Preparation of magnetic hierarchically porous microspheres with temperature-controlled wettability for removal of oils
文献类型：期刊论文
| 作者 | Li, Guangtao3; Jiang, Lei2; Tao, Shengyang1; Ding, Yunzhe1 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2017-04-15 |
| 卷号 | 492页码:73-80 |
| 关键词 | Microfluidic Monodispersed Microspheres Removal Of Oils |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2016.12.069 |
| 文献子类 | Article |
| 英文摘要 | A series of monodispersed microspheres with hierarchically porous structures were prepared by microfluidic devices. Phase separation of the silica sol in microdroplets was adopted to construct these structures. The effects of velocity ratios (for both the continuous and the dispersed phases), collection solvents and calcination temperatures were investigated. The diameters of the microspheres were tuned from 148 mu m to 940 mu m by adjusting the velocity ratio. Tests revealed that the surface areas and pore volumes of the microspheres can reach 495 m(2) g(-1) and 0.6068 ml g(-1), respectively. The macroporous structure can be controlled by the collection solvents, and the wettability of the microspheres is determined by the calcination temperature. A calcination temperature of 450 degrees C leads to a hydrophilic surface property. Fe3O4 nanoparticles were added to the silica sol to form magnetic microspheres, and the porous structure was not affected. This kind of hybrid microsphere adsorbs 3.29 times its own weight in toluene. These spheres can adsorb oil on water surfaces, and then be removed from the water with an external magnetic field. The microspheres can be recovered and reused more than 10 times. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | MESOPOROUS SILICA ; SHELL ; POLYMER ; MICROFLUIDICS ; EMULSIONS ; CATALYST ; MICROCAPSULES ; NANOPARTICLES ; GENERATION ; MORPHOLOGY |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000395228500009 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169480]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Li, Guangtao; Tao, Shengyang |
| 作者单位 | 1.Dalian Univ Technol, Dept Chem, Dalian 116024, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Biotechnol Lab, Dalian 116023, Liaoning, Peoples R China 3.Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Guangtao,Jiang, Lei,Tao, Shengyang,et al. Preparation of magnetic hierarchically porous microspheres with temperature-controlled wettability for removal of oils[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,492:73-80. |
| APA | Li, Guangtao,Jiang, Lei,Tao, Shengyang,&Ding, Yunzhe.(2017).Preparation of magnetic hierarchically porous microspheres with temperature-controlled wettability for removal of oils.JOURNAL OF COLLOID AND INTERFACE SCIENCE,492,73-80. |
| MLA | Li, Guangtao,et al."Preparation of magnetic hierarchically porous microspheres with temperature-controlled wettability for removal of oils".JOURNAL OF COLLOID AND INTERFACE SCIENCE 492(2017):73-80. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。