摘要
使用阴离子表面活性剂十二烷基硫酸钠(SDS)-尿素(Urea)辅助水热法成功合成了3D花状钨酸锌(ZnWO4),采用X射线衍射(XRD)、扫描电子显微镜(SEM)对其结构和形貌进行表征.研究发现:SDS-Urea的协同作用促使ZnWO4由零维、一维向三维结构转变,对诱导3D花状ZnWO4的形成起到重要作用.以3D花状ZnWO4为吸附剂,铜离子溶液为模拟废水,测定其在水体中的吸附行为,结果显示3D花状ZnWO4对Cu2+吸附性能优于商品活性炭,最大吸附容量达293.1mg·g-1.优良的吸附性能归因于合成产物较大的比表面积、丰富的孔隙结构和表面负电性.
In this paper,3D flower-like ZnWO4 was successfully synthesized by a anionic surfactant sodium dodecyl sulfate(SDS)-Urea assisting hydrothermal method. The structures of the as-prepared products were characterized by X-ray diffraction(XRD)and the morphological studies were detected with scanning electron microscopy.It has been found that the morphology of ZnWO4 was transformed from 0D,1D to 3D flower-like structure due to the synergistic effect of SDS-Urea.Served as an adsorbent,the as-prepared 3D flower-like ZnWO4 exhibits more excellent adsorption performance for Cu2+than that of commercial activated carbon and its adsorption capacity reaches 293.1mg·g-1,which might be ascribed to its large BET specific surface areas,abundant pore structures and negative charge.
出处
《安徽大学学报(自然科学版)》
CAS
北大核心
2015年第5期74-80,共7页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(21171002)
安徽省自然科学基金资助项目(11040606M55)
安徽省教育厅自然科学基金资助项目(KJ2010A015)
安徽大学研究生学术创新研究项目(yqh100066)
关键词
3D花状
ZnWO4
水热法
吸附
3D flower-like
ZnWO4
hydrothermal method
adsorption
作者简介
向育斌(1987-),男,陕西汉中人,安徽大学硕士研究生;
宋继梅(通信作者),安徽大学教授,硕士生导师,博士,E-mail:jmsongsss@163.com.