Photocatalysis International Research CenterTERMS：April 1st ,2013～March 31th,2018Director

Akira Fujishima Tokyo University of Science, President

Deputy Director Atsuo Yasumori Dept. of Materials Science & Technology, Professor

Members Masahiko Abe Research Institute for Science & Technology, Professor

Akihiko Kudo Dept. of Applied Chemistry, Professor

Shinichi Komaba Dept. of Applied Chemistry, Professor

Yuichi Negishi Dept. of Applied Chemistry, Professor

Makoto Yuasa Dept. of Pure and Applied Chemistry, Professor

Yasushi Idemoto Dept. of Pure and Applied Chemistry, Professor

Hideki Sakai Dept. of Pure and Applied Chemistry, Professor

Koji Arimitsu Dept. of Pure and Applied Chemistry, Professor

Masanori Hayase Dept. of Mechanical Engineering, Professor

Shinichi Satake Dept. of Applied Electronics, Professor

Chiaki Terashima Research Institute for Science & Technology, Assoc. Prof.

Ken-ichi Katsumata Research Institute for Science & Technology, Assoc. Prof.

Kazuya Nakata Dept. of Applied Biological Science, Assoc. Prof.

Kenjiro Fujimoto Dept. of Pure and Applied Chemistry, Assoc. Prof.

Tomonori Suzuki Liberal Arts, Faculty of Science and Technology, Assoc. Prof.

Hiroshi Wada Dept. of Pharmacy, Assoc. Prof.

Akihide Iwase Dept. of Applied Chemistry, Junior Assoc. Prof.

Isao Shitanda Dept. of Pure and Applied Chemistry, Junior Assoc. Prof.

Takeshi Kondo Dept. of Pure and Applied Chemistry, Junior Assoc. Prof.

Naoto Kitamura Dept. of Pure and Applied Chemistry, Junior Assoc. Prof.

Norihiro Suzuki Research Institute for Science & Technology , Asst. Prof.

Naoya Ishida Dept .of Pure and Applied Chemistry, Asst. Prof.

Masahiro Furutani Dept .of Pure and Applied Chemistry , Asst. Prof.

Yasuyuki Watanabe Tokyo University of Science, Suwa, Professor

(Visiting Professor)Yuko Morito U-VIX Corporation , COE

Masahiko Ikekita Tokyo University of Science, Yamaguchi, Director

Yasuaki Einaga Keio University, Professor

Nobuhiro Hanada Tsurumi University, Professor

Kazuhito Satomura Tsurumi University, Professor

Hiroshi Uetsuka Asahi Diamond Industrial Co.,Ltd.,

Research and Development Center, General Manager

(Visiting Associate Professor)Keita Ikeue Tokyo University of Science, Yamaguchi, Assoc. Prof.

Satoshi Horikoshi Sophia University, Assoc. Prof.

Hirobumi Shibata Chiba Institute of Technology, Assoc. Prof.

Masuki Kawamoto RIKEN, Senior Research Scientist

Tsuyoshi Ochiai Kanagawa Institute of Industrial Science and Technology,

Senior Researcher

(Postdoctoral Fellow )Nitish Roy Research Institute for Science & Technology

Yukihiro Nakabayashi Research Institute for Science & Technology

PurposeThrough basic and practical R&Ds of self-cleaning, environmental cleanup, and artificial photosynthesis, we aim to heave photocatalytic technology to a next stage.

Research themes

Present situation and future prospectBased on the Joint Usage/Research Centerauthorized by MEXT, we reorganize PIRC forfurther development.

For eco-friendly society For safe and healthy society

For comfortable space

・Polymer glass with photocatalyst・Insulating paint with photocatalyst・Highly efficient water splitting photocatalyst・CO2 to fuel process

・Mobility application・Sterilization for water/air purification・Photocatalytic mosquito trap system・Plant factory and production engineering of useful plant

・Photocatalyst for interior treatments・Light-guiding system to indoors

Selection committee of public offering

RIST Steering committee for RIST

Research Promotion Office

Artificial photosynthesis Gr

Environmental cleanup Gr

Research Group

PIRC

Plant factory PT

Mobility PT

Utility teamPIRC(Joint Usage/Research Center)

Steering committee for PIRC

Steering committee for joint usage

Evaluation committee

WG for research theme establishment

WG for facility management

Self-cleaning Gr Light guide PT

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Research Highlight①Photocatalytic production of rare sugars

Rare sugars

xylitolcavity

protectionallose

Inhibitionof cancer

cell growth

Inhibition of growth of cancer cellAllose Xylitol

L-arabinose

6,000円 / 25 g

TiO2

UV

L-erythrose

23,000,000円 / 25 g 1,600円 / 25 g

TiO2

UV

D-solbitol L-glose22,500,000円 / 25 g

H

HOH2C

HO H

H OHO

O

D-arabino-1,4-lactoneFructose

1,600円 / 25 g 640,000円 / 25 g

Cavity protection

Rare sugars can be used for medicines and healthy foods

TiO2

UV

One-step production of rare sugars by use of photocatalysisResearch Highlight②Attempt on the protection of cultural properties by photocatalystShrines and Temples of Nikko (UNESCO World Heritage Site)

Decolorization of urushi by UV Generation of mold on colored area (glue)

Aged deterioration of urushi (lacquer)painted structures

Titanium dioxide (TiO2) coating on urushi layer

Difficulty in maintaining the appearance Wall of Tosho-gu Honden

Keeping the appearance by the coated thin layer’s transparencyProtection of urushi layer by UV absorptionDecomposition of mold by an oxidation power

Urushi layer after TiO2 coating

Evaluation of the maintenance of urushi layer’s appearance from a weathering test Decomposition test of mold (taken from Tosho-gu and identified)

Enlarged Picture

We expect

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