Fe-decorated TiO2 powder photocatalysts with enhanced visible-light-driven degradation activities

被引：11
|
作者：
Lee, Heon [1 ]
Park, Young-Kwon [2 ]
Kim, Sun-Jae [3 ]
Kim, Byung-Hoon [4 ]
Jung, Sang-Chul [1 ]
机构：
[1] Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 540950, Jeonnam, South Korea
[2] Univ Seoul, Sch Environm Engn, 163 Seoulsiripdae Ro, Seoul 130743, South Korea
[3] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, 209 Neungdong Ro, Seoul 143747, South Korea
[4] Chosun Univ, Dept Dent Mat, 309 Pilmun Daero, Kwangju 501759, South Korea
来源：
SURFACE & COATINGS TECHNOLOGY | 2016年 / 307卷
基金：
新加坡国家研究基金会;
关键词：
TiO2; Iron oxide particle; Band gap energy; Liquid phase plasma; Photocatalytic activity; TITANIUM-DIOXIDE; BAND-GAP; NANOPARTICLES; PLASMA; REDUCTION; ANATASE; FILMS; NANOCOMPOSITES; METHANOL; PHENOL;
D O I：
10.1016/j.surfcoat.2016.08.033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The liquid phase plasma (LPP) synthetic process was exploited to synthesize an iron oxide doped TiO2 photocatalyst (IOTP) that is sensitive to visible light. This IOTP was tested for photoactivation using ultraviolet and visible light exposure. The physical and chemical properties of the prepared IOTP powders were studied by various analysis instruments (UV-Vis spectroscopy, FESEM, HR-FETEM, HR-XPS). The band gap energy of the IOTP was found to be 2.93 eV, which was smaller than that of the bare TiO2, 3.18 eV. The IOTP synthesized in this work showed photoactivity under visible blue light. However, its photoactivity was lower than that of the bare TiO2 powder under UV light because the iron oxide precipitate acted as crystal defects, deteriorating the catalytic activity. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：1018 / 1023
页数：6
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