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首页> 外文期刊>RSC Advances >Activation of peroxymonosulfate by metal (Fe, Mn, Cu and Ni) doping ordered mesoporous Co3O4 for the degradation of enrofloxacin
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Activation of peroxymonosulfate by metal (Fe, Mn, Cu and Ni) doping ordered mesoporous Co3O4 for the degradation of enrofloxacin

机译：用金属（Fe，Mn，Cu和Ni）掺杂有序介孔CO3O4的过氧键环酸酯用于苯甲酯降解的

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摘要

Various transition metals (Fe, Mn, Cu and Ni) were doped into ordered mesoporous Co3O4 to synthesize Co3O4-composite spinels. Their formation was evidenced by transmission electronic microscopy (TEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) analysis. It was found that Co3O4-composite spinels could efficiently activate peroxymonosulfate (PMS) to remove enrofloxacin (ENR) and the catalytic activity followed the order Co3O4-CuCo2O4 > Co3O4-CoMn2O4 > Co3O4-CoFe2O4 > Co3O4-NiCo2O4. Moreover, through the calculation of the specific apparent rate constant (k(sapp)), it can be proved that the Co and Cu ions had the best synergistic effect for PMS activation. The Co3O4-composite spinels presented a wide pH range for the activation of PMS, but strong acidic and alkaline conditions were detrimental to ENR removal. Higher reaction temperature could promote the PMS activation process. Sulfate radical was identified as the dominating reactive species in Co3O4-composite spinel/PMS systems through radical quenching experiments. Meanwhile, the probable mechanisms concerning Co3O4-composite spinel activated PMS were proposed.
机译：将各种过渡金属（Fe，Mn，Cu和Ni）掺杂到有序的介孔CO 3O4中以合成CO 3 O 4 - 复合尖晶石。通过传输电子显微镜（TEM），X射线衍射（XRD）和Brunauer-Emmett-Teller（BET）分析，它们的形成证明了它们的形成。发现CO 3 O 4 - 复合尖晶石可以有效地激活过氧氧键（PMS）以除去苯甲酯（ENROXACIN（ENR）和催化活性，然后呈催化活性，然后进行CO 3 O 4-CUCO2O4> CO3O4-COFE2O4> CO3O4-NICO2O4。此外，通过计算特定表观速率常数（K（SAPP）），可以证明CO和Cu离子对PMS活化具有最佳的协同效果。 Co3O4-复合尖晶石呈现宽的pH范围，用于激活PMS，但强酸性和碱性条件是有害的，以便除去。更高的反应温度可以促进PMS活化过程。通过自由基猝灭实验将硫酸盐自由基鉴定为CO3O4-复合尖晶石/ PMS系统中的主导反应物质。同时，提出了有关CO3O4-复合尖晶石活化PM的可能机制。

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  • 来源
    《RSC Advances》 |2018年第5期|共12页
  • 作者

    Deng Jing; Ya Chen; Ge Yongjian; Cheng Yongqing; Chen Yijing; Xu Mengyuan; Wang Hongyu;

  • 作者单位

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Technol Coll Civil Engn &

    Architecture 18 Chaowang Rd Hangzhou 310014 Zhejiang Peoples R China;

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