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]
  Pengyu Dong , Yue Jiang , Zhengchi Yang , Licheng Liu , Gu Li , Xinyang Wen , Zhen Wang , Xinbo Shi , Guofu Zhou , Jun-Ming Liu , Jinwei Gao . NbSe₂纳米片优化钙钛矿太阳能电池的埋底界面. Acta Physico-Chimica Sinica, 2025, 41(3): 2407025-. doi: 10.3866/PKU.WHXB202407025
2. [2]
  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
3. [3]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . 表面硫物种对钯-硫纳米片加氢性能的影响. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-. doi: 10.3866/PKU.WHXB202309043
4. [4]
  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
5. [5]
  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
6. [6]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . 熔融中间体运输导向合成富氨基g-C₃N₄纳米片用于高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-. doi: 10.3866/PKU.WHXB202406021
7. [7]
  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): 100031-. doi: 10.3866/PKU.WHXB202402016
8. [8]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . 两步焙烧法制备大比表面积和结晶性增强超薄g-C₃N₄纳米片及其高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-. doi: 10.3866/PKU.WHXB202406019
9. [9]
  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): 100013-. doi: 10.3866/PKU.WHXB202309036
10. [10]
  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
11. [11]
  Jizhou Liu , Chenbin Ai , Chenrui Hu , Bei Cheng , Jianjun Zhang . 六氯锡酸铵促进钙钛矿太阳能电池界面电子转移及其飞秒瞬态吸收光谱研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2402006-. doi: 10.3866/PKU.WHXB202402006
12. [12]
  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): 100038-. doi: 10.3866/PKU.WHXB202408015
13. [13]
  Mengfei He , Chao Chen , Yue Tang , Si Meng , Zunfa Wang , Liyu Wang , Jiabao Xing , Xinyu Zhang , Jiahui Huang , Jiangbo Lu , Hongmei Jing , Xiangyu Liu , Hua Xu . Epitaxial Growth of Nonlayered 2D MnTe Nanosheets with Thickness-Tunable Conduction for p-Type Field Effect Transistor and Superior Contact Electrode. Acta Physico-Chimica Sinica, 2025, 41(2): 100016-. doi: 10.3866/PKU.WHXB202310029
14. [14]
  Xinlong WANG , Zhenguo CHENG , Guo WANG , Xiaokuen ZHANG , Yong XIANG , Xinquan WANG . Enhancement of the fragile interface of high voltage LiCoO₂ by surface gradient permeation of trace amounts of Mg/F. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 571-580. doi: 10.11862/CJIC.20230259
15. [15]
  Xiufang Wang , Donglin Zhao , Kehua Zhang , Xiaojie Song . “Preparation of Carbon Nanotube/SnS₂ Photoanode Materials”: A Comprehensive University Chemistry Experiment. University Chemistry, 2024, 39(4): 157-162. doi: 10.3866/PKU.DXHX202308025
16. [16]
  Zijuan LI , Xuan LÜ , Jiaojiao CHEN , Haiyang ZHAO , Shuo SUN , Zhiwu ZHANG , Jianlong ZHANG , Yanling MA , Jie LI , Zixian FENG , Jiahui LIU . Synthesis of visual fluorescence emission CdSe nanocrystals based on ligand regulation. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 308-320. doi: 10.11862/CJIC.20240138
17. [17]
  Xiaxue Chen , Yuxuan Yang , Ruolin Yang , Yizhu Wang , Hongyun Liu . Adjustable Polychromatic Fluorescence: Investigating the Photoluminescent Properties of Copper Nanoclusters. University Chemistry, 2024, 39(9): 328-337. doi: 10.3866/PKU.DXHX202308019
18. [18]
  Zeyuan WANG , Songzhi ZHENG , Hao LI , Jingbo WENG , Wei WANG , Yang WANG , Weihai SUN . Effect of I₂ interface modification engineering on the performance of all-inorganic CsPbBr₃ perovskite solar cells. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1290-1300. doi: 10.11862/CJIC.20240021
19. [19]
  Xiaoyao YIN , Wenhao ZHU , Puyao SHI , Zongsheng LI , Yichao WANG , Nengmin ZHU , Yang WANG , Weihai SUN . Fabrication of all-inorganic CsPbBr₃ perovskite solar cells with SnCl₂ interface modification. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 469-479. doi: 10.11862/CJIC.20240309
20. [20]
  Yan LIU , Jiaxin GUO , Song YANG , Shixian XU , Yanyan YANG , Zhongliang YU , Xiaogang HAO . Exclusionary recovery of phosphate anions with low concentration from wastewater using a CoNi-layered double hydroxide/graphene electronically controlled separation film. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1775-1783. doi: 10.11862/CJIC.20240043

Get Citation

PDF

XML

Metrics

PDF Downloads(10)
Abstract views(933)
HTML views(175)

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