A facile microwave-hydrothermal method to fabricate B doped ZnWO4 nanorods with high crystalline and highly efficient photocatalytic activity
作者： Zhen Liu , Jian Tian , Debing Zeng , Changlin Yu , Lihua Zhu
DOI: 10.1016/J.MATERRESBULL.2017.06.021
关键词: Materials science 、 Rhodamine B 、 Crystallinity 、 Chemical engineering 、 Photocatalysis 、 Diffuse reflection 、 Doping 、 Lattice constant 、 Nanotechnology 、 Specific surface area 、 Nanorod
摘要: Abstract A series length of 50∼200 nm B doped ZnWO4 nanorods with high crystallinity were fabricated via a fast microwave-hydrothermal method. The effects doping on the physical properties intensively characterized by N2 adsorption, XRD, TEM, FT-IR, XPS, ultraviolet-visible diffuse reflection spectrum (UV–vis DRS), photolunminescence (PL), transient photocurrent response (TPR). results indicated that could replace lattice tungsten ion in crystals, which caused spacing contraction, particle size decrease, specific surface area increase. More importantly, separation photogenerated electrons and holes was significantly enhanced doping. With optimum concentration (2.42 wt%), B/ZnWO4 displayed super photocatalytic performance dyes decomposition. degradation rate constant (0.065 h−1) Rhodamine over (2.42 wt%)/ZnWO4 is 4 times (0.016 h−1).
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