A citrate complex process to prepare nanocrystalline PbBi2Nb2O9 at a low temperature

被引：14

作者：

Bi, Jinhong ^{[1
]}

Wu, Ling ^{[1
,2
]}

Li, Zhaohui ^{[1
]}

Wang, Xuxu ^{[1
]}

Fu, Xianzhi ^{[1
]}

机构：

[1] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Res Inst Photocatalysis, Fuzhou 350002, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 01期

基金：

中国国家自然科学基金;

关键词：

nanocrystal; PbBi2Nb2O9; citrate complex method;

D O I：

10.1016/j.matlet.2007.04.115

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PbBi2Nb2O9 nanocrystals with a perovskite-type structure were successfully synthesized at a relative low temperature via a citrate complex method. Metal ions were dispersed by citric acid in ethanol and ethylene glycol solvent, and then reacted with NH4H2[NbO(C2O4)(3)center dot 3H(2)O] to form the gel. XRD results showed that pure PbBi2Nb2O9 nanocrystals could be obtained after calcined treatment of xerogel at 800 degrees C. The average particles size was 57 nm. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that the sintering process led to the agglomeration of the nanoparticles. The photocatalytic test showed that the sample prepared by the citrate complex method exhibited a higher photocatalytic activity than that of the sample prepared by the solid-state reaction. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：155 / 158

页数：4

共 12 条

[1] CO2 and O2 sensing behavior of nanostructured barium-doped SMCoO3 [J].

Delgado, E ;

Michel, CR .

MATERIALS LETTERS, 2006, 60 (13-14) :1613-1616

[2] Photocatalytic hydrogen production from water over m-doped La2Ti2O7 (M = Cr, Fe) under visible light irradiation (λ > 420 nm) [J].

Hwang, DW ;

Kirn, HG ;

Lee, JS ;

Kim, J ;

Li, W ;

Oh, SH .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (06) :2093-2102

[3]

Ismunandar, 1998, SOLID STATE IONICS, V112, P281, DOI 10.1016/S0167-2738(98)00222-7

[4]

JAMES AS, 1995, CHEM REV, V95, P477

[5] An undoped, single-phase oxide photocatalyst working under visible light [J].

Kim, HG ;

Hwang, DW ;

Lee, JS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (29) :8912-8913

[6]

Pechini M.P, 1967, US Pat. Off., Patent No. [3330697, 3,330,697]

[7] Microwave-assisted synthesis of BaMoO4 nanocrystallites by a citrate complex method and their anisotropic aggregation [J].

Ryu, JH ;

Yoon, JW ;

Shim, KB .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 413 (1-2) :144-149

[8]

SIEGEL RW, 1991, ANNU REV MATER SCI, V21, P559

[9]

SUBBARAO EC, 1992, J PHYS CHEM SOLIDS, V23, P655

[10] Nanocrystalline semiconductors: Synthesis, properties, and perspectives [J].

Trindade, T ;

O'Brien, P ;

Pickett, NL .

CHEMISTRY OF MATERIALS, 2001, 13 (11) :3843-3858

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