JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2011, Vol. 41 ›› Issue (1): 58-61.

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Enhanced light harvesting and photocatalytic property of TiO2 architecture derived from butterfly wings

LIU Hui-hui, FAN Tong-xiang *   

  1. State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2010-11-14 Online:2011-02-16 Published:2010-11-14

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Abstract:

Nature’s multi-porous architectures in micro and nano scale were proved to enhance light harvesting. In order to enhance the light harvesting efficiency of TiO2 and improve its photo catalytic property, TiO2 replicas with the wing scale architecture of the butterfly Papilio maackii were synthesized by a bio-template immerse  and  calcine method. The replicas inherited from the template both the inversed V shaped ridges and the nano pore arrays worked together and could enhance the light harvesting efficiency by making an ordered scattering and refraction pathway for the incident light. The photocatalytic properties of  wing architecture TiO2 replicas were tested, and the results showed an obvious improvement compared to normal TiO2 particles.
 

Key words: TiO2, photo catalytic, bio-inspired, mulit-porous architecture, bio-template immerse &, calcine method

[1] XU Qing, LV Wei*. Preparation and properties of TiO2／ZnO Photocatalyst [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2010, 40(4): 72-74.
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