摘要
以Zn(Ac)2·2H2O和NaOH为反应物,以离子液体1-苄基-3-甲基咪唑四氟硼酸盐[Bzmim][BF4]水溶液为反应介质,在80℃制得纳米针状ZnO。采用扫描电子显微镜(SEM)、X射线衍射(XRD)和紫外-可见吸收光谱(UV-Vis absorption spectra)对纳米ZnO的形貌和结构进行了表征,以有机染料亚甲基蓝溶液为光催化反应模型降解物,考察纳米ZnO的光催化性能。结果表明:制备出的纳米ZnO呈针状,宽约25nm,长约220nm,为六方纤锌矿结构。紫外灯照射180min后,对亚甲基蓝溶液的降解率可达到97.1%。
ZnO nanoneedles have been synthesized by the reaction between Zn（Ae）2 · 2H2O and NaOH in the ionic liquid 1-benzyl-3-methylimidazolium tetrafluoroborate [Bzmim][BF4 ] aqueous solution. The morphology and structure of the samples were characterized by means of SEM, XRD and UV-Vis absorption spectra. The photocata- lytic performance of ZnO nanopartiles were carried out to degrade methylene blue solution. The results showed that, ZnO nanoneedles were about 25 nm width, 220 nm long and exhibit a typical wurtzite structure. The photocatalytic degradation rate was 97. 1% under UV irradiation for 180 min.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第14期31-34,共4页
Materials Reports
基金
国家自然科学基金(21271152)
许昌学院校内科研基金(2013069)
关键词
离子液体
氧化锌
亚甲基蓝
光降解
ionic liquid, zinc oxide, methylene blue, photodegradation
