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      https://www.ias.ac.in/article/fulltext/jcsc/129/09/1373-1380

    • Keywords

       

      Ordered mesoporous Al & #8322; O & #8323; ; vanadium; EISA; naphthalene oxidation; phthalic anhydride

    • Abstract

       

      The ordered mesoporous V-m- Al ₂O ₃ catalysts were successfully synthesized via a facile one-pot evaporation-induced self-assembly (EISA) strategy and applied in the liquid-phase oxidation of naphthalene with hydrogen peroxide in the presence of ascorbic acid as a reductant. The physicochemical properties of the catalysts were investigated using various techniques, like XRD, N₂ sorption, UV-Vis spectra, Raman spectroscopy, XPS, XRF and TEM. Small-angle XRD, N₂ sorption and TEM results show that mesoporous V-m- Al ₂O ₃ catalysts possess a highly ordered mesostructure with large surface areas and narrow pore-size distributions. Highangle XRD, UV-Vis spectra and Raman spectroscopy results indicate that VOx species were homogeneously incorporated in thematrix ofmesoporous Al ₂O ₃.The catalytic performance in the liquid oxidation of naphthalene with H ₂O ₂ over 8V-m- Al ₂O ₃ catalyst (naphthalene conversion 45.4% and phthalic anhydride selectivity 61.0%) was higher than other catalysts. The vanadium species incorporated in the 8V-m- Al ₂O ₃ sample were stable, and its catalytic stability was kept well even after repeated use for 5 times, which indicates a green and economical pathway for naphthalene degradation.

    • Author Affiliations

       

      ZHIWEI ZHOU1 YANG YU1 JUAN QIN2 JIAQI ZHANG1 FULIN CHENG1 WENLIANG WU1

      1. College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, People’s Republic of China
      2. Technology and Finance Service Center of Jiangsu Province, Productivity Center of Jiangsu Province, Nanjing 210042, People’s Republic of China
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    • Supplementary Material

       
  • Journal of Chemical Sciences | News

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