The evolution of structure, chemical state and photocatalytic performance of α-Fe/FeTiO3/TiO2 with the nitridation at different temperatures

被引：12
|
作者：
Zhang, S. T. [1 ]
Ruan, Y. R. [1 ]
Liu, C. [1 ]
Wang, P. [1 ]
Ma, Y. Q. [1 ]
机构：
[1] Anhui Univ, Sch Phys & Mat Sci, Anhui Key Lab Informat Mat & Devices, Hefei 230039, Anhui, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 95卷
基金：
中国国家自然科学基金;
关键词：
Photocatalyst; FeTiO3/TiO2; Nitrogen doping; Chemical state; DOPED TITANIUM-DIOXIDE; VISIBLE-LIGHT; TIO2; DEGRADATION; WATER; NANOPARTICLES; ORIGINS; CARBON;
D O I：
10.1016/j.materresbull.2017.08.042
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
alpha-Fe/FeTiO3/TiO2 was synthesized through the reduction of Fe3O4@TiO2 at 800 degrees C, and subsequently nitrided in NH3 atmosphere at the nitridation temperature T-N = 400, 600, 800 and 1000 degrees C. In the crystal lattice of TiO2, with increasing T-N, the N element itself exhibits the chemical states of TiO2-xNx, TiN and interstitial N, and simultaneously it induces the complex variation of the chemical state of the Ti and O elements. The photo catalytic performance of the nitrided samples is not determined only by the chemical states of the N element but by the synergistic effects of chemical states of the N, Ti and O elements.
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页码：503 / 508
页数：6
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