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The synthesis of mesoporous aluminosilicate using microcline for adsorption of mercury(II)
Wu, XW; Ma, HW; Li, JH; Zhang, J; Li, ZH; Li ZH(李志宏)
2007
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷号315期号:2页码:555-561
通讯作者China Univ Geosci, Natl Lab Mineral Mat, Beijing 100083, Peoples R China ; China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100049, Peoples R China
摘要An economical mesoporous alummosilicate was synthesized with microcline as starting material and the precursor 13X zeolite as seed for crystal structure on mesoporous walls. In this method, a mixture of microcline and Na2CO3 with a molar ratio of 1:1.05 was first calcined at 1093 K for 2.5 h. The calcined materials were mixed with 35 ml C(16)TMABr aqueous solution (containing 8.2g C(16)TMABr) and the precursors of 13X zeolite, resulting in mesoporous aluminosilicate after crystallization of the solution at 378 K for 48 h and calcination of the powder at 823 K for 5 h. The as-synthesized sample has a uniform pore diameter distribution centered at 3.7 nm. The as-synthesized sample had BET surface area of 725 m(2)/g and BJH mean pore diameter of 3.7 run. The FT-IR results revealed that the building units of 13X zeolite were inserted into the pore walls of the as-synthesized sample. The adsorption ratio of mercury(II) onto the as-synthesized adsorbent was about 95%. The adsorption process was found to be spontaneous and can be explained by particle diffusion and chemical ion-exchange mechanisms. The equilibrium concentration of mercury(II) using the as-synthesized sample as the adsorbent was under 1 mu g/L, making the concentration of mercury meet the limit for drinking water in China as recommended by the World Health Organization. (c) 2007 Elsevier Inc. All rights reserved.
文章类型Article
关键词mesoporous microcline mercury(II) adsorption adsorption mechanism aluminosilicate
学科领域Chemistry
研究领域[WOS]Chemistry
DOI10.1016/j.jcis.2007.06.074
URL查看原文
语种英语
WOS类目Chemistry, Physical
WOS记录号WOS:000250064100018
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237929
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Wu, XW,Ma, HW,Li, JH,et al. The synthesis of mesoporous aluminosilicate using microcline for adsorption of mercury(II)[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2007,315(2):555-561.
APA Wu, XW,Ma, HW,Li, JH,Zhang, J,Li, ZH,&李志宏.(2007).The synthesis of mesoporous aluminosilicate using microcline for adsorption of mercury(II).JOURNAL OF COLLOID AND INTERFACE SCIENCE,315(2),555-561.
MLA Wu, XW,et al."The synthesis of mesoporous aluminosilicate using microcline for adsorption of mercury(II)".JOURNAL OF COLLOID AND INTERFACE SCIENCE 315.2(2007):555-561.
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