|本期目录/Table of Contents|

[1]仓理.以蛋清为成孔剂制备Fe3O4及其对亚甲基蓝的吸附性能[J].南京工业大学学报(自然科学版),2014,36(04):118-122.[doi:10.3969/j.issn.1671-7627.2014.04.022]
 CANG Li.Synthesis and adsorption for methylene blue of porous Fe3O4 with egg albumen[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(04):118-122.[doi:10.3969/j.issn.1671-7627.2014.04.022]
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以蛋清为成孔剂制备Fe3O4及其对亚甲基蓝的吸附性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年04期
页码:
118-122
栏目:
出版日期:
2014-07-01

文章信息/Info

Title:
Synthesis and adsorption for methylene blue of porous Fe3O4 with egg albumen
文章编号:
1671-7627(2014)04-0118-05
作者:
仓理
南京化工职业技术学院,江苏 南京 210048
Author(s):
CANG Li
Nanjing College of Chemical Technology,Nanjing 210048,China
关键词:
Fe3O4 蛋清 溶胶-凝胶法 亚甲基蓝 大孔 吸附
Keywords:
Fe3O4 egg albumen sol-gel methylene blue macropore adsorption
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2014.04.022
文献标志码:
A
摘要:
以蛋清为成孔剂通过溶胶-凝胶法制备具有大孔结构的磁性Fe3O4吸附材料。研究蛋清的加入量对Fe3O4的结构、孔径、形貌和吸附性质的影响。结果表明:蛋清的加入能够辅助形成孔结构,不同的加入量对孔结构影响较大。在0.5 mmol/L Fe2(SO4)3与0.5 mmol/L FeSO4混合溶液中加入40 mL蛋清的条件下制备的Fe3O4具有孔结构。由于均匀的孔径结构既能提供更多的吸附位点,也能为吸附质提供有效的通道,所以40 mL蛋清条件下制备的样品具有最高的饱和吸附容量(32.51 mg/g)。样品在pH=10.5下吸附性能最佳。通过动力学和热力学数据计算拟合发现,样品的吸附过程符合准二级动力学模型以及Freundiich吸附等温式。
Abstract:
Egg albumen was used as porogen to synthesize porous Fe3O4 by sol-gel method.The effects of egg albumen volume on structure,morphology and adsorption properties for methylene blue were studied.Results showed that the sample obtained with 40 mL egg albumen in solution of Fe2(SO4)3 0.5 mmol/L and FeSO4 0.5 mmol/L showed the larger porous structure.The sample had the largest adsorption capacity of 32.51 mg/g due to the macroporous structure that provided more adsorption sites and more effective passageway for adsorbate.The best pH for the adsorption was 10.5.The pseudo-second-order kinetics equation and Freundiich adsorption isotherm indicated the best correlation to the kinetics and equilibrium data for all samples by fitting the data of kinetics and thermodynamics.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-07-26
作者简介:仓理(1963—),男,江苏南京人,研究员级高工,博士,主要研究方向为精细化学品,E-mail:li.cang@163.com..
更新日期/Last Update: 2014-07-31