اخبار و اعلانات

 آمار

تعداد نشریات418
تعداد شماره‌ها10,005
تعداد مقالات83,622
تعداد مشاهده مقاله78,352,875
تعداد دریافت فایل اصل مقاله55,393,836
Pouretedal, HR, Saedi, E.. (1393). Dechlorination of 2,4-dichlorophenol by zero-valent iron nanoparticles impregnated MCM-48. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5(3), 77-83. doi: https://doi.org/10.1007/s40090-014-0021-9
HR Pouretedal; E. Saedi. "Dechlorination of 2,4-dichlorophenol by zero-valent iron nanoparticles impregnated MCM-48". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5, 3, 1393, 77-83. doi: https://doi.org/10.1007/s40090-014-0021-9
Pouretedal, HR, Saedi, E.. (1393). 'Dechlorination of 2,4-dichlorophenol by zero-valent iron nanoparticles impregnated MCM-48', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5(3), pp. 77-83. doi: https://doi.org/10.1007/s40090-014-0021-9
Pouretedal, HR, Saedi, E.. Dechlorination of 2,4-dichlorophenol by zero-valent iron nanoparticles impregnated MCM-48. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1393; 5(3): 77-83. doi: https://doi.org/10.1007/s40090-014-0021-9

Dechlorination of 2,4-dichlorophenol by zero-valent iron nanoparticles impregnated MCM-48

International Journal of Industrial Chemistry
دوره 5، شماره 3، اسفند 2014، صفحه 77-83
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-014-0021-9
نویسندگان
HR Pouretedal* 1؛ E. Saedi2
1Faculty of Applied Chemistry, Malek-ashtar University of Technology, Shahin-Shahr, 1387763681, Iran
2Department of Chemistry, Islamic Azad University, Shahreza Branch, Shahreza, Iran
چکیده
The zero-valent iron (ZVI) impregnated MCM-48 (Fe-MCM-48) as a new reagent was used to dechloronation of 2,4-dichlorophenol (2,4-DCP) pollutant. The Fe-MCM-48 was prepared by a grinding method as a solvent-free procedure. The X-ray diffraction patterns, SEM images and EDX spectra were applied to characterize the Fe-MCM-48 regent. The impregnation of ZVI nanoparticles occurred in the channels of mesoprous MCM-48. The zero-valent iron amount was 23 ± 2 % in Fe-MCM-48 that was confirmed by EDX analysis. The dechloronation of 2,4-dichlorophenol (>95 %) was optimized at pH 4 and 150 mg/L of Fe-MCM-48. The dechloronation reaction showed the pseudo first-order kinetic based on the initial concentration of 2,4-DCP in range of 100–400 mg/L. The increasing of available sites of Fe-MCM-48 versus dispersed zero-valent iron particles showed an advantage for new reagent in dechloronation reaction. The reusability of proposed reagent showed an efficiency of 95–55 % for a four-cycle of dechloronation reaction.
کلیدواژه‌ها
Zero-valent iron؛ MCM-48؛ 2؛ 4-Dichlorophenol؛ Dechloronation؛ Impregnation
آمار
تعداد مشاهده مقاله: 14


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب