Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 43, Issue 23, Pages 8968-8973Publisher
AMER CHEMICAL SOC
DOI: 10.1021/es902568h
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Funding
- National Natural Science Foundation of China [20671003, 20971003]
- Key Project of Chinese Ministry of Education [209060]
- Education Department of Anhui Province [2006KJ006TD]
- Program for Innovative Research Team in Anhui Normal University
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A facile method is introduced to prepare large-area gold-coated ZnO nanorods, featuring the capability to tailor both the spatial distribution and the concentration of metal nanocrystals. The Au nanoparticles-loaded ZnO nanorods exhibit complete catalysis-degradation Rhodamine B within 15 min, which substantially surpass other TiO2- and ZnO-based photocatalysts. Furthermore, The ZnO/Au nanocomposites can removal about 91% of environmental persistent 4-chlorophenol from water after 300 min irradiation. The better photocatalytic performance is attributed to the one-dimentional structure of high-quality ZnO nanorods and the large-area noble metal decoration. These promising results would make this photocatalyst an exceptional choice for the environmental purification of organic pollutants in aqueous solution. This approach may also give rise to a new class of multifunctional materials with possible applications in energy-conversion devices, biofunctionalized materials, and infrared-emitting/detecting devices.
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