title: A Conductive Hybridization Matrix of RuO2 Two-Dimensional Nanosheets: A Hybrid-Type Photocatalyst.
abstract: A universal methodology to efficiently improve the photocatalyst performance of semiconductors was developed by employing exfoliated RuO2 two-dimensional nanosheets as a conducting hybridization matrix. The hybridization with a RuO2 nanosheet is easily achieved by crystal growth or electrostatically derived anchoring of semiconductor nanocrystals on the RuO2 nanosheet. An enhanced chemical interaction of inorganic semiconductor with hydrophilic RuO2 nanosheet is fairly effective in optimizing their photocatalytic activity and photostability by the enhancement of charge separation and charge mobility. The RuO2 -containing nanohybrids show much better photocatalyst functionalities than do the graphene-containing ones. The present study clearly demonstrates that hydrophilic RuO2 nanosheets are superior hybridization matrices, over the widely used hydrophobic graphene nanosheets, for exploring new efficient hybrid-type photocatalysts.
authors.affiliation: Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea.
authors.forename: Jang Mee
authors.initials: JM
authors.lastname: Lee
authors.affiliation: Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea.
authors.forename: Eun Kyung
authors.initials: EK
authors.lastname: Mok
authors.affiliation: Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea.
authors.forename: Seul
authors.initials: S
authors.lastname: Lee
authors.affiliation: National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea.
authors.forename: Nam-Suk
authors.initials: NS
authors.lastname: Lee
authors.affiliation: Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.
authors.forename: Lamjed
authors.initials: L
authors.lastname: Debbichi
authors.affiliation: Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea. linus16@kaist.ac.kr.
authors.forename: Hyungjun
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea. hwangsju@ewha.ac.kr.
authors.forename: Seong-Ju
authors.initials: SJ
authors.lastname: Hwang
keywords: conducting materials; graphene; nanostructures; photocatalysis; semiconductors