C 14 /Fe 3 O 2 :

... C14/Fe3O4@SiO2 C 14 /Fe 3 O 4 @SiO 2 - - Mehdi_farzadkia@yahoo.com () ( ) - - - - (// // ).. C 14 /Fe 3 O 4 @SiO 2 SEM. Fe 3 O 4 @SiO 2... FTIR FTIR SEM.. Fe 3 O 4 @SiO 2.. / C 14 /SiO 2 _Fe 3 O 4. C 14 /Fe 3 O 4 @SiO 2 :.[].[ ].[] 1 United States Environmental Protection Agency (USEPA) -.[]..[].. 36

... C14/Fe3O4@SiO2 - -- / ph... HNO 3 FTIR S4160. ICP. C 14 /SiO 2 _Fe 3 O 4 -- Fe 3 O 4 /.[]. : TEOS. Fe 3 O 4 @SiO 2. Fe 3 O 4 @SiO 2. ].[.... Fe 3 O 4 @SiO 2...[].[] [].[ ].[] --.[ ] N CS NH CO Ph.[] C 7 H 7 ON.[]. 6 Merck 7 Scanning Electron Microscopy (SEM) 8 Hitachi 9 Fourier Transform Infrared (FTIR) 10 Bruker Vector 22 11 Cintra 6 12 Perkinelmer Optima7300Dr 1 Coupling Agent 2 Vinyltriethoxysilane 3 Chlorodimethyl-n-Octadecylsilane 4 Aminopropyl Trimethoxysilane 5 Triethoxyoctylsilane 37

... C14/Fe3O4@SiO2 -- NaCl ph. / / /. -- Fe 3 O 4 @SiO 2. /.. -- ph ph.. /. /.. ICP - -- SEM FTIR. SEM.. -- Fe 3 O 4 @SiO 2.. ph ph ph ph [ ]. III.[ ].. sorption % = (C 0 -C e ) / C 0 *100 (). C e C 0 -- ph.. / /. --. / ph /. 38

... C14/Fe3O4@SiO2 () () () (cm -1 ) Fe 3 O 4 @SiO 2 FTIR - -. ].[ / pvalue C 14 /SiO 2 _Fe 3 O 4... C 14 H 32 O 3 Si Fe 3 O 4 @SiO 2 SEM - -. -. ( ) FTIR. ( )..[]..[] Fe_O_Fe --. C 14 /SiO 2 @Fe 3 O 4 39

... C14/Fe3O4@SiO2 --. / /. / pvalue.[] 6 7/02 10. ph=) - / ( / (). -- / /...[].[]...[].[] pvalue. 3/2 10 19. ph=) - ( / ph=) - ( / / 40

... C14/Fe3O4@SiO2. -- C 14 /SiO 2 _Fe 3 O 4. /... / / /.. α FeOOH.[] ph /.[]. CMK-5.[].[] NaCl / C 14 /SiO 2 _Fe 3 O 4. --... C 14 /SiO 2 _Fe 3 O 4. ph=) - / ( / 41

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