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All Journal Jurnal Kreativitas PKM Jurnal Teori dan Aplikasi Fisika Journal of Energy, Material, and Instrumentation Technology
Simon Sembiring
Universitas Lampung
Astronomy Control & Systems Engineering Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health

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Studi Pendahuluan Pembentukan Gugus Fungsi dari Komposit Perak Silika (Ag/SiO2) Berbasis Sekam Padi Rifa Dian Eka Farah; Nur Fattiah Amanda; Simon Sembiring; Junaidi Junaidi
Jurnal Teori dan Aplikasi Fisika Vol. 10 No. 1 (2022): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v10i1.282

Abstract

Studi Pendahuluan Penentuan Nilai Energi Band Gap Komposit Perak Silika (Ag/SiO2) Berbasis Sekam Padi Desi Novitasari; Letha Agatha Lusiana; Simon Sembiring; Junaidi Junaidi
Jurnal Teori dan Aplikasi Fisika Vol. 10 No. 1 (2022): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v10i1.283

Abstract

KARAKTERISTIK STRUKTUR DAN TERMAL KOMPOSIT ASPAL KARBOSIL SILIKA SEKAM PADI Devi Yulianti; Simon Sembiring; Junaidi Junaidi
Jurnal Teori dan Aplikasi Fisika Vol. 10 No. 1 (2022): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v10i1.284

Abstract

Telah dilakukan sintesis dan karakterisasi aspal yang dimodifikasi dengan karbosil dan silika. Penelitian ini dilakukan untuk mengetahui mikrosuktur dan struktur komposit aspal karbosil silika dengan perbandingan komposisi berat yaitu 50:50:0; 42,5:42,5:15; 40:40:20; 37,5:37,5:25; 35:35:30; 32,5:32,5:35. Silika diperoleh dengan menggunakan metode alkalis dan karbosil diperoleh dengan metode pirolisis. Hasil analisis XRD diperoleh fasa yang terbentuk dari setiap variasi komposisi adalah fasa amorf. Analisis DTA/TGA menunjukkan terjadinya perubahan energi akibat penambahan panas dengan ditandai adanya penyusutan massa pada sampel. Variasi komposisi pada sampel menunjukkan terjadinya penurunan nilai pada kuat tekan, porositas dan perubahan ketebalan.
KARAKTERISTIK FUNGSIONALITAS DAN MIKROSTRUKTUR KOMPOSIT ASPAL-SILIKA-KARBOSIL Lady Permatasari; Simon Sembiring; Posman Manurung
Jurnal Teori dan Aplikasi Fisika Vol. 10 No. 1 (2022): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v10i1.286

Abstract

Synthesis and characterization of asphalt have been modified with silica and carbosil composite. This research was conducted to determine the functionality and microstructure of the asphalt-silica-carbosil composite with a weight composition ratio of 0:50:50; 15:42.5:42.5; 20:40:40; 25:37.5:37.5; 30:35:35; 35:32.5:32.5. Silica is obtained from rice husk using the sol gel method and carbosil was obtained by the pyrolysis method. The results of FTIR analysis obtained that the functional groups formed from each composition variation were O-H, C-H, C?C, C=O, Si-O-Si, and Si-O. The results of microstructural analysis showed the presence of lumps scattered on the surface. The composition of the elements formed is dominated by elements of C, Si, O, N, and a little Na, K and S. Variations in the composition of the sample indicate an increase in the density value, a decrease in the value of water absorption and hardness.Telah dilakukan sintesis dan karakterisasi aspal yang dimodifikasi dengan komposit silika dan karbosil. Penelitian ini dilakukan untuk mengetahui fungsionalitas dan mikrostruktur komposit aspal-silika-karbosil dengan perbandingan komposisi berat 0:50:50; 15:42.5:42.5; 20:40:40; 25:37.5:37.5; 30:35:35; 35:32.5:32.5. Silika diperoleh dengan menggunakan metode alkalis dan karbosil diperoleh dengan metode pirolisis. Hasil analisis FTIR diperoleh gugus fungsi yang terbentuk dari setiap variasi komposisi yaitu O-H, C-H, C?C, C=O, Si-O-Si, dan Si-O. Hasil analisis mikrostruktur menunjukkan adanya gumpalan yang mengindikasikan sebagai silika-karbosil yang tersebar di permukaan. Komposisi unsur yang terbentuk adalah didominasi unsur C, Si, O, N, dan sedikit Na, K dan S. Variasi komposisi sampel menunjukkan adanya peningkatan nilai densitas, penurunan nilai daya serap air dan kekerasan.
KARAKTERISTIK KOMPOSIT ASPAL KARBOSIL DARI LIMBAH SEKAM PADI liyana mardova; Simon Sembiring; Junaidi Junaidi
Jurnal Teori dan Aplikasi Fisika Vol. 11 No. 1 (2023): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v11i1.337

Abstract

In this study, the characterization of the carbosil asphalt composite was carried out with a composition variation of 1:9; 1.5:8.5; 2:8; 2.5:7.5; 3:7 and the ratio for pure carbosil without the addition of asphalt. Carbosil is obtained from rice husk waste by using the pyrolysis method. This research was conducted to determine the effect of temperature on the microstructure, structure and functional groups of carbosil asphalt composites. XRD analysis obtained that the phase formed from each composition variation was an amorphous phase. The DTA/TGA analysis shows that there is a change in energy due to the addition of heat, which is indicated by the presence of mass shrinkage in the sample. Compressive strength results indicate that the strength of the carbosil asphalt composite with different material compositions affects the resistance to cracking.
Pengaruh Pencampuran Etilen Glikol dan Propilen Glikol Terhadap Sifat Optik Kawat Nano Perak yang Disintesis Menggunakan Metode Polyol Syaifudin Syaifudin; Junaidi Junaidi; Simon Sembiring; Roniyus Marjunus
Jurnal Teori dan Aplikasi Fisika Vol. 11 No. 1 (2023): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v11i1.338

Abstract

Pengujian Gugus Fungsi Silika Berbasis Sekam Padi Dengan Variasi Suhu & Konsentrasi Cetyltrimethylammonium Bromide Sebagai Bahan Baku Mesoporous Silica Leni Rumiyanti; Catur Destiana; Ria Oktaviani; Simon Sembiring; Syafriadi Syafriadi; Ni Luh Gede Ratna Juliasih
Jurnal Teori dan Aplikasi Fisika Vol. 9 No. 2 (2021): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v9i2.357

Abstract

Co-Authors Agus Riyanto Catur Destiana Deafani Wahyu Ardaniswari Desi Novitasari Devi Yulianti Hana Haritsah Iqbal Firdaus Janariah Janariah Jessy Oktayulia Sari Josalina Josalina Junaidi Junaidi Lady Permatasari Leni Rumiyanti Letha Agatha Lusiana Letia Oktri Diana Mardova, Liyana Marjunus, Roniyus Ni Luh Gede Ratna Juliasih Nindy Elyta Mawarty Nur Fattiah Amanda Nurqori Setiawati Posman Manurung Pulung Karo-Karo Ria Oktaviani Rianggi Wahyuni Pratiwi Rifa Dian Eka Farah Rudi T.M Situmeang Rudy T M Situmeang Setiyaningsih Setiyaningsih Siti Isma Suprihatin Syafriadi Syafriadi Syaifudin Wasimton Simanjuntak Yanti Yulianti