Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity

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• 作者：Wei Zhong^a ; Ting Jiang^b ; Tahereh Jafari^a ; Altug S. Poyraz^c ; Wei Wu^a ; ^d ; David A. Kriz^e ; Shoucheng Du^a ; Sourav Biswas^e ; Michael Thompson Pettes^a ; ^d ; Steven L. Suib^a ; ^b ; ^e ; ^{steven.suib@uconn.edu}
• 关键词：Mesoporous alumina (MA) ; Reaction times ; Surfactant chain lengths ; Calcination temperatures and hold times ; Textural properties ; D4 siloxane ; Adsorption
• 刊名：Microporous and Mesoporous Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：239
• 期：Complete
• 页码：328-335
• 全文大小：1812 K
• 卷排序：239

文摘

This is the first time the extension of the inverse micelle synthetic strategy to mesoporous alumina (MA) was used. A reaction time of 8 h when P123 was chosen as the surfactant yielded a material with a high capacity (168 mg/g) for octamethylcyclotetrasiloxane (D4 siloxane), a 32% capacity improvement compared to commercially available activated alumina. Approximately 85% of D4 adsorption capacity can be maintained after three adsorption recycles for the removal of D4 siloxane from biogas under ambient conditions.