Duygu YEŞİLTEPE ÖZÇELİK, Sebahattin GÜRMEN

NiO/ZnO Nanokompozit Partiküllerinin Sol-Jel Tekniği İle Üretimi

Son yıllarda yeni nesil ve kritik malzemelere duyulan ihtiyaç, nano boyutlu malzemeleri modern araştırmaların odağına taşımıştır. Bu çalışmada, petrokimya ve enerji sektöründeki kullanımına yönelik olarak NiO/ZnO nanokompozit partiküllerin sol-jel yöntemiyle üretimi araştırılmıştır. Yüksek safiyetteki nikel nitrat [Ni(NO3)2.6H2O] ve çinko nitrat [Zn(NO3)2.6H2O] tuzlarından molce % (50:50) ve % (30:70) hazırlanan 0,1 M konsantrasyona sahip başlangıç çözeltilerinde farklı çöktürme reaktifleri (1 M NaOH; NH4OH) ve şelat yapıcının (0,1 M C6H8O7) birlikte kullanılmasıyla başlayan üretim sürecinin son adımındaki kalsinasyon işlemi (700 °C, 2 saat) ile NiO/ZnO nanokompozit partikülleri üretilmiştir. NiO/ZnO nanokompozit partiküllerinin yapısal karakterizasyon çalışmaları kapsamında; X-ışınları faz analizi (XRD, Rigaku), partiküllerin boyut-morfolojilerinin ve bileşimin kalitatif olarak tanımlanması için taramalı elektron mikroskobu ve enerji dağılım spektroskopisi (FEG SEM-EDS, Jeol) ve yapıda var olan bağların tespiti için Fourier dönüşümlü kızılötesi spektrometre (FTIR) teknikleri kullanılmıştır. Sol-gel yönteminde, başlangıç çözeltisinin stokiometrisi ile üretim aşamasında kullanılan çöktürme reaktifinin NiO/ZnO nanokompozit partikül üretimindeki etkisi incelenmiştir.

Anahtar Kelimeler:

Nanokompozit, NiO/ZnO, Sol-Jel

Production of NiO/ZnO Nanocomposite Particles by Sol-Gel Technique

In recent years, the need for new generation and critical materials has brought the nanoscale materials to the center of modern research. In this study, the production of NiO/ZnO nanocomposite particles by sol-gel method was investigated for using in the petrochemical and energy sectors. In the initial solutions having a 0.1 M concentration prepared from the high purity nickel nitrate [Ni(NO3)2.6H2O)] and zinc nitrate [(Zn(NO3)2.6H2O] salts in mol (50:50)% and (30:70)%, NiO/ZnO nanocomposite particles were produced by the calcination process (700 °C, 2 hours) in the final step of the production process, which started with the use of different precipitation reagents (1 M NaOH; NH4OH) and chelating agent (0.1 M C6H8O7). Within the scope of structural characterization studies of NiO/ZnO nanocomposite particles: phase analysis by X-ray diffractometry (Rigaku, XRD); the size and morphology and to determine the qualitative proportions of the contained elements of the particles with scanning electron microscopy and energy dispersive spectroscopy (Jeol FEG SEM-EDS); and Fourier Transform Infrared Spectrometry (Bruker/Alpha-T) to determine the bonds that were present, was used. In the sol-gel method, the effect of the stoichiometry of the prepared starting solution and the precipitation reagent used in the production step on NiO/ZnO nanocomposite particle production were investigated.

Keywords:

Nanocomposite, NiO/ZnO, Sol-Gel Technique,

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[1] Dahman, Y., Javaheri, H., Chen, J., Alchikh-Sulaiman, B. (2017). DOI: 10.1016/B978-0-323-51256-5.00005-8 In book: Nanotechnology and Functional Materials for Engineers Chapter 5, 93-119.
[2] Shin, W.-K., Cho, J., Kannan, A.G., Lee, Y.-S., Kim, D.-W. (2016). Cross-linked composite gel polymer electrolyte using mesoporous methacrylate-functionalized SiO2 nanoparticles for lithium-ion polymer batteries. Sci. Rep. 6, 26332. http://dx.doi.org/10.1038/srep26332.
[3] Ibrahim Khan, Khalid Saeed, Idrees Khan (2017). Nanoparticles: Properties, applications and Toxicities, Arabian Journal of Chemistry, https://doi.org/10.1016/j.arabjc.2017.05.011.
[4] Yeşiltepe, D. (2017). NiO/ZnO ve NiO/ZnO/Al2O3 Nanokompozit Partiküllerinin Ultrasonik Sprey Piroliz (Usp) Yöntemiyle Üretimi (Yüksek lisans tezi). İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul.
[5] Yılmaz, S., McGlynn E., Bacaksız, E., Cullen, J., Chellappan, R. K. (2012). Structural, Optical and Magnetic Properties of Ni-doped ZnO Micro-rods Grown by The Spray Pyrolysis Method. Chemical Physics Letters, 526, 72-76.
[6] Kim, K. H., Yoshihara, Y., Abe, Y., Kawamura, M., Kiba, T. (2017). Morphological Characterization of Sphere-like Structured ZnO-NiO Nanocomposites with Annealing Temperatures. Materials Letters, Vol. 186, 364–367.
[7] K. Prasad, Anal K. Jha (2009). ZnO Nanoparticles: Synthesis and Adsorption Study. Natural Science Vol.1, No.2, 129-135.
[8] Yeşiltepe, D., Koç, İ., Gürmen, S. (2016). Ultrasonik Sprey Piroliz Tekniği: NiO/ZnO ve Ni/ZnO Nanokompozit Partiküllerinin Üretimi. Metalurji Dergisi, 182, 26-31.
[9] Dorneanu, P. P., Airinei, A., Olaru, N., Homocianu, M., Nica, V., Doroftei, F. (2014). Preparation and characterization of NiO, ZnO and NiO–ZnO composite nanofibers, by electrospinning method, Materials Chemistry and Physics, 148, 1029-1035.
[10] Hameed, A., Montini, T., Gombac, V., Fornasiero, P. (2009). Photocatalytic decolourization of dyes on NiO–ZnO nano-composites, Photochemical&Photobiological Sciences,8, 677-682.
[11] Juma, A. O., Matibini, A. (2017). Synthesis and structural analysis of ZnO-NiO mixed oxide nanocomposite prepared by homogeneous precipitation, Ceramics International, 43, 15424-15430.
[12] Chen, W. F., Wang, C. H., Sasaki, K., Marinkovic, N., Xu, W., Muckerman, J. T., Zhu, Y., Adzic, R. R. (2013). Highly active and durable nanostructured molybdenum carbide electrocatalysts for hydrogen production, Energy & Environmental Science 6, 943-951.
[13] Yan, X., Li, Z., Chen, R., Gao, W. (2008). Template Growth of ZnO Nanorods and Microrods with Controllable Densities, Crystal Growth & Design, Vol. 8, No. 7.
[14] El-Kemary, M., Nagy, N., El-Mehasseb, I. (2013). Nickel oxide nanoparticles: Synthesis and spectral studies of interactions with glucose, Materials Science in Semiconductor Processing, 16, 1747-1752.
[15] Shokry, H. H., Elkady, H., M. F., El-Shazly, A. H., Bamufleh, H. (2014). Formulation of Synthesized Zinc Oxide Nanopowder into Hybrid Beads for Dye Separation, Journal of Nanomaterials, 1-14.
[16] Sharma, A., Kumar, P.S. (2011), Synthesis and Characterization of NiO-ZnO Nano Composite, 3, 112-115.
[17] Alagiri, M., Ponnusamy, S., Muthamizhchelvan, C. (2012). Synthesis and characterization of NiO nanoparticles by sol–gel method, J Mater Sci: Mater Electron, 23, 728–732.