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以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能

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汪淑廉, 何燕, 顾彦, 方艳芬, 黄应平. 以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能[J]. 环境工程学报, 2014, 8(4): 1297-1304.
引用本文: 汪淑廉, 何燕, 顾彦, 方艳芬, 黄应平. 以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能[J]. 环境工程学报, 2014, 8(4): 1297-1304.
shu
Wang Shulian, He Yan, Gu Yan, Fang Yanfen, Huang Yingping. Preparation and photocatalytic properties of PEG-Bi2O2CO3 under visible light irradiation[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1297-1304.
Citation: Wang Shulian, He Yan, Gu Yan, Fang Yanfen, Huang Yingping. Preparation and photocatalytic properties of PEG-Bi2O2CO3 under visible light irradiation[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1297-1304.
shu

以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能

  • 1.

    中国科学院水生生物研究所, 武汉 430072

  • 2.

    中国科学院大学, 北京 100049

  • 3.

    三峡大学三峡地区地质灾害与生态环境湖北省协同创新中心, 宜昌 443002

  • 基金项目:

    国家自然科学基金资助项目（21377067，21177072，21207079）

    湖北省新世纪高层次人才入选人员优先资助项目（201203）

  • 中图分类号: O643.32

Preparation and photocatalytic properties of PEG-Bi2O2CO3 under visible light irradiation

  • 1.

    Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China

  • 2.

    Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

  • 3.

    Collaborative Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, China Three Gorges University, Yichang 443002

  • Fund Project:

  • 摘要: 以聚乙二醇-6000（PEG-6000）为模板剂水热法制备碳酸氧铋（p-Bi2O2CO3）粉末，采用X射线衍射（XRD）、扫描电镜（SEM）、X射线光电子能谱（XPS）、透射电子显微镜（TEM）和紫外可见漫反射（DRS）对粉末进行了初步表征。在可见光（λ≥420 nm）照射下，以罗丹明B（RhB）和水杨酸（SA）光催化降解实验为探针反应，实验结果表明，p-Bi2O2CO3具有较高的光催化活性，对RhB和SA有较好的降解效果。通过紫外-可见光谱（UV-Vis）、红外光谱（IR）和测定总有机碳（TOC）含量，光催化反应35 h后RhB的矿化率为77%，同时对SA的降解率达到43%。同时，采用N，N-二乙基对苯二胺（DPD）分光光度法和对苯二甲酸荧光光度法分别测定了降解过程中H2O2和羟基自由基（·OH）的变化，表明p-Bi2O2CO3/Vis光催化降解机理涉及到·OH历程。
    Abstract: Bismuthyl carbonate (p-Bi2O2CO3) powders were synthesized by hydro-thermal method using polyethylene glycol-6000 (PEG-6000) as the template.X-ray diffraction (XRD),scanning electron microscopy (SEM),X-ray photoelectron spectroscopy (XPS),transmission electron microscopy (TEM) and UV-visible diffuse reflectance (DRS) were employed to characterize the powders.Under visible light (λ≥420 nm) irradiation,the degradation of rhodamine B (RhB) and salicylic acid (SA) were used as probe reactions to investigate the catalytic performance of Bi2O2CO3 modified by PEG-6000 (p-Bi2O2CO3).By analyzing the results of ultraviolet-visible spectroscopy (UV-Vis),infrared spectroscopy (IR) and total organic carbon (TOC),the mineralization rate of RhB was 77% and the degradation rate of SA reached 43%.In addition,the concentration of hydrogen peroxide (H2O2) and hydroxyl radical (·OH) were determined by the N,N-diethyl-p-phenylenediamine (DPD) method and the fluorescence method,respectively,and the results demonstrated that the degradation of organic pollutants by p-Bi2O2CO3 under visible light illumination was dominated by ·OH generated in the system.
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  • 收稿日期:  2013-05-22
  • 刊出日期:  2014-03-28
汪淑廉, 何燕, 顾彦, 方艳芬, 黄应平. 以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能[J]. 环境工程学报, 2014, 8(4): 1297-1304.
引用本文: 汪淑廉, 何燕, 顾彦, 方艳芬, 黄应平. 以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能[J]. 环境工程学报, 2014, 8(4): 1297-1304.
shu
Wang Shulian, He Yan, Gu Yan, Fang Yanfen, Huang Yingping. Preparation and photocatalytic properties of PEG-Bi2O2CO3 under visible light irradiation[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1297-1304.
Citation: Wang Shulian, He Yan, Gu Yan, Fang Yanfen, Huang Yingping. Preparation and photocatalytic properties of PEG-Bi2O2CO3 under visible light irradiation[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1297-1304.
shu

以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能

  • 1.  中国科学院水生生物研究所, 武汉 430072
  • 2.  中国科学院大学, 北京 100049
  • 3.  三峡大学三峡地区地质灾害与生态环境湖北省协同创新中心, 宜昌 443002
  • 收稿日期:  2013-05-22
基金项目:

国家自然科学基金资助项目（21377067，21177072，21207079）

湖北省新世纪高层次人才入选人员优先资助项目（201203）

摘要: 以聚乙二醇-6000（PEG-6000）为模板剂水热法制备碳酸氧铋（p-Bi2O2CO3）粉末，采用X射线衍射（XRD）、扫描电镜（SEM）、X射线光电子能谱（XPS）、透射电子显微镜（TEM）和紫外可见漫反射（DRS）对粉末进行了初步表征。在可见光（λ≥420 nm）照射下，以罗丹明B（RhB）和水杨酸（SA）光催化降解实验为探针反应，实验结果表明，p-Bi2O2CO3具有较高的光催化活性，对RhB和SA有较好的降解效果。通过紫外-可见光谱（UV-Vis）、红外光谱（IR）和测定总有机碳（TOC）含量，光催化反应35 h后RhB的矿化率为77%，同时对SA的降解率达到43%。同时，采用N，N-二乙基对苯二胺（DPD）分光光度法和对苯二甲酸荧光光度法分别测定了降解过程中H2O2和羟基自由基（·OH）的变化，表明p-Bi2O2CO3/Vis光催化降解机理涉及到·OH历程。

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