Kajian Awal Spektrum Serapan Senyawa Hasil Ekstrak Daun Kelor (Moringaoleifera L) Asal Kelompok USAha Bersama (Kub) Marungga Pah Meto Kabupaten Ttu

Viktorinus Salu • Bernandus Bernandus • Minsyahril Bukit
Journal article Jurnal Fisika • 2016

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(Bahasa Indonesia, 9 pages)

Abstract

A research of the preliminary study absorption spectrum of compounds of extract Moringa leaves (Moringa Oleifera L.) from Marungga Pah Meto Group TTU Regency has been done. The aims of this research are to determine the absorption coefficient value and energy gap value of compound of extract Moringa leaves. Moringa leaves powder was extracted by maseration method, then evaporated by evaporator, furthermore diluted with ethanol. These samples are made three concentration ( 100 ppm, 200 ppm, and 300 ppm )respectirely then analyzed using UV-Vis Spectrofotometer. Based on their absorption spectrum data analysis, absorption range of these samples with concentration are from 200 nm to 691 nm. Energy gap value is 1,79 eV and its absorption coefficient value is 170.4 m-1. Based on its energy gap value, compound of extract Moringa leaves from Marungga pah meto group TTU regency could be classified as semiconductor material group. Key words: Moringa Leaf, Absorption Spectrum, Absorption Coefficient, Energy Gap

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Jurnal Fisika

Jurnal Fisika is a 6 monthly publication, which contains articles from research from academics, r... see more