Login / Signup

Urchin-like hybrid nanostructures of CuO x /Fe 2 O 3 from Cu-mediated pyrolysis of Fe-MOFs for catalytic reduction of organic pollutants.

Min ZhangAihui CaoHeng ZhangYunlong ZhaoXintai SuLu WangRonglan WuChao Yang
Published in: Nanoscale (2022)
MOFs have been widely used as templates to design and construct catalysis materials, such as LDH, metal oxides, and carbon. Herein, we developed a Cu-mediated pyrolysis protocol for the synthesis of urchin-like CuO x /Fe 2 O 3 hybrid nanostructures using Fe-MOFs as the precursor. The hierarchical hybrids were composed of an inner CuO x -dispersed Fe 2 O 3 octahedral matrix covered with radially grown Fe 2 O 3 nanorods. This novel hierarchical hybrid nanostructure was generated likely due to the difference in the inward contraction rates between the Cu and Fe species during pyrolysis. Given the structural and compositional benefits, the urchin-like CuO x /Fe 2 O 3 hybrids exhibited outstanding catalytic activity for the chemical reduction of 4-nitrophenol (4-NP) and dyes. Besides, CuO x /Fe 2 O 3 was found to be highly catalytic in the reduction of 4-NP even after 30 consecutive runs, manifesting outstanding durability for continuous operation.
Keyphrases
  • metal organic framework
  • aqueous solution
  • sewage sludge
  • randomized controlled trial
  • municipal solid waste
  • gold nanoparticles
  • crystal structure
  • plant growth