表面Cu2O纳米颗粒修饰高效促进γ-Bi2MoO6的可见光催化活性

引用本文: 杨自嵘, 韩玉琦, 王芳, 刘倩, 张扬, 敏世雄. 表面Cu₂O纳米颗粒修饰高效促进γ-Bi₂MoO₆的可见光催化活性[J]. 物理化学学报, doi: 10.3866/PKU.WHXB201301151 shu

Citation: YANG Zi-Rong, HAN Yu-Qi, WANG Fang, LIU Qian, ZHANG Yang, MIN Shi- Xiong. Significantly Improved Visible Light Photocatalytic Activity of γ-Bi₂MoO₆ by Surface Modification with Cu₂O Nanoparticles[J]. Acta Physico-Chimica Sinica, doi: 10.3866/PKU.WHXB201301151 shu

表面Cu₂O纳米颗粒修饰高效促进γ-Bi₂MoO₆的可见光催化活性

杨自嵘 ^1, ,
韩玉琦 ^1, ,
王芳 ^1, ,
刘倩 ^1, ,
张扬 ^1, ,
敏世雄 ^1,2,

基金项目:
国家自然科学基金(51263008) (51263008)

河西学院校长基金(XZ2010) (XZ2010)

河西学院大学生科技创新项目和甘肃省高校河西走廊特色资源利用省级重点实验室面上项目(XZ1012)资助 (XZ1012)

摘要:

采用水热法在γ-Bi₂MoO₆光催化剂表面修饰了纳米级Cu₂O, 得到了具有高效可见光响应的复合光催化材料, 并利用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、选区电子衍射(SAED)、X射线光电子能谱(XPS)和紫外-可见漫反射光谱(UV-Vis-DRS)等技术对其相结构、微观形貌和光吸收性能进行了表征. 在可见光条件下(λ>400 nm)考察了Cu₂O表面修饰对γ-Bi₂MoO₆光催化降解亚甲基蓝(MB)性能的促进作用. 结果表明, 纳米级Cu₂O(~10 nm)颗粒均匀地修饰于γ-Bi₂MoO₆的表面, 使γ-Bi₂MoO₆的可见光吸收带发生明显红移, 且吸收强度大幅提高, 增强了复合材料光生电子-空穴对的分离效率, 从而使复合材料表现出较高的光催化活性. 当Cu₂O的表面修饰量为1.5%(w)时, 复合光催化剂降解MB的活性与纯γ-Bi₂MoO₆相比提高了6.4倍.

关键词:

English

Significantly Improved Visible Light Photocatalytic Activity of γ-Bi₂MoO₆ by Surface Modification with Cu₂O Nanoparticles

1.
1 Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities , College of Chemistry and Chemical Engineering , Hexi University, Zhangye 734000 , Gansu Province, P. R. China;
2 State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
Received Date: 31 October 2012
Available Online: 25 March 2013
Fund Project:
国家自然科学基金(51263008)

河西学院校长基金(XZ2010)

河西学院大学生科技创新项目和甘肃省高校河西走廊特色资源利用省级重点实验室面上项目(XZ1012)资助

Abstract:

Nanosized cuprous oxide (Cu₂O) was used to modify the surface of γ-Bi₂MoO₆, resulting in highly efficient visible-light-responsive Cu₂O/γ-Bi₂MoO₆ composite photocatalysts. The obtained photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), and UV-Vis diffuse reflectance spectrum (UV-Vis-DRS) to determine their phase structures, micromorphologies, and light absorption properties. The important role of surface-modified Cu₂O in improving the photocatalytic activity of γ-Bi₂MoO₆ under visible light irradiation was studied using the degradation of methylene blue (MB). The results showed that Cu₂O nanoparticles with average size of ~10 nm modified the surface of the γ-Bi₂MoO₆. The nanoparticles delivered both an obvious red-shift of absorption threshold and intensity of the γ-Bi₂MoO₆, as well as enhanced separation efficiency of photogenerated carriers, thereby leading to significant enhancement in photocatalytic activity. When the amount of Cu₂O was 1.5%, the photocatalytic activity of the Cu₂O/γ-Bi₂MoO₆ composite photocatalyst was 6.4 times higher than that of pristine γ-Bi₂MoO₆.

Key words:

1. [1]
  
  (1) Hoffmann, M. R.; Martin, S. T.; Choi,W. Y.; Bahnemann, D.W.Chem. Rev. 1995, 95, 69. doi: 10.1021/cr00033a004
  (1) Hoffmann, M. R.; Martin, S. T.; Choi,W. Y.; Bahnemann, D.W.Chem. Rev. 1995, 95, 69. doi: 10.1021/cr00033a004
2. [2]
  (2) Tong, G. X.; Guan, J. G.; Zhang, Q. J. Mater. Chem. Phys. 2011,127, 371.(2) Tong, G. X.; Guan, J. G.; Zhang, Q. J. Mater. Chem. Phys. 2011,127, 371.
3. [3]
  (3) Wang, S. F.; Yang, H.; Xian, T. Chin. J. Catal. 2011, 32, 1199.[王仕发, 杨华, 县涛. 催化学报, 2011, 32, 1199. ](3) Wang, S. F.; Yang, H.; Xian, T. Chin. J. Catal. 2011, 32, 1199.[王仕发, 杨华, 县涛. 催化学报, 2011, 32, 1199. ]
4. [4]
  (4) Mei, S. X.;Wang, F.; Zhang, Z. M.; Han, Y. Q.; Feng, L. ActaPhys. -Chim. Sin. 2009, 25, 1303. [敏世雄, 王芳, 张振敏,韩玉琦, 冯雷. 物理化学学报, 2009, 25, 1303.] doi: 10.3866/PKU.WHXB20090711(4) Mei, S. X.;Wang, F.; Zhang, Z. M.; Han, Y. Q.; Feng, L. ActaPhys. -Chim. Sin. 2009, 25, 1303. [敏世雄, 王芳, 张振敏,韩玉琦, 冯雷. 物理化学学报, 2009, 25, 1303.] doi: 10.3866/PKU.WHXB20090711
5. [5]
  (5) Tong, G. X.; Guan, J. G.; Xiao, Z. D.; Huang, X.; Guan, Y.J. Nanopart. Res. 2010, 12, 3025. doi: 10.1007/s11051-010-9897-2(5) Tong, G. X.; Guan, J. G.; Xiao, Z. D.; Huang, X.; Guan, Y.J. Nanopart. Res. 2010, 12, 3025. doi: 10.1007/s11051-010-9897-2
6. [6]
  (6) Kudo, A.; Hijii, S. Chem. Lett. 1999, 10, 1103.(6) Kudo, A.; Hijii, S. Chem. Lett. 1999, 10, 1103.
7. [7]
  (7) Zhang, C.; Zhu, Y. F. Chem. Mater. 2005, 17, 3537. doi: 10.1021/cm0501517(7) Zhang, C.; Zhu, Y. F. Chem. Mater. 2005, 17, 3537. doi: 10.1021/cm0501517
8. [8]
  (8) Tang, J.W.; Zou, Z. G.; Ye, J. H. Catal. Lett. 2004, 92, 53. doi: 10.1023/B:CATL.0000011086.20412.aa(8) Tang, J.W.; Zou, Z. G.; Ye, J. H. Catal. Lett. 2004, 92, 53. doi: 10.1023/B:CATL.0000011086.20412.aa
9. [9]
  (9) Fu, H. B.; Pan, C. S.; Yao,W. Q.; Zhu, Y. F. J. Phys. Chem. B2005, 109, 22432. doi: 10.1021/jp052995j(9) Fu, H. B.; Pan, C. S.; Yao,W. Q.; Zhu, Y. F. J. Phys. Chem. B2005, 109, 22432. doi: 10.1021/jp052995j
10. [10]
  (10) Jiang, H, Y.; Dai, H. X.; Meng, X.; Zhang, L.; Deng, J. G.; Ji, K.M. Chin. J. Catal. 2011, 32, 939. [蒋海燕, 戴洪兴, 孟雪,张磊, 邓积光, 吉科猛. 催化学报, 2011, 32, 939.]doi: 10.1016/S1872-2067(10)60215-X(10) Jiang, H, Y.; Dai, H. X.; Meng, X.; Zhang, L.; Deng, J. G.; Ji, K.M. Chin. J. Catal. 2011, 32, 939. [蒋海燕, 戴洪兴, 孟雪,张磊, 邓积光, 吉科猛. 催化学报, 2011, 32, 939.]doi: 10.1016/S1872-2067(10)60215-X
11. [11]
  (11) Zhang, L.; Chen, D. R.; Jiao, X. L. J. Phys. Chem. B 2006, 110,2668. doi: 10.1021/jp056367d(11) Zhang, L.; Chen, D. R.; Jiao, X. L. J. Phys. Chem. B 2006, 110,2668. doi: 10.1021/jp056367d
12. [12]
  (12) Xi, G. C.; Ye, J. H. Chem. Commun. 2010, 46, 1893. doi: 10.1039/b923435g(12) Xi, G. C.; Ye, J. H. Chem. Commun. 2010, 46, 1893. doi: 10.1039/b923435g
13. [13]
  (13) Tang, J.W.; Zou, Z. G.; Ye, J. H. Angew. Chem. Int. Edit. 2004,43, 4463.(13) Tang, J.W.; Zou, Z. G.; Ye, J. H. Angew. Chem. Int. Edit. 2004,43, 4463.
14. [14]
  (14) Li, H. H.; Li, K.W.;Wang, H. Chin. J. Inorg. Chem. 2009, 25,512. [李红花, 李坤威, 汪浩. 无机化学学报, 2009, 25,512.](14) Li, H. H.; Li, K.W.;Wang, H. Chin. J. Inorg. Chem. 2009, 25,512. [李红花, 李坤威, 汪浩. 无机化学学报, 2009, 25,512.]
15. [15]
  (15) Chen, Y.; Chen, J. L.; Yao, S. L.; Zhou, Y.; Xu, Y. T.Environmental. Chem. 2009, 28, 809. [陈亚, 陈建林, 姚三丽, 周懿, 许岳泰. 环境化学, 2009, 28, 809.] doi: 10.1897/08-228R.1(15) Chen, Y.; Chen, J. L.; Yao, S. L.; Zhou, Y.; Xu, Y. T.Environmental. Chem. 2009, 28, 809. [陈亚, 陈建林, 姚三丽, 周懿, 许岳泰. 环境化学, 2009, 28, 809.] doi: 10.1897/08-228R.1
16. [16]
  (16) Zhou, L.; Yu, M. M.; Yang, J.;Wang, Y. H.; Yu, C. Z. J. Phys.Chem. C 2010, 114, 18812. doi: 10.1021/jp107061p(16) Zhou, L.; Yu, M. M.; Yang, J.;Wang, Y. H.; Yu, C. Z. J. Phys.Chem. C 2010, 114, 18812. doi: 10.1021/jp107061p
17. [17]
  (17) Kudo, A. Int. J. Hydrog. Energy 2006, 31, 197. doi: 10.1016/j.ijhydene.2005.04.050(17) Kudo, A. Int. J. Hydrog. Energy 2006, 31, 197. doi: 10.1016/j.ijhydene.2005.04.050
18. [18]
  (18) Bi, J. H.;Wu, L.; Li, J.; Li, Z. H.;Wang, X. X.; Fu, X. Z. ActaMater. 2007, 55, 4699. doi: 10.1016/j.actamat.2007.04.034(18) Bi, J. H.;Wu, L.; Li, J.; Li, Z. H.;Wang, X. X.; Fu, X. Z. ActaMater. 2007, 55, 4699. doi: 10.1016/j.actamat.2007.04.034
19. [19]
  (19) Shimodaira, Y.; Kato, H.; Kobayashi, H.; Kudo, A. J. Phys.Chem. B 2006, 110, 17790. doi: 10.1021/jp0622482(19) Shimodaira, Y.; Kato, H.; Kobayashi, H.; Kudo, A. J. Phys.Chem. B 2006, 110, 17790. doi: 10.1021/jp0622482
20. [20]
  (20) Zhao, X.; Liu, H. J.; Shen, Y. L.; Qu, J. H. Applied Catalysis B:Environmental 2011, 106, 63.(20) Zhao, X.; Liu, H. J.; Shen, Y. L.; Qu, J. H. Applied Catalysis B:Environmental 2011, 106, 63.
21. [21]
  (21) Dawson, A.; Kamat, P. V. J. Phys. Chem. B 2001, 105, 960.doi: 10.1021/jp0033263(21) Dawson, A.; Kamat, P. V. J. Phys. Chem. B 2001, 105, 960.doi: 10.1021/jp0033263
22. [22]
  (22) Kohtani, S.; Kudo, A.; Sakata, T. Chem. Phys. Lett. 1993, 206,166. doi: 10.1016/0009-2614(93)85535-V(22) Kohtani, S.; Kudo, A.; Sakata, T. Chem. Phys. Lett. 1993, 206,166. doi: 10.1016/0009-2614(93)85535-V
23. [23]
  (23) Zong, X.; Yan, H. J.;Wu, G. P.; Ma, G. J.;Wen, F. Y.;Wang, L.;Li, C. J. Am. Chem. Soc. 2008, 130, 7176. doi: 10.1021/ja8007825(23) Zong, X.; Yan, H. J.;Wu, G. P.; Ma, G. J.;Wen, F. Y.;Wang, L.;Li, C. J. Am. Chem. Soc. 2008, 130, 7176. doi: 10.1021/ja8007825
24. [24]
  (24) Xu, L. L.; Ni, L.; Shi,W. D.; Guan, J. G. Chin. J. Catal. 2012,33, 1101. [许蕾蕾, 倪磊, 施伟东, 官建国. 催化学报, 2012,33, 1101.] doi: 10.1016/S1872-2067(11)60382-3(24) Xu, L. L.; Ni, L.; Shi,W. D.; Guan, J. G. Chin. J. Catal. 2012,33, 1101. [许蕾蕾, 倪磊, 施伟东, 官建国. 催化学报, 2012,33, 1101.] doi: 10.1016/S1872-2067(11)60382-3
25. [25]
  (25) Zhou, B.; Liu, Z. G.;Wang, H. X.; Huang, X. Q.; Sui, Y.;Wang,X. J.; Lu, Z.; Su,W. H. Acta Phys. -Chim. Sin. 2009, 25, 1841.[周波, 刘志国, 王红霞, 黄喜强, 隋郁, 王先杰, 吕喆,苏文辉. 物理化学学报, 2009, 25, 1841.] doi: 10.3866/PKU.WHXB20090904(25) Zhou, B.; Liu, Z. G.;Wang, H. X.; Huang, X. Q.; Sui, Y.;Wang,X. J.; Lu, Z.; Su,W. H. Acta Phys. -Chim. Sin. 2009, 25, 1841.[周波, 刘志国, 王红霞, 黄喜强, 隋郁, 王先杰, 吕喆,苏文辉. 物理化学学报, 2009, 25, 1841.] doi: 10.3866/PKU.WHXB20090904
26. [26]
  (26) Ming, C. L.;Wei, M. C.; Kisch, H. Chem. Phys. Lett. 2008, 461,102.(26) Ming, C. L.;Wei, M. C.; Kisch, H. Chem. Phys. Lett. 2008, 461,102.
27. [27]
  (27) Song, J. M.; Zhang, X. X.; Jiao, J.; Mei, X. F.; Tian, Y. P. Chin.J. Appl. Chem. 2010, 27, 1328. [宋继梅, 张小霞, 焦剑,梅雪峰, 田玉鹏. 应用化学, 2010, 27, 1328.](27) Song, J. M.; Zhang, X. X.; Jiao, J.; Mei, X. F.; Tian, Y. P. Chin.J. Appl. Chem. 2010, 27, 1328. [宋继梅, 张小霞, 焦剑,梅雪峰, 田玉鹏. 应用化学, 2010, 27, 1328.]
28. [28]
  (28) Li, X. Z.; Li, F. B.; Yang, C. L.; Ge,W. K. J. Photochem.Photobiol. A: Chem. 2002, 141, 209.(28) Li, X. Z.; Li, F. B.; Yang, C. L.; Ge,W. K. J. Photochem.Photobiol. A: Chem. 2002, 141, 209.
29. [29]
  (29) Xu, Y. H.; Liang, D. H.; Liu, M. L.; Liu, D. Z. Mater. Res.Bull. 2008, 43, 3474. doi: 10.1016/j.materresbull.2008.01.026(29) Xu, Y. H.; Liang, D. H.; Liu, M. L.; Liu, D. Z. Mater. Res.Bull. 2008, 43, 3474. doi: 10.1016/j.materresbull.2008.01.026
30. [30]
  (30) Chen, X. Y.; Lu, D. F.; Huang, J. F.; Lu, Y. F.; Zheng, J. Q. ActaPhys. -Chim. Sin. 2012, 28, 161. [陈孝云, 陆东芳, 黄锦锋,卢燕凤, 郑建强. 物理化学学报, 2012, 28, 161.] doi: 10.3866/PKU.WHXB201228161(30) Chen, X. Y.; Lu, D. F.; Huang, J. F.; Lu, Y. F.; Zheng, J. Q. ActaPhys. -Chim. Sin. 2012, 28, 161. [陈孝云, 陆东芳, 黄锦锋,卢燕凤, 郑建强. 物理化学学报, 2012, 28, 161.] doi: 10.3866/PKU.WHXB201228161
31. [31]
  (31) Xiong, Z. G.; Zhang, L. L.; Ma, J. Z.; Zhao, X. S. Chem.Commun. 2010, 46, 6099. doi: 10.1039/c0cc01259a
  (31) Xiong, Z. G.; Zhang, L. L.; Ma, J. Z.; Zhao, X. S. Chem.Commun. 2010, 46, 6099. doi: 10.1039/c0cc01259a

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

表面Cu₂O纳米颗粒修饰高效促进γ-Bi₂MoO₆的可见光催化活性

English

Significantly Improved Visible Light Photocatalytic Activity of γ-Bi₂MoO₆ by Surface Modification with Cu₂O Nanoparticles

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