ZnO nanocapsules for photocatalytic degradation of thionine

被引：43

作者：

Khayyat, Suzan A. ^{[2
]}

Akhtar, M. S. ^{[3
]}

Umar, Ahmad ^{[1
,4
]}

机构：

[1] Najran Univ, Dept Chem, Fac Sci & Arts, Najran 11001, Saudi Arabia

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah, Saudi Arabia

[3] Chonbuk Natl Univ, New & Renewable Energy Mat Dev Ctr New REC, Chonju, South Korea

[4] Najran Univ, Promising Ctr Sensors & Elect Devices PCSED, Najran 11001, Saudi Arabia

来源：

MATERIALS LETTERS | 2012年 / 81卷

关键词：

ZnO nanocapsules; Thionine dye; Photocatalysts; Photodegradation; Illumination; VISIBLE-LIGHT ILLUMINATION; NANOSHEETS; NANORODS; DYES;

D O I：

10.1016/j.matlet.2012.04.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reports the successful synthesis of ZnO nanocapsules and their utilization as a photocatalyst for photocatalytic degradation of thionine. The nanocapsules were synthesized by facile hydrothermal process and characterized in detail in terms of their morphological, structural and optical properties. The detailed studies revealed that the synthesized nanocapsules possess well-crystalline and good optical properties. By utilizing the as-synthesized ZnO nanocapsules as a photocatalyst, significant photocatalytic degradation was observed towards thionine dye under light illumination. The considerable photo-degradation of thionine dye was due to the unique morphology and high surface area of synthesized ZnO nanocapsules which might import the effective electron/hole separation and might generate the large number of oxy-radicals. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：239 / 241

页数：3

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