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All Journal Alchemy : Journal of Chemistry Jurnal Transportasi KOVALEN: Jurnal Riset Kimia Indonesia Chimica Acta Al-Kimia Walisongo Journal of Chemistry Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Dimasejati: Jurnal Pengabdian Kepada Masyarakat International Journal Of Science, Technology & Management (IJSTM) Journal Of Human And Education (JAHE) Edelweiss : Journal of Innovation in Educational Research
Alif, Alfiah
Departement Of Chemistry, Faculty Science And Technology, Sembilanbelas November Kolaka University, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Studi Teoritis Derivat 4,5-Difenil Imidazol Sebagai Inhibitor Korosi Besi dengan Teori Fungsi Kerapatan (DFT) Baari, Muhamad Jalil; Alif, Alfiah; Kurniawan, Muhammad Akbar S; Finarisnawati, Finarisnawati
Al-Kimia Vol 12 No 1 (2024): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v12i1.43475

Abstract

Corrosion is a severe problem in the petroleum industry. The use of corrosion inhibitors is an effort to reduce the corrosion rate on metal materials. This study used the computational chemistry approach to investigate the corrosion inhibition performances of 4,5-diphenyl imidazole and its derivatives with additional substituents, for instance, electron acceptors and electron donors. Geometry optimizations and calculations of molecular frontier orbital energies were conducted using density functional theory (DFT) in the aqueous phase. These frontier orbital energy values were used to determine other reactivity and stability parameters, such as band gap energy, electron affinity, ionization potential, chemical hardness, chemical softness, number of electron transfers, chemical potential, nucleophilicity, electrophilicity, electronegativity, back donation energy, and interaction energy. Electrostatic potential, Mulliken atomic charge, and theoretical inhibition efficiency of 4,5-diphenyl imidazole derivatives were also determined. Generally, the presence of electron donor substituents theoretically increases corrosion inhibitors. The 4,5-diphenyl imidazole with –NH2 substituent is a better derivative than others based on several reactivity and stability parameters due to adding adsorption centers. Therefore, it can increase the performance of 4,5-diphenyl imidazole as a corrosion inhibitor. The adsorption behaviors of 4,5-diphenyl imidazole and its derivatives on Fe(100) surfaces were investigated using molecular dynamics simulation. The binding energies of three types of inhibitors on the Fe surface of studied inhibitors followed the order: D–NH2 > 4,5-diphenyl imidazole (D) > D–NO2. This ranking obtained is consistent with the theoretical inhibition efficiency.
Sosialisasi dan Pelatihan Pembuatan Eco Enzyme dari Sampah Organik Rumah Tangga di Desa Tanailandu, Kabupaten Buton Tengah Megawati Megawati; Muhamad Jalil Baari; Faradisa Anindita; Alfiah Alif; Agusriyadin Agusriyadin; L.A. Na'ani; Firnayanti Mbuli; Nurmira Nurmira; Waangkaali; Warda Hairia; Muhammad Akbar S. Kurniawan; Yuli Fazira; Elisa Fitria Mukti; Inda Inda; Windi Indriani
Journal Of Human And Education (JAHE) Vol. 4 No. 3 (2024): Journal of Human And Education
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i3.993

Abstract

Kegiatan pengabdian kepada masyarakat (PkM) ini dilakukan sebagai upaya untuk meningkatkan pengetahuan dan keterampilan masyarakat dalam mengelola sampah organik yang berasal dari rumah tangga menjadi eco enzyme. Eco enzyme adalah cairan alami serbaguna hasil fermentasi dari campuran sisa sayuran/buah, gula, dan air. Kegiatan PkM dilakukan di desa Tanailandu Kecamatan Mawasangka Kabupaten Buton Tengah pada tanggal 01 Mei 2023, yang ditujukan kepada ibu rumah tangga yang tergabung dalam Kelompok Pemberdayaan Kesejahteraan Keluarga (PKK) Desa Tanailandu. Tujuan dari Pkm ini adalah untuk mentransfer pengetahuan dan teknik pengolahan sampah organik menjadi eco enzyme dan memotivasi masyarakat untuk berpartisipasi dalam pelestarian lingkungan. Pelaksanaan Pkm dilakukan melalui tiga tahapan yaitu observasi awal dan koordinasi dengan pemerintah Desa Tanailandu tentang pelaksanaan kegiatan, sosialisasi materi eco enzyme dan praktik pembuatan eco enzyme. Kegiatan PkM berlangsung dengan lancar yang ditandai dengan apresiasi dan antusiasme peserta ibu PKK Desa Tanailandu selama melaksanakan kegiatan pembuatan eco enzyme.
Pelatihan Asisten Praktikum Laboratorium Kimia Program Studi Kimia Fakultas Sains Dan Teknologi Universitas Sembilanbelas November Kolaka Alif, Alfiah; Megawati, Megawati; Anindita, Faradisa; Baari, Muhamad Jalil; Agusriyadin; La Na’ani; Kurniawan, Muhammad Akbar S.; Mubarak, Azhar Aras
Journal Of Human And Education (JAHE) Vol. 5 No. 1 (2025): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v5i1.2183

Abstract

Program Studi kimia merupakan salah satu program studi Fakultas Sains dan Teknologi di Universitas Sembilanbelas November Kolaka. Dalam pelaksanaan tridarma perguruan tinggi suatu perguruan tinggi ataupun prodi yang berada pada level operasional yang membutuhkan suatu kegiatan-kegiatan yang memberikan motivasi dalam memberikan arahan khususnya dalam melakukan penelitian. Pelatihan asisten praktikum ini kami lakukan dengan harapan mampu memberikan motivasi dan semangat kepada asisten dalam melaksanakan tugas sebagai asisten praktikum. Undang-undang Tahun 2012 mengatur tentang Pendidikan Tinggi mempunyai tujuan untuk mengembangkan potensi mahasiswa menjadi insan yang beriman, bertakwa kepada Tuhan yang Maha Esa, berakhlak mulia, sehat, berilmu, cakap, kreatif, mandiri, terampil, kompeten dan berbudaya untuk kepentingan bangsa dan negara. Adapun rangkaian acara kegiatan tersebut antara lain orientasi tata tertib laboratorium prodi kimia FST USN Kolaka, materi praktikum, pengenalan alat pelindung diri (APD), peralatan instrumen yang ada di laboratorium prodi kimia, pemaparan terkait sifat-sifat bahan yang umum digunakan di laboratorium serta mekanisme pelaksanaan praktikum. Pelatihan ini bertujuan untuk meningkatkan pengetahuan dan membekali asisten laboratorium dalam menjalankan tugas sebagai Asisten Praktikum Kimia
Study of the Main Dimensions of Fiberglass Fishing Boats in the Waters of South Buton Regency Azhar Aras Mubarak; Samaluddin; Alfiah Alif
Edelweiss : Journal Of Innovation In Educational Research Vol. 1 No. 1 (2023): Edelweiss : July 2023
Publisher : CV. Mitkom Indotama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62462/edelweiss.v1i1.6

Abstract

Availability of vessel design and capacity according to the wishes of fishermen groups on a small scale,especially in the area of South Buton Regency must be carried out. Taking into account the cost of makingships and the use of fiberglass materials, it is hoped that a ship design will be produced that is for accordancewith the wishes of the community. The main ship size study provides many options in choosing ships withdifferent characteristics but having almost the same ship volume. This study aims to identify and compareseveral main ship sizes that are designed and provide choices according to existing requirements. The resultsshowed that with a ship length of 7 m, width of 1.5 m, and of 0.72 m, the ship would have a resistance of 2.8kN, a power of 14.22 kW and a displacement of 1464 kg and a surface area of 226854.22 cm2. Meanwhile,with a ship length of 7.25 m, width of 1.5 m, and of 0.70 m, it will have a resistance of 2.9 kN, a power of 14.7kW and a displacement of 1474 kg and a surface area of 232578.12 cm2. Whereas with a ship length of 7.50 m,width of 1.5 m, and of 0.68 m it will have a resistance of 1.6 kN, a power of 15.22 kW and a displacement of1481 kg and a surface area of 238195.85 cm2.
Co-Authors Aferta, Lusi Agusriyadin, Agusriyadin Akrajas Ali Umar Alfonds Andrew Maramis Ali Aulia Ghozali Amalyah Febryanti Amalyah Febryanti Amalyah Febryanti Amalyah Febryanti Anatje Lihiang Andas, Netty Huzniati Arif Prasetya Benu, Marlon Jusak Rinaldy Dian Permana Dyah Iswantini Elisa Fitria Mukti Faradisa Anindita Febryanti, Amalyah Finarisnawati, Finarisnawati Firnayanti Mbuli Harianti Harianti Henny Purwaningsih Ibrahim, Akhmad Fadli Inda Inda Kurniawan, Muhammad Akbar S Kurniawan, Muhammad Akbar S. La Na’ani Maulidiyah Maulidiyah Megawati - Megawati Megawati Megawati, Megawati mubarak, azhar aras Muhamad Jalil Baari Muhammad Akbar S. Kurniawan Novik Nurhidayat Novik Nurhidayat Nurmira Nurmira Pomalingo, Moh Fikri Rahmawati Djunuda Salim Salim Samaluddin Samaluddin, Samaluddin Sarimuddin, Sarimuddin Siswara, I.M Sitti Chadijah Sri Mulijani Tri Marniati Waangkaali Warda Hairia Windi Indriani Yuli Fazira Yuvita Satriani Djuli