Synthesis and Characterization of ESM-morphic Fibrous CeO2

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (11): 2116.

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Synthesis and Characterization of ESM-morphic Fibrous CeO2

QIAN Jun-Chao1, CHEN Feng2, QIAN Qian1, ZHAO Xiao-Bing1, CHEN Zhi-Gang2*

1. College of Material Science and Engineering, Changzhou University, Changzhou 213164, China;
2. College of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China

Received:2010-06-30 Online:2010-11-10 Published:2010-11-10
Contact: CHEN Zhi-Gang. E-mail: czg@ujs.edu.cn
Supported by:
国家自然科学基金(批准号: 20771047)、江苏省自然科学基金(批准号: BK2008541)和江苏省研究生创新计划项目资助.

Abstract

Abstract: The egg shell membrane(ESM), a biological waste product, was used as a natural bio-template. Through a two-step infiltration process based on the surface chemistry and biochemistry interactions involved in organic-inorganic interface, cerium ion combined with biomembrane evenly by controlling cerous nitrate solution concentration, impregnant pH value. Hierarchical fibrous nano-porous ceria was prepared after being calcined at 550 ℃. Unique bio-morphic microstructures with interwoven networks were synthesized and characterized by Fourier transform infrared spectroscopy(FTIR), thermogravimetric analysis(TGA), field emission scanning electron microscope(FESEM) and so on. Ceria was characterized by repetitious networks consisting of the porous hollow tubes with external diameter of about 1 μm and inner diameter of about 250 nm and the tube wall was studied with piled pores which had 1—5 nm aperture. While the concentration of acid fuchsine is 20 mg/L, catalyst amount 0.2 g/L, the reaction had a higher decoloring rate in shorter time, the decoloring rate can reach over 90% after 120 min.

Key words: Bio-template, Bio-morphic mineralization, Egg shell membrane, Biomorphic porous network

TrendMD:

QIAN Jun-Chao, CHEN Feng, QIAN Qian, ZHAO Xiao-Bing, CHEN Zhi-Gang* . Synthesis and Characterization of ESM-morphic Fibrous CeO2[J]. Chem. J. Chinese Universities, 2010, 31(11): 2116.

References

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Synthesis and Characterization of ESM-morphic Fibrous CeO2

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