Colloidal Synthesis of Lettuce-like Copper Sulfide for Light-Gating Heterogeneous Nanochannels
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- 作者：Huan Wang ; Qian Liu ; Wenhua Li ; Liping Wen ; Dong Zheng ; Zhishan Bo ; Lei Jiang
- 刊名：ACS Nano
- 出版年：2016
- 出版时间：March 22, 2016
- 年：2016
- 卷：10
- 期：3
- 页码：3606-3613
- 全文大小：508K
- ISSN：1936-086X
文摘
Lettuce-like CuxS micron particles were successfully prepared by a colloidal hot-injection method, and the preliminary evaluation of the light-gating artificial ionic nanochannels designed using these particles was also demonstrated. A likely underlying mechanism behind the formation of the lettuce architecture was tentatively proposed via monitoring the evolution process. These particles are hydrophobic and possess a high surface area that can readily absorb the light-responsive 1,3,3-trimethylindolino-6′-nitrobenzopyrylospiran (Spiro) molecules. Finally, the heterogeneous nanochannels were constructed by spin-coating the preprepared CuxS particles loaded with Spiro onto the commercially available anodic alumina (AAO) substrate. The AAO-CuxS/Spiro heterogeneous nanochannels “close” under illumination of ultraviolet light (365 nm) and then “open” by visible light irradiation, which exhibits a regulated ionic transport property with good responsive switchability and stability.