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磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S

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高生旺, 郭昌胜, 吕佳佩, 候嵩, 张远, 王朝进, 高建峰, 徐建. 磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S[J]. 环境工程学报, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
引用本文: 高生旺, 郭昌胜, 吕佳佩, 候嵩, 张远, 王朝进, 高建峰, 徐建. 磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S[J]. 环境工程学报, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
shu
GAO Shengwang, GUO Changsheng, LYU Jiapei, HOU Song, ZHANG Yuan, WANG Chaojin, GAO Jianfeng, XU Jian. Preparation of magnetic BiOI/Fe3O4 and its application in photocatalytic degradation of bisphenol S in aqueous solution[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
Citation: GAO Shengwang, GUO Changsheng, LYU Jiapei, HOU Song, ZHANG Yuan, WANG Chaojin, GAO Jianfeng, XU Jian. Preparation of magnetic BiOI/Fe3O4 and its application in photocatalytic degradation of bisphenol S in aqueous solution[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
shu

磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S

  • 1.

    中北大学理学院, 太原 030051

  • 2.

    环境基准与风险评估国家重点实验室, 中国环境科学研究院, 北京 100012

  • 基金项目:

    国家自然科学基金资助项目（51208482）

Preparation of magnetic BiOI/Fe3O4 and its application in photocatalytic degradation of bisphenol S in aqueous solution

  • 1.

    Department of Chemistry, College of Science, North University of China, Taiyuan 030051, China

  • 2.

    State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • Fund Project:

  • 摘要: 利用简单的共沉淀法在室温条件下制备了磁性空心蜂窝状的BiOI/Fe3O4光催化剂，采用X射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、紫外-可见光漫反射谱仪（UV-vis）、N2吸附-解析BET技术和振动磁强计（VSM）等仪器对其进行表征，并在可见光下催化降解双酚S（BPS）。结果表明，催化剂量为1.0 g·L-1、pH为9.0时，对BPS的去除率最高，可见光照90 min，BiOI/Fe3O4复合光催化剂对BPS的去除率可达90.6%。反应结束后，复合光催化剂在外加磁场作用下从反应体系中分离，循环实验5次后，其光催化效率仍保持在85.0%以上，表现出良好的稳定性。降解过程主要包含羟基自由基和光生空穴的氧化作用。沉淀法制备BiOI/Fe3O4简单可靠，条件可控，所制备的BiOI/Fe3O4具有良好的应用前景。
    Abstract: A magnetic BiOI/Fe3O4 photocatalyst with a hollow honeycomb structure was prepared at room temperature by a facile coprecipitation method. The sample was characterized using a number of techniques including X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet-visible diffuse reflection spectroscopy, the Brunauer-Emmett-Teller method, and vibrating sample magnetometry. The composite photocatalyst was used for bisphenol S (BPS) degradation under irradiation with visible light. Results showed that BiOI/Fe3O4 exhibited the highest photocatalytic performance for BPS degradation when the catalyst dosage was 1.0 g·L-1 and the solution pH was 9.0, with 90.6% of BPS removed under visible light irradiation. After reaction, the composite photocatalyst could be easily separated from the reaction system using a magnetic field. After 5 cycles, the composite photocatalyst retained a high catalytic ability, with more than 85.0% BPS being removed. The photogenerated reactive species were determined based on free radical trapping experiments, which revealed that the photodegradation of BPS over BiOI/Fe3O4 under visible light was dominated by direct hole and hydroxyl radicals. This study provided a facile method for BiOI/Fe3O4 preparation, and the photocatalyst was promising for removal of BPS from aqueous solutions.
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  • 收稿日期:  2016-05-26
  • 刊出日期:  2016-11-26
高生旺, 郭昌胜, 吕佳佩, 候嵩, 张远, 王朝进, 高建峰, 徐建. 磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S[J]. 环境工程学报, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
引用本文: 高生旺, 郭昌胜, 吕佳佩, 候嵩, 张远, 王朝进, 高建峰, 徐建. 磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S[J]. 环境工程学报, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
shu
GAO Shengwang, GUO Changsheng, LYU Jiapei, HOU Song, ZHANG Yuan, WANG Chaojin, GAO Jianfeng, XU Jian. Preparation of magnetic BiOI/Fe3O4 and its application in photocatalytic degradation of bisphenol S in aqueous solution[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
Citation: GAO Shengwang, GUO Changsheng, LYU Jiapei, HOU Song, ZHANG Yuan, WANG Chaojin, GAO Jianfeng, XU Jian. Preparation of magnetic BiOI/Fe3O4 and its application in photocatalytic degradation of bisphenol S in aqueous solution[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6349-6356. doi: 10.12030/j.cjee.201605012
shu

磁性BiOI/Fe3O4的合成及光催化降解水中的双酚S

  • 1.  中北大学理学院, 太原 030051
  • 2.  环境基准与风险评估国家重点实验室, 中国环境科学研究院, 北京 100012
  • 收稿日期:  2016-05-26
基金项目:

国家自然科学基金资助项目（51208482）

摘要: 利用简单的共沉淀法在室温条件下制备了磁性空心蜂窝状的BiOI/Fe3O4光催化剂，采用X射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、紫外-可见光漫反射谱仪（UV-vis）、N2吸附-解析BET技术和振动磁强计（VSM）等仪器对其进行表征，并在可见光下催化降解双酚S（BPS）。结果表明，催化剂量为1.0 g·L-1、pH为9.0时，对BPS的去除率最高，可见光照90 min，BiOI/Fe3O4复合光催化剂对BPS的去除率可达90.6%。反应结束后，复合光催化剂在外加磁场作用下从反应体系中分离，循环实验5次后，其光催化效率仍保持在85.0%以上，表现出良好的稳定性。降解过程主要包含羟基自由基和光生空穴的氧化作用。沉淀法制备BiOI/Fe3O4简单可靠，条件可控，所制备的BiOI/Fe3O4具有良好的应用前景。

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