The effects of vitamin C on ZnO crystal formation

被引：36

作者：

Cho, Seungho ^{[1
]}

Jeong, Haeyoon ^{[2
]}

Park, Da-Hye ^{[1
]}

Jung, Seung-Ho ^{[1
]}

Kim, Hye-Jin ^{[1
]}

Lee, Kun-Hong ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Pohang 790784, Gyungbuk, South Korea

[2] Korean Minjok Leadership Acad, Hoengseong Gun 255823, Gangwon, South Korea

来源：

CRYSTENGCOMM | 2010年 / 12卷 / 03期

关键词：

ZINC-OXIDE NANOWIRES; HYDROTHERMAL GROWTH; ROOM-TEMPERATURE; AQUEOUS-SOLUTION; PHOTOCATALYTIC ACTIVITY; CALCIUM-CARBONATE; CITRIC-ACID; AB-INITIO; NANOSTRUCTURES; MORPHOLOGY;

D O I：

10.1039/b916750a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have studied the effects of L(+)-ascorbic acid (vitamin C) on the formation of ZnO crystals. We carried out a series of experiments under weak acidic to alkaline conditions. We obtained ZnO structures with various distinct morphologies by varying the concentration of vitamin C dissolved in the weak acidic and alkaline solutions. Under weak acidic conditions, if the concentration of added vitamin C exceeds 0.5 mM, mixed amorphous/crystalline vitamin C-ZnO (VitC-ZnO) nanostructures are obtained. We also found that the ZnO content of the VitC-ZnO nanostructures can be controlled by adjusting the concentration of vitamin C added to the reaction solution. On the basis of our results, we propose a mechanism for the formation of the various ZnO structures and VitC-ZnO nanostructures in the presence of vitamin C.

引用

页码：968 / 976

页数：9

共 70 条

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