Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO2/Graphene Composite Materials

doi:10.6023/A19040108

Acta Chim. Sinica ›› 2019, Vol. 77 ›› Issue (6): 520-524.DOI: 10.6023/A19040108 Previous Articles Next Articles

Article

TiO₂/石墨烯复合材料的光生电荷分离调控与光催化产氢性能研究

郭宇^a, 李燕瑞^b, 王成名^a, 龙冉^a, 熊宇杰^a

a 中国科学技术大学化学与材料科学学院合肥微尺度物质科学国家研究中心合肥 230026;
b 西安交通大学国际可再生能源研究中心动力工程多相流国家重点实验室西安 710049

投稿日期:2019-04-01 发布日期:2019-04-30
通讯作者: 李燕瑞, 龙冉, 熊宇杰 E-mail:liyanrui91@mail.xjtu.edu.cn;longran@ustc.edu.cn;yjxiong@ustc.edu.cn
基金资助:
项目受国家重点研发计划（Nos.2017YFA0207301，2017YFA0207302）和国家自然科学基金（Nos.21725102，U1832156，21601173，21573212）资助.

Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO₂/Graphene Composite Materials

Guo Yu^a, Li Yanrui^b, Wang Chengming^a, Long Ran^a, Xiong Yujie^a

a School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026;
b International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049

Received:2019-04-01 Published:2019-04-30
Supported by:
Project supported by the National Key Research & Development Program of China (Nos. 2017YFA0207301, 2017YFA0207302) and the National Natural Science Foundation of China (Nos. 21725102, U1832156, 21601173, 21573212).

1. Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO₂/Graphene Composite Materials.PDF(405KB)

Abstract

Separation of photogenerated charges is one of the key steps in photocatalysis, whose efficiency largely determines the overall photocatalytic performance in water splitting. It is known that the formation of hybrid nanostructures is a promising solution to improve photocatalytic performance. However, the chemical environment difference during the synthesis of hybrid nanostructures may bring additional influencing factors to material systems. In this case, the design and synthesis of well-defined and clean samples are highly important to fundamental investigations. Integrating TiO₂ nanosheets with graphene can enhance the photocatalytic activity of TiO₂ through the effective separation of the photogenerated electrons and holes across the interface formed by C-O bonds. To investigate the influence of photogenerated charge separation on the photocatalytic performance of TiO₂/graphene composites, we modulate the separation of the photogenerated charges by controlling the size and thickness of TiO₂ nanosheets with the same chemical environment, which helps investigate its effect on the photocatalytic performance of TiO₂/graphene composites. Specifically, a series of TiO₂ nanosheets with different thickness are synthesized by controlling the amount of hydrofluoric acid and combined with graphene for photocatalytic hydrogen production. The hybrid nanostructures are formed through a simple and clean process so as to possess a reliable platform for evaluating the relationship between structural parameters and performance in photocatalytic hydrogen production. The experiment results show that the photocatalytic activity of TiO₂/rGO composites increases with the reduction in the thickness of TiO₂ nanosheets. As the thickness of TiO₂ nanosheets decreases, the migration distance of the photo-excited electrons is reduced so as to effectively suppress the recombination of the photo-excited charges. In the meanwhile, the TiO₂/graphene interface is enlarged to promote the separation of the photogenerated charges in TiO₂. As a result, the utilization efficiency of the photogenerated charges has been substantially enhanced. This work demonstrates that modulating the separation of photogenerated charges in TiO₂/graphene composites by controlling the size of TiO₂ nanosheets is an effective strategy for improving the photocatalytic performance of TiO₂/graphene composites.

Key words: TiO₂ nanosheet/graphene, photogenerated charge separation, nanosheet size, electron migration, interface

Cite this article

Guo Yu, Li Yanrui, Wang Chengming, Long Ran, Xiong Yujie. Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO₂/Graphene Composite Materials[J]. Acta Chim. Sinica, 2019, 77(6): 520-524.

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[1] Chiu, W. H.; Lee, K. M.; Hsieh, W. F. J. Power Sources 2011, 196, 3683.
[2] Zhang, Y. H.; Tang, Z. R.; Fu, X. Z.; Xu, Y. J. ACS Nano 2010, 4, 7303.
[3] Perera, S. D.; Mariano, R. G.; Vu, K.; Nour, N.; Seitz, O.; Chabal, Y.; Balkus, K. J. ACS Catal. 2012, 2, 949.
[4] Wang, G. M.; Wang, H. Y.; Ling, Y. C.; Tang, Y. C.; Yang, X. Y.; Fitzmorris, R. C.; Wang, C. C.; Zhang, J. Z.; Li, Y. Nano Lett. 2011, 11, 3026.
[5] Wang, D. H.; Choi, D. W.; Li, J.; Yang, Z. G.; Nie, Z. M.; Kou, R.; Hu, D. H.; Wang, C. M.; Saraf, L. V.; Zhang, J. G.; Aksay, I. A.; Liu, J. ACS Nano 2009, 3, 907.
[6] Chu, W. Y.; Tang, X.; Li, Z.; Lin, J. C.; Qian, J. S. Acta Chim. Sinica 2018, 76, 549(in Chinese). (楚婉怡, 唐笑, 李振, 林景诚, 钱觉时, 化学学报, 2018, 76, 549.)
[7] Konaka, R.; Kasahara, E.; Dunlap, W. C.; Yamamoto, Y.; Chien, K. C.; Inoue, M. Free Radical Bio. Med. 1999, 27, 294.
[8] Miljevic, M.; Geiseler, B.; Bergfeldt, T.; Bockstaller, P.; Fruk, L. Adv. Funct. Mater. 2014, 24, 907.
[9] Shang, L.; Tong, B. A.; Yu, H. J.; Waterhouse, G. I. N.; Zhou, C.; Zhao, Y. F.; Tahir, M.; Wu, L. Z.; Tung, C. H.; Zhang, T. R. Adv. Energy Mater. 2016, 6, 1501241.
[10] An, X. H.; Wang, Y.; Lin, J. J.; Shen, J. N.; Zhang, Z. Z.; Wang, X. X. Sci. Bull. 2017, 62, 599.
[11] Jin, Q. L.; Fujishima, M.; Tada, H. J. Phys. Chem. C 2011, 115, 6478.
[12] Ratanatawanate, C.; Xiong, C. R.; Balkus, K. J. ACS Nano 2008, 2, 1682.
[13] Lee, H.; Leventis, H. C.; Moon, S. J.; Chen, P.; Ito, S.; Haque, S. A.; Torres, T.; Nuesch, F.; Geiger, T.; Zakeeruddin, S. M.; Gratzel, M.; Nazeeruddin, M. K. Adv. Funct. Mater. 2009, 19, 2735.
[14] Asahi, R.; Morikawa, T.; Ohwaki, T.; Aoki, K.; Taga, Y. Science 2001, 293, 269.
[15] Hirakawa, T.; Kamat, P. V. J. Am. Chem. Soc. 2005, 127, 3928.
[16] Xu, C. Y.; Lin, J. Y.; Pan, F. Q.; Deng, B. W.; Wang, Z. H.; Zhou, J. H.; Chen, Y.; Ma, J. C.; Gu, Z. E.; Zhang, Y. W. Acta Chim. Sinica 2017, 75, 699(in Chinese). (许辰宇, 林伽毅, 潘富强, 邓博文, 王智化, 周俊虎, 陈云, 马京程, 顾志恩, 张彦威, 化学学报, 2017, 75, 699.)
[17] Du, P. J.; Su, T. M.; Luo, X.; Zhou, X. T.; Qin, Z. Z.; Ji, H. B.; Chen, J. H. Chinese J. Chem. 2018, 36, 538.
[18] Subramanian, V.; Wolf, E.; Kamat, P. V. J. Phys. Chem. B 2001, 105, 11439.
[19] Yen, C. Y.; Lin, Y. F.; Hung, C. H.; Tseng, Y. H.; Ma, C. C.; Chang, M. C.; Shao, H. Nanotechnology 2008, 19.
[20] Zhang, X. Y.; Li, H. P.; Cui, X. L.; Lin, Y. H. J. Mater. Chem. 2010, 20, 2801.
[21] Yang, N.; Liu, Y.; Wen, H.; Tang, Z.; Zhao, H.; Li, Y.; Wang, D. ACS Nano 2013, 7, 1504.
[22] Gu, L. A.; Wang, J. Y.; Cheng, H.; Zhao, Y. Z.; Liu, L. F.; Han, X. J. ACS Appl. Mater. Inter. 2013, 5, 3085.
[23] Yang, H. G.; Sun, C. H.; Qiao, S. Z.; Zou, J.; Liu, G.; Smith, S. C.; Cheng, H. M.; Lu, G. Q. Nature 2008, 453, 638.
[24] Sun, L.; Zhao, Z. L.; Zhou, Y. C.; Liu, L. Nanoscale 2012, 4, 613.
[25] Shah, M. S. A. S.; Park, A. R.; Zhang, K.; Park, J. H.; Yoo, P. J. ACS Appl. Mater. Inter. 2012, 4, 3893.
[26] Zhu, C. Z.; Guo, S. J.; Wang, P.; Xing, L.; Fang, Y. X.; Zhai, Y. M.; Dong, S. J. Chem. Commnu. 2010, 46, 7148.
[27] Zhang, W. X.; Cui, J. C.; Tao, C. A.; Wu, Y. G.; Li, Z. P.; Ma, L.; Wen, Y. Q.; Li, G. T. Angew. Chem. Int. Ed. 2009, 48, 5864.
[28] Ni, Z. H.; Wang, Y. Y.; Yu, T.; Shen, Z. X. Nano Res. 2008, 1, 273.
[29] Liang, Y. Y.; Wang, H. L.; Casalongue, H. S.; Chen, Z.; Dai, H. J. Nano Res. 2010, 3, 701.
[30] Pan, J.; Liu, G.; Lu, G. M.; Cheng, H. M. Angew. Chem. Int. Ed. 2011, 50, 2133.
[31] Selloni, A. Nat. Mater. 2008, 7, 613.
[32] Liu, S. W.; Yu, J. G.; Jaroniec, M. Chem. Mater. 2011, 23, 4085.
[33] Klepser, B. M.; Bartlett, B. M. J. Am. Chem. Soc. 2014, 136, 1694.

TiO₂/石墨烯复合材料的光生电荷分离调控与光催化产氢性能研究

Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO₂/Graphene Composite Materials

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TiO2/石墨烯复合材料的光生电荷分离调控与光催化产氢性能研究