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首页> 外文期刊>RSC Advances >Synthesis of CdS-loaded (CuC10H26N6)(3)(PW12O40)(2)for enhanced photocatalytic degradation of tetracycline under simulated solar light irradiation
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Synthesis of CdS-loaded (CuC10H26N6)(3)(PW12O40)(2)for enhanced photocatalytic degradation of tetracycline under simulated solar light irradiation

机译：Cds-Loaded（CUC10H26N6）（3）（PW12O40）（2）的合成，用于增强模拟太阳光照射下四环素的光催化降解

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摘要

Largely discharged and excreted medical pollutants pose huge threats to ecosystems. However, typical photocatalysts, such as the Keggin-typed H3PW12O40, can hardly degrade these hazards under visible-light due to their broad bandgap and catalytic disability. In this work, the visible light harvesting was enabled by combining macrocyclic coordination compound CuC(10)H(26)N(6)Cl(2)O(8)with H3PW12O40, and the resulting CuPW was loaded with CdS to reach robust catalytic ability to totally detoxify medicines. We prepared the CuPW-CdS composites through a facile precipitation method, and it showed excellent photocatalytic degradation for degrading tetracycline under visible-light irradiation. The (CuC10H26N6)(3)(PW12O40)(2)with 10 wt% load of CdS shows the highest performance and is similar to 6 times more efficient than the pure CuPW counterpart. The heterojunctional CuPW-CdS composites promote the separation of electrons and holes, and consequentially enhance photocatalytic activity. Thanks to migration of electrons from CdS to CuPW, the photocorrosion of CdS is prohibited, resulting in a high chemical stability during photocatalysis. In this work we design a new route to the multi-structural composite photocatalysts for practical applications in medical pollutant decontamination.
机译：在很大程度上排出和排泄的医疗污染物对生态系统构成了巨大威胁。然而，典型的光催化剂，例如Keggin类型的H3PW12O40，由于它们的宽带隙和催化残疾而几乎不会降低可见光下的这些危险。在这项工作中，通过将宏环配位化合物CUC（10）H（26）N（6）N（6）N（2）O（2）O（2））与H3PW12O40组合来实现可见光收获，并将所得柴布加载CD以达到稳健的催化剂能够完全排毒药物。我们通过容易沉淀法制备了CupW-CDS复合材料，并且它显示出优异的光催化降解在可见光照射下降解四环素。 （CUC10H26N6）（3）（PW12O40）（2）具有10wt％CD的CD表示最高性能，类似于纯CupW对应的效率的6倍。异质孔CupW-CDS复合材料促进了电子和孔的分离，并因此增强了光催化活性。由于从CD从CD迁移到Cupw，禁止CD的光腐蚀，在光催化期间导致高化学稳定性。在这项工作中，我们设计了用于多结构复合光催化剂的新途径，用于医疗污染物净化的实际应用。

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  • 来源
    《RSC Advances》 |2020年第61期|共8页
  • 作者

    Li Feng; Qiang Zhuomin; Chen Shunqiang; Wei Jianyu; Li Taohai; Zhang Dabin;

  • 作者单位

    Xiangtan Univ Coll Chem Key Lab Environm Friendly Chem &

    Applicat Minist Educ Xiangtan 411105 Peoples R China;

    Xiangtan Univ Coll Chem Key Lab Environm Friendly Chem &

    Applicat Minist Educ Xiangtan 411105 Peoples R China;

    Xiangtan Univ Coll Chem Key Lab Environm Friendly Chem &

    Applicat Minist Educ Xiangtan 411105 Peoples R China;

    China Tobacco Guangxi Ind Co Ltd Nanning 530001 Guangxi Peoples R China;

    Xiangtan Univ Coll Chem Key Lab Environm Friendly Chem &

    Applicat Minist Educ Xiangtan 411105 Peoples R China;

    Guizhou Univ Sch Mech Engn Guiyang 550025 Guizhou Peoples R China;

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