Multifunctional mesoporous material for detection, adsorption and removal of Hg2+ in aqueous solution
文献类型：期刊论文
| 作者 | Wang, Chan1; Tao, Shengyang1; Wei, Wei2; Meng, Changgong1; Liu, Fengyu1; Han, Mei1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2010 |
| 卷号 | 20期号:22页码:4635-4641 |
| 关键词 | SENSITIVE FLUORESCENT CHEMOSENSOR METAL-IONS MAGNETIC NANOPARTICLES SELECTIVE DETECTION SILICA MICROSPHERES SPHERES WATER SPIROLACTAM RECOGNITION |
| ISSN号 | 0959-9428 |
| 通讯作者 | Tao, SY |
| 英文摘要 | A novel, "all-in-one'', multifunctional microsphere with a fluorescent mesoporous silica shell (Rhodamine B coordinate receptor inside) and a magnetic core (Fe3O4) has been successfully fabricated using a sol-gel method and small molecular (CTAB) surfactants as structure-directing agents. At the same time, they were examined for environmental protection applications to detect, adsorb and remove Hg2+ in aqueous solution. The prepared nanocomposite microspheres were fluorescent, mesoporous, and magnetizable, with a diameter of 300-450 nm, a surface area of 600 m(2) g(-1), a pore size of 2.5 nm, and a saturation magnetization of 27.5 emu g(-1). These multifuctional microspheres showed excellent fluorescence sensitivity and selectivity towards Hg2+ over other metal ions (Na+, Mg2+, Mn2+, Co2+, Ni2+, Zn2+, Cd2+, Ag+, Pb2+ and Cu2+). Upon the addition of Hg2+, an overall emission change of 16-fold was observed, and the detection limit of Hg2+ was as low as 10 ppb. The adsorption process of Hg2+ on the microspheres was well described by the Langmuir equation. The equilibrium can be established within five minutes and the adsorption capacity was 21.05 mg g(-1). The concentration of Hg2+ ions can be reduced to less than 0.05 ppm and the used microspheres can be easily separated from the mixture by adding an external magnetic field. These results suggest that these "all-in-one'' multifunctional nanocomposites are potentially useful materials for simultaneously rapidly detecting and recovering dangerous pollutants in aqueous solution. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Materials Science |
| 关键词[WOS] | SENSITIVE FLUORESCENT CHEMOSENSOR ; METAL-IONS ; MAGNETIC NANOPARTICLES ; SELECTIVE DETECTION ; SILICA ; MICROSPHERES ; SPHERES ; WATER ; SPIROLACTAM ; RECOGNITION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000278046000015 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6247]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Dalian Univ Technol, Sch Chem Engn, Dalian, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chan,Tao, Shengyang,Wei, Wei,et al. Multifunctional mesoporous material for detection, adsorption and removal of Hg2+ in aqueous solution[J]. JOURNAL OF MATERIALS CHEMISTRY,2010,20(22):4635-4641. |
| APA | Wang, Chan,Tao, Shengyang,Wei, Wei,Meng, Changgong,Liu, Fengyu,&Han, Mei.(2010).Multifunctional mesoporous material for detection, adsorption and removal of Hg2+ in aqueous solution.JOURNAL OF MATERIALS CHEMISTRY,20(22),4635-4641. |
| MLA | Wang, Chan,et al."Multifunctional mesoporous material for detection, adsorption and removal of Hg2+ in aqueous solution".JOURNAL OF MATERIALS CHEMISTRY 20.22(2010):4635-4641. |
入库方式： OAI收割
来源：过程工程研究所
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