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Journal of Materials Science

, Volume 42, Issue 19, pp 8292–8297 | Cite as

Preparation and characterization of nanosized bismuth doped tin dioxide powders with a novel post treatment process

  • Qiuxing He
  • Weiping Tu
  • Jianqing Hu
Article

Abstract

Bismuth-doped tin dioxide (BTO) nanopowders were prepared by wet chemical co-precipitation method using tin tetrachloride (SnCl4) and bismuth nitrate (Bi(NO3)3) as raw materials. Effects of calcination temperature and post treatment methods on particle size and crystalline phase transition of bismuth tin precursor (BTP) were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric-differential scanning calorimetric instrument (TG-DSC) and X-ray photoelectron spectroscopy (XPS). The optimal calcination temperature of BTP was found to be about 873 K. A novel post treatment process with polyacrylamide (PAM) in the preparation of nanometerials was presented for the first time. Experimental results showed that nonionic PAM is a highly effective additive, which not only speeds up the filtration of precursor, but also effectively reduces the formation of hard agglomerates. The average size of BTO nanopowders prepared using nonionic PAM as a filtration aid and disperser is smaller than 10 nm. We believe this post treatment method will come into wide use for preparation of many nanosized materials.

Keywords

SnO2 Calcination Temperature Bi2O3 Post Treatment Process Optimal Calcination Temperature 

Notes

Acknowledgment

The work was financially supported by the open fund of Guangdong provincial key laboratory for green chemicals (Granted No. GC200603).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.School of Chemical and Energy EngineeringSouth China University of TechnologyGuangzhouChina
  2. 2.College of PharmacyGuangdong Pharmaceutical UniversityGuangzhouChina

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