کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7067323 | 1459884 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel modification of lignin on corncob-based biochar to enhance removal of cadmium from water
ترجمه فارسی عنوان
یک اصلاح جدید از لیگنین بر زیست تخریب زیتون مبتنی بر ذرت برای افزایش کادمیوم از آب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In order to improve the adsorption capacities of corncob-based biochars for heavy metal, the different pyrolysis temperature (350â¯Â°C, 450â¯Â°C and 550â¯Â°C) of corncob-based biochars were modified with the acrylonitrile, and adsorption capacities of Cadmium from solution by biochars were studied. The results showed that only at 350â¯Â°C the biochar can be successfully modified. The Cd adsorption capacity (85.65â¯mg/g) by the biosorbent was higher than other methods of modifying biochars previously reported. SEM-EDS and FTIR confirmed that the CN group was grafted on the biochar at low pyrolysis temperature. Batch adsorption experiment including pH-dependence, adsorption kinetics, and isotherms and XPS results showed that the removal mechanism of Cd(II) by the modified biochar was ion exchange and adsorption-complexation. This research not only obtained a novel method to modify biochar but also furthered research into the lignin of biochar composition, and provided an efficient sorbent for heavy metal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 259, July 2018, Pages 312-318
Journal: Bioresource Technology - Volume 259, July 2018, Pages 312-318
نویسندگان
Mingke Luo, Hai Lin, Bing Li, Yingbo Dong, Yinhai He, Liang Wang,