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All Journal POSITRON Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Fisika FLUX Info-Teknik Jurnal Penelitian Pembelajaran Fisika Spektra: Jurnal Fisika dan Aplikasinya Indonesian Physical Review Risalah Fisika Jurnal Fisika Indonesia Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Jernih : Jurnal Tugas Akhir Mahasiswa Journal of Banua Science Education Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Lontar Physics Today Jurnal Natural Scientiae SERIBU SUNGAI: Journal of Research and Community Service International Journal of Renewable Energy Development
Ninis Hadi Haryanti, Ninis Hadi
Program Studi Fisika, Universitas Lambung Mangkurat
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : POSITRON

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Potensi Nanokomposit Fe3O4@C dari Bijih Besi Sebagai Pendeteksi Kadar Glukosa Sadang Husain; Suryajaya Suryajaya; Ninis Hadi Haryanti; Tetti Novalina Manik; Rodiansono Rodiansono; Sepfina Monica Hutasoit; Agus Riyanto; Sudarningsih Sudarningsih
POSITRON Vol 9, No 2 (2019): November Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.126 KB) | DOI: 10.26418/positron.v9i2.32771

Abstract

Sintesis nanokomposit Fe3O4@C dari bijih besi Tanah Laut dan sumber karbon dari gula pasir telah dilakukan dengan menggunakan metode kopresipitasi dan metode hidrotermal. Penelitian dilakukan untuk mengetahui karakteristik Fe3O4@C berbahan bijih besi. Sebanyak 6 g bijih besi digunakan sebagai bahan baku pembuatan Fe3O4. FeSO4.7H2O digunakan sebagai sumber ion Fe2+. Sampel diaduk dengan menggunakan temperatur 70oC dengan kecepatan adukan 450 rpm. Karbon (C) disintesis menggunakan metode hidrotermal pada temperatur 300oC dengan menambahkan etilon glikol sebagai surfaktan. Sampel Fe3O4 dan C digabung pada suhu 250oC selama 30 menit dengan kecepatan 500 rpm. Sampel  Nanokomposit Fe3O4@C dikarakterisasi menggunakan Vibrating Sample Magnetometer, Fourier Transform Infrared, Transmission Electron Microscopy, serta elektrokimia. Dari penelitian, diperoleh nilai magnetisasi saturasi sebesar 24,82 emu/g, jenis ikatan yang terdapat dalam nanokomposit Fe3O4@C adalah ikatan Fe-O, C=O, C=N dan O-H, distribusi ukuran partikel dalam rentang 5 nm – 20 nm, dengan rata-rata ukuran partikel 12 nm, serta nilai sensitivitas 0,285 mA/ppm.
Synthesis of CdS Nanoparticles Using The Brimstone Suryajaya, Suryajaya; Safitri, Ayu; Suarso, Eka; Haryanti, Ninis Hadi; Manik, Tetti Novalina; Darminto, Darminto
POSITRON Vol 14, No 2 (2024): Vol. 14 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v14i2.77273

Abstract

This paper explains and demonstrates how to synthesize Cadmium Sulphide (CdS) nanoparticles (NPs) using brimstone. The brimstone is obtained from Ijen volcanic crater in East Java Indonesia and used as the source of sulfur gas (S2) instead of Na2S. The brimstone was crushed and dissolved in potassium hydroxide (KOH) solution while heated. Acetic acid (CH3COOH) was added, to release the S2 gas. The liquid-gas method was used to prepare the CdS colloid solution. In this study, the effect of variations in the concentration and volume of CH3COOH, temperature variation, and exposure time on the synthesis of colloidal solutions of CdS NPs will be investigated. The absorption edge of the CdS colloidal solution compared to the bulk material experienced a blue shift. This is the evidence of the formation of NPs in solution. It is confirmed by FTIR which shows a CdS absorption peak at 467 cm-1. The radius of CdS NPs was calculated using the Efros equation to obtain a result of approximately 2 nm. Particle size analyzer (PSA) provides a much larger particle size of 20.8 nm. It is assumed that the NPs were agglomerated. Several treatments given, such as varying the volume of CH3COOH, varying temperature, stirring, and varying synthesis time, did not affect the size of the NPs.  The cadmium sulfide produced would be used as photocatalist in water treatment application.
Co-Authors Agus Riyanto Akhmad Safi'i Anny Sulaswatty, Anny Arif Sholahuddin Asyiah, Nor Ayu, Futri Damayanti, Dian Khatimah Darminto . Dicky Audi Rahman Egi Agustian Erdiansyah Rezamela, Erdiansyah Ernawati Fahmi Fahmi Fahrunnisa, Hasiarni Fitriani Fitriani Ginanjar, Awal Hafiizh Prasetia, Hafiizh Hendris Hendarsyah Kurniawan, Hendris Hendarsyah Hendry Wardhana Henri Wardhana Henry Wardhana Henry Wardhana Herin Hutri Istyarini Husain, Sadang I Gusti Ngurah Krisna Wijaya Ida Ayu Putu Sri Widnyani Irma Rifina Irmawati Istyarini, Herin Hutri Khayanti, Yuni Sri Lies Banowati Manik, Tetti N. Manik, Tetti Novalina Mawaddatur Rahmah Maya, Safitri Meilina, Putri Michael William Sihombing Muhaemina, Maulanie Muhammad Rijal Bashri Muhammad Zaini Munir, M. Jiddan Mishbahul Nada Sofi Andini Najmi, M. Ikhwan Navisah, Saidatun Nilawati, Indah Nirtha Nopi Stiyati Prihatini Nova Annisa Nova Annisa, Nova Nur Hazizah Oktafiansyah, Rahmad Permitaria, Antung Purba, Santi Carolina Rahmat Basuki Rahmat Yunus Ramadhoni, Benni F Rifina, Irma Rijali Noor Rodiansono Rodiansono Rony Riduan Sadang Husain Saputra, Yoga Sari, Putri Sembiring, Rinawati Sepfina Monica Hutasoit Simon Sadok Siregar, Simon Sadok Sri Cahyo Wahyono Suarso, Eka Sudarningsih Sudarningsih Sudarningsih Sudarningsih Sudarningsih, Rusdiansyah Sukmana, M. Laily Qadry Surini Surini Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya, Suryajaya Suyidno Suyidno Taufik Hidayat Tetti Novalina Manik Totok Wianto Yudha Irhasyuarna Yulia Anggraini