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Progressive Physics Journal
Published by Universitas Mulawarman
ISSN : -     EISSN : 27227707     DOI : https://doi.org/10.30872/ppj.v3i2
Core Subject : Health, Science, Engineering,
Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics
Progressive Physics Journal adalah kumpulan hasil penelitian berbagai cabang ilmu Fisika, seperti Fisika Teori, Fisika Material, Fisika Elektronika & Instrumentasi, Fisika Medik, Fisika Komputasi dan Pemodelan, Geofisika, Oseanografi, dan cabang ilmu Fisika lainnya yang masih relevan. Progressive Physics Journal terbit sebanyak 2 kali dalam setahun. Ilmu Fisika perlu dikomunikasikan kepada masyarakat untuk diambil manfaatnya baik secara langsung maupun tidak langsung dan untuk perkembangan ilmu Fisika itu sendiri. Progressive Physics Jornal, sebagaimana nama tersebut diberikan, dimaksudkan tidak hanya untuk mengkomunikasikan ilmu Fisika yang bersifat atraktif dan inovatif, tapi juga progresif.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 82 Documents
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Pemodelan Perlapisan Bawah Permukaan Manifestasi Semburan Gas Biogenik di Kampung Holtekamp Jayapura Menggunakan Metode Elektromagnetik Pasif Bangkit Sudrajad
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jjvys482

Abstract

Natural gas is a natural resource abundant in Indonesia. This abundance of natural gas potential makes Indonesia one of the world's natural gas producers. Papua is one of the regions in Indonesia with large potential natural gas reserves, including in the Jayapura area. The existence of biogenic gas potential in the Jayapura City area is indicated by the biogenic gas eruption that emerged during the drilling process of a well by residents of Holtekamp Village, Muara Tami District, Jayapura City. This gas eruption incident caused unrest among residents. The gas eruption that appeared in the Holtekamp Village area is not the first in the Muara Tami District area but has also been found in West Koya. In relation to this, geophysical research was conducted using a passive electromagnetic survey method. This method is used to determine the condition of the subsurface structure locally. Based on the results of the electromagnetic modeling method, the results showed that the condition of the subsurface layer structure at the location of the natural gas well eruption manifestation is a layer of coastal sediment and swamp areas that have several layers of aquifers, aquitards, and aquicludes. The identified aquifer layers consist of an unconfined aquifer layer near the surface; A confined aquifer containing a gas trap, and a leaky aquifer that allows natural gas to migrate from deeper to shallower aquifers. The leaky aquifer is supported by the identification of an aquitard capable of transmitting fluid migration. In the gas trap area, an aquiclude layer, a wet clay layer (claycap), was identified at a depth of 27.5-28 meters. This claycap layer traps the pressurized gas at that location.
The effect of microemulsion method on the characteristics of Fe3O4/TiO2 material and its relationship with performance in methylene blue degradation: A Systematic Review Fauziana Hidayat; Kormil Saputra; Dian Wijaya Kurniawidi
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/a2enhy22

Abstract

TiO2-based photocatalysis offers a potential solution, but it has limitations, including high electron–hole recombination and difficulty in separating the catalyst after the reaction. The development of Fe3O4/TiO2 nanocomposites via the microemulsion method was conducted to enhance performance while facilitating catalyst separation. This study aims to examine the influence of the microemulsion method on material characteristics, characterization results, and their relationship to methylene blue degradation performance. The study was conducted using a systematic review with a PRISMA-compliant approach on literature from Scopus over the past 10 years. The selection process yielded five relevant articles. The microemulsion method was proven capable of producing nanoparticles (8–50 nm) with a homogeneous distribution and a mesoporous structure with a high surface area. XRD and SEM characterization results showed a dominance of the anatase phase or a mixture of anatase-rutile, which plays a role in enhancing charge separation. Photocatalytic performance showed a methylene blue degradation efficiency of up to approximately 90% within 60 minutes under sunlight. The improved performance was influenced by small particle size, high surface area, pore structure, and crystal phase composition. The addition of Fe3O4 has the potential to enhance electron transfer, suppress recombination, and facilitate catalyst separation through its magnetic properties. The microemulsion method plays a direct role in controlling the structure and characteristics of the material, which leads to improved photocatalytic performance of Fe3O4/TiO2 in the degradation of methylene blue.

Page 9 of 9 | Total Record : 82

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