Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 254, Issue -, Pages 318-324Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2013.04.012
Keywords
Microreactor; Pt/ZnO nanorods; Photodegradation; Phenol
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Funding
- Natural Science Foundation of China [51072034, 51172042]
- Cultivation Fund of the Key Scientific and Technical Innovation Project [708039]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110075130001]
- Science and Technology Commission of Shanghai Municipality [12nm0503900]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Program of Introducing Talents of Discipline to Universities [111-2-04]
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A high efficiency microreactor with Pt coated ZnO (Pt/ZnO) nanorod arrays on the inner wall was successfully fabricated by pumping a Pt sol into the microchannel containing preformed ZnO nanorod arrays. Phenol was selected as a persistent organic pollutant to evaluate the photocatalytic performance of the microreactors. The microreactor which was coated by Pt sal for 5 min showed the best photocatalytic performance compared with other Pt/ZnO nanorod array-modified microreactors. The presence of Pt nanoparticles on the surfaces of ZnO nanorods promoted the separation of photoinduced electron-hole pairs and thus enhanced the photocatalytic activity. In addition, the recyclable property of the microcreator was investigated. It was found that the microreactor displayed higher durability during the continuous photocatalytic process. (C) 2013 Elsevier B.V. All rights reserved.
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