Sintesis dan Karakterisasi Microwave Absorbing Material Berbasis Ni-SiO2 dengan Metode Sol-Gel

Siti Wardiyati(1), Wisnu Ari Adi(2), Didin Sahidin Winatapura(3),

DOI: https://doi.org/10.15294/jf.v8i2.16975


(1) 
(2) 
(3) 

Abstract

Sintesis dan karakterisasi material Ni-SiO2 telah dilakukan secara sol-gel meggunakan prekursor Tri ethyl orthosilicate (TEOS), asam citrat dan nikel (II) nitrat. Penelitian ini bertujuan untuk mendapatkan bahan microwave absorber magnetik  yang mempunyai fasa tunggal, berukuran nano, bersifat magnetik dan menyerap gelombang elektro magnetik pada kisaran 8 -12 GHz. Untuk mencapai tujuan tersebut dilakukan sintesis  Ni-SiO2 secara sol-gel dengan variasi jumlah  ion Ni dari  0,5 - 1,25 g/25 mL TEOS. Karakterisasi Ni-SiO2 hasil sintesis dilakukan  dengan menggunakan alat X-raydiffraction (XRD) untuk analisis fasa, Fourier Transmission Infra Red (FTIR) untuk mengetahui jenis ikatan yang terjadi,  Vibrating Sample Magnetometer (VSM) untuk mengetahui sifat magnetik bahan yaitu koersivitas dan saturasi magnetik, Transmission Electron Microscope (TEM) untuk mengetahui struktur dan ukuran partikel, dan Vektor Network Analyzer (VNA) untuk mengetahui serapan gelombang suatu bahan. Dari hasil percobaan diperoleh  microwave absorbing material berbasis Ni-SiO2 dengan ukuran partikel < 10 nm, saturasi magnetik 0,0455 emu/g, koersivitas magnetik sebesar  0, 0738T, dan besarnya reflextion loss (RL) – 29,4 dB  pada 10,68 GHz. Nilai  reflextion loss (RL) – 29,4 dB  pada 10,68 GHz ini menunjukkan bahwa microwave absorbing material berbasis  Ni-SiO2 hasil sintesis mempunyai kemapuan menyerap gelombang hingga  97 %  pada frekuensi 10,68 GHz. Hasil tersebut dicapai  pada penambahan ion Ni sebesar 1,0 g/25 mL TEOS.

Keywords

Microwave absorbing materials, SiO2, nickel, sol-gel

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References

Azlina, H. N., Hasnidawani, J. N., Norita, H., and Surip, S. N. (2016). Synthesis of SiO2 Nanostructtures using sol-gel method. Acta Physica Polonica A, Vol:129

El-Kemaryn, M., Nagy, N., El-Mehasseb, I. 2013. Nickel oxide nanoparticles: Synthesis and spectral studies of interactions with glucose. Materials Science in Semiconductor Processing 16, pp.1747–1752

Fonseca, F. C., Goya, G. F., and Jardim, R. F., (2002). Superparamegnetism and magnetic properties of Ni nanoparticle embedded in SiO. Physical review B 66, 104406

Gao, H., & Junling, (2010). Nanoscale Silicon Dioxide prepared by solgel process, Modern Applied Science, 4(9), September 2010

Gunanto, Y. E., Jobiliong, E., Adi, W. A. (2016). Microwave Absorbing Properties of BaO.6 SrO 4 Fe12-z Mnz O19 (z=3) Material in Xband Frequencies. Journal of Mathematical and Fundamental Sciences, 48(1)55-65.

He, S., Zhang, L., He, S., Mo, L., Zheng, X., Wang, H., and Luo, Y. (2015). Ni/SiO2 Catalyst Prepared with Nickel Nitrate Precursor for Combination of CO2 Reforming and Partial Oxidation of Methane: Characterization and Deactivation Mechanism Investigation. Hindawi Publishing Corporation Journal of Nanomaterials Volume 2015, Article ID 659402, 8 pages http://dx.doi.org/10.1155/2015/659402

Il’ves, V. G., Zuev, M. G., Sokovnin, S. Y. (2015). Properties of Silicon Dioxide Amorphous Nanopowder Produced by Pulsed Electron Beam Evaporation, Journal of Nanotechnology Volume 2015, Article ID 417817, 8 pages

Khaleed, A. A., Bello, A., Dangbegnon, J. K. (2017). Effect of activated carbon on the enhancement of CO sensing performance of NiO, Journal of Alloys and Compounds. 694, 155-162

Kong, I., Ahmad, R. H., Abdullah, M. H., Hui, D., Yusoff, A. N., Puryanti, D. (2015). Magnetic and microwave absorbing properties of magnetite–thermoplastic natural rubber nanocomposites, Journal of Magnetism and magnetic materials, November 2015, 322(21): 3401-3409

Luo, G., Zhu, S., Zhao, J., Wang, Y. (2011). In situ synthesis of magnetic mesoporous silica via sol–gel process coupled with precipitation and oxidation. Particuology 9(1):56–62.

Luna-López* J. A., Carrillo-López, J. (2009). FTIR and photoluminescence of annealed silicon rich oxide films, Superficies y Vacío 22(1):11-14, marzo de 2009

Markimicrowave, www.markimicrowave.com. 215 Vineyard Court, Morgan Hill, CA 95037

MuÅ¡iÄ, B., ŽnidarÅ¡iÄ, A., and Venturini, P. (2011). Electromagnetic absorbing materials. Informacije MIDEM 41, 2, Ljubljana. UDK621.3:(53+54+621+66), ISSN0352-9045

Peng, K., Zhou, L., Hu, A., Tang, Y., Li, D. (2008). Synthesis and magnetic properties of Ni–SiO2nanocomposites. Materials Chemistry and Physics 15 September 2008, 111(1): 34-37

Pollock, T. M., and Tin, S. (2006). Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure, and Propertiesâ€. Journal of propulsion and power 22(2) March–April 2006

Wardiyati, S., Adi, W. A., and Deswita (2017). Synthesis and Characterization of Microwave Absorber SiO2 by Sol-Gel Methode. IOP Conf. Ser.: Mater. Sci. Eng. 202 012059.

Wardiyati, S., Fisli, A., and Yunasfi, 2017. Influence of catalyst concentration on characteristic of SiO2 synthesized by sol-gel method. Presented on MRS-INA C&C 2017, Yogyakarta 8-12 Oktober 2017

Wong, B., Wang, T., Chao, L. and Li, F. (2011). Synthesis and Microwave Absorbing Properties of Ni/SiO2Core/Shell Particle, Advanced Materials Research. Vol:160-162, pp. 945-950

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