Ionic Rectification through the Formation of Complexes or Precipitation in Carbon Nanotube Membranes

被引：0

作者：

Patel, Bhavin ^{[1
]}

Patel, Mayur ^{[1
]}

Bassett, Matthew ^{[1
]}

Landge, Shainaz ^{[1
]}

Huang, Xuezhen ^{[2
]}

Jiang, Hongrui ^{[2
]}

Wu, Ji ^{[1
]}

机构：

[1] Georgia So Univ, Dept Chem, Statesboro, GA 30460 USA

[2] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA

来源：

CHEMISTRY LETTERS | 2013年 / 42卷 / 10期

关键词：

WATER; FLOW; LEAD; FABRICATION; NANOPORES; DNA;

D O I：

10.1246/cl.130500

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon nanotube membranes were fabricated using arrays of millimeter-long multiwalled carbon nanotubes (MWCNTs) with an inner diameter of about 8 nm through a low-cost cast polishing method. The fabricated carbon nanotube membranes demonstrated a unique ionic rectification phenomenon through two fundamentally different mechanisms: a) the formation of metal ion complexes and b) the precipitation of insoluble lead molybdate inside the carbon nanotubes. These discoveries could be applied to detecting the presence of toxic metal ions in contaminated water resources through a relatively simple approach.

引用

页码：1173 / 1175

页数：3

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