Facile synthesis and catalytic activity of MoS2/TiO2 by a photodeposition-based technique and its oxidized derivative MoO3/TiO2 with a unique photochromism

被引:94
作者
Kanda, Shigeki [1 ]
Akita, Tomoki [2 ]
Fujishima, Musashi [1 ]
Tada, Hiroaki [1 ]
机构
[1] Kinki Univ, Dept Appl Chem, Sch Sci & Engn, Osaka 5778502, Japan
[2] Natl Inst Adv Ind Sci & Technol, Osaka 5638577, Japan
关键词
Single precursor photodeposition; Photocatalysis; Photochromism; Metal oxide; Metal chalcogenide; SIZE; MOS2; SEMICONDUCTOR; NANOPARTICLE; CDS;
D O I
10.1016/j.jcis.2010.11.007
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
UV-light irradiation to TiO2 in an aqueous ethanol solution of (NH4)(2)MoS4 under deaerated conditions has yielded molybdenum(IV) sulfide nanoparticles on a TiO2 surface (MoS2/TiO2) to be transformed into molybdenum(VI) oxide species highly dispersed at a molecular level by a subsequent heating at 773 K in air (m-MoO3/TiO2). In HCOOH aqueous solutions, the MoS2/TiO2 system exhibits a high level of photocatalytic activity for H-2 generation, while the m-MoO3/TiO2 system shows unique photochromism. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:607 / 610
页数:4
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