论文部分内容阅读
将滚压振动磨制备的锌纳米颗粒与普通活性炭按一定比例混合,置于高压反应釜中,在180℃时水热反应24h,制备得到氧化锌/活性炭复合材料(ZnO/AC)。采用X射线衍射、红外光谱、扫描电子显微镜、透射电子显微镜分析了产物的结构和形貌,采用比表面积法(BET)分析了产物的比表面积,最后研究了复合材料对甲基橙的降解特性。结果表明,复合材料是由氧化锌纳米棒在活性炭颗粒表面上包覆生长而形成的,其中氧化锌具有六方纤锌矿结构。复合材料在紫外光条件下对甲基橙的降解性能明显优于其各自单独使用的效果,表现出良好的协同催化效应。
The zinc oxide / activated carbon composites (ZnO / AC) were prepared by mixing the zinc nanoparticles prepared by the rolling vibration mill and common activated carbon in a certain proportion and placed in a high-pressure reactor for 24 hours at 180 ℃. The structure and morphology of the product were analyzed by X-ray diffraction, infrared spectroscopy, scanning electron microscopy and transmission electron microscopy. The specific surface area of the product was analyzed by BET method. Finally, the degradation characteristics of methyl orange . The results show that the composite material is formed by zinc oxide nanorods coated on the surface of activated carbon particles, of which zinc oxide has hexagonal wurtzite structure. The degradation of methyl orange under UV light was significantly better than that of methyl orange alone, showing a good synergistic catalysis effect.