کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5408330 | 1506530 | 2017 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective adsorption of Ag+ by silica nanoparticles modified with 3-Amino-5-mercapto-1,2,4-triazole from aqueous solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Selective adsorption of Ag+ by silica nanoparticles modified with 3-Amino-5-mercapto-1,2,4-triazole from aqueous solutions Selective adsorption of Ag+ by silica nanoparticles modified with 3-Amino-5-mercapto-1,2,4-triazole from aqueous solutions](/preview/png/5408330.png)
چکیده انگلیسی
A novel adsorbent was synthesized via modifying silica nanoparticles with 3-Amino-5-mercapto-1,2,4-triazole and was used to selectively adsorb silver ions from aqueous solutions. The adsorbent was confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscope and Brunauer-Emmett-Teller (BET) surface area analysis. Batch adsorption experiments were carried out to evaluate the adsorption conditions, reusability and selectivity. The results showed that the optimum pH is 5 and the maximum adsorbability was 124.52Â mg/g. The adsorption rate was very high and equilibrium was achieved within 20Â min. The total adsorption process preferably followed the pseudo-second order kinetics and the Langmuir isotherm model. The sorbent was stable and efficient. After used five times, the adsorbability was 98.72% of the initial adsorbability. Moreover, the adsorbent adsorb selectively Ag+ from coexisting ions in aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 241, September 2017, Pages 292-300
Journal: Journal of Molecular Liquids - Volume 241, September 2017, Pages 292-300
نویسندگان
Likang Fu, Libo Zhang, Shixing Wang, Jinhui Peng, Gengwei Zhang,