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

doi:10.1016/j.apcatb.2022.121091

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/124077

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題名:	Synergy between cobalt and nickel on NiCo2O4 nanosheets promotes peroxymonosulfate activation for efficient norfloxacin degradation
作者:	P. Cai;J. Zhao;X. Zhang;T. Zhang;G. Yin;S. Chen;C. L. Dong;Y. C. Huang;Y. Sun;D. Yang;B. Xing
日期:	2022-06-05
上傳時間:	2023-05-12 12:08:44 (UTC+8)
出版者:	Elsevier BV
摘要:	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 Osingle bondO 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.
關聯:	Applied Catalysis B: Environmental 306, 121091
DOI:	10.1016/j.apcatb.2022.121091
顯示於類別:	[電機工程學系暨研究所] 期刊論文

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