کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7842842 | 1506516 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel hybrid of β-cyclodextrin grafted onto activated carbon for rapid adsorption of naphthalene from aqueous solution
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کلمات کلیدی
DMFTGAβ-Cyclodextrinβ-CDHMDIhexamethylene diisocyanateBrunauer–Emmett–Teller - Brunauer-Emmett-TellerThermogravimetric analysis - تجزیه و تحلیل ترموگرافیRapid removal - حذف سریعBET - شرطFTIR - طیف سنج مادون قرمزFourier transform infrared spectroscopy - طیف سنجی مادون قرمز تبدیل فوریه یا طیف سنجی FTIRHybrid material - مواد هیبریدیActivated carbon - کربن فعال
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel hybrid material was prepared by grafting β-cyclodextrin (β-CD) onto the surface of oxidized AC for the rapid adsorption of naphthalene. AC and CDACs were characterized using the N2 adsorption-desorption method, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and solid state CP MAS 13C NMR. All the results demonstrate that β-CD grafted successfully onto AC. Batch experimental adsorption datas had a higher correlation to Freundlich isotherm model and the pseudo-second-order model. The adsorption equilibrium capacity of 178.73 mg·gâ1 was reached in just 10 s at an AC/β-CD grafting ratio value of 1:1. It had a faster adsorption rate than many reported adsorbents. Additionally, the positive free energy change (âG°), and the positive enthalpy change (âH°) suggest that it is a viable, spontaneous and endothermic process, which will provided a new path to a highly-efficient and fast-adsorption-rate adsorbent for naphthalene or its analogues discharged into the environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 255, 1 April 2018, Pages 160-167
Journal: Journal of Molecular Liquids - Volume 255, 1 April 2018, Pages 160-167
نویسندگان
Xiufang He, Zhansheng Wu, Zhonghai Sun, Xinhui Wei, Zhilin Wu, Xinyu Ge, Giancarlo Cravotto,