PENGARUH KONSENTRASI LARUTAN HF PADA PROSES PREPARASI TERHADAP KADAR UNSUR BAHAN MAGNETIK PASIR BESI

Abraham Laurens Rettob*  -  Unmus Merauke, Indonesia
Martasiana Karbeka  -  Unmus Merauke, Indonesia

(*) Corresponding Author

Bahan magnetik (BM) pasir besi alam merupakan salah satu sumber adsorben magnetik. Selain BM, pasir besi alam juga mengandung bahan non-magnetik . Preparasi BM pasir besi dilakukan pada penelitian ini dengan tujuan untuk meningkatkan kadar unsur magnetik di dalamnya. Pasir besi alam yang digunakan berasal dari pesisir pantai Lansilowo. Preparasi dilakukan dengan pencucian menggunakan larutan HF dengan konsentrasi 0, 2, 5 dan 10%. Hasil analisis kadar unsur dengan XRF menunjukkan bahwa unsur dominan pada pasir besi Lansilowo adalah Fe dan Cr, yang merupakan unsur penyumbang sifat kemagnetan pada BM. Pencucian dengan larutan HF berbagai konsentrasi menyebabkan terjadinya perubahan kadar unsur pada BM. Semakin tinggi konsentrasi larutan HF mengakibatkan terjadinya peningkatan kadar Fe dan Cr total (89,56%) serta penurunan kadar Si (2,60%).  Hasil penelitian menunjukkan bahwa konsentrasi larutan HF optimum yang digunakan adalah 10%.

 

Keywords : bahan magnetik, larutan HF, pencucian

  1. Altun, T. 2019. Chitosan-Coated Sour Cherry Kernel Shell Beads: An Adsorbent for Removal of Cr(VI) from Acidic Solutions. J. Anal. Sci. 10(14), 1-10.
  2. Dognani, G., Hadi, P., Ma, H., Cabrera, F.C., Job, A.E., Agostini, D.L.S. dan Hsiao, B.S. 2019. Effective Chromium Removal from Water by Polyaniline-Coated Electrospun Adsorbent Membrane. Chem. Eng. J. 372, 341-351.
  3. Khatibikamal, V., Panahi, H.A., Torabian, A. dan Baghdadi, M. 2019. Optimized Poly(amidoamine) Coated Magnetic Nanoparticles as Adsorbent for the Removal of Nonylphenol from water. Microchem. J. 145, 508-516.
  4. Ma, Y., Mu, B., Zhang, X., Xu, H., Qu, Z., Gao, Li., Li, B. dan Juanjuan, T. 2019. Ag-Fe3O4@rGO Ternary Magnetic Adsorbent for Gaseous Elemental Mercury Removal from Coal-Fired Flue Gas. Fuel. 239, 579-586.
  5. Nuryono, Muliaty, E., Rusdiarso, B., Sakti, S.C.W. dan Tanaka, S. 2014, Adsorption of Au(III), Cu(II) and Ni(II) on Magnetite Coated with Mercapto Groups Modified Rice Hull Ash Silica. J.Ion Exchange. 25(4), 114-121.
  6. Nuryono, Rosiati, N.M., Rettob, A.L., Suyanta dan Arryanto, Y. 2019. Coating of 2-Aminobenzimidazole and 1-(o-Tolyl)biguanide Functionalized Silicas on Iron Sand Magnetic Material for Sorption of [AuCl4]. Indo. J. Chem. 19(2), 395-404.
  7. Prasdiantika, R. 2015. Sintesis Hibrida Propildietilentriamin-Silika Terlapis pada Bahan Magnetik Pasir Besi untuk Adsorpsi Au(III). Tesis, tidak dipublikasikan, Universitas Gadjah Mada.
  8. Rettob, A.L., Nuryono, N., Pasaribu, Y.P., Buyang, Y. dan Waremwa, R.S. 2018. Adsorption of [AuCl4] on Iron Sand Magnetic Material Coated with Aminnobenzimidazol Modified Silica. Atlantis Highlights in Engineering (AHE), 1, 277-280.
  9. Rott, E., Nouri, M., Meyer, C., Minkle, R., Schneider, M., Mandel, K. dan Drenkova-Tuhtan, A. 2018. Removal of Phosphonates from Synthetic and Industrial Watewater with Reusable Magnetic Adsorbent Particles. Water Res. 145, 608-617.
  10. Saksornchai, E., Kavinchan, J., Thongtem, S. dan Thongtem, T. 2018. Simple Wet-Chemical Synthesis of Superparamagnetic CTAB-Modified Magnetite Nanoparticles Using as Adsorbents for Anionic Dye Congo Red Removal. Mat. Lett. 15, 138-142.
  11. Sebastian, A., Nangia, A. dan Prasad, M.N.V. 2019. Cadmium and Sodium Adsorption Properties of Magnetite Nanoparticles Synthesized from Hevea brasiliensis Muell. Arg. Bark: Relevance in Amelioration of Metal Stress in Rice. J. Hazard. Mater. 371(5), 261-272.
  12. Tahar, L.B., Oueslati, M.H. dan Abualreish, M.J.A. 2018. Synthesis of Magnetite Derivatives Nanoparticles and Their Application for the Removal of Chromium(VI) form Aqueous Solutions. J. Colloid Interf. Sci. 512, 115-126.

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WJC: Walisongo Journal of Chemistry
Published by the Department of Chemistry
Faculty of Science and Technology
Universitas Islam Negeri Walisongo Semarang
Jl Prof. Dr. Hamka Kampus II Ngaliyan Semarang 50185
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Website: https://fst.walisongo.ac.id/
Email: wjc@walisongo.ac.id

ISSN: 2549-385X (Print)
ISSN: 2621-5985 (Online)

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

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