Citation: ZHAO Wei-Rong, SHI Qiao-Meng, LIU Ying. Performance, Deactivation and Regeneration of SnO₂/TiO₂ Nanotube Composite Photocatalysts[J]. Acta Physico-Chimica Sinica, ;2014, 30(7): 1318-1324. doi: 10.3866/PKU.WHXB201404222 shu

Performance, Deactivation and Regeneration of SnO₂/TiO₂ Nanotube Composite Photocatalysts

1.
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, P. R. China

Received Date: 26 January 2014
Available Online: 22 April 2014
Fund Project:

SnO₂/TiO₂ nanotube composite photocatalysts were synthesized by microwave-assisted hydrothermal and micro-emulsion methods. The photocatalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy with energy-dispersive X-ray spectroscopy (TEM/EDX), and electrochemical techniques. Toluene was chosen as a model pollutant to evaluate the performance, deactivation, and regeneration behavior of the photocatalysts under ultraviolet (UV) and vacuum ultraviolet (VUV) irradiation. The results show that ternary heterojunctions of SnO₂/TiO₂ nanotube composite photocatalysts including anatase TiO₂ (A-TiO₂)/rutile TiO₂ (R-TiO₂), A-TiO₂/SnO₂, and R-TiO₂/SnO₂ were successfully created. They were able to separate photogenerated electron-hole pairs efficiently, and promote photocatalytic activity accordingly. SnO₂/TiO₂ showed the best photocatalytic performance. Under UV or VUV irradiation, the toluene degradation rate of SnO₂/TiO₂ was 100%, and the CO₂ formation rate (k₂) of SnO₂/TiO₂ was approximately 3 times higher than that of P25. Because of the low mineralization rate under UV irradiation, the refractory intermediates generated can occupy active photocatalytic sites on the photocatalyst surface, which hinders the photocatalytic oxidation rate. After 20 h of UV irradiation, the k₂ of SnO₂/TiO₂ decreased from 138.5 to 76.1 mg·m^-3·h^-1, implying that the photocatalysts can be deactivated quickly. VUV irradiation was employed to regenerate the deactivated SnO₂/SnO₂/TiO₂ nanotube composite photocatalysts were synthesized by microwave-assisted hydrothermal and micro-emulsion methods. The photocatalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy with energy-dispersive X-ray spectroscopy (TEM/EDX), and electrochemical techniques. Toluene was chosen as a model pollutant to evaluate the performance, deactivation, and regeneration behavior of the photocatalysts under ultraviolet (UV) and vacuum ultraviolet (VUV) irradiation. The results show that ternary heterojunctions of SnO₂/TiO₂ nanotube composite photocatalysts including anatase TiO₂ (A-TiO₂)/rutile TiO₂ (R-TiO₂), A-TiO₂/SnO₂, and R-TiO₂/SnO₂ were successfully created. They were able to separate photogenerated electron-hole pairs efficiently, and promote photocatalytic activity accordingly. SnO₂/TiO₂ showed the best photocatalytic performance. Under UV or VUV irradiation, the toluene degradation rate of SnO₂/TiO₂ was 100%, and the CO₂ formation rate (k₂) of SnO₂/TiO₂ was approximately 3 times higher than that of P25. Because of the low mineralization rate under UV irradiation, the refractory intermediates generated can occupy active photocatalytic sites on the photocatalyst surface, which hinders the photocatalytic oxidation rate. After 20 h of UV irradiation, the k₂ of SnO₂/TiO₂ decreased from 138.5 to 76.1 mg·m^-3·h^-1, implying that the photocatalysts can be deactivated quickly. VUV irradiation was employed to regenerate the deactivated SnO₂/TiO₂ because reactive species such as ·OH, O₂^-·, O(¹D), O(³P), and O₃ can be generated. These play an important role in the oxidation of refractory intermediates on the photocatalyst surface, and k₂ increased to 143.6 mg·m^-3·h^-1 accordingly. Therefore, UV photodegradation combined with VUV regeneration could be a feasible photocatalytic process because of a synergistic effect between UV and VUV.
- Heterojunction,
- Vacuum ultraviolet,
- Toluene,
- Electron-hole pair,
- Photocatalytic activity
1. [1]
  
  (1) Wang, C. H.; Shao, C. L.; Zhang, X. T.; Liu, Y. C. Inorg. Chem. 2009, 48, 7261. doi: 10.1021/ic9005983
2. [2]
  (2) Chang, S. Y.; Chen, S. F.; Huang, Y. C. J. Phys. Chem. C 2011, 115, 1600. doi: 10.1021/jp109103a
3. [3]
  (3) Zhou, X. F.; Cao, J. L.; Xu, M. F.;Wang, Z. S.; Lu, J. Mater. Res. Bull. 2013, 48, 4942. doi: 10.1016/j.materresbull. 2013.07.031
4. [4]
  (4) Wu, L.; Xing, J.; Hou, Y.; Xiao, F. Y.; Li, Z.; Yang, H. G. Chem. Eur. J. 2013, 19, 8688. doi: 10.1002/chem.201390096
5. [5]
  (5) Smith,W.;Wolcott, A.; Fitzmorris, R. C.; Zhang, J. Z.; Zhao, Y. P. J. Mater. Chem. 2011, 21, 10792. doi: 10.1039/c1jm11629k
6. [6]
  (6) Su, C. Y.; Shao, C. L.; Liu, Y. C. J. Colloid Interface Sci. 2010, 346, 324. doi: 10.1016/j.jcis.2010.02.027
7. [7]
  (7) Wu, Z. Y.; Zhao, G. H.; Zhang, Y. N.; Tian, H. Y.; Li, D. M. J. Phys. Chem. C 2012, 116, 12829. doi: 10.1021/jp300374s
8. [8]
  (8) Chaguetmi, S.; Mammeri, F.; Nowak, S.; Decorse, P.; Lecoq, H.; Gaceur, M.; Naceur, J. B.; Achour, S.; Chtourou, R.; Ammar, S. RSC Adv. 2013, 3, 2572. doi: 10.1039/c2ra21684a
9. [9]
  (9) Jovi, F.; Tomaši, V.; Davidson, A.; Nogier, J. P.; Li,W.; Kosar, V. Chem. Biochem. Eng. Q. 2013, 27, 37.
10. [10]
  (10) Mo, J. H.; Zhang, Y. P.; Xu, Q. J.; Lamson, J. J.; Zhao, R. Y. Atmos. Environ. 2009, 43, 2229. doi: 10.1016/j.atmosenv.2009.01.034
11. [11]
  (11) Jeong, J. Y.; Sekiguchi, K.; Sakamoto, K. Chemosphere 2004, 57, 663. doi: 10.1016/j.chemosphere.2004.05.037
12. [12]
  (12) Huang, H. B.; Leung, D. Y. C.; Li, G. S.; Leung, M. K. H.; Fu, X. L. Catal. Today 2011, 175, 310. doi: 10.1016/j.cattod.2011.04.015
13. [13]
  (13) Zhao,W. R.; Yang, Y. N.; Dai, J. S.; Liu, F. F.;Wang, Y. Chemosphere 2013, 91, 1002. doi: 10.1016/j.chemosphere.2013.01.086
14. [14]
  (14) Chen, S. H.; Xu, Y.; Lu, B. L.;Wu, D. Acta Phys. -Chim. Sin. 2011, 27, 2933. [陈淑海, 徐耀, 吕宝亮, 吴东. 物理化学学报, 2011, 27, 2933.]
15. [15]
  (15) Ou, H. H.; Lo, S. L.; Liao, C. H. J. Phys. Chem. C 2011, 115, 4000. doi: 10.1021/jp1076005
16. [16]
  (16) Zhang, H.; Li, G. R.; An, L. P.; Yan, T. Y.; Gao, X. P.; Zhu, H. Y. J. Phys. Chem. C 2007, 111, 6143. doi:10.1021/jp0702595
17. [17]
  (17) Zhao,W. R.;Wang, Y.; Yang, Y. N.; Tang, J.; Yang, Y. Appl. Catal. B: Environ. 2012, 115, 90.
18. [18]
  (18) Dong, L. F.; Gari, R. R. S.; Li, Z.; Craig, M. M.; Hou, S. F. Carbon 2010, 48, 781. doi: 10.1016/j.carbon.2009.10.027
19. [19]
  (19) Tang, Z. R.; Li, F.; Zhang, Y. H.; Fu, X. Z.; Xu, Y. J. J. Phys. Chem. C 2011, 115, 7880. doi: 10.1021/jp1115838
20. [20]
  (20) Debono, O.; Thevenet, F.; Gravejat, P.; Hequet, V.; Raillard, C.; Lecoq, L. Appl. Catal. B: Environ. 2011, 106, 600. doi: 10.1016/j.apcatb.2011.06.021
21. [21]
  (21) Jankulovska, M.; Berger, T.; Lana-Villarreal, T.; Gómez, R. Electrochim. Acta 2012, 62, 172. doi: 10.1016/j.electacta.2011.12.016
22. [22]
  (22) Komaguchi, K.; Nakano, H.; Araki, A.; Harima, Y. Chem. Phys. Lett. 2006, 428, 338. doi: 10.1016/j.cplett.2006.07.003
23. [23]
  (23) Xing, M. Y.; Zhang, J. L.; Chen, F.; Tian, B. Z. Chem. Commun. 2011, 47, 4947. doi: 10.1039/c1cc10537j
24. [24]
  (24) Zhao, L.; Ran, J. R.; Shu, Z.; Dai, G. T.; Zhai, P. C.;Wang, S. M. Int. J. Photoenergy 2012, 2012, 1. doi: 10.1155/2012/472958
25. [25]
  (25) Huang, H. B.; Li,W. B. Appl. Catal. B: Environ. 2011, 102, 449. doi: 10.1016/j.apcatb.2010.12.025
26. [26]
  (26) Zhao,W. R.; Dai, J. S.; Liu, F. F.; Bao, J. Z.;Wang, Y.; Yang, Y.; Yang, Y. N.; Zhao, D. Y. Sci. Total Environ. 2012, 438, 201. doi: 10.1016/j.scitotenv.2012.08.081
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Performance, Deactivation and Regeneration of SnO2/TiO2 Nanotube Composite Photocatalysts

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通讯作者: 陈斌, bchen63@163.com

Performance, Deactivation and Regeneration of SnO₂/TiO₂ Nanotube Composite Photocatalysts