Roles of cation valance and exchange on the retention and colloid-facilitated transport of functionalized multi-walled carbon nanotubes in a natural soil

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• 作者：Miaoyue Zhang^a ; ^d ; Scott A. Bradford^b ; ^{scott.bradford@ars.usda.gov} ; Jirka &Scaron ; imůnek^c ; Harry Vereecken^a ; Erwin Klumpp^a
• 关键词：Multi-walled carbon nanotubes ; Soil ; Breakthrough curves ; Retention profiles ; Cation exchange ; Soil fractionation
• 刊名：Water Research
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：109
• 期：Complete
• 页码：358-366
• 全文大小：1316 K
• 卷排序：109

文摘

The retention of MWCNTs in soil was sensitive to solution IS and cation type. Both breakthrough curves and retention profiles were determined and simulated by HYDRUS 1D. The release of soil colloids and MWCNTs with IS reduction and cation exchange was investigated. The association of soil colloids and MWCNTs was determined by soil fractionation. A large amount of MWCNTs was associated with water-dispersible colloids.