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li, huanxuan [Author]; Su, Liya [Author]; Zheng, Junting [Author]; Lou, Yucheng [Author]; Yang, Zongxiang [Author]; Wang, Chunhui [Author]; Xu, Shaodan [Author]; Zhou, Qingwei [Author]; Tang, Junhong [Author]; Huang, Mingzhi [Author]; Zhang, Yayun [Author]

Carbon-Based Cuco Nanospheres Derived from Mofs as Efficient Catalysts of Peroxymonosulfate for the Rapid Removal of Organic Pollutants

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  • Media type: E-Book
  • Title: Carbon-Based Cuco Nanospheres Derived from Mofs as Efficient Catalysts of Peroxymonosulfate for the Rapid Removal of Organic Pollutants
  • Contributor: li, huanxuan [VerfasserIn]; Su, Liya [VerfasserIn]; Zheng, Junting [VerfasserIn]; Lou, Yucheng [VerfasserIn]; Yang, Zongxiang [VerfasserIn]; Wang, Chunhui [VerfasserIn]; Xu, Shaodan [VerfasserIn]; Zhou, Qingwei [VerfasserIn]; Tang, Junhong [VerfasserIn]; Huang, Mingzhi [VerfasserIn]; Zhang, Yayun [VerfasserIn]
  • imprint: [S.l.]: SSRN, [2022]
  • Extent: 1 Online-Ressource (34 p)
  • Language: English
  • DOI: 10.2139/ssrn.4039377
  • Identifier:
  • Origination:
  • Footnote:
  • Description: Metal-organic frameworks (MOFs) have been demonstrated to be promising alternatives for wastewater treatment by activation of peroxymonosulfate (PMS), yet the stability has to be addressed and the mechanism also needs to be elucidated. In this study, carbon-based CuCo nanospheres (CuCoC) were prepared derived from bimetallic CuCo-MOF-74, which presented excellent stability with continuous five cyclic reaction. The CuCo@C exhibited an efficient catalytic performance towards PMS, whereas 100% removal efficiencies of oxytetracycline (OTC), tetracycline (TC), methylene blue (MB), and Orange G (OG) were achieved while 89.5% of phenanthrene (PHE) removal efficiency was obtained in 15 min with extremely low CuCo@C loading (40.0 mg/L). Experimental characterizations and Density functional theory (DFT) calculation suggested that synergistic effects between ≡Cu(II) and ≡Cu(I), Co(II) and Co(III), and the carbon-coated metal nanocrystals and carbon played a vital role in the heterogeneous activation of PMS and triggered the generation of SO4•−, ·OH and 1O2. The high Fukui nucleophilic (f−) index and quantitative structure-activity relationship (QSAR) indicated the preferred attack sites and toxicity reducing of OG, respectively. Moreover, main intermediate products of OG were detected and the possible degradation pathway was proposed. The excellent catalytic performance, reduced toxicity of pollutants, good stability and reusability of CuCo@C all suggested the great application potential in practical water treatment
  • Access State: Open Access