花状Co3O4微球的制备及其对碱性品红的吸附性能研究  

Preparation of flower-like Co_3O_4 microspheres for adsorption of basic fuchsin from waste water

作　　者：周轮伟[1] 耿旺昌[1] 张宝亮[1] 辛铁军[1] 刘梦姣[1] 张秋禹[1] 

机构地区：[1]西北工业大学理学院、空间物理与化学教育部重点实验室,西安710129

出　　处：《功能材料》2014年第8期8115-8119,8123,共6页Journal of Functional Materials

基　　金：陕西省国际科技合作资助项目(2011KW-12);国家自然科学基金青年基金资助项目(21201140);西北工业大学研究生创业种子基金资助项目(Z2013162)

摘　　要：通过调节溶剂热合成工艺制备了两种花状中空四氧化三钴(Co3O4)微球,并采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、氮气吸附脱附仪、紫外-可见吸收光谱仪(UV-Vis)、红外光谱仪(FT-IR)等手段对Co3O4微球的形貌、尺寸、晶形结构、孔性能等进行了表征。结果表明,两种微球尺寸均为微米级,Co3O4晶体结构为立方相尖晶石结构;两种微球的比表面积分别为26.77和2.51m2/g。两种Co3O4微球对污染物碱性品红的吸附性及解吸再利用性的研究结果显示,Co3O4微球对碱性品红的最大饱和吸附量为2.7mg/g,且重复再生循环6次后,吸附效率仍保持在60%以上。In this paper,two kinds of flower-like Co3O4hollow microspheres were synthesized by solvothermal process.The scanning electron microscopy（SEM）,X-ray diffraction（XRD）,nitrogen adsorption instrument,UV-visible diffuse reflectance spectroscopy（UV-Vis）,infrared spectrometer（FT-IR）were used to characterize the size,crystal structure,pore properties of the Co3O4hollow microspheres.The results showed that the two kinds of Co3O4 microspheres are micron-sized,cubic phase spinel structure,and the specific surface area were26.77and 2.51m2/g,respectively.The adsorption and regeneration properties of the two kinds of Co3O4 microspheres to basic fuchsin were compared.The study results showed that the two kinds of Co3O4 microspheres exhibited high adsorption capacities and excellent regeneration ability to basic fuchsin.The solid-phase adsorbate concentration at equilibrium was 2.7 mg/g.After recycling 6times,the adsorption efficiency was still above 60%.

关 键 词：CO3O4 碱性品红 花状结构 溶剂热法 吸附 

分 类 号：O647[理学—物理化学]