کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
577254 | 1453102 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of large pore size of multifunctional mesoporous microsphere on removal of heavy metal ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of large pore size of multifunctional mesoporous microsphere on removal of heavy metal ions Effect of large pore size of multifunctional mesoporous microsphere on removal of heavy metal ions](/preview/png/577254.png)
چکیده انگلیسی
A novel multifunctional microsphere with a large pore size mesoporous silica shell (ca. 10.3Â nm) and a magnetic core (Fe3O4) has been successfully synthesized via a facile two-step sol-gel method. In the synthesis process, CTAB was first dissolved in water to form spherical micelles, then added to the mixture in which Fe3O4@SiO2 was dispersed in ethanol, next dropping TEOS to form Fe3O4@SiO2@CTAB/SiO2 composites. This approach helps to form mesoporous silica shell with a large pore size, which is propitious to the modification of much more amino groups in order to enhance the adsorption capacity of heavy metal ions. The metal-loaded multifunctional microspheres can be easily removed from aqueous solution by magnetic separation and regenerated easily by acid treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volumes 254â255, 15 June 2013, Pages 157-165
Journal: Journal of Hazardous Materials - Volumes 254â255, 15 June 2013, Pages 157-165
نویسندگان
Qing Yuan, Nan Li, Yue Chi, Wangchang Geng, Wenfu Yan, Ying Zhao, Xiaotian Li, Bin Dong,