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Methyltrimethoxysilane Based Silica Aerogels with Controllable Skeleton Size and Their Adsorption Characteristics for Organic Liquids
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Zhi LI, Liling WU, Siqi HUANG, Kai SHEN, Xi DENG, Qiong LIU, Ming LI
Journal of the Chinese Ceramic Society | 2022, 50(5) : 1347 - 1356
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Journal of the Chinese Ceramic Society | 2022, 50(5): 1347-1356
• Research Articles •
Methyltrimethoxysilane Based Silica Aerogels with Controllable Skeleton Size and Their Adsorption Characteristics for Organic Liquids
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Zhi LI, Liling WU, Siqi HUANG, Kai SHEN, Xi DENG, Qiong LIU, Ming LI
Affiliations
  • School of Resource and Safety Engineering, Central South University, Changsha 410083, China

    • LI Zhi (1989-), male, Ph.D., Associate Professor. E-mail:

About Author:

LI Zhi (1989-), male, Ph.D., Associate Professor. E-mail:

Published: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210583
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Methyltrimethoxysilane (MTMS) based silica aerogels (MSA) with a controllable skeleton size were synthesized in pure water via adjusting the cetyltrimethylammonium bromide (CTAB) content. The results show that the content of CTAB has little effect on the surface chemical composition of MSA, while the skeleton size and pore size of MSA decrease with increasing the CTAB content. The average skeleton diameter (d) of MSA decreases from 2.39 μm to 0.55 μm, and the adsorption capacity for organic liquids decreases simultaneously when the CTAB content increases from 0.01 g to 0.03 g. When the CTAB content is 0.01 g, the as-prepared MSA has good adsorption properties for alcohols and alkanes, where the maximum adsorption capacity reaches 10 g/g, the adsorption rate of the pumping application is 1.04 g/s, and the capillary rise speed of organic liquids can reach 2.1 mm/s. Furthermore, the high thermal stability (456 ℃) of MSA ensures the realization of thermal desorption. A preparation method of MSA with a controllable skeleton size to obtain aerogels with specific adsorption properties.

silica aerogels  /  methyltrimethoxysilane  /  adsorption  /  capillary rise
李治, 吴丽玲, 黄思琪, 申凯, 邓曦, 刘琼, 李明. 甲基三甲氧基硅烷基SiO2气凝胶骨架尺寸调控及对有机液体的吸附特性. 硅酸盐学报, 2022 , 50 (5) : 1347 -1356 . DOI: 10.14062/j.issn.0454-5648.20210583
Zhi LI, Liling WU, Siqi HUANG, Kai SHEN, Xi DENG, Qiong LIU, Ming LI. Methyltrimethoxysilane Based Silica Aerogels with Controllable Skeleton Size and Their Adsorption Characteristics for Organic Liquids[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1347 -1356 . DOI: 10.14062/j.issn.0454-5648.20210583
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Year 2022 volume 50 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20210583
  • Receive Date：2021-07-09
  • Online Date：2026-10-22
  • Published：2022-05-20
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  • Received：2021-07-09
  • Revised：2021-09-08
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    School of Resource and Safety Engineering, Central South University, Changsha 410083, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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