Enhanced Photocatalytic Activity of TiO2 Nanofibers and Their Flexible Composite Films： Decomposition of Organic Dyes and Efficient H2 Generation from Ethanol-Water Mixtures

作     者：Ming-Chung Wu Andras Sapi Anna Avila Maria Szabo Jussi Hiltunen Mika Huuhtanen Geza Toth Akos Kukovecz Zoltan Konya Riitta Keiski Wei-Fang Su Heli Jantunen Krisztian Kordas 

作者机构：Department of Electrical and Information Engineering University of Oulu P.O. Box 4500 FI-90014 University of Oulu Finland Department of Applied and Environmental Chemistry University of Szeged 6720 Szeged Rerrich Bela ter 1 Hungary Department of Process and Environmental Engineering P.O. Box 4300 F1-90014 University of Oulu Finland Department of Materials Science and Engineering National Taiwan University Taipei 106-17 Taiwan China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2011年第4卷第4期

页      面：360-369页

核心收录：

学科分类：081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Science Council, NSC, (98-3114-E-002-001, 99-2120-M-002-011) Academy of Finland, (120853, 124357, 128626, 128908) Tekes, (52423, 52433) Hungarian Scientific Research Fund, OTKA, (73676, NNF-78920) 

主　　题：TiO2 photocatalyst metal-decorated TiO2 nanowires H2 generation oxidation of organic dyes 

摘      要：TiO2 nanofibers decorated with Pt and Pd nanoparticles have been synthesized and studied in various photocatalytic processes. Excellent photocatalytic behavior in the decomposition of organic dyes in water, degradation of organic stains on the surface of flexible freestanding cellulose/catalyst composite films and in generation of hydrogen from ethanol using both suspended and immobilized catalysts are demonstrated. The performance of the nanofiber-based TiO2 materials is competitive with and in some cases outperforms--their conventional nanoparticle-based counterparts. In all cases, Pd-decorated TiO2 nanoparticles and nanofibers proved to be more efficient than their Pt-based counterparts, which could be explained on the basis of the formation of nano-sized Schottky interfaces at the contacts between TiO2 and metal nanoparticles. The feasibility of forming cellulose/catalyst composites provides a novel way of utilizing photocatalyst materials in large-area coatings and freestanding films.