Hydrothermal Synthesis and Performance of Lanthanum-Doped NaTaO3 Photocatalyst

被引：0

作者：

Zang, Jin-ling ^{[1
]}

Li, Xia ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China

来源：

PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3 | 2010年

关键词：

Photocatalyst; NaTaO(3); Hydrothermal method; Doping; CRYSTAL-STRUCTURE; WATER; O-2; H-2; DECOMPOSITION; NI; TA;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Well crystallized La doped NaTaO(3) nanosized particles were prepared by a single-step hydrothermal method. The product was characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-vis diffuse reflectance spectroscopy. Photocatalysis experiment was carried out under ultraviolet lamp using 5mg/l safranine solution as degradation solution. The results indicate that La doped NaTaO(3) has orthorhombic phase. The grains are cubic with a size distribution from 200nm to 300nm. The doping of La ion in NaTaO(3) led to a slight lattice distortion and a narrow band gap. So La doping NaTaO(3) has higher photocatalysis efficiency than pure NaTaO(3).

引用

页码：397 / 401

页数：5

共 22 条

[11] RYU A, 2006, J PHYS CHEM B, V110, P2219
[12] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES
SHANNON, RD
[J]. ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1): : 751 - 767
[13] [孙超 SUN Chao], 2006, [化学研究与应用, Chemical Research and Application], V18, P903
[14] Synthesis of hexagonal BaTa2O6 nanorods and influence of defects on the photocatalytic activity
Xu, Tongguang
Zhao, Xu
Zhu, Yongfa
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (51): : 25825 - 25832
[15] Photodynamics of NaTaO3 catalysts for efficient water splitting
Yamakata, A
Ishibashi, T
Kato, H
Kudo, A
Onishi, H
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (51): : 14383 - 14387
[16] Crystal structure, disorder, and diffusion path of oxygen ion conductors Y1-xTaxO1.5+x (x=0.215 and 0.30)
Yashima, Masatomo
Tsuji, Takayuki
[J]. CHEMISTRY OF MATERIALS, 2007, 19 (14) : 3539 - 3544
[17] Crystal structure and electron density of tantalum oxynitride, a visible light responsive photocatalyst
Yashima, Masatomo
Lee, Yungi
Domen, Kazunari
[J]. CHEMISTRY OF MATERIALS, 2007, 19 (03) : 588 - 593
[18] Sol-gel synthesis and characterization of the photocatalyst BaCo1/3Nb2/3O3
Yin, J
Zou, ZG
Ye, JH
[J]. JOURNAL OF MATERIALS SCIENCE, 2006, 41 (04) : 1131 - 1135
[19] Possible role of lattice dynamics in the photocatalytic activity of BaM1/3N2/3O3 (M = Ni, Zn; N=Nb, Ta)
Yin, J
Zou, ZG
Ye, JH
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (26): : 8888 - 8893
[20] Surface characterization of nanoparticles of NiOx/In0.9Ni0.1TaO4:: Effects on photocatalytic activity
Zou, ZG
Ye, JH
Arakawa, H
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (51): : 13098 - 13101

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