Photocatalysis-Triggered Ion Rectification in Artificial Nanochannels Based on Chemically Modified Asymmetric TiO2 Nanotubes
文献类型：期刊论文
| 作者 | Hu, Ziying1; Zhang, Qianqian1; Gao, Jun2; Liu, Zhaoyue1; Zhai, Jin1; Jiang, Lei1,2 |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2013-04-16 |
| 卷号 | 29期号:15页码:4806-4812 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la400624p |
| 英文摘要 | Ion rectification is one of the important characteristics of biological ion channels. Inspired by the function of biological ion channels, creation of artificial nanochannels that show analogous ion rectification characteristics has attracted a great interest recently. Herein, we demonstrate a new type of artificial solid-state nanochannel with ion rectification characteristics. The creation of artificial nanochannels includes the formation of asymmetric TiO2 nanotubes by electrochemical anodization of Ti metal, followed by chemical modification with octadecyltrimethoxysilane (OTS) molecules. The carboxylic groups are introduced onto the tip side of TiO2 nanotubes via photocatalytic decomposition of OTS molecules by TiO2 photocatalysis under ultraviolet light. When the radius of tip side of TiO2 nanotubular channels is comparable to the thickness of electric double layer, the negatively charged surface in neutral electrolyte in combination with the asymmetric pore geometry contributes to the ion rectification characteristics. Compared with previous artificial nanochannels, our new type of artificial nanochannel is more facile to fabricate and behaves as a diode that rectifies the ion transport, which also shows some other potential applications, such as sensor and separation materials. |
| 语种 | 英语 |
| WOS记录号 | WOS:000317813300019 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53865]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhaoyue |
| 作者单位 | 1.Beihang Univ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Minist Educ, Sch Chem & Environm, Beijing 100191, Peoples R China 2.Chinese Acad Sci, BNLMS, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Ziying,Zhang, Qianqian,Gao, Jun,et al. Photocatalysis-Triggered Ion Rectification in Artificial Nanochannels Based on Chemically Modified Asymmetric TiO2 Nanotubes[J]. LANGMUIR,2013,29(15):4806-4812. |
| APA | Hu, Ziying,Zhang, Qianqian,Gao, Jun,Liu, Zhaoyue,Zhai, Jin,&Jiang, Lei.(2013).Photocatalysis-Triggered Ion Rectification in Artificial Nanochannels Based on Chemically Modified Asymmetric TiO2 Nanotubes.LANGMUIR,29(15),4806-4812. |
| MLA | Hu, Ziying,et al."Photocatalysis-Triggered Ion Rectification in Artificial Nanochannels Based on Chemically Modified Asymmetric TiO2 Nanotubes".LANGMUIR 29.15(2013):4806-4812. |
入库方式： OAI收割
来源：化学研究所
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