I-doping of anodized TiO2 nanotubes using an electrochemical method

被引：15
作者：
Su YaLing [1 ,2 ]
Xiao YuTang [1 ]
Du YingXun [1 ]
Fu Shiang [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China
[2] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2010年 / 55卷 / 20期
基金：
中国国家自然科学基金;
关键词：
TiO2; nanotubes; electrochemical method; I-doping; photocatalytic properties; S-DOPED TIO2; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; ION-IMPLANTATION; ELECTROLYTES; POWDERS; IODINE; OXIDE; DEGRADATION;
D O I：
10.1007/s11434-010-3173-9
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In order to obtain TiO2 with high photocatalytic activity, a cathode reduction was used to dope I7+ and I5+ into TiO2 nanotubes of anodized Ti in C2H2O4 center dot 2H(2)O + NH4F electrolyte. SEM images show that the anodization method integrated the preparation with the doping process, which for nonmetals-doping is advantageous to maintain the morphological integrity of TiO2 nanotubes. I7+-I5+-doping enhances the UV response of TiO2 and result in a red-shift. Under UV/visible irradiation, a I7+-I5+-doped sample (400A degrees C) showed the highest I (ph) and photocatalytic efficiency. A part of I- in the I7+-I5+-doped sample is involved in the UV response, the red-shift and the higher I (ph).
引用
收藏
页码：2136 / 2141
页数：6
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