Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-06-18T18:50:55.825Z Has data issue: false hasContentIssue false
  • English
  • Français

Enhanced photocatalytic activity and upconversion luminescence of flowerlike hierarchical Bi2MoO6 microspheres by Er3+ doping

Published online by Cambridge University Press:  30 March 2012

Naiying Fan ,
Yajie Chen ,
Qingmao Feng ,
Cheng Wang ,
Kai Pan ,
Wei Zhou ,
Ying Li ,
Haige Hou  and
Guofeng Wang
Naiying Fan
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Yajie Chen
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Qingmao Feng
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Cheng Wang
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Kai Pan
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Wei Zhou
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Ying Li
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Haige Hou
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Guofeng Wang*
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
*
a)Address all correspondence to this author. e-mail: wanggf75@gmail.com
Get access

Abstract

Flowerlike hierarchical Bi2MoO6 and Bi2MoO6:Er3+ microspheres were synthesized by a hydrothermal method. The crystalline size of microspheres decreases with increasing Er3+ concentration. The incorporation of Er3+ has no evident influence on the morphology of Bi2MoO6. The photocatalytic activity of microspheres was evaluated by the degradation of rhodamine B (RhB) aqueous solution under simulated solar light. The best photocatalytic performance was observed when the Er3+ concentration was 0.5%. In addition to the aforementioned high photocatalytic activity, the Bi2MoO6:Er3+ microspheres can emit pure green upconversion (UC) luminescence (2H11/2/4S3/2 → 4I15/2) under 980 nm excitation. We suggest that the enhancement of photocatalytic activity of Bi2MoO6:Er3+(0.5%) is related to the UC luminescence of Er3+ ions. In addition, the BET surface areas of samples increased with increasing Er3+ concentration, which is also benefit for RhB adsorption.

Keywords

LanthanideLuminescenceNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 11 , 14 June 2012 , pp. 1471 - 1475
Copyright
Copyright © Materials Research Society 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Wang, X., Zhuang, J., Peng, Q., and Li, Y.: A general strategy for nanocrystal synthesis. Nature 437, 121 (2005).CrossRefGoogle ScholarPubMed
2.Tian, G., Chen, Y., Zhou, W., Pan, K., Tian, C., Huang, X., and Fu, H.: 3D hierarchical flower-like TiO2 nanostructure: Morphology control and its photocatalytic property. CrystEngComm 13, 2994 (2011).CrossRefGoogle Scholar
3.Shang, M., Wang, W., and Xu, H.: New Bi2WO6 nanocages with high visible-light-driven photocatalytic activities prepared in refluxing EG. Cryst. Growth Des. 9, 991 (2008).CrossRefGoogle Scholar
4.Zheng, Y., You, H., Liu, K., Song, Y., Jia, G., Huang, Y., Yang, M., Zhang, L., and Ning, G.: Facile selective synthesis and luminescence behavior of hierarchical NaY(WO4)2:Eu3+ and Y6WO12:Eu3+. CrystEngComm 13, 3001 (2011).CrossRefGoogle Scholar
5.Tian, G., Chen, Y., Zhou, W., Pan, K., Dong, Y., Tian, C., and Fu, H.: Facile solvothermal synthesis of hierarchical flower-like Bi2MoO6 hollow spheres as high performance visible-light driven photocatalysts. J. Mater. Chem. 21, 887 (2011).CrossRefGoogle Scholar
6.Fujishina, A. and Honda, K.: Electrochemical photolysis of water at a semiconductor electrode. Nature 238, 37 (1972).CrossRefGoogle Scholar
7.Tian, G., Chen, Y., Pan, K., Wang, D., Zhou, W., Ren, Z., and Fu, H.: Efficient visible light-induced degradation of phenol on N-doped anatase TiO2 with large surface area and high crystallinity. Appl. Surf. Sci. 256, 3740 (2010).CrossRefGoogle Scholar
8.Zhou, W., Sun, F., Pan, K., Tian, G., Jiang, B., Ren, Z., Tian, C., and Fu, H.: Well-ordered large-pore mesoporous anatase TiO2 with remarkably high thermal stability and improved crystallinity: Preparation, characterization, and photocatalytic performance. Adv. Funct. Mater. 21, 1922 (2011).CrossRefGoogle Scholar
9.Akhavan, O. and Ghaderi, E.: Photocatalytic reduction of graphene oxide nanosheets on TiO2 thin film for photoinactivation of bacteria in solar light irradiation. J. Phys. Chem. C 113, 20214 (2009).CrossRefGoogle Scholar
10.Yin, W., Wang, W., and Sun, S.: Photocatalytic degradation of phenol over cage-like Bi2MoO6 hollow spheres under visible-light irradiation. Catal. Commun. 11, 647 (2010).CrossRefGoogle Scholar
11.Li, H., Liu, C., Li, K., and Wang, H.: Preparation, characterization and photocatalytic properties of nanoplate Bi2MoO6 catalysts. J. Mater. Sci. 43, 7026 (2008).CrossRefGoogle Scholar
12.Yin, H., Wang, L., Sun, Y., Shi, D., and Wang, X.: Enhancement of crystalization and photocatalysis of Bi2MoO6 nanoplates by SDS assisted hydrothermal method. Adv. Mater. Res. 233-235, 2091 (2011).CrossRefGoogle Scholar
13.Bi, J., Wu, L., Li, Z., Li, Z., Wang, X., and Fu, X.: Simple solvothermal routes to synthesize nanocrystalline Bi2MoO6 photocatalysts with different morphologies. Acta Mater. 55, 4699 (2007).CrossRefGoogle Scholar
14.Wang, G., Peng, Q., Li, Y.: Lanthanide-doped nanocrystals: Synthesis, optical-magnetic properties, and applications. Acc. Chem. Res. 44, 322 (2011).CrossRefGoogle ScholarPubMed
15.Li, P., Peng, Q., and Li, Y.: Dual-mode luminescent colloidal spheres from monodisperse rare-earth fluoride nanocrystals. Adv. Mater. 21, 1945 (2009).CrossRefGoogle Scholar
16.Wang, G., Peng, Q., and Li, Y.: Luminescence tuning of upconversion nanocrystals. Chemistry 16, 4923 (2010).CrossRefGoogle ScholarPubMed
17.Wang, F. and Liu, X.: Recent advances in the chemistry of lanthanide-doped upconversion nanocrystals. Chem. Soc. Rev. 38, 976 (2009).CrossRefGoogle ScholarPubMed
18.Wang, J., Ma, T., Zhang, G., Zhang, Z., Zhang, X., Jiang, Y., Zhao, G., and Zhang, P.: Preparation of nanometer TiO2 catalyst doped with upconversion luminescence agent and investigation on degradation of acid red B dye using visible light. Catal. Commun. 8, 607 (2007).CrossRefGoogle Scholar
19.Zu, N., Yang, H., and Dai, Z.: Different processes responsible for blue pumped, ultraviolet and violet luminescence in high-concentrated Er3+:YAG and low-concentrated Er3+:YAP crystals. Physica B 403, 174 (2008).CrossRefGoogle Scholar
20.Xu, H. and Jiang, Z.: Dynamics of visible-to-ultraviolet upconversion in YAlO3:1% Er3+. Chem. Phys. 287, 155 (2003).CrossRefGoogle Scholar
21.Yang, H., Dai, Z., and Sun, Z.: Upconversion luminescence and kinetics in Er3+:YAlO3 under 652.2 nm excitation. J. Lumin. 124, 207 (2007).CrossRefGoogle Scholar
22.Zhang, Z., Wang, W., Yin, W., Shang, M., Wang, L., and Sun, S.: Inducing photocatalysis by visible light beyond the absorption edge: Effect of upconversion agent on the photocatalytic activity of Bi2WO6. Appl. Catal. B 101, 68 (2010).CrossRefGoogle Scholar
23.Pollnau, M., Gamelin, D., and Lüthi, S.: Power dependence of upconversion luminescence in lanthanide and transition- metal-ion systems. Phys. Rev. B 61, 3337 (2000).CrossRefGoogle Scholar
24.Bai, X., Song, H., Pan, G., Lei, Y., Wang, T., Ren, X., Lu, S., Dong, B., Dai, Q., and Fan, L.: Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline yttria: Saturation and Thermal Effects. J. Phys. Chem. C 111, 13611 (2007).CrossRefGoogle Scholar
25.Wang, G., Qin, W., Zhang, J., Zhang, J., Wang, Y., Cao, C., Wang, L., Wei, G., Zhu, P., and Kim, R.: Enhancement of violet and ultraviolet upconversion emissions in Yb3+/Er3+-codoped YF3 nanocrystals. Opt. Mater. 31, 296 (2008).CrossRefGoogle Scholar