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pH调控水热法合成BiVO4及其可见光催化降解甲基橙

秦玉娇 蒋琦锐 张智芝 王林霞

秦玉娇, 蒋琦锐, 张智芝, 王林霞. pH调控水热法合成BiVO4及其可见光催化降解甲基橙[J]. 分析测试技术与仪器, 2022, 28(2): 139-143. doi: 10.16495/j.1006-3757.2022.02.005
引用本文: 秦玉娇, 蒋琦锐, 张智芝, 王林霞. pH调控水热法合成BiVO4及其可见光催化降解甲基橙[J]. 分析测试技术与仪器, 2022, 28(2): 139-143. doi: 10.16495/j.1006-3757.2022.02.005
QIN Yu-jiao, JIANG Qi-rui, ZHANG Zhi-zhi, WANG Lin-xia. Synthesis of BiVO4 by pH-Controlled Hydrothermal Method and Visible-Light Catalytic Degradation of Methyl Orange[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 139-143. doi: 10.16495/j.1006-3757.2022.02.005
Citation: QIN Yu-jiao, JIANG Qi-rui, ZHANG Zhi-zhi, WANG Lin-xia. Synthesis of BiVO4 by pH-Controlled Hydrothermal Method and Visible-Light Catalytic Degradation of Methyl Orange[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 139-143. doi: 10.16495/j.1006-3757.2022.02.005

pH调控水热法合成BiVO4及其可见光催化降解甲基橙

doi: 10.16495/j.1006-3757.2022.02.005
详细信息
    作者简介:

    秦玉娇(1998-),女,硕士,主要从事无机功能材料的合成和功能研究

    通讯作者:

    王林霞(1984-),女,实验师,主要从事无机功能材料的合成和功能研究,E-mail: 61950085@qq.com

  • 中图分类号: O643.3

Synthesis of BiVO4 by pH-Controlled Hydrothermal Method and Visible-Light Catalytic Degradation of Methyl Orange

  • 摘要: 以硝酸铋为铋源, 偏钒酸铵为钒源, 醋酸钠调节pH值, 采用水热法合成光催化剂BiVO4, 采用X-射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对产物进行结构和形貌分析. 在可见光条件下, 考察BiVO4对甲基橙(MO)的光催化性能. 结果表明, 在pH值为6.0的条件下合成的BiVO4具有较优的光催化性能, 可见光条件下催化反应5 h后, MO的降解率达到98.4%, 并且在循环反应5次后对MO的降解率仍在95%以上. 因BiVO4良好的光催化活性和稳定性, 在废水处理领域有非常广阔的应用前景.
  • 图  1  BiVO4 (a) 的XRD图

    Figure  1.  XRD pattern of BiVO4 (a)

    图  2  不同pH下制备的BiVO4(b)、(c)、(d)的XRD图

    Figure  2.  XRD patterns of BiVO4 (b), (c), (d) at different pHs

    图  3  不同pH下制备的BiVO4的SEM图谱

    (a) pH值为4.5, (b) pH值为5.5, (c) pH值为6.0, (d) pH值为6.5

    Figure  3.  SEM images of BiVO4 at different pHs

    (a) pH value of 4.5, (b) pH value of 5.5, (c) pH value of 6.0, (d) pH value of 6.5

    图  4  不同pH下制备的BiVO4的TEM图谱

    (a) pH值为4.5, (b) pH值为5.5, (c) pH值为6.0, (d) pH值为6.5

    Figure  4.  TEM images of BiVO4 at different pHs

    (a)pH value of 4.5, (b) pH value of 5.5, (c) pH value of 6.0, (d) pH value of 6.5

    图  5  BiVO4 (a)催化降解MO溶液的紫外-可见光谱图

    Figure  5.  UV-Vis spectra of MO aqueous solution in presence of BiVO4 (a)

    图  6  不同光催化剂在不同时间段对MO溶液的降解率图

    Figure  6.  Photodegradation activities of MO by various photocatalysts at different intervals

    图  7  可见光条件下,BiVO4光催化MO溶液的循环稳定图

    Figure  7.  Recycle curves of BiVO4 photocatalytic degradation MO under visible light conditions

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出版历程
  • 收稿日期:  2022-05-20
  • 修回日期:  2022-05-30
  • 刊出日期:  2022-06-30

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