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Andi Syam Rizal
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Jurnal Fisika dan Terapannya
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 23021497     EISSN : 27152774     DOI : -
Core Subject : Science,
Physics
Jurnal Fisika dan Terapannya (JFT) adalah jurnal fisika yang diterbitkan oleh Jurusan Fisika, Fakultas Sains dan Teknologi, Universitas Islam Negeri Alauddin, Makassar. Jurnal ini diterbitkan dua kali setahun pada bulan Juni dan Desember. Jurnal ini mencakup artikel penelitian dalam semua aspek fisika dan terapannya. Jurnal ini pertama kali diterbitkan pada bulan Desember 2014 dan secara online di tahun 2019. Artikel hasil penelitian dalam jurnal ini berkaitan dengan fisika yang meliputi adalah fisika teori, fisika material, geofisika, fisika kesehatan, fisika instrumentasi, fisika komputasi, dan astrofisika.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol 12 No 2 (2025)" : 2 Documents clear
Analisis Data Batimetri untuk Penentuan Alur Pelayaran Sungai Kapuas Desa Balai Belungai Kabupaten Sanggau Muqsit J.A, Ibrahim; Zulfian, Zulfian; Putra, Yoga Satria
JFT : Jurnal Fisika dan Terapannya Vol 12 No 2 (2025)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v12i2.56211

Abstract

The Kapuas River is a river located in West Kalimantan. Especially in Balai Blungai Village, Toba District, Sanggau Regency, this area has an important role in the distribution of goods and the mobility of barges carrying sand and bauxite to the Kapuas estuary. The depth of the river can be determined based on bathymetry data. Bathymetry is a measure of the height and low contour of the water base (depth). The purpose of this study was to determine the variation in river depth and determine recommendations for transportation routes on the Kapuas River channel, Balai Belungai Village, Toba District, Sanggau Regency based on bathymetry data. The research method used is the interpolation method used for bathymetry refinement is the triangulation with linear interpolation method by calculating the value of a point against three points that have the closest distance so that in the end the depth contour value is obtained. The tracks for barymetric data parallel to the river are 3 tracks with a track length of 2.7 km to 4.5 km and 6 tracks intersect the three tracks with a track length of 906 m to 971 m. The distance between measurement points is 3 m. The results of the study showed that the bathymetry and current in the Kapuas River, Balai Belungi Village, Toba District, Sanggau Regency vary, with depths between -2 m to -10 m and surface currents of 1.31 m / s to 2.40 m. The recommended shipping lane for loaded ships and barges is at a depth of -5 m to -10 m, with a shipping lane width of 200 m to 500 m.
Sintesis Koloid Nanopartikel Bismut: Peran Citrus limon dan Optimasi Daya serta Waktu Pemanasan Gelombang Mikro Utami, Ni Wayan Mega Savira; Wahyuna Nur; Sukmawati Said
JFT : Jurnal Fisika dan Terapannya Vol 12 No 2 (2025)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v12i2.60550

Abstract

This study successfully synthesized bismuth nanoparticle colloids using citrus limon extract through a microwave heating method. Microwave heating was used as the main factor controlling the particle formation process, so variations in power and heating time were examined to determine their effect on the characteristics of the resulting nanoparticles. The synthesis was carried out by dissolving bismuth powder (Bi(NO₃)₃·5H₂O) into citrus limon extract. The mixture was then heated using microwaves at powers of 100, 300, 450, 600, and 800 W for 1, 3, 5, 7, and 10 minutes. Characterization was performed using UV-Vis, XRD, and TEM to observe the optical properties, crystal structure, and particle morphology and size. The results show that the optimum condition was achieved at 800 W for 5 minutes, marked by a change in the color of the solution to black and maximum absorbance at a wavelength of 272 nm (2,680 a.u.). XRD analysis showed diffraction peaks at 2θ = 27.4°; 38.1°; and 40.0°, corresponding to the hkl planes (012), (104), and (110), confirming the characteristic trigonal crystalline structure of bismuth based on JCPDS standard No. 44-1246. TEM images show a dominant spherical particle morphology with an average size of 33.19 nm. These results prove that microwave heating is capable of accelerating and stabilizing the synthesis of citrus limon extract-based bismuth nanoparticle colloids, producing stable nanoparticles with good morphology.

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