Eu2+ and Eu3+ Doubly Doped ZnWO4 Nanoplates with Superior Photocatalytic Performance for Dye Degradation
作者： Yuan Huang , Ming Li , Long Yang , Bao-gai Zhai
DOI: 10.3390/NANO8100765
关键词: Ammonium bromide 、 Nanoparticle 、 Transmission electron microscopy 、 Methyl orange 、 Photocatalysis 、 Chemical engineering 、 Crystal 、 Materials science 、 Scanning electron microscope 、 Photoluminescence
摘要: Eu2+ and Eu3+ doubly doped ZnWO4 nanoplates with highly exposed {100} facets were synthesized via a facile hydrothermal route in the presence of surfactant cetyltrimethyl ammonium bromide. These characterized using scanning electron microscopy, transmission X-ray diffraction, photoelectron spectrometry, diffuse UV-vis reflectance spectroscopy, photoluminescence spectrophotometry, lifetime spectroscopy to determine their morphological, structural, chemical, optical characteristics. It is found that Eu-doped exhibit superior photo-oxidative capability completely mineralize methyl orange into CO2 H2O, whereas undoped nanoparticles can only cleave organic molecules fragments. The photocatalytic performance be attributed cooperative effects crystal facet engineering defect engineering. This valuable report on combination for development efficient photocatalysts.
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