کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5347969 | 1503559 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Activation mechanism of ammonium ions on sulfidation of malachite (-201) surface by DFT study
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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: Activation mechanism of ammonium ions on sulfidation of malachite (-201) surface by DFT study Activation mechanism of ammonium ions on sulfidation of malachite (-201) surface by DFT study](/preview/png/5347969.png)
چکیده انگلیسی
The activation mechanism of ammonium ions on the sulfidation of malachite (â201) was determined by density functional theory (DFT) calculations. Results of DFT calculations indicated that interlayer sulfidation occurs during the sulfidation process of malachite (â201). The absorption of both the ammonium ion and sulfide ion on the malachite (â201) surface is stronger than that of sulfur ion. After sulfidation was activated with ammonium ion, the Cu 3d orbital peak is closer to the Fermi level and characterized by a stronger peak value. Therefore, the addition of ammonium ions activated the sulfidation of malachite (â201), thereby improving the flotation performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 410, 15 July 2017, Pages 126-133
Journal: Applied Surface Science - Volume 410, 15 July 2017, Pages 126-133
نویسندگان
Dandan Wu, Yingbo Mao, Jiushuai Deng, Shuming Wen,