New use for succinylated sugarcane bagasse containing adsorbed Cu2+ and Ni2+ : efficient catalysts for gas-phase n-hexane and n-heptane oxidation reactions.
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2017
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This study describes the use of succinylated twice-mercerized sugarcane bagasse containing adsorbed
Cu2+ or Ni2+ ions from spiked aqueous solutions (2MSBA-Cu and 2MSBA-Ni) as heterogeneous catalysts
for the catalytic oxidation of n-hexane and n-heptane in gas phase. To the best of our knowledge, this
is the first study in which a spent adsorbent material based on lignocellulose biomass is used in the
catalytic oxidation of volatile organic compounds. The adsorbent and spent adsorbent materials were
characterized by FTIR, TGA and XRD. The amount of Cu2+ and Ni2+ adsorbed on 2MSBA was 0.49 and
2.49 mmol g−1, respectively. The catalysts were active for total oxidation of n-hexane and n-heptane,
even at low temperatures. 2MSBA-Cu exhibited higher catalytic activity than 2MSBA-Ni and surprisingly
their performances were comparable or superior to those of some catalysts reported in the literature,
including noble metal-based catalysts.
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Modified sugarcane bagasse, Heterogeneous catalysts, Spent adsorbent, Metal ion
Citação
BALZER, R. et al. New use for succinylated sugarcane bagasse containing adsorbed Cu2+ and Ni2+: efficient catalysts for gas-phase n-hexane and n-heptane oxidation reactions. Industrial Crops and Products, v. 97, p. 649-652, mar. 2017. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926669017300067>. Acesso em: 15 set. 2017.