Facile preparation of porous NiTiO3 nanorods with enhanced visible-light-driven photocatalytic performance

被引：186

作者：

Qu, Yang ^{[1
,2
]}

Zhou, Wei ^{[1
]}

Ren, Zhiyu ^{[1
]}

Du, Shichao ^{[1
]}

Meng, Xiangying ^{[1
]}

Tian, Guohui ^{[1
]}

Pan, Kai ^{[1
]}

Wang, Guofeng ^{[1
]}

Fu, Honggang ^{[1
,2
]}

机构：

[1] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ Peoples Republ China, Harbin 150080, Peoples R China

[2] Jilin Univ, Inst Theoret Chem, State Key Lab Theoret & Computat Chem, Changchun 130023, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 32期

基金：

中国国家自然科学基金;

关键词：

STRUCTURAL-CHARACTERIZATION; ANATASE TIO2; DEGRADATION; FABRICATION; GENERATION; TITANATES; NANOWIRES; PRECURSOR; STRATEGY; HYDROGEN;

D O I：

10.1039/c2jm32044d

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：

Porous NiTiO3 nanorods have been successfully synthesized by an ethylene glycol-mediated route at room temperature followed by calcination at 600 degrees C in air. Characterisation results reveal that the obtained NiTiO3 nanorods are 3 mu m in length and 400 nm in diameter. They possess rough surfaces and accumulation holes, which are beneficial for adsorption and thereby superior for photocatalysis. The porous NiTiO3 nanorods possess a noticeable optical absorbance in the visible range, indicating they have visible light photoresponse. The photocatalytic activity is evaluated in the degradation of nitrobenzene, which is a highly toxic organic pollutant in wastewaters. The porous NiTiO3 nanorods exhibit better photocatalytic activity under visible light irradiation than that of NiTiO3 nanoparticles and commercial TiO2 (Degussa P25). The enhancement is attributed to the porous texture, which offers more active sites and facilitates mass transport, and the special 1D structure that favors the separation of photogenerated electron-hole pairs, which is confirmed by surface photovoltage spectra.

引用

页码：16471 / 16476

页数：6

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