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Correlation investigation on the visible-light-driven photocatalytic activity and coordination structure of rutile Sn-Fe-TiO2 nanocrystallites for methylene blue degradation
Wang, YJ; Zhang, YJ; Yu, FH; Jin, CZ; Liu, X; Ma, JY; Wang, Y; Huang, YY; Wang, JH; Wang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China.
2015
Source PublicationCATALYSIS TODAY
ISSN0920-5861
Volume258Pages:112—119
Subtype期刊文献
AbstractRutile Sn-Fe-TiO2 photocatalysts with high visible-light-driven activity were synthesized by an improved soft chemical solution process for investigating the potential correlation between their photocatalytic performance and coordination structure. The prepared photocatalysts were systematically characterized by XRD, BET, Raman, TEM, UV-vis, XPS, XAFS and Mossbauer techniques. Their photocatalytic performances were evaluated by degrading the model pollutant of methylene blue aqueous solution under visible light irradiation (lambda >= 400 nm). The results indicated that tin and iron ions could substitute Ti4+ in the rutile TiO2 lattice, and specially, iron ions were located at tetrahedrally coordinated titanium sites. Their visible-light-driven photocatalytic activities were found to culminate at a very low level of iron doping (Fe/Ti = similar to 0.1 at.%, Sn/Ti = 2.0 at.%), this was 5-fold of P25 and 2-fold of undoped rutile TiO2. It was confirmed that besides the high surface area, fine crystallinity, enhanced visible light absorption and optimized oxygen vacancy concentration, the mole ratio of tetrahedrally coordinated iron and titanium was also essential to modify their visible-light-driven photocatalytic properties. (C) 2015 Elsevier B.V. All rights reserved.
KeywordQuantum-sized Tio2 Metal-ion Dopants Doped Tio2 Rhodamine-b Band-gap Anatase Dye Nanoparticles Irradiation Performance
Indexed BySCI
Language英语
WOS IDWOS:000363424200017
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24890
Collection中科院上海应用物理研究所2011-2019年
Corresponding AuthorWang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China.
Recommended Citation
GB/T 7714
Wang, YJ,Zhang, YJ,Yu, FH,et al. Correlation investigation on the visible-light-driven photocatalytic activity and coordination structure of rutile Sn-Fe-TiO2 nanocrystallites for methylene blue degradation[J]. CATALYSIS TODAY,2015,258:112—119.
APA Wang, YJ.,Zhang, YJ.,Yu, FH.,Jin, CZ.,Liu, X.,...&Wang, JH .(2015).Correlation investigation on the visible-light-driven photocatalytic activity and coordination structure of rutile Sn-Fe-TiO2 nanocrystallites for methylene blue degradation.CATALYSIS TODAY,258,112—119.
MLA Wang, YJ,et al."Correlation investigation on the visible-light-driven photocatalytic activity and coordination structure of rutile Sn-Fe-TiO2 nanocrystallites for methylene blue degradation".CATALYSIS TODAY 258(2015):112—119.
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