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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Photocatalytic Water Splitting with Different Facet Oriented ZnO Electrode

2015년 2월 26일 11시 35분 00초
KCS2.O-1 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 09시 : 00분
Oral Presentation for Young International Chemists
저자 및
Amol Uttam Pawar, 강영수*
서강대학교 화학과, Korea
Artificial photosynthesis would be the best prominent way to produce clean and renewable energy. Since last several years many photocatalytic materials have been introduced in artificial photosynthesis [1-3]. The photocatalytic property of those materials depends upon several parameters such as shape, size, photo-active facet etc. ZnO is one of the most appropriate materials in this field (photocatalyst) because of its direct band gap (3.27eV), large excitation binding energy (60 meV) and high electron mobility. It is well known that the properties of ZnO nanostructures strongly depend upon their crystalline structure, morphology, impurity or dopant and defects. The surface energy of ZnO different facets depends upon the atomic arrangement of basic elements such as Zinc and Oxygen, this surface energy can be affect the electron-hole separation. In this sense, the improvement of the photocatalytic activity of ZnO prepared electrode might be achieved by controlling the charge carrier dynamics or the surface catalytic process. Hence, here we describe the hexagonal, pyramidal and rod type ZnO using solvothermal synthesis, which would provide the acceptable structural and surface properties for photocatalytic applications.

[1] Kato H.; Kudo A. J. Phys. Chem. B 2002, 106, 5029-5034.
[2] Fujishima A.; Honda K. Nature 1972, 238, 37-38.
[3] Sayama K.; Mukasa K.; Abe R.; Abe Y.; Arakawa H. Chem. Commun. 2001, 2416-2417.