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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 OPUGakuen-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.
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.
isolated Ti-oxidesingle-site species
Ti4+
O2-O2- O2-
O2-
N=4.2R=1.83
Ti-O
Energy / eV4960 5000 0 2 4 6
Distance / Å
Wavelength / nm
inte
nsity
/ a.
u.
200 300 400 500 600
absorption photoluminescence
Wavelength / nm
Ti4+
O2-O2- O2-
O2-
Ti4+
O2- O2-
O2-
nano-clusters of Ti-oxides
charge transferexcited state
380 nm (UV light)
Conduction band
Valence band
320 nm 250～300nm
+
-band gap narrowing
ground state
200 300 400 500
hCB e-
VB h+(Ti3+-O-)*
(Ti4+- O2-)h
Design of Highly Active Titanium Oxide Design of Highly Active Titanium Oxide PhotocatalystsPhotocatalysts
(1) highly efficient(1) highly efficient(2) visible light responsive(2) visible light responsive(3) no binders (anchored or fixed)(3) no binders (anchored or fixed)
（Single site photocatalysts）
（visible light responsive TiO2 thin films）
semiconductingTiO2 particles
anataserutile
550 nm (Visible light)
0
50
100
200 400 600 800
200℃400℃
600℃
Tra
nsm
ittan
ce /
%
Wavelength / nm
Metal ion-implantation
Anion-doping
UV absorption
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).