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INDONESIA
INDONESIAN JOURNAL OF APPLIED PHYSICS
Published by Universitas Sebelas Maret
ISSN : 20890133     EISSN : 24776416     DOI : -
Core Subject : Science,
Astronomy Energy Materials Science & Nanotechnology Physics
Indonesia Journal of Apllied Physics provides rapid publication of short reports and important research in all fields of physics. Indonesia Journal of Apllied Physics publishes articles that are of significance in their respective fields whilst also contributing to the disclipline of physics as a whole. Articles should be submitted to the Editorial Office of Indonesia Journal of Apllied Physics through this site. Further information on submission is also available at this site
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Articles 4 Documents
 1 
Search results for , issue "Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022" : 4 Documents clear
Pengaruh Ekstrak Kulit Buah Naga Merah dan Daun Trembesi sebagai Penghambat Korosi pada Baja A36 dalam Larutan HCl 3% Evi Yufita; Zulfalina -; Muhammad Ilham Nur; Fatriah Fatriah; Zulkarnain Jalil
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v12i1.54625

Abstract

Tumbuhan merupakan salah satu sumber daya alam yang dapat dimanfaatkan sebagai zat inhibitor organik. Inhibitor organik digunakan untuk mengatasi laju korosi terutama pada material yang mengandung logam. Penelitian ini bertujuan untuk mempelajari peluang beberapa ekstrak dari tumbuhan sehingga dapat dimanfaatkan sebagai inhibitor korosi berdasarkan nilai laju korosi dan efesiensi inhibisi. Tumbuhan yang digunakankan adalah buah naga merah (Hylocereus polyrhizus) dan daun trembesi (Samanea saman (Jacq.). Sampel ujinya berupa plat baja hitam A36 berdimensi 3 cm x 1,5 cm x 1,14 mm, dan medium korosif asam klorida (HCl) 3%. Variasi kosentrasi ekstrak inhibitor untuk masing-masing bahan yang ditambahkan ke dalam medium korosif HCl 3% sebesar 2, 4, 6, 8 dan 10 mL. Perhitungan laju korosi menggunakan metode kehilangan berat (weightloss). Dari hasil penelitian, nilai laju korosi terendah untuk inhibitor ekstrak kulit buah naga merah terdapat pada penambahan inhibitor 10 mL sebesar 0,0463 cm/yr dengan efisiensinya 91,89 %. Sedangkan nilai laju korosi terendah untuk inhibitor ektrak daun trembesi terjadi pada penambahan inhibitor 10ml sebesar 0,0066 cm/year dengan efisiensi 98,9 %. Dari hasil penelitian tersebut dapat disimpulkan bahwa kulit buah naga merah dan daun trembesi mampu menurunkan laju korosi yang terjadi pada baja, sehingga memiliki peluang alternatif untuk dijadikan sebagai inhibitor organik.
Characterization of ZnO Nanoparticles Prepared in Curcuma Aromatica Salisb. Root Extract Abdul Kareem Thottoli; Ameera P.I.; Ajitha P.; Vrinda C.; Karamunnisa K.; Thamanna Shaharbanu M.H.; Sajna T.P.; Arshadha K.T.; Islam M Al-Akraa; Ahmad M. Mohammad; Chandramohan S.
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v12i1.40934

Abstract

The root extract of the locally available Curcuma Aromatica Salisb. was used with the ZnO precursors to study the effect of the Curcuma Aromatica Salisb.  extract on the growth and optical absorption behaviour of the ZnO nanoparticles. ZnO nanoparticles were synthesized in various concentrations of Curcuma Aromatica Salisb. root extract. X-ray diffraction studies show that the prepared samples consist of nanocrystallites of having sizes in the range between 17 nm to 26 nm. The optical absorption studies reveal that the eco-dying on ZnO nanoparticles using Curcuma Aromatica Salisb. root extract has enhanced the optical absorption behaviour of ZnO to the visible region of the spectrum.
Identifikasi Dugaan Situs Purbakala Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner di Situs Alassumur, Kabupaten Bondowoso Juan Pandu Gya Nur Rochman; Amien Widodo; Thufeil Amr Adausy; Hanif Dhiyaz Ulhaq F
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v12i1.54349

Abstract

Penemuan struktur batubata kuno di Desa Alas Sumur, Kecamatan Pujer Kabupaten Bondowoso menjadi menarik untuk diteliti, karena selama ini Kabupaten Bondowoso umumnya berupa peninggalan zaman batu besar yaitu Situs Megalithikum. Tujuan penelitian ini adalah untuk identifikasi struktur batu bata di situs tersebut. Metode yang digunakan adalah metode geolistrik konfigurasi wenner yang dapat menggambarkan kondisi bawah permukaan dan dugaan stuktur batu bata berdasarkan perbedaan nilai resistivitas batuan. Jumlah Lintasan pengukuran sebanyak 4 lintasan, dengan panjang untuk lintasan 1,3, dan 4 sepanjang 48 meter dengan  spasi 1 meter sedangkan lintasan 2 sepanjang 96 meter dengan spasi 2 meter. Data hasil pengolahan berupa data penampang nilai resistivitas. Berdasarkan hasil pengolahan, didapatkan litologi batuan breksi, batuan andesit, dan lempung pasiran. Persebaran nilai resistivitas batuan breksi memiliki range nilai (34 – 101 Ωmeter), batuan andesit memiliki range (102 – 141 Ωmeter), batuan lempung pasiran memiliki range ( 26 – 33 Ωmeter), anomali terdeteksi dengan range nilai (19 - 25Ωmeter) sebagai batubata. Anomali tersebut terdapat pada lintasan 1, 3, dan 4. Penemuan anomali tersebut diharapkan dapat membantu pihak terkait untuk melakukan proses pengembangan selanjutnya.
Characterization of Magnetic Minerals of Iron Sand Pasia Nan Tigo Padang Beach Using X-Ray Diffraction (XRD) Ardilla Nofri Yuwanda; Riza Rahmayuni; Dwi Anisa Visgun; Anisa Rahmi; Hamdi Rifai; Letmi Dwiridal
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v12i1.51531

Abstract

The mineral extraction of iron sand from Pasia Nan Tigo Beach has been carried out. Iron sands in this area are widely spread and have decent potential but have not been used optimally. The iron sand of Pasia Nan Tigo Beach contains minerals that are indicated by the variation in susceptibility values of type 265.8×10-8m3/kg to 12,445.53×10-8m3/kg. Therefore, it is necessary to separate minerals from iron sand so that the minerals contained in them are known so that they are suitable for usability. The iron sand obtained is extracted using two magnets, namely a strong magnet and a weak magnet. The extraction results from iron sand still contain impurities to remove them, the sand is purified and then the sand extraction results are characterized using the XRD method. Content The type and structure of the mineral species found in the samples extracted from iron sand using strong magnets are Magnetite (Fe3O4) with Cubic structure, Hematite (α-Fe2O3) with Hexagonal structure, and Ilmenite (FeTiO3) with Hexagonal structure. While the use of weak magnets is Magnetite (Fe3O4) with Cubic structure, Hematite (α-Fe2O3) with Rhombohedral structure, and Ilmenite (FeTiO3) with Rhombohedral structure. Meanwhile, the non-magnetic mineral namely Quartz (SiO2), works as an impurity. The average crystal size using a strong magnet for PNT-B01 0-5 cm is 100.85 nm and a weak magnet is 49.36 nm, sample A06 30-35 cm uses a strong magnet of 88.25 nm and a weak magnet of 46, 80 nm, meanwhile sample B10 0-5 cm with a strong magnet of 109.22 nm and a weak magnet of 45.60 nm.

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