile, AC cassava tubers-bamboo stems presented an amorphous graphitic structure with a three-dimensional porous morphology resembling a sunflower pattern and an average pore diameter of 3.52 µm, which enhances ion transport and active surface area. Electrochemical performance evaluation demonstrated that the AC-MXene-Al Foil//AC-MXene-Cu Foil configuration achieved the highest performance, with a specific capacitance of 46.201 Fg-1, energy density of 5.770 Whkg-1, and power density of 18.996 Wkg-1. Dunn method analysis revealed that the charge storage mechanism is primarily surface capacitive. These results demonstrate the promising potential of biomass-derived AC/MXene composites for high-performance and sustainable energy storage applications.
The Influences of Carbon Composition on the Performance of Zn-Mn0.25Fe2.75O4@C Thin Films as Zinc-Ion Battery Electrodes Mohammad Naim Bahar; Eny Latifah; Nadiya Miftachul Chusna; Kormil Saputra; Fadhil Fathurochman; Abdul Majeed Himat; Sunaryono Sunaryono
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

Batteries based on Zinc-ion (ZIB) have a high capacity, low cost, low redox potential, and impressive electrochemical stability in water due to their hydrogen evolution. Fe3O4 NPs with carbon coated can significantly increase the electrical conductivity of battery. This study investigates the impact of carbon addition on the performance of Zn-Mn0.25Fe2.75O4@C as an electrode material for zinc-ion batteries. The research focuses on developing Zn-Mn0.25Fe2.75O4@C, which combines the advantages of zinc-ion batteries with the improved magnetic and electrical properties of magnetite materials. The material was synthesized using a spin coating method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM), transmission electron microscopy (TEM), cyclic voltammetry (CV), and charge-discharge (CD) tests. The addition of carbon was found to enhance specific capacitance, energy density, power density, cycle stability, and magnetic properties of the battery electrodes. FTIR characterization indicated the presence of O-H, C-O, Fe-O, Mn-O, C=C, C-N, and C=O groups. XRD revealed a cubic crystal structure with particle sizes between 6.10 nm and 11.53 nm. VSM analysis demonstrated a reduction in magnetization, coercivity, and magnetic remanence with carbon addition. TEM analysis showed an average particle size of 11.5 nm and aggregation of magnetite nanoparticles. CV results indicated the significant potential for Zn-Mn0.25Fe2.75O4@C as a battery electrode with the highest specific capacitance in MCF2. Charge-discharge tests highlighted that MCF2 is ideal for large energy storage, MCF3 for fast charging, and MCF4 for low-performance applications.
Synthesis and Characterization of Magnetite Nanofiber for Magnetic Field Sensor Nabila Putri Aulia; Arif Hidayat; Ahmad Taufiq
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

This study reports the performance of a magnetite sensor using magnetite nanofibers. Magnetite nanoparticles, synthesized from natural iron sand via coprecipitation and integrated into a polyvinylidene fluoride matrix by electrospinning. Structural analysis confirmed by x-ray diffraction (XRD), scanning electron microscopy (SEM), and fourier transform infrared (FTIR) characterizations. The nanofiber had an average diameter of 618.4 nm. The results of the magnetic property analysis showed that the nanofiber was superparamagnetic with a saturation magnetization value of 15.04 emu/g. The sensor exhibited good sensitivity and resolutions with a value 3.31 mV/mT and 0.015 mT with excellent stability.
Preliminary Studies on Magnetite/Cdots Nanocomposite: Structure, Functional Compound, and Morphology Bian Itsna Ashfa Al Ashfiya; Ahmad Taufiq
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

This research develops Fe₃O₄/Cdots nanocomposites as an effective heavy metal adsorbent in batik industrial waste. The batik industry produces waste with hazardous heavy metal content that requires efficient processing methods. Fe₃O₄ was chosen because of its magnetic properties that facilitate separation after adsorption, while Cdots have the ability to detect and adsorb heavy metal ions. Fe₃O₄/Cdots nanocomposites are synthesized through hydrothermal methods and coprecipitation with Cdots materials sourced from orange juice and Fe₃O₄ from natural iron sand. XRD analysis confirmed the formation of the crystalline structure of Fe₃O₄ and the amorphous phase of Cdots, which are important for magnetic properties and adsorption. The FTIR spectrum shows the presence of functional groups that support interactions with metal ions. SEM test results showed particle sizes ranging from 35–65 nm, while EDX data confirmed the dominant composition of Fe₃O₄ and Cdots. This nanocomposite offers the potential as an efficient and magnetically separable batik waste treatment solution.

Page 11 of 11 | Total Record : 108

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