以合欢木为模板的海绵状生物遗态ZnO的制备及光催化性能

Preparation and Photocatalytic Activity of Spongy-like ZnO with Albizia Julibrissin as Template

以合欢木为模板合成了具有合欢木结构的氧化锌(ZnO)遗态光催化材料,通过X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、紫外-近红外光谱仪以及傅里叶变换红外光谱仪(FT-IR)等仪器对不同温度下合成样品的物相、形貌、结构及光催化性能等进行了表征和分析。XRD结果表明,本次试验成功地制备了ZnO系列样品,温度的改变并没有对ZnO的晶体结构产生影响;FESEM结果表明,合成的ZnO样品具有多孔和絮状的结构。在紫外-可见光的照射下,试验了ZnO对罗丹明B(RhB)的催化降解性能,结果表明,500℃下合成的ZnO的光催化降解效率最高,为84.6%。

Zinc oxide(ZnO)photocatalytic materials with Albizzia wood structure were synthesized by using Albizzia wood as template.The phase,morphology,structure and photocatalytic properties of the samples were characterized and analyzed with X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),ultraviolet-visible near-infrared spectrophotometer and fourier transform infrared(FT-IR)spectroscopy.The results of X-ray diffraction showed that the ZnO series samples had been successfully prepared and the change of temperature had no effect on the crystal structure of ZnO.FESEM showed that the synthesized ZnO samples possessed porous and flocculent structure.Under the UV-Vis irradiation,the photocatalytic degradation efficiency of ZnO synthesized at 500℃for Rhodamine B(RhB)was the highest,accounting for 84.6%.