One-pot separation of tea components through selective adsorption on pore-engineered nanocarbon, carbon nanocage

被引：142

作者：

Ariga, Katsuhiko ^{[1
]}

Vinu, Ajayan ^{[1
]}

Miyahara, Masahiko ^{[1
]}

Hill, Jonathan P. ^{[1
]}

Mori, Toshiyuki ^{[1
]}

机构：

[1] Natl Inst Mat & Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 36期

关键词：

D O I：

10.1021/ja074870t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Simple, economical, and toxic-solvent-free one-pot separation of tea components, such as catechin and tannic acids, has been demonstrated using the novel pore-engineered nanocarbon, carbon nanocage (CNC), with regularly arranged cage-type mesopores. The CNC materials possess larger specific surface areas and pore volumes than conventional mesoporous carbon, CMK-3, and also exhibit excellent adsorption capacities for a typical dye (Alizarin Yellow) and tea components (catechin and tannic acids) relative to activated carbon, CMK-3, and mesoporous silica SBA-15. Competitive adsorption of catechin and tannic acid to the CNC material results in highly selective adsorption of tannic acid (ca. 95%) using a very simple one-pot process.

引用

页码：11022 / +

页数：3

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