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| 摘要: |
| 以粉煤灰空心微珠为载体,采用溶胶-凝胶法在其表面沉积钡铁氧体层,制得钡铁氧体空心微珠(BFEC).SEM,EDS研究表明:BFEC表面形成网络状钡铁氧体包覆层,具有磁性.将BFEC均匀地撒布于油-水混合液表面,它可以与油液形成均匀混合体并悬浮于水面上.在磁场作用下,该混合体向磁场方向运动.因此,BFEC可用于水域油污的治理. |
| 关键词: 空心微珠,水域油污,磁性,铁氧体 |
| DOI： |
| 分类号:TE991.2 |
| 基金项目:上海市科委纳米项目(0552nm029) |
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| Study on Clearing away Oil Floated on Water with Fly Ash Cenospheres |
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ZHANG Yan-qing CHEN Yu-yun
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| Abstract: |
| Barium ferrite encapsulated(cenospheres(BFEC)) were prepared with citrate sol-gel method.The microstructure of the product were tested by SEM and EDS.It was found that the BFEC was coated with network of barium ferrite, which exhibited the magnetic absorption pro-(perty.) BFEC can float on oil-water surface.If a magnetic field is applied,the BFEC-oil mixture would move in magnetic direction.Therefore,BFEC can be used in clearing away oil floated on water. |
| Key words: cenospheres,polluted water by oil,magnetism,ferrite |
