Nano-filler Co-nanoparticles embedded in a Silica aerogel matrix

International Journal of Nano Dimension

مقاله 2، دوره 12، شماره 4، دی 2021، صفحه 328-334   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.22034/ijnd.2021.682422

نویسندگان

Sapna Bakul Jadhav^{1، 2}؛ Arwa Makki³؛ Dina Hajjar³؛ Pradip Bhikaji Sarawade^{* 1}

¹Department of Physics, University of Mumbai, Kalina, Mumbai-400098, India.

²SDSM College, Palghar-401404, University of Mumbai, India.

³University of Jeddah, Collage of Science, Department of Biochemistry-80327, Jeddah, KSA.

چکیده

In present research, we synthesized cobalt-based silica nanocomposites (Co-SiO₂) from cobalt nitrate [Co(NO₃)₂] and tetraethoxysilane (TEOS) precursors by using a simple sol-gel method followed by supercritical drying techniques. The physicochemical and textual properties of the as synthesized nano composites were thoroughly investigated. The results indicated that the Co-SiO₂ aerogels demonstrated homogeneous dispersion cobalt nanoparticles within silica matrix with mesoporous morphology, large specific surface area (802 m²/g) and larger pore size (9 nm) with less volume shrinkage. The physico-chemical properties of the cobalt based silica nanomaterial were characterized by XRD, SEM, N₂ adsorption-desorption and FTIR techniques. Cobalt-based silica nanocomposites can be produced using TEOS-based precursor and supercritical drying techniques. The prepared (Co-SiO₂) nanocatalyst due to its magnetic nature with higher surface area (802 m²/g) can be utilized in many emerging fields such as catalysis, water desalination, water splitting, gas-sensing application and organic pollutant degradation.

کلیدواژه‌ها

Aerogel؛ Cobalt-Silica Nanocomposites؛ Nanocatalysts؛ Sol-gel Process؛ Supercritical Drying

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