Thermal stability of tetrabutyl-phosphonium and -ammonium exchanged montmorillonite: Influence of acid treatment

详细信息    查看全文

• 作者：Helena P&aacute ; lkov&aacute ; ^a ; ^{helena.palkova@savba.sk} ; Małgorzata Zimowska^b ; ^{nczimows@cyf-kr.edu.pl} ; Ľubo&scaron ; Jankovič^a ; ^{lubos.jankovic@savba.sk} ; Bogdan Sulikowski^b ; ^{ncsuliko@cyf-kr.edu.pl} ; Ewa M. Serwicka^b ; ^{ncserwic@cyf-kr.edu.pl} ; Jana Madejov&aacute ; ^a ; ^{jana.madejova@savba.sk}
• 关键词：Tetrabutylammonium ; Tetrabutylphosphonium ; Montmorillonite ; Infrared spectroscopy ; Acid treatment ; Thermal stability
• 刊名：Applied Clay Science
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：138
• 期：Complete
• 页码：63-73
• 全文大小：2019 K
• 卷排序：138

文摘

Tetrabutyl-ammonium and -phosphonium montmorillonites were treated with HCl. Bu4P-S was slightly more susceptible to decomposition in HCl than Bu4N-S. TG and IR of evolved gasses showed higher thermal stability of Bu4P-S than Bu4N-S. Surfactants present on acid-treated samples were released at higher temperature. Variable temperature NIR spectra of solids proved higher stability of Bu4P-S.