Catalytic oxidation of acetone and ethyl acetate over MnNi-based hydrotalcite-derived oxides

CHENG Yue; ZHAO Danya; ZHOU Jiti; ZHAO Ling

doi:10.13205/j.hjgc.202610014

Volume 44 Issue 10

Oct. 2026

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CHENG Yue, ZHAO Danya, ZHOU Jiti, ZHAO Ling. Catalytic oxidation of acetone and ethyl acetate over MnNi-based hydrotalcite-derived oxides[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(10): 133-142. doi: 10.13205/j.hjgc.202610014

Citation:

CHENG Yue, ZHAO Danya, ZHOU Jiti, ZHAO Ling. Catalytic oxidation of acetone and ethyl acetate over MnNi-based hydrotalcite-derived oxides[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(10): 133-142. doi: 10.13205/j.hjgc.202610014

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Catalytic oxidation of acetone and ethyl acetate over MnNi-based hydrotalcite-derived oxides

doi: 10.13205/j.hjgc.202610014

CHENG Yue¹,
ZHAO Danya¹,
ZHOU Jiti^1,2,
ZHAO Ling^{1
,
,}

1. College of Ecology and Environment, Inner Mongolia University, Hohhot 010031, China;
2. Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, Dalian University of Technology, Dalian 116024, China

Received Date: 2025-10-28
Available Online: 2026-11-10

Abstract

Abstract

A series of Mn_xNi_3-xAl-LDH precursors with various Mn∶Ni molar ratios were synthesized via a NaOH-Na₂CO₃ co-precipitation method， and the corresponding Mn_xNi_3-xAlO oxides were obtained after calcination. The catalytic oxidation performances of these catalysts for single and mixed acetone-ethyl acetate systems were systematically investigated. The results indicated that the Mn_2.5Ni_0.5AlO catalyst exhibited the best activity， with T₉₀ values of 197 ℃ for both acetone and ethyl acetate. In the mixed VOCs catalytic oxidation systems （acetone∶ethyl acetate = 1∶1，1∶2，2∶1，volume ratio）， the T₉₀ remained within 206 to 208 ℃， demonstrating excellent resistance to component interference. XRD and XPS analyses revealed that the synergistic effect between Mn and Ni， as well as the high proportion of Mn³⁺ （69.18%） and surface adsorbed oxygen （37.59%） of Mn_2.5Ni_0.5AlO catalyst， facilitated oxygen vacancy formation and oxygen mobility， thereby enhancing catalytic activity. In situ FTIR spectra indicated that acetone and ethyl acetate were oxidized via enolate and acetate/formate intermediates to CO₂ and H₂O， following similar mechanisms in both single and mixed systems. This work highlights the superior performance and stability of MnNi-based LDH-derived oxides in mixed VOCs oxidation， providing valuable insights for the development of cost-effective and high-efficiency catalysts.
- acetone,
- ethyl acetate,
- catalytic oxidation,
- in situ FTIR

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References(28)

References

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