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Nano-sized Silicalite-1: novel route of synthesis, metal impregnation and its application in selective oxidation of toluene

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Abstract

The novel route of synthesis and catalytic performance of nano-sized Silicalite-1 are presented. Nano-sized Silicalite-1 was initially obtained from a clear solution using sodium silicate as silica source and tetrapropylamonium hydroxide as a template. The effects of silica source on the product yield, purity, crystallization rate and crystallinity were investigated. Effect of seeds in the synthesis was also studied. Nucleation time decreased to 6 h from 24 h using 4% seed, with yield and crystallinity 70% and 90%, respectively. The catalyst was characterized by XRD, FE-SEM, TG, FITR and \(\hbox {N}_{2}\) adsorption–desorption techniques. Transition metals like Fe, Cu and Mo were impregnated by wet impregnation method. Cu-impregnated nano-sized Silicalite-1 was found to be highly active for the oxidation of toluene with \(\hbox {H}_{2} \hbox {O}_{2}\).

Graphical abstract

Synopsis Synthesis of nano-sized Silicalite-1, metal impregnation and its characterization by physicochemical technique are reported. Toluene oxidation using hydrogen peroxide and optimization of reaction parameters are explo

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Authors and Affiliations

  1. Department of Science, School of Technology, Pandit Deendayal Petroleum University, Raisan, Gandhinagar, Gujarat, 382 007, India

    Maaz Nawab, Sunita Barot & Rajib Bandyopadhyay

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  1. Maaz Nawab
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  2. Sunita Barot
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  3. Rajib Bandyopadhyay
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Correspondence to Rajib Bandyopadhyay.

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Nawab, M., Barot, S. & Bandyopadhyay, R. Nano-sized Silicalite-1: novel route of synthesis, metal impregnation and its application in selective oxidation of toluene. J Chem Sci 131, 2 (2019). https://doi.org/10.1007/s12039-018-1579-0

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