Photocatalytic degradation of 2-propanol over metal-ion-loaded titanium(IV) oxide under visible light irradiation: Effect of physical properties of nano-crystalline titanium(IV) oxide

被引：28
|
作者：
Kitano, Sho [1 ]
Hashimoto, Keiji [1 ]
Kominami, Hiroshi [1 ]
机构：
[1] Kinki Univ, Fac Sci & Engn, Dept Appl Chem, Osaka 5778502, Japan
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2011年 / 101卷 / 3-4期
关键词：
Photocatalyst; Visible light; Rhodium ion; Copper ion; TiO2; Degradation of 2-propanol; TIO2; PHOTOCATALYSTS; DOPED TIO2; OXIDATION; AIR;
D O I：
10.1016/j.apcatb.2010.09.021
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：
Using the adsorption method, small amounts of rhodium ion (Rh3+) or copper ion (Cu2+) were loaded on nanocrystalline titanium(IV) oxide (TiO2) with various physical properties prepared by the HyCOM (hydrothermal crystallization in organic media) method and subsequent calcination at various temperatures. In photocatalytic degradation of 2-propanol under visible light irradiation, Rh3+-modified HyCOM-TiO2 samples exhibited higher levels of activity than did Cu2+-modified HyCOM-TiO2 samples and the nitrogen-doped TiO2 sample. The Rh3+-modified HyCOM-TiO2 samples showed a volcano-like tendency with calcination temperature, suggesting that the balance of surface area and crystallinity of TiO2 is important in an Rh3+/TiO2 photocatalyst. Rutile-type TiO2 modified with Cu-2 exhibited the highest level of activity among the Cu2+/HyCOM-TiO2 samples. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：206 / 211
页数：6
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