کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
578586 | 1453129 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of phenolic compounds from aqueous solution using salicylic acid type adsorbent
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, 5-aminosalicylic acid (5-ASA) was successfully grafted onto the poly(glycidyl methacrylate) (PGMA) macromolecular chains of PGMA/SiO2 to obtain adsorbent ASA-PGMA/SiO2. The adsorption properties of ASA-PGMA/SiO2 for phenolic compounds were studied through batch and column methods. The experimental results showed that ASA-PGMA/SiO2 possesses strong adsorption ability for phenolic compounds, and its adsorption capacity for phenol, 4-chlorophenol, and p-nitrophenol reaches 1.0, 1.1, and 1.32 mmol gâ1, respectively. In addition, pH has a great influence on the adsorption capacity. The adsorption isotherm data obeyed the Langmuir model well than Freundlich model. The desorption of phenolic compounds from the ASA-PGMA/SiO2 adsorbent was most effectively achieved in a 0.1 mol Lâ1 sodium hydroxide solution. Consecutive adsorption-desorption experiments showed that the ASA-PGMA/SiO2 adsorbent could be reused almost without any loss in the adsorption capacity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volumes 201â202, 30 January 2012, Pages 74-81
Journal: Journal of Hazardous Materials - Volumes 201â202, 30 January 2012, Pages 74-81
نویسندگان
Fuqiang An, Ruikui Du, Xiaohua Wang, Min Wan, Xin Dai, Jianfeng Gao,