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首页> 外文期刊>Materials Chemistry and Physics >Microwave hydrothermal synthesis of Bi_2Fe_4O_9 crystals with visible light photocatalytic activity
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Microwave hydrothermal synthesis of Bi_2Fe_4O_9 crystals with visible light photocatalytic activity

机译：微波水热法合成具有可见光催化活性的Bi_2Fe_4O_9晶体

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摘要

Bi_2Fe_4O_9 crystals were successfully prepared via a rapid and facile microwave hydrothermal (MH) process. The influences of the various preparation parameters (including the NaOH concentration, and holding time) on the phase formation and morphology development were investigated in detail. XRD results showed that Bi_2Fe_4O_9 crystal was formed indirectly with an intermediate phase of Bi_(25)FeO_(40) in the MH process, whose further formation mechanism was discussed based on the morphology development. Moreover, the photocatalytic efficiencies of Bi_2Fe_4O_9 products obtained at the different holding times were evaluated by the degradation of methyl orange under visible light irradiation. It was found that the photocatalytic activities were greatly dependent on the holding time.
机译：Bi_2Fe_4O_9晶体是通过快速简便的微波水热（MH）工艺成功制备的。详细研究了各种制备参数（包括NaOH浓度和保持时间）对相形成和形态发展的影响。 XRD结果表明，在MH过程中，Bi_2（25）FeO_（40）的中间相间接形成了Bi_2Fe_4O_9晶体，并根据形貌发展探讨了其进一步的形成机理。此外，通过在可见光照射下甲基橙的降解来评估在不同保持时间下获得的Bi_2Fe_4O_9产物的光催化效率。发现光催化活性很大程度上取决于保持时间。

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  • 来源
    《Materials Chemistry and Physics》 |2012年第3期|474-478|共5页
  • 作者

    ZhangSheng Liu; BianTao Wu; YaBo Zhu;

  • 作者单位

    School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China;

    School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China;

    School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    chemical synthesis; bismuth ferrite; microwave hydrothermal; nucleation; photocatalytic activity;

    机译：化学合成铁酸铋微波热液成核光催化活性;

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