以紫茎泽兰为模板制备的C/TiO2复合材料对苯酚吸附性能的研究
Adsorption of phenol by C/TiO2 composites prepared with eupatorium adenophorum as the template
云南民族大学学报:自然科学版,2017,26(2):112-116

聂敏芳 NMF

摘要


选用紫茎泽兰茎和叶为模板制备了C/TiO2复合材料,采用X线衍射(XRD)、N2等温吸附-脱附、电子扫描电镜(SEM)、电子透射电镜(TEM) 和电子能谱等技术,对产物进行表征和分析;并研究了不同煅烧时间、煅烧温度条件下以紫茎泽兰为模板制备的C/TiO2复合材料对苯酚吸附能力的影响.结果表明,以紫茎泽兰叶和茎为模板的C/TiO2材料,成功保留了紫茎泽兰叶和茎的气孔,叶脉、茎维管束和孔道结构.煅烧时间为4h、煅烧温度为1000℃时,以紫茎泽兰叶为模板制备的C/TiO2复合材料对质量浓度为50×10 -6苯酚吸附效果最佳,吸附率达到97.8%. Carbon/titania composites (C/TiO2) were prepared by using the stems and leaves of Eupatorium adenophorum as the template, which were characterized and analyzed by X-ray diffraction (XRD), N2 isothermal adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscope (TEM) and electron energy spectrum. The effects of calcination temperature and calcination time on the adsorptive ability of C/TiO2 composites have been investigated. The results show that the carbon material in carbon/titania composite (C/TiO2) have retained the stomatal, vascular veins and stomatal structures of the leaves and stems of Eupatorium adenophorum. C/TiO2 templated by the leaves of Eupatorium adenophorum at the calcination time of 4 h and calcination temperature of 1 000 ℃ is the best, while the adsorption rate is 97.8%.

参考



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