Periodic Mesoporous Organosilicas as Adsorbents of Toxic Trace Gases out of the Ambient Air
Periodic Mesoporous Organosilicas as Adsorbents of Toxic Trace Gases out of the Ambient Air
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DOI：
10.1002/zaac.201300519
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发表时间：
2014-03
期刊：
影响因子：
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通讯作者：
S. Martens;Roman Ortmann;F. Brieler;C. Pasel;Young Joo Lee;D. Bathen;M. Fröba
中科院分区：
文献类型：
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作者：
S. Martens;Roman Ortmann;F. Brieler;C. Pasel;Young Joo Lee;D. Bathen;M. Fröba
以双（三乙氧基硅基）乙烯基苯胺（BTEVA）和双（三乙氧基硅基）乙烯基苯（BTEVB）为前驱体，通过氨基丙基化改性，合成了新型周期性介孔有机硅.所有PMO材料在各自的P-XRD中显示出高度的六方有序性以及具有窄孔径分布的高表面积。用GC-MS联用仪研究了PMO与活性炭的吸附性能，发现胺PMO在吸附过程中有两个不同的区域，在第一个区域，吸附量在30wt%左右，吸附过程较快;在第二个区域，
New periodic mesoporous organosilicas were synthesized using (bis(triethoxysilyl)vinyl)aniline (BTEVA) and (bis(triethoxysi- lyl)vinyl)benzene (BTEVB) as precursors and by functionalizing the BTEVA PMO with aminopropyl groups. All PMO materials showed a high degree of hexagonal order in the respective P-XRDs as well as high surface areas with narrow pore size distributions. The PMOs to- gether with activated carbon were investigated with regards to their hexanal adsorption capacity in a gravimetric apparatus with an at- tached GC-MS. For the amine PMOs two different regions during ad- sorption were found. In the first region loadings in the range of 30 wt% were reached by a fast adsorption process. In the second region the