(Invited) Photocatalysis Based on Plasmon-Induced Charge Separation

Tuesday, 30 May 2017: 10:40
Grand Salon A - Section 6 (Hilton New Orleans Riverside)
T. Tatsuma, K. C. Kao, L. Wu, Y. Kuroiwa, and H. Nishi (Institute of Industrial Science, University of Tokyo)
Plasmon-induced charge separation (PICS) occurs at the interface between plasmonic nanostructures of gold, silver, or copper and a semiconductor (typically titanium oxide),1-3 on the basis of carrier transfer from the nanostructure to the semiconductor due to external photoelectric effects including hot carrier injection, or interfacial electron transition.4 We reported PICS for the first time more than 10 years ago1-3 and studied its mechanisms3-7 and applications.1,3,8,9 The applications of PICS include photocatalysis, in particular hydrogen evolution from water. We also work on photocatalytic hydrogen evolution based on PICS by using some different systems including gold nanoparticle/titanium oxide systems and gold halfshell/titanium oxide systems.10

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2. Y. Tian and T. Tatsuma, Chem. Commun., 2004, 1810.

3. T. Tatsuma, Bull. Chem. Soc. Jpn., 86, 1 (2013) [account].

4. E. Kazuma and T. Tatsuma, Adv. Mater. Interfaces, 1, 1400066 (2014).

5. E. Kazuma, N. Sakai, and T. Tatsuma, Chem. Commun., 47, 5777 (2011).

6. H. Nishi and T. Tatsuma, Angew. Chem. Int. Ed., 55, 10771 (2016).

7. K. Saito, I. Tanabe, and T. Tatsuma, J. Phys. Chem. Lett., 7, 4363 (2016).

8. Y. Ohko, T. Tatsuma, T. Fujii, K. Naoi, C. Niwa, Y. Kubota, and A. Fujishima, Nat. Mater., 2, 29 (2003).

9. Y. Takahashi and T. Tatsuma, Appl. Phys. Lett., 99, 182110 (2011).

10. L. Wu, H. Nishi, and T. Tatsuma, APL Mater., 3, 104406 (2015).