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用铁矿尾矿作为硅源和铁源合成 Fe-MCM-41

Synthesis of Fe-MCM-41 Using Iron Ore Tailings as the Silicon and Iron Source.

机构信息

School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110159, China.

出版信息

J Anal Methods Chem. 2012;2012:928720. doi: 10.1155/2012/928720. Epub 2012 Apr 3.

DOI:10.1155/2012/928720
PMID:22567574
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3335322/
Abstract

Highly ordered Fe-MCM-41 molecular sieve was successfully synthesized by using n-hexadecyl-trimethyl ammonium bromide (CTAB) as the template and the iron ore tailings (IOTs) as the silicon and iron source. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), diffuse reflectance UV-visible spectroscopy, (29)Si magic-angle spinning (MAS) nuclear magnetic resonance (NMR), and nitrogen adsorption/desorption were used to characterize the samples. The results showed that the mesoporous materials had highly ordered 2-dimensional hexagonal structure. The synthesized sample had high surface area, and part of iron atoms is retained in the framework with formation of tetrahedron after removal of the template by calcinations. The results obtained in the present work demonstrate the feasibility of employing iron ore tailings as a potential source of silicon and iron to produce Fe-MCM-41 mesoporous materials.

摘要

采用十六烷基三甲基溴化铵（CTAB）作为模板，利用铁矿石尾矿（IOTs）作为硅源和铁源，成功合成了高度有序的 Fe-MCM-41 分子筛。采用 X 射线衍射（XRD）、高分辨率透射电子显微镜（HRTEM）、漫反射紫外可见光谱、（29）Si 魔角旋转（MAS）核磁共振（NMR）和氮气吸附/脱附对样品进行了表征。结果表明，介孔材料具有高度有序的二维六方结构。合成的样品具有高比表面积，并且部分铁原子在煅烧除去模板后保留在骨架中，形成四面体。本工作的结果表明，利用铁矿石尾矿作为硅源和铁源生产 Fe-MCM-41 介孔材料具有可行性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/4fcee45b8bfe/JAMC2012-928720.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/675cf3997e4c/JAMC2012-928720.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/8c1dc589c380/JAMC2012-928720.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/4cd18b54738e/JAMC2012-928720.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/140df579da7d/JAMC2012-928720.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/df00b19be42e/JAMC2012-928720.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/4fcee45b8bfe/JAMC2012-928720.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/675cf3997e4c/JAMC2012-928720.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/8c1dc589c380/JAMC2012-928720.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/4cd18b54738e/JAMC2012-928720.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/140df579da7d/JAMC2012-928720.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/df00b19be42e/JAMC2012-928720.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae03/3335322/4fcee45b8bfe/JAMC2012-928720.006.jpg

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本文引用的文献

1
Synthesis process of forsterite refractory by iron ore tailings.利用铁矿石尾矿合成镁橄榄石耐火材料的工艺
J Environ Sci (China). 2009;21 Suppl 1:S92-5. doi: 10.1016/S1001-0742(09)60046-2.