Synthesis and characterization of bentonite-SnO2 nanocomposite in supercritical water environment

Document Type : Original Articles

Authors

• Morteza Golmohammadi ¹
• Hadi Nasiri ²

¹ Department of chemical engineering, Faculty of mining, civil and chemical engineering , Birjand university of technology, Birjand, Iran.

² Department of materials engineering, Faculty of mechanics and materials engineering , Birjand university of technology, Birjand, Iran.

10.22067/jmme.2021.72981.1030

Abstract

In this research, the possibility of decorating SnO2 nanoparticles on bentonite as a support in supercritical water environment has been investigated. Synthesis process of bentonite-SnO2 nanocomposite was performed in a reactor made of L316 stainless steel with a volume of 20 ml. The synthesis temperature and the duration was 480 °C and two hours, respectively. The manufactured nanocomposite was evaluated by various analyzes such as X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to confirm the immobilization of SnO2 nanoparticles on the support. The specific surface area, size and volume of nanocomposite cavities were determined using BET analysis. The appearance of SnO2 peaks in the XRD spectrum of the nanocomposite confirmed the successful synthesis of nanoparticles on bentonite. The immobilization of SnO2 nanoparticles with a size of less than 15 nm on bentonite plates was confirmed according to SEM and TEM images. The produced nanocomposite possessed a specific surface area of 50.36 m2/g and a pore volume of 0.13 cm/g due to the presence of bentonite in its structure, which makes it suitable for use as a catalyst in various reactions.

Keywords

• Supercritical water
• Nanocomposite
• Bentonite
• SnO2
• Characterization

20.1001.1.20087462.1400.33.1.6.0

Main Subjects

• Synthesis of Materials

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References

1. مراجع

   1. Chavali, M. S., Nikolova, M. P., "Metal Oxide Nanoparticles and Their Applications in Nanotechnology”, SN Applied Sciences, Vol.1, No. 6, pp. 1-30. (2019).
   2. Dastan, D., "Effect of Preparation Methods on the Properties of Titania Nanoparticles: Solvothermal Versus Sol–Gel", Applied Physics A, 123, No. 11, pp. 1-13, (2017).
   3. Nkurikiyimfura, I., Wang, Y., Safari, B., Nshingabigwi, E., "Temperature-Dependent Magnetic Properties of Magnetite Nanoparticles Synthesized Via Coprecipitation Method", Journal of Alloys and Compounds, 846, pp. 156344, (2020).
   4. Nasiri, H., Khaki, J. V., Sabzevar, M. H., "Fast Prepared Ni-Al₂O₃ Nanocomposite through Solution Combustion Synthesis", Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 45, No. 8, pp. 1241-1244, (2015).
   5. Petrović, S., Rožić, L., Jović, V., Stojadinović, S., Grbić, B., Radić, N., Lamovec, J., Vasilić, R., "Optimization of a nanoparticle ball milling process parameters using the response surface method", Advanced Powder Technology,29, No. 9, pp. 2129-2139, (2018).
   6. Golmohammadi, M., Hassankiadeh, M. N., Zhang, L., "Facile Biosynthesis of SnO₂/ZnO Nanocomposite Using Acroptilon Repens Flower Extract and Evaluation of Their Photocatalytic Activity", Ceramics International,47, No. 20, pp. 29303-29308, (2021)
   7. Golmohammadi, M., Rahmati-Abkenar, M., Ghanbari, S., "A Facile Method for the Synthesis of Metal Oxide Nanoparticles in Supercritical Water: Optimized Procedure for Cerium Oxide", Journal of Cluster Science, In press, (2021).
   8. Li, X., Wu, Z., Wang, H., Jin, H., "Numerical Investigation of Heat Transfer Characteristics Between Two Particles and Supercritical Water", The Journal of Supercritical Fluids, 177, pp. 105327, (2021).
   9. Yoko, A., Aida, T., Aoki, N., Hojo, D., Koshimizu, M., Ohara, S., Seong, G., Takami, S., Togashi, T., Tomai, T., "Supercritical Hydrothermal Synthesis of Nanoparticles", Elsevier, Amesteram, pp. 683-689, ( 2018).
   10. Golmohammadi, M, Nasiri, H., "Synthesis and Characterization of CexZr1-xO2 Using Supercritical Water", Journal of Applied Research of Chemical-Polymer Engineering,3, No. 4, pp.3-12, (2020).
   11. Yang, X., Feng, Y., Xu, J., Jin, J., Liu, Y., Cao, B., "Numerical Study on Transport Properties of the Working Mixtures for Coal Supercritical Water Gasification Based Power Generation Systems", Applied Thermal Engineering, 162, pp. 114228, (2019).
   12. Sankar, M., He, Q., Engel, R. V., Sainna, M. A., Logsdail, A. J., Roldan, A., Willock, D. J., Agarwal, N., Kiely, C. J., Hutchings, G. J., "Role of the Support in Gold-Containing Nanoparticles as Heterogeneous Catalysts", Chemical reviews, 120, No. 8, pp. 3890-3938, (2020).
   13. Ndolomingo, M. J., Bingwa, N., Meijboom, R., "Review of Supported Metal Nanoparticles: Synthesis Methodologies, Advantages and Application as Catalysts", Journal of Materials Science, 55, No. 15, pp. 6195-6241, (2020).
   14. Mehrabadi, B. A., Eskandari, S., Khan, U., White, R. D., Regalbuto, J. R., "A Review of Preparation Methods for Supported Metal Catalysts", Advances in catalysis, 61, pp. 1-35, (2107).
   15. Ranjani, M., Al-Sehemi, A. G., Pannipara, M., Aziz, M. A., Phang, S.-M., Ng, F.-L., "SnO₂ Nanocubes/Bentonite Modified SPEEK Nanocomposite Composite Membrane for High Performance and Durable Direct Methanol Fuel Cells", Solid State Ionics, 353, pp. 115318, (2020).
   16. Farias, A. F. F., Torres, S. M., Longo, E., Jaber, M., Fonseca, M. G., Pontes, L. F. B. L., dos Santos, I. M. G., "ZnO/Bentonite Hybrids Obtained by a Simple Method of Synthesis and Applied as Catalyst for Biodiesel Production, Springer, Cham, pp. 1-25, (2021).
   17. Ameur, N., Ferouani, G., Belkadi, Z., Bachir, R., Calvino, J. J., Hakkoum, A., "A Novel Approach for the Preparation of Silver Nanoparticles Supported on Titanate Nanotubes and Bentonite-Application in the Synthesis of Heterocyclic Compound Derivatives", Materials Research Express, 6, No.12, pp. 125051, (2019).
   18. Zhirong, L., Uddin, M. A., Zhanxue, S., "FT-IR and XRD Analysis of Natural Na-Bentonite and Cu (II)-Loaded Na-Bentonite", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 79, No. 5, pp.1013-1016, (2011).
   19. Donohue, M., Aranovich G., "Classification of Gibbs Adsorption Isotherms", Advances in Colloid and Interface Science, 76, pp. 137-152, (1998).