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Efficient photocatalysts from polymorphic cuprous oxide/zinc oxide microstructures

机译:高效的光催化剂来自多晶型氧化铜/氧化锌微观结构

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摘要

Pursuit of robust and cost-effective photocatalysts has been a persistent objective for environmental pollution problems. Polymorphic Cu2O/ZnO microstructures are successfully fabricated by a mild solution strategy. The integration of Cu2O with ZnO is a facile approach for creating and separating photoelectrons and holes, leading to the high photodegradation efficiency against methyl orange dye under simulated light irradiation. Detailed investigations are carried out by adjusting Cu2+/Zn2+ ratio to optimize the resultant morphology and therefore photocatalytic activity. 87.6% of methyl orange dyes have been photodegradated over 5.5 h-light irradiation. Notably, a pseudo cell comprising a Cu2O/ZnO photoanode, a Pt counter electrode, and a methyl orange aqueous solution is creatively designed to demonstrate the potential mechanism for photoelectrochemical reaction.
机译:追求强大且具有成本效益的光催化剂是对环境污染问题的持久目标。 通过温和的溶液策略成功制造多晶型Cu2O / ZnO微结构。 Cu2O与ZnO的整合是用于产生和分离光电子和孔的容易方法,导致模拟光照射下对甲基橙染料的高光降解效率。 通过调节Cu 2 + / Zn2 +比率来进行详细的研究以优化所得形态并因此进行光催化活性。 87.6%的甲基橙色染料已被光降解超过5.5 H光照射。 值得注意的是,创造性地设计包含Cu2O / ZnO光阳极,Pt对电极和甲基橙色水溶液的伪细胞,以证明光电化学反应的潜在机制。

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  • 来源
    《RSC Advances》 |2015年第16期|共8页
  • 作者单位

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Qingdao 266100 Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Qingdao 266100 Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Qingdao 266100 Peoples R China;

    Ocean Univ China Inst Mat Sci &

    Engn Qingdao 266100 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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