Facile Preparation of Ammonium Molybdophosphate/Al-MCM-41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption
Facile Preparation of Ammonium Molybdophosphate/Al-MCM-41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption
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天然粘土简易制备钼磷酸铵/Al-MCM-41复合材料及其在铯离子吸附中的应用
DOI：
10.1002/ejic.201500114
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发表时间：
2015-04
影响因子：
2.3
通讯作者：
Fangqin Cheng
中科院分区：
文献类型：
--
作者：
Chunyan Sun;Feng Zhang;Xiao Wang;Fangqin Cheng
以青海盐湖低品位钾矿中的天然粘土为硅铝源，采用一锅法合成了掺杂钼磷酸铵的有序六方介孔铝硅酸盐基质(Al-MCM-41)。我们介绍了一种改进的“液相输送”步骤，该步骤允许以不纯的天然粘土为原料，无需沉淀前处理直接生产纯产品。用X射线荧光光谱(XRF)、傅里叶变换红外光谱(FTIR)、X射线衍射仪、透射电子显微镜、27Al和31P魔角旋转(MAS)核磁共振谱以及氮气吸附/脱附等手段对产物进行了表征，表明AMP被固定在Al-MCM-41的介孔结构中。并考察了最终产物对溶液中铯离子的吸附能力。结果表明，盐湖粘土是一种很有前途的低成本前驱体，可以一锅法合成介孔铝硅酸盐载体，最终得到的复合材料可以有效地吸附含其他碱金属离子的溶液中的铯离子。
Ordered hexagonal mesoporous aluminosilicate matrix (Al-MCM-41) with incorporated ammonium molybdophosphate (AMP) was successfully synthesized by a one-pot synthesis method with natural clay from low-grade potash ores of Qinghai salt lake as the silica and aluminum source. We introduced a modified “liquid-phase transport” step, which allowed the use of impure natural clay as a starting material to directly produce pure product without sedimentation pretreatment. The resultant product was characterized by X-ray fluorescence (XRF) spectroscopy, FTIR spectroscopy, XRD, TEM, 27Al and 31P magic-angle spinning (MAS) NMR spectroscopy, and N2 adsorption/desorption, which indicated that the AMP was immobilized in the mesoporous structure of Al-MCM-41. The adsorption capacity of the final product for the removal of cesium ions in solution was also investigated. The results suggested that salt lake clay is a promising low-cost precursor for the production of mesoporous aluminosilicate supports through one-pot syntheses, and the final composite material is effective for the adsorption of cesium ions from solutions containing other alkali metal ions.
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影响因子：
6.2
作者：
S. D. Roy;M. Das
通讯作者：
S. D. Roy;M. Das
影响因子：
4.8
作者：
M. Yalamanchili;Jan D. Miller
通讯作者：
M. Yalamanchili;Jan D. Miller
影响因子：
--
作者：
Yu Liu;T. Pinnavaia
通讯作者：
Yu Liu;T. Pinnavaia
DOI：
10.1007/bf02516321
发表时间：
1974-09
期刊：
Journal of Radioanalytical Chemistry
影响因子：
--
作者：
J. Stejskal;J. Soukup;J. Dolezal;V. Kouřím
通讯作者：
J. Stejskal;J. Soukup;J. Dolezal;V. Kouřím
影响因子：
62.1
作者：
Y. Jeannin
通讯作者：
Y. Jeannin