A novel yeast bio-template route to synthesize Cr2O3 hollow microspheres

被引：69

作者：

Bai, Bo ^{[1
]}

Wang, Pengpeng ^{[1
]}

Wu, Le ^{[2
]}

Yang, Li ^{[1
]}

Chen, Zhihong ^{[1
]}

机构：

[1] Changan Univ, Inst Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China

[2] E China Univ Sci & Technol, Inst Resource & Environm Engn, Shanghai 200237, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 114卷 / 01期

关键词：

Oxides; Microstructure; Chemical synthesis; CALCIUM-CARBONATE; SPHERES; NANOPARTICLES; PARTICLES; FILMS;

D O I：

10.1016/j.matchemphys.2008.10.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chromium oxide (Cr2O3) hollow microspheres were successfully prepared by using spherical yeast as a natural bio-template and chromium chloride hexahydrate (CrCl3 center dot 6H(2)O) as chromium source, which involved the deposition of inorganic coatings on the surface of yeast cells and subsequent thermal dehydration. Various approaches including X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transformed infrared (Fr-IR) spectroscopy were used to characterize the intermediate and the final products. The results showed that the thermally treated samples were Cr2O3 hollow microspheres with a diameter varying between 2.5 mu m and 2.8 mu m. The possible mechanism for the formation of Cr2O3 hollow microspheres is proposed. This study provided a promising route for the preparation of a variety of hollow microspheres. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

引用

页码：26 / 29

页数：4

共 19 条

[1] Addition of nanosized Cr2O3 to magnesium for improvement of the hydrogen sorption properties [J].

Bobet, JL ;

Desmoulins-Krawiec, S ;

Grigorova, E ;

Cansell, F ;

Chevalier, B .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 351 (1-2) :217-221

[2] Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating [J].

Caruso, F ;

Caruso, RA ;

Möhwald, H .

SCIENCE, 1998, 282 (5391) :1111-1114

[3] Nanostructured gold hollow microspheres prepared on dissolvable ceramic hollow sphere templates [J].

Chah, S ;

Fendler, JH ;

Yi, J .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 250 (01) :142-148

[4] Patterned hexagonal arrays of living cells in sol-gel silica films [J].

Chia, SY ;

Urano, J ;

Tamanoi, F ;

Dunn, B ;

Zink, JI .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (27) :6488-6489

[5] The overgrowth of calcium carbonate on poly(vinyl chloride-co-vinyl acetate-co-maleic acid) [J].

Dalas, E ;

Klepetsanis, P ;

Koutsoukos, PG .

LANGMUIR, 1999, 15 (23) :8322-8327

[6] Colloidosomes: Selectively permeable capsules composed of colloidal particles [J].

Dinsmore, AD ;

Hsu, MF ;

Nikolaides, MG ;

Marquez, M ;

Bausch, AR ;

Weitz, DA .

SCIENCE, 2002, 298 (5595) :1006-1009

[7] Layer-by-layer self-assembly of multilayer zirconia nanoparticles on silica spheres for HPLC packings [J].

Dun, HJ ;

Zhang, WQ ;

Wei, Y ;

Song, XQ ;

Li, YM ;

Chen, LR .

ANALYTICAL CHEMISTRY, 2004, 76 (17) :5016-5023

[8] Thickness-dependent properties of chemically deposited CdSe thin films [J].

Kale, SS ;

Lokhande, CD .

MATERIALS CHEMISTRY AND PHYSICS, 2000, 62 (02) :103-108

[9] Synthesis and characterization of monodispersed core-shell spherical colloids with movable cores [J].

Kamata, K ;

Lu, Y ;

Xia, YN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (09) :2384-2385

[10] Nanocrystalline Cr2O3 and amorphous CrO3 produced by solution combustion synthesis [J].

Lima, MD ;

Bonadimann, R ;

de Andrade, MJ ;

Toniolo, JC ;

Bergmann, CP .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2006, 26 (07) :1213-1220

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