生物鸡蛋内膜结构氧化铈材料的合成与表征

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (11): 2116.

生物鸡蛋内膜结构氧化铈材料的合成与表征

钱君超1, 陈丰2, 钱前1, 赵晓兵1, 陈志刚2

1. 常州大学材料科学与工程学院, 常州 213164;
2. 江苏大学材料科学与工程学院, 镇江 212013

收稿日期:2010-06-30 出版日期:2010-11-10 发布日期:2010-11-10
通讯作者: 陈志刚, 男, 教授, 博士生导师, 主要从事微纳米多孔材料和碳质材料合成与应用研究. E-mail: czg@ujs.edu.cn
基金资助:
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.

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.

摘要/Abstract

摘要： 采用生物废弃材料鸡蛋内膜为模板, 选取适当浓度的硝酸铈溶液, 调节pH值, 通过两步浸渍, 经有机-无机界面上的表面化学及生物化学过程的交互作用, 使生物膜与稀土元素铈均匀结合, 并于550 ℃煅烧, 合成了管状分级多孔氧化铈纳米材料. 通过傅里叶变换红外光谱(FTIR)、热重分析(TGA)和场发射扫描电镜(FESEM)等测试手段对材料进行了表征. 结果表明, 该材料具有独特的纤维网络状生物形貌, 是由内径500 nm、管壁厚约为250 nm的微米级氧化铈中空管所组成, 其壁上含有大量1~5 nm孔径的颗粒堆积孔. 考察了该材料对酸性品红染料脱色反应的催化活性，结果表明，当酸性品红浓度为20 mg/L和催化剂用量为0.2 g/L时, 反应120 min后染料脱色率可达到90%以上.

关键词: 生物模板, 生物矿化, 鸡蛋膜, 仿生多孔网络

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:

钱君超, 陈丰, 钱前, 赵晓兵, 陈志刚. 生物鸡蛋内膜结构氧化铈材料的合成与表征. 高等学校化学学报, 2010, 31(11): 2116.

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

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