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All Journal Jurnal Riset Kimia Journal of Science and Applicative Technology Jurnal Pengabdian Masyarakat Bangsa
Mariyam Mariyam
Department Of Chemistry, Faculty Of Sciences, Institut Teknologi Sumatera
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Journal : Journal of Science and Applicative Technology

 1 
Synthesis, Characterization And Computational Studies Of Novel (E)-N-(3,4-Dimethoxybenzylidene)naphthalen-1-amine . Mariyam; B. F. Y. Serli; N. Adliani
Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.34 KB) | DOI: 10.35472/281457

Abstract

Novel (E)-N-(3,4-dimethoxybenzylidene)naphthalen-1-amine (DBNA) ligand has been synthesized by refluxing 1-naphthylamine and 3,4-dimethoxybenzaldehyde in methanolic solution for 5-6 hours. The obtained compound was characterized by UV-Vis, FT-IR and 1H-NMR. All the spectral data confirmed the structure of the ligand.
Activated Cassava Leaves As Low-Cost Adsorbent to Remove Dyes From Water Chairunnisa Chairunnisa; Yuni Lisafitri; Mariyam Mariyam
Journal of Science and Applicative Technology Vol 6 No 1 (2022): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/jsat.v6i1.771

Abstract

In this study, activated cassava leaves were prepared using NaCl (CLN) and KOH (CLK) as novel and low-cost materials for removing dyes from water. The prepared materials were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The adsorption experiments were carried out under different conditions of initial dye concentration (50 – 600 ppm), pH solution (4 – 10), and contact time (1 – 180 min) under room temperature. The adsorption kinetics has been studied using the pseudo-first and pseudo-second-order. The equilibrium isotherms have been analyzed using the Langmuir and Freundlich models. The adsorption kinetics of methylene blue onto activated cassava leaves follows a pseudo-second-order model. According to the isotherm study, the Langmuir model shows the best fitting results with the maximum adsorption capacity of 217.39 mg/g and 416.66 mg/g for cassava leaves that were activated by NaCl and KOH, respectively.
UJI AKTIVITAS ANTIBAKTERI EKSTRAK BUAH Rivina humilis L. TERHADAP Klebsiella pneumoniae DAN Escherichia coli mariyam mariyam
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.721 KB) | DOI: 10.35472/281477

Abstract

Rivina humilis L. is herbaceous bushy perennial plant found in shrubs. The fruit extract of Rivina humilis L. had experienced antibacterial activity against Klebsiella pneumoniae and Escherichia coli. The crude extract of nonpolar fraction (n-hexane) of Rivina humilis L. showed negative antibacterial activity towards Klebsiella pneumoniae and Escherichia coli whereas the methanolic extract has antibacterial activity with 12 mm of inhibition zone for Klebsiella pneumoniae and 10 mm for E.coli in 1 ppm concentration. Determination of MIC (Minimum Inhibitory Concentration) was conducted with variation of concentration (w/v) 1 ppm; 0.8 ppm; 0.6 ppm; 0.2 ppm; 0 ppm (negative control), and chloramphenicol (positive control). The result of MIC determination against Klebsiella pneumoniae showed that the width and the inhibition zone index in the minimum concentration (0.2 ppm) were 7 mm and 1.36, respectively. While towards E.coli, MIC determination exhibited positive result at 0.6 ppm with the width and the inhibition zone index were 8 mm and 1.78 respectively.
Co-Authors Agustina, Naela Ulya Aji, Abdul Anggoro , Rahma Wangga Dwi Anggraini , Adelfia Sylvi arif ashari Ayuwulanda, Aditya B. F. Y. Serli Chairunnisa Chairunnisa Clara L.A, Cindy Moyna Clara, Cindy Moyna Demi Dama Yanti Ghifari, M. Alvien Habibie , Luqmanul Hakim Hawa Purnama Celala Ary Cane I Putu Mahendra Indarto Indarto Muhammad Yogi Saputra N. Adliani Pratama , Yoga Anjas Putri , Agustin Hermaria Rahmat Kurniawan Rohadi, Rahmat Sitanggang , Sopan E. Solly Aryza Tati Suhartati Tuta, Gabriell Vanes Sabat Yoga Anjas Pratama Yuni Lisafitri