论文部分内容阅读
通过化学还原法及退火处理制备出了锌掺杂的氧化镍(Zn∶NiO)纳米线。用扫描电子显微镜、X射线衍射以及能量色散谱对纳米线的结构和组分进行了测试与分析。测试结果显示:所制备的Zn∶NiO纳米线不含其他杂质,为面心立方结构的纯相晶体。纳米线尺寸均匀,直径约为300 nm,长度约为100μm。同时,纳米线表面生长着细小的尖刺结构。以氙灯为照射光源,研究了Zn∶NiO纳米线对于降解甲基橙染料的光催化活性。研究结果表明:Zn∶NiO纳米线具有良好的光催化活性,在进行光催化5 h后甲基橙的降解率约为58%。
Zinc-doped nickel oxide (Zn: NiO) nanowires were prepared by chemical reduction and annealing. The structure and composition of nanowires were tested and analyzed by scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy. The test results show that the prepared Zn:NiO nanowires contain no other impurities and are pure-face-centered cubic crystals. The nanowires are uniform in size and have a diameter of about 300 nm and a length of about 100 μm. At the same time, the surface of nanowires grew fine spike structure. The photocatalytic activity of Zn:NiO nanowires for degradation of methyl orange dye was studied by using xenon lamp as illuminating light source. The results show that: Zn: NiO nanowire has good photocatalytic activity, the photocatalytic degradation of methyl orange after 5 h of about 58%.