Applied Catalysis2022，Vol.30611.DOI:10.1016/j.apcatb.2022.121091

Synergy between cobalt and nickel on NiCo2O4 nanosheets promotes peroxymonosulfate activation for efficient norfloxacin degradation

Dong C.-L. Huang Y.-C. Xing B. Cai P. Zhang X. Zhang T. Yin G. Sun Y. Yang D. Zhao J. Chen S.
Applied Catalysis2022，Vol.30611.DOI:10.1016/j.apcatb.2022.121091
✕
  • NSTL
  • Elsevier

Synergy between cobalt and nickel on NiCo2O4 nanosheets promotes peroxymonosulfate activation for efficient norfloxacin degradation

Dong C.-L. 1Huang Y.-C. 1Xing B. 2Cai P. 3Zhang X. 3Zhang T. 3Yin G. 3Sun Y. 3Yang D. 3Zhao J. 4Chen S.5
扫码查看

作者信息

  • 1. Department of Physics Tamkang University
  • 2. Stockbridge School of Agriculture University of Massachusetts
  • 3. School of Environmental Science and Engineering State Key Laboratory of Bio-fibers and Eco-textiles Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles Qingdao University
  • 4. Institute of Coastal Environmental Pollution Control and Ministry of Education Key Laboratory of Marine Environment and Ecology Frontiers Science Center for Deep Ocean Multispheres and Earth System Ocean University of China
  • 5. State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Science
  • 折叠

Abstract

? 2022 Elsevier B.V.Developing an ultraefficient heterogeneous catalyst for peroxymonosulfate (PMS) activation at a wide pH range is a challenge. Herein, ultrathin NiCo2O4 nanosheets (NiCo2O4NS, ~1 nm), with the dominant exposure of (311) facet, was designed for PMS activation. The NiCo2O4NS/PMS system exhibited superior degradation of norfloxacin (NOR) over a wide pH range. The synergistic effects between Ni and Co were the dominant activation mechanism. Compared with Co3O4, NiCo2O4NS adsorb PMS through a unique “bridge” mode, where both Co and adjacent Ni interact with the same O atom in PMS, increasing the number of electron transfer for enhanced breakage of O[sbnd]O bond. NiCo2O4NS with high cycling stability, could reach 100% degradation of other typical pollutants, and showed higher degradation performance in actual wastewater. This work unveils the intrinsic origin of the superior activity of Co-Ni spinel oxides for PMS activation for the first time, and demonstrates its application potential for organic contaminants degradation.

Key words

Degradation/Heterogeneous Fenton-like catalysis/NiCo2O4 nanosheets/Norfloxacin/PMS activation

引用本文复制引用

出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量105
参考文献量67
段落导航相关论文