Electrochemical and photocatalytic properties of WO3 coatings grown at low temperatures
Electrochemical and photocatalytic properties of WO3 coatings grown at low temperatures
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DOI：
10.1039/c0jm02413a
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发表时间：
2011
影响因子：
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通讯作者：
D. Vernardou;H. Drosos;E. Spanakis;E. Koudoumas;C. Savvakis;N. Katsarakis
中科院分区：
文献类型：
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作者：
D. Vernardou;H. Drosos;E. Spanakis;E. Koudoumas;C. Savvakis;N. Katsarakis
采用一锅直接水热法在显微镜玻璃衬底上生长了氧化钨。尽管工艺简单，但在95°C下用0.3M氢氧化钠生长30h后，涂层表现出可逆的电化学响应，在1M LiClO4溶液中循环伏安实验至少250次，没有明显的降解。同时，该涂层在太阳光照射下表现出显著的光催化活性，对硬脂酸的降解率为52%。根据观察到的材料形貌对结果进行了讨论，并对生长溶液化学的作用进行了检验。
The growth of tungsten oxide was carried out on microscope glass substrates using the one-pot direct hydrothermal method. Despite the simplicity of the technique, the coating grown using 0.3 M NaOH at 95 °C after 30 h, exhibited reversible electrochemical response without significant degradation, as studied by cycling voltammetry experiments for at least 250 times in a solution of 1 M LiClO4. This coating at the same time presented marked photocatalytic activity under solar illumination, degrading stearic acid by 52%. The results are discussed in terms of the materials' observed morphology towards which, the role of the growth solution chemistry is examined.