高比表面磁性有序介孔炭的合成及对亚甲基蓝的吸附性能

doi:10.3969/j.issn.0438-1157.2012.12.049

化工学报 ›› 2012, Vol. 63 ›› Issue (12): 4082-4088.DOI: 10.3969/j.issn.0438-1157.2012.12.049

• 材料化学工程与纳米技术 • 上一篇下一篇

高比表面磁性有序介孔炭的合成及对亚甲基蓝的吸附性能

田勇, 钟国英, 王秀芳, 林汉森

广东药学院药科学院, 广东广州 510006

收稿日期:2012-04-27 修回日期:2012-07-04 出版日期:2012-12-05 发布日期:2012-12-05
通讯作者: 王秀芳
作者简介:田勇(1977-),男,博士,副教授。
基金资助:
国家自然科学基金项目(50802017);广东省高等学校高层次人才项目(2011年度);广东省自然科学基金项目(S2012010009416);广东高校优秀青年创新人才培养计划项目(2012LYM_085);广东省科技计划项目(2012B020316007)。

Preparation of high specific surface area magnetic ordered mesoporous carbons and adsorption property of methylene blue

TIAN Yong, ZHONG Guoying, WANG Xiufang, LIN Hansen

School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong, China

Received:2012-04-27 Revised:2012-07-04 Online:2012-12-05 Published:2012-12-05
Supported by:
supported by the National Natural Science Foundation of China(50802017),the Higher Education Talents Introducing Fund of Guangdong Province(2011),the Natural Science Foundation of Guangdong Province(S2012010009416),the Foundation for Distinguished Young Talents in Higher Education of Guangdong(2012LYM_0085)and the Planned Project of Science and Technology of Guangdong Province(2012B020316007).

摘要/Abstract

摘要： 具有高比表面积、大孔容的铁磁性有序介孔炭(Fe/OMCs)对含染料废水的处理提供了一种简单有效的方法。采用苯酚树脂作炭源,三嵌段共聚物F127为模板剂,正硅酸乙酯为硅前驱体,硝酸铁为磁源,通过软模路线合成了Fe/OMCs。利用X射线衍射仪(XRD),氮气吸附仪,透射电镜(TEM)和综合物性测试仪研究了硝酸铁加入量对Fe/OMCs的相态、孔结构参数和磁性的影响;并以亚甲基蓝(MB)为染料探针分子,研究了Fe/OMCs对MB的吸附行为。结果表明材料有序性、比表面和孔容随着硝酸铁加入量的增加而降低,而饱和磁化强度明显增强。Fe/OMCs对MB有快速吸附能力,其行为符合Sips吸附方程。

关键词: 有序介孔炭, 合成, 吸附, 亚甲基蓝

Abstract: Magnetic Fe-containing ordered mesoporous carbons(Fe/OMCs)with high surface area and large pore volume provide an easy and effective way for the treatment of dye in waste water.Fe/OMCs were synthesized by the soft-template route,wherein phenolic resin was used as a carbon precursor,triblock copolymer F127 as a template agent,tetraethylorsilicate(TEOS)as a silica precursor and hydrated iron nitrate as an iron source.The effects of Fe(NO₃)₃?9H₂O loading on the morphology,structural parameters,and magnetic properties of the Fe/OMCs were evaluated by X-ray diffraction(XRD),N₂ sorption analysis,transmission electron microscopy(TEM)and physical property measurements.By using methylene blue(MB)as model dye,the adsorption of MB on the obtained Fe/OMCs was investigated.The experimental results showed that the ordering,specific surface area and total pore volume decreased with the increase of Fe(NO₃)₃?9H₂O loading.The Fe/OMCs had fast adsorption ability for MB.The adsorption of MB on the obtained Fe/OMCs followed the Sips adsorption equation and the corresponding parameters were obtained.

Key words: ordered mesoporous carbon, synthesis, adsorption, methylene blue

中图分类号:

O647
TQ424.1

田勇, 钟国英, 王秀芳, 林汉森. 高比表面磁性有序介孔炭的合成及对亚甲基蓝的吸附性能[J]. 化工学报, 2012, 63(12): 4082-4088.

TIAN Yong, ZHONG Guoying, WANG Xiufang, LIN Hansen. Preparation of high specific surface area magnetic ordered mesoporous carbons and adsorption property of methylene blue[J]. CIESC Journal, 2012, 63(12): 4082-4088.

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高比表面磁性有序介孔炭的合成及对亚甲基蓝的吸附性能

Preparation of high specific surface area magnetic ordered mesoporous carbons and adsorption property of methylene blue

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