材料科学
光催化
亚甲蓝
水溶液
热液循环
锌
扫描电子显微镜
复合数
中心组合设计
化学工程
纳米线
降级(电信)
响应面法
碳纤维
氧化物
水热合成
核化学
纳米技术
复合材料
催化作用
冶金
有机化学
化学
色谱法
电子工程
工程类
作者
Irmak Doğan Tunç,Mustafa Erol,Fethullah Güneş,Mücahit Sütçü
标识
DOI:10.1016/j.ceramint.2019.11.244
摘要
In this work, effects of hydrothermal (HT) synthesis method parameters, temperature, concentration and growth time, on the formation of zinc oxide nanowire structures on carbon fibers (ZnO NWs/CFs) were evaluated. Morphological, structural, photocatalytic properties were determined through scanning electron microscopy (SEM), X-ray diffraction (XRD), and UV–Visible spectrophotometer. In addition, response surface methodology (RSM) and central composite design (CCD) were applied to optimize the hydrothermal synthesis parameters. The results pointed out that, the change in hydrothermal solution concentration (from 3.2 to 37 mM ZnNO3·6H2O) and process time (from 2.6 to 9.2 h) lead to the increase in thickness and decrease in aspect ratio of zinc oxide nanowires. Whereas, the temperature increases from 80 to 130 °C had a minute effect on the structure. ZnO nanowires with zincite structure were obtained for all processing conditions. Finally, photocatalytic activity of ZnO NWs/CFs on the degradation of aqueous methylene blue solution (MB) were recorded comparatively. ZnO NWs/CFs structure exhibited photocatalytic activity in the degradation of methylene blue (MB). The most effective structure was obtained at 120 °C, 30 mM Zn(NO3)2·6H2O and 4 h HT synthesis parameters.
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