EKSTRAKSI DAN SINTESIS NANOSILIKA BERBASIS PASIR BANCAR DENGAN METODE BASAH
DOI:
https://doi.org/10.26740/jpfa.v3n2.p12-17Keywords:
nanosilika, pasir bancar, amorf, quartzAbstract
Pemurnian, ekstrak dan sintesis nanosilika dari bahan dasar pasir kuarsa yang diambil di daerah Bancar Tuban (utara Pulau Jawa-Indonesia) telah dilakukan pada penelitian ini. Secara fisik pasir Bancar Tuban mempunyai bentuk butiran agak kasar dan berwarna kuning cerah. Pasir Bancar mempunyai unsur atom Si (69%Wt), dan unsur atom pengotor dominan adalah Ca (7,5%wt) dan K (4,8%wt). Pola difraksinya menunjukan intesistas dominan terjadi pada sudut (2 theta) ~26o, fase quartz (paling stabil di alam). Ukuran serbuk pasir yang telah dihaluskan sekitar 5-50 mikrometer. Sintesis nanosilika berbasis pasir alam digunakan metode basah, yang terdiri dari dua proses, yaitu: (1) serbuk pasir diproses dengan metode hidrotermal dengan menggunakan senyawa alkali (NaOH) dengan molaritas 7M, hingga diperoleh larutan bening sodium silikat (Na2O.xSiO2), dan (2) larutan sodium silikat berperan sebagai prcursor diproses dengan metode co-presipitasi, larutan sodium silikat dititrasi dengan HCl 2 M hingga diperoleh bubur silicite Si(OH)4. Produk akhir berupa serbuk silika dengan struktur amorf dan kristal (quartz); kemurnian (%Wt Si) mencapai 95,7% dan analisis marfologi menunjukan bahwa partikel SiO2 cenderung membentuk aglomerasi dan ukuran partikel yang tidak beraglomerasi teramati berukuran sekitar ~58 nm.References
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Jerzy Chruściel, L. Ś. (2003). "Synthesis Of Nanosilica By The Sol-Gel Method And Its Activity Toward Polymers." Materials Science 21 (4)(Nano Silica): 7.
Nuntiya, N. T. A. A. (2008). "Preparation Of Nanosilica Powder From Rice Husk Ash By Precipitation Method." Chiang Mai J. Sci. 2008; 35(1) : 206-211 35 (1)(Nano Silica): 6..
Morri, Heditsugu. Extraction of Silicon Dioxide from Waste Colored Glasses by Alkali Fusion Using Sodium Hydroxide. Journal of The Ceramic Society of Japan.111 (6).(2003): 376-381.
Morri, Heditsugu. Extraction of Silicon Dioxide from Waste Colored Glasses by Alkali Fusion Using Potasium Hydroxide. Journal of The Ceramic Society of Japan.38 2003): 3461-3468.
M. Waseem, S. Mustafa, A. Naeem, K. H. Shah, Irfan Shah And Ihsan-Ul-Haque: Synthesis And Characterization Of Silica By Sol-Gel Method. J Pak Mater Soc 2009 3 (1)
Munasir, Ahmad Mirwan Abdullah, Triwikantoro, 2010. Sintesis Silika Amorf Dari Bahan Alam Lumpur Sidoarjo dengan Metode Kopresipitasi, Prosiding Seminar Nasional UNNES Semarang.
Munasir, Sulton A, Triwikantoro, M. Zainuri, Darminto., (2013). Synthesis of Silica Nanopowder from Slopeng Natural Sands via Alkalifussion Route., AIP Conf. Proc. 1555, 28 (2013); doi: 10.1063/1.4820986
P.K. Jal , M. Sudarshan, A. Saha, Sabita Patel, B.K. Mishra ,. (2004). "Synthesis and characterization of nanosilica prepared by precipitation method." Colloids and Surfaces A: Physicochem. Eng. Aspects 240: 6.
Samsudin Affandi, Heru Setyawan , Sugeng Winardi, Agus Purwanto , Ratna Balgis . A Facile Method For Production Of High- Purity Silica Xerogels From Bagasse Ash. Advanced Powder Technology 20 (2009) 468472
Van, Hoek., Winter, R., 2002. œAmorphous silica and the intergranular structure of nanocrystalline silica . Phys Chem Glass 43C 80.
Yasuhiko Arai, Hiroyo Segawa ,Kazuaki Yoshida. Synthesis Of Nano Silica Particles For Polishing Prepared By SolGel Method. Journal Of Sol-Gel Science And Technology 32, (2004) 7983
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2013-12-14
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Munasir, M., Triwikantoro, T., Zainuri, M. and Darminto, D. (2013) “EKSTRAKSI DAN SINTESIS NANOSILIKA BERBASIS PASIR BANCAR DENGAN METODE BASAH”, Jurnal Penelitian Fisika dan Aplikasinya (JPFA), 3(2), pp. 12–17. doi: 10.26740/jpfa.v3n2.p12-17.
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