Efficient Photodegradation of Endocrine-Disrupting Chemicals with Bi2O3–ZnO Nanorods Under a Compact Fluorescent Lamp
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- 作者：Sze-Mun Lam (1)
Jin-Chung Sin (1)
Ahmad Zuhairi Abdullah (1)
Abdul Rahman Mohamed (1) - 关键词：Zinc oxide ; Bismuth oxide ; Nanocomposite ; Photocatalytic ; Endocrine ; disrupting chemical
- 刊名：Water, Air, and Soil Pollution
- 出版年：2013
- 出版时间：May 2013
- 年：2013
- 卷：224
- 期：5
- 全文大小：603 KB
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Jin-Chung Sin (1)
Ahmad Zuhairi Abdullah (1)
Abdul Rahman Mohamed (1)
1. School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia - ISSN：1573-2932
文摘
Nanoscaled Bi2O3 particles coated on ZnO nanorods (ZNRs) have been fabricated by combining hydrothermal technique with a chemical precipitation method. X-ray diffraction, field emission-scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and UV–vis absorption and photoluminescence studies were adapted to characterize the structure, morphologies, and optical properties of the nanocomposites. The results indicated that small Bi2O3 nanoparticles were well distributed on the surfaces of ZNRs. And the Bi2O3–ZNR nanocomposites showed high charge separation efficiency and ?OH generation ability as evidenced by photoluminescence spectra. Under irradiation of a 55-W compact fluorescent lamp, the Bi2O3–ZNR nanocomposites demonstrated photocatalytic activities higher than pure ZNRs in the degradation of two endocrine-disrupting chemicals, phenol and methylparaben, which might be attributed to the high separation efficiency of photogenerated electron–hole pairs based on the cooperative role of Bi2O3 loading on ZNRs. Moreover, the Bi2O3–ZNR nanocomposite could be easily recovered and reused due to their one-dimensional nanostructural property. All these characteristics brought enormous benefits of Bi2O3–ZNR nanocomposites to the practical application in indoor environmental remediation.