NOTICE TO AUTHORS:
 Please submit an electronic copy (in WORD or PDF format) of paper with
key graphs (and a photo of author(s) is encouraged, see attached sample)
to Dr. Chuanyi Wang at "[email protected]";
 Each paper should include the following sections: Title and
Authors/Affiliation (bold and center); Keywords (align text to the left), Brief
Introduction/Objectives, Approach and Results, Summary and Conclusions,
List of References
 Paper length up to 2 pages is recommended.
 The graphs can be conveniently embedded in the text
 New Times Roman; 12 points; single space; 1 inch margin; paragraphs are
separated by a blank line, text should be justified; arrange the text in single
column
 The paper submitted will be compiled into a proceedings
 Selected papers will be recommended for publication in Research on
Chemical Intermediates (Springer); New submission and peer review may
be required
Sample Abstract:
Challenges in the Utilization of Unlimited Sunlight
Energy to Sustain Our Better and Safe Environment
--Investigations of highly active Ti-oxide based photo-functional
materials from molecular level to bulk semiconductor thin films-Masakazu ANPO*
Osaka Prefecture University (OPU)
Advisor to President (ex-Executive Director / Vice President)
Director of R&D Center for Plant Factory of OPU
Gakuen-cho, Sakai, Osaka 599-8531, JAPAN. E-mail: [email protected]
Environmentally harmonious, clean and safe scientific technologies to address energy as well as
pollution and climatic change are the subject of much research and discussion, especially, since March 11,
2011. Photocatalysis, in which the abundant and clean energy of sunlight could be harnessed, would be a
major advance in the development of sustainable, non-hazardous and economic technologies. We have
successfully developed Ti-oxide photocatalysts which enable the absorption of visible light (longer than
400 nm) and operate as efficient and effective environmentally-friendly photocatalytic materials.
The talk presents the results obtained in the different types of photocatalytic systems:1-3) 1) highly
dispersed Ti-oxide single site photocatalysts prepared within zeolite frameworks (Ti/zeolite) for the
reduction of CO2 with H2O (artificial photosynthesis) and 2) visible light-responsive TiO2 thin film
photocatalysts for the decomposition of H2O with a separate evolution of H2 and O2 and their potential
applications into solid solar cells and fuel cells under sunlight irradiation.
Design of Highly Active Titanium Oxide Photocatalysts
UV absorption
(Ti
(1) highly efficient
(2) visible light responsive
(3) no binders (anchored or fixed)
h
-
-O )*
VB h+
h
(Ti
4+
2-
-O )
200
300
400
Wavelength / nm
500
200
300
400
500
600
Wavelength / nm
Conduction band
Transmittance / %
photoluminescence
intensity / a. u.
absorption
CB e3+
charge transfer
excited state
O2-
band gap
narrowing
200℃
400℃
600℃
Wavelength / nm
（visible light responsive
TiO2 thin films）
Ti4+
-
O2- O2-
550 nm
(Visible light)
380 nm
(UV light)
isolated Ti-oxide
single-site species
+
ground state
Valence band
Metal ion-implantation
O2Anion-doping
rutile
O2-
250～
300nm
320 nm
O2-
O2-
Ti4+
Ti4+
O2-
O2-
O2-
Ti-O
N=4.2
R=1.83
O2-
anatase
semiconducting
TiO2 particles
（Single site
photocatalysts）
nano-clusters of Ti-oxides
4960 5000
Energy / eV
0
2
4
6
Distance / Å
Fig. Relationship between the structures of various Ti-oxide based photocatalysts and their energy states
1) M. Anpo and P. V. Kamat, “Environmentally Benign Photocatalysts –Applications of Titanium
Oxide-based Materials”, Springer, USA, (2011), and references therein.
2) M. Anpo, J. CO2 Utilization, 1, 8 (2013), and references therein.
3) Y. Horiuchi, M.Takeuchi, M. Matsuoka, M. Anpo, Phys. Chem. Chem. Phys., 15, 13243 (2013).