کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5458445 | 1516174 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effective removal of metal ions from aqueous solution by mesoporous MnO2 and TiO2 monoliths: Kinetic and equilibrium modelling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present study, ordered hierarchically porous silica (by sol-gel method) and metal-oxide monoliths (through nanocasting method) were synthesized. Porous silica and metal oxide monoliths (MnO2 and TiO2) exhibited excellent adsorption for heavy metal ions such as Pb(II) & Cd(II). The morphological and structural study of the synthesized silica and metal oxide monoliths were done by FESEM and XRD analysis. The adsorption studies were conducted in different batches. The maximum adsorption of Pb(II) on SiO2, MnO2 and TiO2 varied from 91 to 125, 166-200 and 769-857Â mg/g respectively depending upon the choice of PEG, which is used as a structure directing/controlling agent. Similarly the maximum adsorption of Cd(II) on SiO2, MnO2 and TiO2 varied from 90 to 100, 100-125 and 667-770Â mg/g respectively. The effects of contact time (0-80Â min), temperature (at 303, 313 and 323Â K) and pH (3-10) on the Pb(II) & Cd(II) removal were also explored.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 720, 5 October 2017, Pages 221-229
Journal: Journal of Alloys and Compounds - Volume 720, 5 October 2017, Pages 221-229
نویسندگان
Manisha Sharma, Diptiman Choudhury, Satyajit Hazra, Soumen Basu,