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

  • Maaz Nawab
  • Sunita Barot
  • Rajib BandyopadhyayEmail author
Regular Article


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


Nano-sized Silicalite-1 toluene oxidation liquid phase zeolite 


Supplementary material

12039_2018_1579_MOESM1_ESM.pdf (96 kb)
Supplementary material 1 (pdf 95 KB)


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Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  1. 1.Department of Science, School of TechnologyPandit Deendayal Petroleum UniversityGandhinagarIndia

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