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All Journal JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Ernis Nor Fadila
Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Malang
Biochemistry, Genetics & Molecular Biology

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Isolasi Lignin dari Sekam Padi (Oriza Sativa L) Serta Pemanfaatanya Sebagai Adsorben Ion Cd(II) Yudhi Utomo; Ernis Nor Fadila
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p019

Abstract

Rice husk is an agricultural waste and contains lignin (20-25%). NaOH, ethanol and acetic acid solvents are commonly used solvents in lignin isolation because they produce sulfur-free and high purity lignin. Lignin has potential as an adsorbent due to the presence of hydroxyl groups and aromatic rings that can bind to metal ions. The purpose of this study was to find out the best solvent in isolating lignin from rice husks, the characteristics of lignin, and the ability of lignin from rice husks as an adsorbent of Cd (II) metal. The quantitative laboratory research conducted was lignin characterization using FTIR and SEM and test the ability of the adorbent to absorb Cd (II) ions using the AAS instrument. Lignin isolated using NaOH solvent is more effective and efficient because it produces large amounts of lignin compared to ethanol and acetic acid. The isolated lignin has an absorption band in the area of 3500-3200 cm-1, namely the O-H stretch and 1600 cm-1, namely the vibrations of the aromatic and has spherical surface morphology in SEM instrumentation. Lignin was applied as a Cd (II) adsorbent and had the greatest adsorption capacity of A and B at a concentration of 2.0 ppm.
Co-Authors Yudhi Utomo