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Bi25FeO40-g-C3N4磁性催化剂的制备及其可见光催化性能

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孙爱武, 陈欢, 宋春艳, 江芳, 汪信. Bi25FeO40-g-C3N4磁性催化剂的制备及其可见光催化性能[J]. 环境化学, 2013, 32(5): 748-754. doi: 10.7524/j.issn.0254-6108.2013.05.005
引用本文: 孙爱武, 陈欢, 宋春艳, 江芳, 汪信. Bi25FeO40-g-C3N4磁性催化剂的制备及其可见光催化性能[J]. 环境化学, 2013, 32(5): 748-754. doi: 10.7524/j.issn.0254-6108.2013.05.005
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SUN Aiwu, CHEN Huan, SONG Chunyan, JIANG Fang, WANG Xin. Preparation of magnetic Bi25FeO40-g-C3N4 catalyst and its high visible-light photocatalytic performance[J]. Environmental Chemistry, 2013, 32(5): 748-754. doi: 10.7524/j.issn.0254-6108.2013.05.005
Citation: SUN Aiwu, CHEN Huan, SONG Chunyan, JIANG Fang, WANG Xin. Preparation of magnetic Bi25FeO40-g-C3N4 catalyst and its high visible-light photocatalytic performance[J]. Environmental Chemistry, 2013, 32(5): 748-754. doi: 10.7524/j.issn.0254-6108.2013.05.005
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Bi25FeO40-g-C3N4磁性催化剂的制备及其可见光催化性能

  • 1.

    南京理工大学环境与生物工程学院, 南京, 210094;

  • 2.

    南京理工大学软化学与功能材料教育部重点实验室, 南京, 210094

  • 基金项目:

    国家自然科学基金(51178223,51208257)

    江苏省自然科学基金(SBK201240759)

    江苏省环保科研课题(2012008)资助.

Preparation of magnetic Bi25FeO40-g-C3N4 catalyst and its high visible-light photocatalytic performance

  • 1.

    School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China;

  • 2.

    Key Laboratory of Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Ministry of Education, Nanjing, 210094, China

  • Fund Project:

  • 摘要: 采用水热法制备了铁酸铋(Bi25FeO40),将其与类石墨相氮化碳(g-C3N4)复合得到Bi25FeO40-g-C3N4磁性光催化剂,用X-射线衍射(XRD)、扫描电子显微镜(SEM)、BET比表面积分析、UV-Vis光谱和磁滞回线对该磁性光催化剂进行了表征.考察了Bi25FeO40-g-C3N4复合催化剂对亚甲基蓝的可见光催化降解效果.结果表明,Bi25FeO40-g-C3N4复合催化剂对亚甲基蓝的可见光催化降解效率远高于Bi25FeO40.此外,Bi25FeO40-g-C3N4表现出顺磁性,可通过磁选分离并回收.
    Abstract: Magnetic Bi25FeO40-g-C3N4 visible-light photocatalysts were prepared via the mixture and calcination of graphitic carbon nitrides (g-C3N4) and Bi25FeO40 synthesized by the hydrothermal methods. Bi25FeO40-g-C3N4 catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area analysis, UV-vis absorbance and magnetic hysteresis loop measurements. The results showed that Bi25FeO40-g-C3N4composite photocatalyst exhibited prominently enhanced photocatalytic activity for the degradation of Methylene Blue (MB) under visible-light irradiation than that of Bi25FeO40. Additionally, the Bi25FeO40-g-C3N4 composite was superparamagnetic, and could be readily recovered in an external magnetic field.
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  • [1] Xu J H, Wang W Z, Sun S M, Enhancing visible-light-induced photocatalytic activity by coupling with wide-band-gap semiconductor: A case study on Bi2WO6/TiO2 [J]. Applied Catalysis B: Environmental, 2012,111-112: 126-132
    [2] 方艳芬, 兰天龙, 郑云, 等. 碘铈共掺杂纳米TiO2的制备及可见光光催化性能[J]. 环境化学, 2012,31(2): 135-143
    [3] 王春根, 陈建林, 安凤霞, 等. SnWO4可见光催化降解甲基橙研究[J]. 环境化学, 2011,30(9): 1564-1568
    [4] 陈亚, 陈建林, 姚三丽, 等. Bi2MoO6可见光催化去除4BS染料实验研究[J]. 环境化学, 2009,28(6): 809-812
    [5] Li Q, Guo B D, Yu J G, et al. Highly efficient visible-light-driven photocatalytic hydrogen production of CdS-cluster-decorated graphene nanosheets [J]. Journal of the American Chemical Society, 2011,133(28): 10878-10884
    [6] Zhang Z J, Wang W Z, Yin W Z, et al. Inducing photocatalysis by visible light beyond the absorption edge: Effect of upconversion agent on the photocatalytic activity of Bi2WO6 [J]. Applied Catalysis B: Environmental, 2010,101(1/2): 68-73
    [7] Xu Q Y, Zheng X H, Wen Z, et al. Enhanced room temperature ferromagnetism in porous BiFeO3 prepared using cotton templates [J]. Solid State Communications, 2011,151: 624-627
    [8] 曹枫, 唐培松, 陈海锋, 等. 溶胶-凝胶法制备铁酸铋及其可见光催化性能[J]. 稀有金属材料与工程, 2010,39: 422-425
    [9] Wang X, Lin Y, Ding X F, et al. Enhanced visible-light-response photocatalytic activity of bismuth ferrite nanoparticles [J]. Journal of Alloys and Compounds, 2011,509: 6585-6588
    [10] Gao F, Chen X Y, Yin K B, et al. Visible-light photocatalytic properties of weak magnetic BiFeO3 nanoparticles [J]. Advanced Materials, 2007,19: 2889-2892
    [11] Li J M, Song J Y, Chen J G, et al. PVA (Polyvincyl Acohol)-assisted hydrothermal preparation of Bi25FeO40 and its photocatalytic activity [J]. Materials Research Society Symposium Proceedings, 2010,1217:1217-Y03-22
    [12] Guo R Q,Fang L,Dong W. Enhanced photocatalytic activity and ferromagnetism in Gd doped BiFeO3 nanoparticles [J]. Journal of Physical Chemistry C, 2010,114: 21390-21396
    [13] Zang Y Y,Xie D,Chen Y. Electrical and thermal properties of a carbon nanotube/polycrystalline BiFeO3/Pt photovoltaic heterojunction with CdSe quantum dots sensitization [J]. Nanoscale, 2012,4:2926-2930
    [14] 李鑫, 何世育,李忠. 碳纳米管改性铁酸铋光催化还原CO2合成甲醇[J]. 硅酸盐学报, 2009,37(11):1869-1872
    [15] Song L M, Zhang S J, Wu X Q, et al. Graphitic C3N4 photocatalyst for esterification of benzaldehyde and alcohol under visible light radiation [J]. Industrial and Engineering Chemistry Research, 2012,51(28):9510-9514
    [16] Wang X C, Blechert S, Antonietti M. Polymeric graphitic carbon nitride for heterogeneous photocatalysis [J]. ACS Catalysis, 2012, 2(8):1596-1606
    [17] Ge L, Han C C, Liu J. Novel visible light-induced g-C3N4/Bi2WO6 composite photocatalysts for efficient degradation of methyl orange [J]. Applied Catalysis B: Environmental, 2011,108-109:100-107
    [18] Chen C, Cheng J R, Yu S W, et al. Hydrothermal synthesis of perovskite bismuth ferrite crystallites [J]. Journal of Crystal Growth, 2006,291:135-139
    [19] Wang X C, Maeda K, Chen X F, et al. Polymer semiconductors for artificial photosynthesis: Hydrogen evolution by mesoporous graphitic carbon nitride with visible light [J]. Journal of the American Chemical Society, 2009,131:1680-1681
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  • 收稿日期:  2012-12-29

Bi25FeO40-g-C3N4磁性催化剂的制备及其可见光催化性能

  • 1.  南京理工大学环境与生物工程学院, 南京, 210094;
  • 2.  南京理工大学软化学与功能材料教育部重点实验室, 南京, 210094
  • 收稿日期:  2012-12-29
基金项目:

国家自然科学基金(51178223,51208257)

江苏省自然科学基金(SBK201240759)

江苏省环保科研课题(2012008)资助.

摘要: 采用水热法制备了铁酸铋(Bi25FeO40),将其与类石墨相氮化碳(g-C3N4)复合得到Bi25FeO40-g-C3N4磁性光催化剂,用X-射线衍射(XRD)、扫描电子显微镜(SEM)、BET比表面积分析、UV-Vis光谱和磁滞回线对该磁性光催化剂进行了表征.考察了Bi25FeO40-g-C3N4复合催化剂对亚甲基蓝的可见光催化降解效果.结果表明,Bi25FeO40-g-C3N4复合催化剂对亚甲基蓝的可见光催化降解效率远高于Bi25FeO40.此外,Bi25FeO40-g-C3N4表现出顺磁性,可通过磁选分离并回收.

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