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All Journal Jurnal Ilmiah Farmako Bahari Catalyx : Journal of Process Chemistry and Technology
Nenden Fauziah
Department Of Chemistry, Faculty Mathematics And Science, Universitas Garut
Biochemistry, Genetics & Molecular Biology Chemistry Health Professions Medicine & Pharmacology

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STUDI PENDAHULUAN KOMPUTASI SEMI EMPIRIK SENYAWA OPTIK NON LINIER Nenden Fauziah
Jurnal Ilmiah Farmako Bahari Vol 7, No 1 (2016): Jurnal Ilmiah Farmako Bahari
Publisher : Fakultas MIPA Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.698 KB) | DOI: 10.52434/jfb.v7i1.384

Abstract

Senyawa optik non linier merupakan senyawa yang dapat mengubah frekuensi, fase, dan besaran lain dari gelombang yang melewatinya. Sebagai contoh, sinar laser ruby yang dilewatkan pada material optik nonlinier dapat berubah menjadi sinar ultra ungu. Sifat ini sangat penting terutama sejak digunakannya cahaya untuk pemrosesan dan penyimpanan data. Senyawa organik dengan elektron  terkonjugasi diidentifikasi sebagai struktur yang dapat menyediakan kenoninieran optik yang besar. Tujuan penelitian ini adalah mengkaji senyawa optik nonlinier dengan menggunakan metode semiempirik untuk mengusulkan penjelasan awal terhadap perilaku optik nonlinier. Metode extended Huckel digunakan untuk pengkajian awal sifat senyawa optik nonlinier. Usulan cara peramalan sifat optik nonlinier dengan besaran alternasi panjang ikatan dari Hochan Lee, dkk juga dikaji dalam penelitian ini. Hasil komputasi menunjukkan kesesuaian secara kualitatif terhadap hasil percobaan dan terhadap pola struktur. Dalam batas – batas tertentu, besaran alternasi panjang ikatan dapat menunjukkan sifat optik nonlinier. Kata kunci : Senyawa Optik Non Linier, Komputasi, Semi Empirik
PEMANFAATAN KAYU BATANG JAMBU BOL (Syzygium malaccense (L). Merr. & Perry) SEBAGAI SUMBER ANTIOKSIDAN BARU Nenden Fauziah; Noviyanti Noviyanti; Iqbal Musthapa
Jurnal Ilmiah Farmako Bahari Vol 10, No 1 (2019): Jurnal Ilmiah Farmako Bahari
Publisher : Fakultas MIPA Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.435 KB) | DOI: 10.52434/jfb.v10i1.522

Abstract

Penelitian tentang pemanfaatan kayu batang jambu bol (Syzygium malaccense)sebagai sumber antioksidan baru telah dilakukan. Hasil skrining fitokimia menunjukkan simplisia mengandung senyawa flavonoid, fenol, saponin, alkaloid, tannin, kuinon dan steroid. Uji daya antioksidan terhadap ekstrak etanol kayu batang jambu bol (Syzygium malaccense) dilakukan dengan menggunakan metode DPPH(2,2 - diphenyl-1-picrihidrazil)dan menunjukkan nilai IC50 sebesar 40.12  0.06 ppm. Vitamin C yang digunakan sebagai pembanding menunjukkan nilai IC50 sebesar 4.07 ± 0.03 ppm. Kata kunci: Batang jambu bol, Syzygium malaccense, antioksidan, metode DPPH
Synergistic Carbon Mitigation through Electrification and Solvent Recovery in Process Intensification Frameworks Nenden Fauziah
Catalyx : Journal of Process Chemistry and Technology Vol. 2 No. 2 (2025): April 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v2i2.1331

Abstract

The chemical industry is under increasing pressure to decarbonize in response to global climate commitments and sustainability expectations. This study investigates the carbon reduction potential of electrification and solvent recovery within a Process Intensification (PI) framework, using a scenario-based analysis to model varying electricity emission factors and recovery efficiencies. The methodology combines Life Cycle Assessment (LCA), Techno-Economic Assessment (TEA), and Technology Readiness Level (TRL) evaluation to assess environmental performance and implementation feasibility. Results indicate that emission reductions are highly sensitive to electricity source, with low-carbon grids offering the greatest benefit. Electrification of thermal processes, when powered by renewable energy, significantly cuts greenhouse gas emissions, while solvent recovery contributes to waste minimization and material efficiency. Combined, these strategies produce synergistic effects, amplifying both environmental and economic benefits. However, diminishing returns in solvent recovery efficiency and high initial capital costs present challenges to widespread adoption. TRL assessments suggest that many technologies are near commercialization, though integration hurdles persist. The findings highlight the importance of policy incentives, regulatory frameworks, and stakeholder engagement in enabling PI adoption. This integrated approach offers a pathway for sustainable transformation in chemical manufacturing, aligning emission reductions with long-term economic viability.
Co-Authors Astri Senania, Astri Dhoni Anshar Nuari Iqbal Musthapa Marginingsih Setianingrum NFN Noviyanti