| 四氧化三铁/植酸钠对水中六价铬的分离 |
| |
| 引用本文： | 陈璐,傅书悦,凌波,蒋霞燕,张雪茹,王爽,杨海峰.四氧化三铁/植酸钠对水中六价铬的分离[J].上海师范大学学报(自然科学版),2014,43(6):629-634. |
| |
| 作者姓名： | 陈璐 傅书悦 凌波 蒋霞燕 张雪茹 王爽 杨海峰 |
| |
| 作者单位： | 上海师范大学生命与环境科学学院; |
| |
| 基金项目： | 上海师范大学大学生创新实验项目(B-9117-13-007061);国家自然科学面上基金项目(21073121) |
| |
| 摘 要： | 四氧化三铁(Fe3O4)这一用途广泛的功能性磁性纳米粒子,但是由于在制备过程中,其形貌难以控制,团聚严重,大大限制了它的应用.用环境友好的植酸钠(IP6)胶束为模板,利用分子中六个不共面的磷酸酯键,络合铁离子,水解制备了Fe3O4/IP6纳米结构,其有分散性好,长期稳定的特点.Fe3O4/IP6中磷酸酯键可捕获富集水体中Cr(VI)离子,利用Fe3O4的磁性,通过外磁场将Cr(VI)离子从废水中分离出来.实验结果表明:该过程时间短(10 min),效果理想.还观察了水体p H值变化对Fe3O4/IP6纳米粒子分离Cr(VI)的影响.
|
| 关 键 词： | 四氧化三铁 植酸 六价铬 |
| 收稿时间： | 2014/10/24 0:00:00 |
Removal of Cr(VI)in water by Fe3O4/IP6 |
| |
| CHEN Lu,FU Shuyue,LING Bo,JIANG Xiayan,ZHANG Xueru,WANG Shuang and YANG Haifeng.Removal of Cr(VI)in water by Fe3O4/IP6[J].Journal of Shanghai Normal University(Natural Sciences),2014,43(6):629-634. |
| |
| Authors: | CHEN Lu FU Shuyue LING Bo JIANG Xiayan ZHANG Xueru WANG Shuang and YANG Haifeng |
| |
| Institution: | CHEN Lu;FU Shuyue;LING Bo;JIANG Xiayan;ZHANG Xueru;WANG Shuang;YANG Haifeng;College of Life and Environmental Sciencies,Shanghai Normal University; |
| |
| Abstract: | The preparation of functional ferroferric oxide （ Fe3O4 ） magnetic nanoparticles is widely concerned. However, during their preparation, it is difficult to control the morphology of Fe3O4 nanoparticles and also a serious agglomeration exists, greatly re- stricting their applications. In present paper,an economical and ＇green＇ reagent-phytic acid （IP6） can form micelle in the water and then the nanoparticles can grow in a soft template. The as-prepared Fe3 O4/IP6 exhibited a good stability and high dispersion. Fe3O4/IP6 can chelate with Cr （VI） due to its phosphate structure. The Fe3O4/IP6 chelated with Cr （VI） can be removed con- veniently from water using an external magnet. Fe3O4/IP6 nanocomposites have a good adsorption capacity to Cr （VI） within a short time （10 min）. Additionally, the effect of pH on adsorption efficiency was studied. |
| |
| Keywords: | ferroferric oxide phytic acid Cr（VI） |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《上海师范大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《上海师范大学学报(自然科学版)》下载免费的PDF全文 |
|
