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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-355 |
| Subject |
Synthesis and characterization of layered siloxene sheets and their composites for catalytic applications |
| Authors |
Kyu Hyung Lee, Eung-ryeol Kim, Hee Jung Yang, Seok Huh, NAM HWI HUR*
Department of Chemistry, Sogang University, Korea
|
| Abstract |
Siloxene has a nominal composition of Si6H3(OH)3, in which the Si atoms in the silicon layer are alternately terminated by hydrogen (H) and hydroxyl (OH) groups. The siloxene sheets were prepared by immersing calcium silicide (CaSi2) in concentrated HCl solution at low temperature. They were then combined with graphene oxide sheets by layer-by-layer assembly, followed by the reduction of the assembled material using solid hydrazine. The resulting product, which is a composite of siloxene and reduced graphene oxide sheets, was fully characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, UV-visible spectroscopy, and thermogravimetric analysis. The photocatalytic property of the composite was evaluated under visible-light irradiation, which exhibits excellent photocatalytic activity compared to the siloxane sheet alone. Based on the structural, optical, and electrical properties for the composite, the origin will be presented in detail. In addition, the catalytic properties of the siloxane sheet will also be discussed. |
| E-mail |
khaha@sogang.ac.kr |
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121st General Meeting of the KCS