Orientation of β-cyclodextrin onto metal oxides and its paradoxical role in photocatalytic decoloration of 4-nitrophenol
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- 作者：Rajalakshmi Subramanian ; Velusamy Ponnusamy
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：28
- 期：4
- 页码：3440-3450
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
- 出版者：Springer US
- ISSN：1573-482X
- 卷排序：28
文摘
Increasing interest has been devoted to use the metal oxides (MOs = TiO2 and ZnO)/β-cyclodextrin (β-CD) as a photocatalysts for potential application in photo catalysis. By taking TiO2 and ZnO as a metal oxides, we conceptually demonstrate the enhancement of catalytic activity of MOs by β-CD for the photocatalytic decoloration of 4-NP. The present study reveals the ability of β-CD as a low cost co-catalyst for the enhancement of photocatalytic activity. The promising characteristics of MOs/β-CD may have the potential use in various indoor applications. Powder X-ray diffraction analyses results showed that the slight increase in the crystal size of MOs/β-CD leads to a small decrease in the surface area. It is hoped that this work offers a valuable source of reference on application of MO/β-CD as a photo catalysts in the environmental cleanup.