Synthesis of Ethylene diamine-modified Ordered Mesoporous Carbon as a NewNanoporous Adsorbent for Removal of Cu(II) and Pb(II) Ions from Aqueous Media
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 27، شماره: 9
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 504
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شناسه ملی سند علمی:
JR_IJE-27-9_011
تاریخ نمایه سازی: 12 آبان 1393
چکیده مقاله:
The mesoporous carbon (CMK-3) functionalized with ethylenediamine (EDA) has been propered (CMK-3-EDA) and used as a new mesoporous adsorbent for removal of Cu(II) and Pb(II) cations from aqueoussolutions. Nitrogen adsorption–desorption measurements (BET) show that surface area, pore size and porevolume of CMK-3 have significantly changed after amine modification. The BET surface area and porediameter of functionalized product were 344.74 m2 .g−1 and 28.61Å, respectively. The adsorptionconditions including contact time, pH value and adsorbent dosage of the sample solution have beenstudied in batch system and then determined by means of flam atomic absorption spectrometry. Theadsorption capacity was 188.2 mg. g−1 and 196.64 mg. g−1 for Cu(II) and Pb(II) ions, respectively. Theobtained high adsorption capacity of CMK-3 functionalized with EDA is due to the amine functionalgroups formed on the surface of CMK-3 which can react with Pb(II) and Cu(II) ions. Results show that thenew synthesized porous material is a highly effective for sorption of Pb(II) and Cu(II) ions in comparisonto other adsorbents
کلیدواژه ها:
Mesoporous CarbonCMK-3-EDAAdsorption CapacityBatch System
نویسندگان
M Anbia
Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Narmak, Tehran, Iran
A.H Davijani
Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Narmak, Tehran, Iran