Citation: Guo Yu, Li Yanrui, Wang Chengming, Long Ran, Xiong Yujie. Photogenerated Charge Separation and Photocatalytic Hydrogen Production of TiO₂/Graphene Composite Materials[J]. Acta Chimica Sinica, ;2019, 77(6): 520-524. doi: 10.6023/A19040108 shu

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

Corresponding author: Li Yanrui, liyanrui91@mail.xjtu.edu.cn Long Ran, longran@ustc.edu.cn Xiong Yujie, yjxiong@ustc.edu.cn
Received Date: 1 April 2019
Available Online: 30 June 2019
Fund Project: 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)the National Natural Science Foundation of China 21601173the National Natural Science Foundation of China U1832156the National Key Research & Development Program of China 2017YFA0207301the National Key Research & Development Program of China 2017YFA0207302the National Natural Science Foundation of China 21573212the National Natural Science Foundation of China 21725102

Figures(6)

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.
- TiO₂ nanosheet/graphene,
- photogenerated charge separation,
- nanosheet size,
- electron migration,
- interface
1. [1]
  Chiu, W. H.; Lee, K. M.; Hsieh, W. F. J. Power Sources 2011, 196, 3683. doi: 10.1016/j.jpowsour.2010.12.063
2. [2]
  Zhang, Y. H.; Tang, Z. R.; Fu, X. Z.; Xu, Y. J. ACS Nano 2010, 4, 7303. doi: 10.1021/nn1024219
3. [3]
  Perera, S. D.; Mariano, R. G.; Vu, K.; Nour, N.; Seitz, O.; Chabal, Y.; Balkus, K. J. ACS Catal. 2012, 2, 949. doi: 10.1021/cs200621c
4. [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. doi: 10.1021/nl201766h
5. [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. doi: 10.1021/nn900150y
6. [6]
  Chu, W. Y.; Tang, X.; Li, Z.; Lin, J. C.; Qian, J. S. Acta Chim. Sinica 2018, 76, 549(in Chinese).
7. [7]
  Konaka, R.; Kasahara, E.; Dunlap, W. C.; Yamamoto, Y.; Chien, K. C.; Inoue, M. Free Radical Bio. Med. 1999, 27, 294. doi: 10.1016/S0891-5849(99)00050-7
8. [8]
  Miljevic, M.; Geiseler, B.; Bergfeldt, T.; Bockstaller, P.; Fruk, L. Adv. Funct. Mater. 2014, 24, 907. doi: 10.1002/adfm.v24.7
9. [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. doi: 10.1002/aenm.201501241
10. [10]
  An, X. H.; Wang, Y.; Lin, J. J.; Shen, J. N.; Zhang, Z. Z.; Wang, X. X. Sci. Bull. 2017, 62, 599. doi: 10.1016/j.scib.2017.03.025
11. [11]
  Jin, Q. L.; Fujishima, M.; Tada, H. J. Phys. Chem. C 2011, 115, 6478. doi: 10.1021/jp201131t
12. [12]
  Ratanatawanate, C.; Xiong, C. R.; Balkus, K. J. ACS Nano 2008, 2, 1682. doi: 10.1021/nn800141e
13. [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. doi: 10.1002/adfm.v19:17
14. [14]
  Asahi, R.; Morikawa, T.; Ohwaki, T.; Aoki, K.; Taga, Y. Science 2001, 293, 269. doi: 10.1126/science.1061051
15. [15]
  Hirakawa, T.; Kamat, P. V. J. Am. Chem. Soc. 2005, 127, 3928. doi: 10.1021/ja042925a
16. [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). doi: 10.11862/CJIC.2017.051
17. [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. doi: 10.1002/cjoc.v36.6
18. [18]
  Subramanian, V.; Wolf, E.; Kamat, P. V. J. Phys. Chem. B 2001, 105, 11439. doi: 10.1021/jp011118k
19. [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. [20]
  Zhang, X. Y.; Li, H. P.; Cui, X. L.; Lin, Y. H. J. Mater. Chem. 2010, 20, 2801. doi: 10.1039/b917240h
21. [21]
  Yang, N.; Liu, Y.; Wen, H.; Tang, Z.; Zhao, H.; Li, Y.; Wang, D. ACS Nano 2013, 7, 1504. doi: 10.1021/nn305288z
22. [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. doi: 10.1021/am303274t
23. [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. doi: 10.1038/nature06964
24. [24]
  Sun, L.; Zhao, Z. L.; Zhou, Y. C.; Liu, L. Nanoscale 2012, 4, 613. doi: 10.1039/C1NR11411E
25. [25]
  Shah, M. S. A. S.; Park, A. R.; Zhang, K.; Park, J. H.; Yoo, P. J. ACS Appl. Mater. Inter. 2012, 4, 3893. doi: 10.1021/am301287m
26. [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. doi: 10.1039/c0cc01459a
27. [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. doi: 10.1002/anie.v48:32
28. [28]
  Ni, Z. H.; Wang, Y. Y.; Yu, T.; Shen, Z. X. Nano Res. 2008, 1, 273. doi: 10.1007/s12274-008-8036-1
29. [29]
  Liang, Y. Y.; Wang, H. L.; Casalongue, H. S.; Chen, Z.; Dai, H. J. Nano Res. 2010, 3, 701. doi: 10.1007/s12274-010-0033-5
30. [30]
  Pan, J.; Liu, G.; Lu, G. M.; Cheng, H. M. Angew. Chem. Int. Ed. 2011, 50, 2133. doi: 10.1002/anie.v50.9
31. [31]
  Selloni, A. Nat. Mater. 2008, 7, 613. doi: 10.1038/nmat2241
32. [32]
  Liu, S. W.; Yu, J. G.; Jaroniec, M. Chem. Mater. 2011, 23, 4085. doi: 10.1021/cm200597m
33. [33]
  Klepser, B. M.; Bartlett, B. M. J. Am. Chem. Soc. 2014, 136, 1694. doi: 10.1021/ja4086808
1. [1]
  Tao Xu , Wei Sun , Tianci Kong , Jie Zhou , Yitai Qian . Stable Graphite Interface for Potassium Ion Battery Achieving Ultralong Cycling Performance. Acta Physico-Chimica Sinica, 2024, 40(2): 2303021-0. doi: 10.3866/PKU.WHXB202303021
2. [2]
  Xuechen Hu , Qiuying Xia , Fan Yue , Xinyi He , Zhenghao Mei , Jinshi Wang , Hui Xia , Xiaodong Huang . Electrochemical Characteristics of LiNbO₃ Anode Film and Its Applications in All-Solid-State Thin-Film Lithium-Ion Battery. Acta Physico-Chimica Sinica, 2024, 40(2): 2309046-0. doi: 10.3866/PKU.WHXB202309046
3. [3]
  Pengyu Dong , Yue Jiang , Zhengchi Yang , Licheng Liu , Gu Li , Xinyang Wen , Zhen Wang , Xinbo Shi , Guofu Zhou , Jun-Ming Liu , Jinwei Gao . NbSe₂ Nanosheets Improved the Buried Interface for Perovskite Solar Cells. Acta Physico-Chimica Sinica, 2025, 41(3): 2407025-0. doi: 10.3866/PKU.WHXB202407025
4. [4]
  Fanpeng Meng , Fei Zhao , Jingkai Lin , Jinsheng Zhao , Huayang Zhang , Shaobin Wang . Optimizing interfacial electric fields in carbon nitride nanosheet/spherical conjugated polymer S-scheme heterojunction for hydrogen evolution. Acta Physico-Chimica Sinica, 2025, 41(8): 100095-0. doi: 10.1016/j.actphy.2025.100095
5. [5]
  Yue Zhang , Bao Li , Lixin Wu . GO-Assisted Supramolecular Framework Membrane for High-Performance Separation of Nanosized Oil-in-Water Emulsions. Acta Physico-Chimica Sinica, 2024, 40(5): 2305038-0. doi: 10.3866/PKU.WHXB202305038
6. [6]
  Gaopeng Liu , Lina Li , Bin Wang , Ningjie Shan , Jintao Dong , Mengxia Ji , Wenshuai Zhu , Paul K. Chu , Jiexiang Xia , Huaming Li . Construction of Bi Nanoparticles Loaded BiOCl Nanosheets Ohmic Junction for Photocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(7): 2306041-0. doi: 10.3866/PKU.WHXB202306041
7. [7]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
8. [8]
  Huanhuan XIE , Yingnan SONG , Lei LI . Two-dimensional single-layer BiOI nanosheets: Lattice thermal conductivity and phonon transport mechanism. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 702-708. doi: 10.11862/CJIC.20240281
9. [9]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . Surface Sulfur Species Influence Hydrogenation Performance of Palladium-Sulfur Nanosheets. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-0. doi: 10.3866/PKU.WHXB202309043
10. [10]
  Jiayu Tang , Jichuan Pang , Shaohua Xiao , Xinhua Xu , Meifen Wu . Improvement for Measuring Transference Numbers of Ions by Moving-Boundary Method. University Chemistry, 2024, 39(5): 193-200. doi: 10.3866/PKU.DXHX202311021
11. [11]
  Zehao Zhang , Zheng Wang , Haibo Li . Preparation of 2D V₂O₃@Pourous Carbon Nanosheets Derived from V₂CF_x MXene for Capacitive Desalination. Acta Physico-Chimica Sinica, 2024, 40(8): 2308020-0. doi: 10.3866/PKU.WHXB202308020
12. [12]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
13. [13]
  Qin Li , Huihui Zhang , Huajun Gu , Yuanyuan Cui , Ruihua Gao , Wei-Lin Dai . In situ Growth of Cd_0.5Zn_0.5S Nanorods on Ti₃C₂ MXene Nanosheet for Efficient Visible-Light-Driven Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2025, 41(4): 2402016-0. doi: 10.3866/PKU.WHXB202402016
14. [14]
  Yang Li , Jiachen Li , Daidi Fan . 二硫化钼纳米片的制备及其纳米酶性能探究——介绍一个大学化学综合实验. University Chemistry, 2025, 40(8): 233-240. doi: 10.12461/PKU.DXHX202410016
15. [15]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . Remarkable Photocatalytic H₂O₂ Production Efficiency over Ultrathin g-C₃N₄ Nanosheet with Large Surface Area and Enhanced Crystallinity by Two-Step Calcination. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-0. doi: 10.3866/PKU.WHXB202406019
16. [16]
  Qi Wu , Changhua Wang , Yingying Li , Xintong Zhang . Enhanced photocatalytic synthesis of H₂O₂ by triplet electron transfer at g-C₃N₄@BN van der Waals heterojunction interface. Acta Physico-Chimica Sinica, 2025, 41(9): 100107-0. doi: 10.1016/j.actphy.2025.100107
17. [17]
  Zhuoyan Lv , Yangming Ding , Leilei Kang , Lin Li , Xiao Yan Liu , Aiqin Wang , Tao Zhang . Light-Enhanced Direct Epoxidation of Propylene by Molecular Oxygen over CuO_x/TiO₂ Catalyst. Acta Physico-Chimica Sinica, 2025, 41(4): 2408015-0. doi: 10.3866/PKU.WHXB202408015
18. [18]
  Qiangqiang SUN , Pengcheng ZHAO , Ruoyu WU , Baoyue CAO . Multistage microporous bifunctional catalyst constructed by P-doped nickel-based sulfide ultra-thin nanosheets for energy-efficient hydrogen production from water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1151-1161. doi: 10.11862/CJIC.20230454
19. [19]
  Shiyang He , Dandan Chu , Zhixin Pang , Yuhang Du , Jiayi Wang , Yuhong Chen , Yumeng Su , Jianhua Qin , Xiangrong Pan , Zhan Zhou , Jingguo Li , Lufang Ma , Chaoliang Tan . Pt Single-Atom-Functionalized 2D Al-TCPP MOF Nanosheets for Enhanced Photodynamic Antimicrobial Therapy. Acta Physico-Chimica Sinica, 2025, 41(5): 100046-0. doi: 10.1016/j.actphy.2025.100046
20. [20]
  Chongjing Liu , Yujian Xia , Pengjun Zhang , Shiqiang Wei , Dengfeng Cao , Beibei Sheng , Yongheng Chu , Shuangming Chen , Li Song , Xiaosong Liu . Understanding Solid-Gas and Solid-Liquid Interfaces through Near Ambient Pressure X-Ray Photoelectron Spectroscopy. Acta Physico-Chimica Sinica, 2025, 41(2): 2309036-0. doi: 10.3866/PKU.WHXB202309036

Get Citation

PDF

XML

Metrics

PDF Downloads(10)
Abstract views(1370)
HTML views(341)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

Metrics

通讯作者: 陈斌, bchen63@163.com

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