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首页> 外文期刊>Applied Surface Science >Preparation, characterization and visible-light-driven photocatalytic activity of a novel Fe(III) porphyrin-sensitized TiO2 nanotube photocatalyst
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Preparation, characterization and visible-light-driven photocatalytic activity of a novel Fe(III) porphyrin-sensitized TiO2 nanotube photocatalyst

机译：新型Fe（III）卟啉敏化的TiO2纳米管光催化剂的制备，表征及可见光驱动的光催化活性

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摘要

Iron(III) meso-tetra(4-carboxyphenyl) porphyrin (FeTCPP) loaded on the surface of TiO2 nanotubes (TNTs) has been successfully prepared through improved hydrothermal and heating reflux process. The new photocatalyst has been characterized and analyzed by TEM/EDS, BET, XRD, FT-IR, DRS, PL, XPS and EPR. The photocatalytic activity of FeTCPP/TNT nanocomposite was evaluated by the photodegradation of MB under visible light irradiation. The degradation results showed a purification of more than 90% MB in simulating wastewater, and confirmed that the prepared FeTCPP/TNT nanocomposite has acquired superior photocatalytic activitiy. The 6 times cycled results suggested the great stability of the photocatalyst. These results confirmed the FeTCPP played an important role in capturing photons and expanding the absorption wavelength to the visible light region, and the FeTCPP/TNT photocatalyst is also beneficial for the electron transfer and long-distance transmission, and could efficiently increase the separation of the electron-hole pairs, and accelerate the decomposition of organic pollutants. In addition, nano-sized structures can increase adsorption capability. (C) 2016 Elsevier B.V. All rights reserved.
机译：通过改进的水热和加热回流工艺已成功制备了负载在TiO2纳米管（TNTs）表面的铁（III）内四（4-羧基苯基）卟啉（FeTCPP）。通过TEM / EDS，BET，XRD，FT-IR，DRS，PL，XPS和EPR对新的光催化剂进行了表征和分析。 FeTCPP / TNT纳米复合材料的光催化活性通过MB在可见光照射下的光降解来评估。降解结果表明在模拟废水中可纯化90％以上的MB，并证实所制备的FeTCPP / TNT纳米复合材料具有优异的光催化活性。 6次循环结果表明该光催化剂具有很大的稳定性。这些结果证实了FeTCPP在捕获光子和将吸收波长扩展到可见光区域中起着重要作用，并且FeTCPP / TNT光催化剂也有利于电子转移和长距离传输，并可以有效地增加电子的分离。电子-空穴对，并加速有机污染物的分解。另外，纳米结构可以增加吸附能力。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2017年第ptab期|267-274|共8页
  • 作者

    Wei Meng; Wan Junmin; Hu Zhiwen; Peng Zhiqin; Wang Bing; Wang Huigang;

  • 作者单位

    Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China|Zhejiang Sci Tech Univ, State Key Lab Adv Text Mat & Mfg Technol, MOE, Hangzhou 310018, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, State Key Lab Adv Text Mat & Mfg Technol, MOE, Hangzhou 310018, Zhejiang, Peoples R China;

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

    Metalloporphyrin; TiO2 nanotube; Visible-light driven photocatalyst; Nanocomposite; Electron transfer;

    机译：金属卟啉;TiO2纳米管;可见光驱动的光催化剂;纳米复合材料;电子转移;

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