Preparation of Au-loaded niobate nanosheets and their plasmon-driven photochemical reaction |
| |
| Authors: | Teruyuki Nakato Toshihiro Kasai |
| |
| Affiliation: | 1. Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China;2. Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China;3. School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China;4. SORST, Japan Science and Technology (JST), Japan;1. LCIS/GREENMAT, Department of Chemistry, Chemistry Institute B6, University of Liège, 4000 Liège, Belgium;2. Laboratoire de Chimie Analytique Inorganique, Department of Chemistry, Chemistry Institute B6, University of Liège, 4000 Liège, Belgium;1. Laboratory of Photochemistry and Materials Science, LAFOT-CM, Instituto de Química, Universidade Federal de Uberlandia, 38400-902, Uberlandia, MG, Brazil;2. Laboratório de Pesquisa em Polímeros e Nanomateriais, Instituto de Química, Universidade de Brasília, 70904-970, Brasília-DF, Brazil;1. Université de Lyon, F-69622 Lyon, France;2. Université Lyon 1, Villeurbanne, CNRS, UMR 5007, LAGEP-CPE, 43 Boulevarde 11 Novembre 1918, F-69622 Villeurbanne, France;3. Université de Savoie, SYMME, BP 80439, 74944, Annecy Le Vieux Cedex, France;4. GAP Biophotonics, Université de Genève, 22 chemin de Pinchat, CH-1211, Genève 4, Switzerland |
| |
| Abstract: | Niobate nanosheets prepared by exfoliation of layered hexaniobate K4Nb6O17 were sequentially decorated with two noble metal nanoparticles, gold and silver, through two-step photochemical reactions. First, cationic bis(ethylenediamine)gold(III) ions were electrostatically adsorbed on the anionic niobate nanosheets, and reduced to gold nanoparticles by UV excitation of the photocatalytically active niobate nanosheets. Then, the surface plasmon band of the photodeposited gold nanoparticles was excited with visible light, by which the silver cations introduced to the system together with citrate anions were reduced to silver nanoparticles. Spectroscopic and transmission electron microscopic observations indicated the formation of morphologically different silver nanoparticles, for example nanorods and core-shell particles. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
