77

MnO2 Nanoparticles/Zeolite AgY

**

28/3/91تاريخ پذيرش:12/11/90:دريافتتاريخ : دهيچك

NaYNaNaY

AgNO3AgAgY Ag

AgY AgMn(NO3)2MnKMnO4KM(CSS)

SEM/EDAXXRDXFTIR

)CEES(()CEPS(

15.8 wt% Nano MnO2/Zeolite AgY(GC)

31PNMR(GC-MS)

nano-MnO2/Zeolite AgYna

)CEES(()CEPS(،،)DMMP(

]][[

DS2iiDSHDO2-

]][[

**meysamsadeghi45@yahoo.comi Demetonii Decontaminated solution 2

78

]][[

M2/nO.Al2O3.ySiO2.wH2OMnny y w

-

-YY]][[

-

]][[

AgY

vv

iv Aluminosilicateiv Faujasitev Confined space synthesis(CSS)

د)ج)ب)الف)

79

:هاو دستگاهييايميمواد ش

Mn(NO3)2.6H2OMnARARLoba ChimieLo

Alfa AesarAl

SEM/EDAXSE7353)(LEO 1455

XRDXRSheifert 3003 TT ShX-ray X

Cu kαFTIR FTIRIRSpectrum 100Sp

Perkin ElmerGC GC

Varian Star 3400 CXVaFIDFIOV-101 CW HP 80/100 2m×1.8 in

oCoCoCoCoCominmioCoC

oCo

)CEES(()CEPS((viviGC-MSGCVarian Star 3400

CXDB 5 MS, 101 mic, 30 m× 0.25 mm

ml/minmlNMRNM250 MHz) (Bruker

CAT.NO.1004 CAUniversal

:دروترماليبه روش هNaYت يسنتز زئول

NaYNaNa

vi Demeton

80

pHpH

]][[

ي:ونيبه روش تبادل AgYيات نقرهيه زئوليته

NaYNa

AgNO3Ag

AgYAg

AgY

]].[

: nano-MnO2/Zeolite AgYت يسنتز كامپوز

AgYMn(NO3)2.6H2O

KMnO4KM

]][[

-nanoتيكامپوزلهيد و دمتون به وسيل سولفيل فنيد، كلرو اتيل سولفيل اتيواكنش دسولفوره و حذف كلرو ات

MnO2/Zeolite AgY توسطGC وGC-MS:

GCGC-MS

81

با استفاده از nano-MnO2/Zeolite AgYتيله كامپوزيل فسفونات به وسيل متيمتيذب دواكنش حذف و ج

:1PNMRك يتكن

g/mlg/

rpmrpnano-MnO2/Zeolite AgY

rpmrp

31PNMRNMR

Ag+

))NaY(Si/Al = Na))NaX(Si/Al =

-

AgYAg

82

:FTIRو SEM ،EDAX،XRDله يوسبات سنتز شده بهيتركيو ساختارياخواص ذره،يمورفولوژيبررس

(SEM)

SEM

AgYAgAgYAg

NaY

nano-MnO2/Zeolite AgYEDAXED

(a) (b) (c)

(d) (e) (f)

(g) (h)

SEM(a AgY(1) (b , NaYAgY(2) (c ,(d 9.3 wt% MnO2/ AgY(2)MnO2/ AgY(2) (e 15.8 wt%N Ps (i, h MnO2

83

EDAX(a MnO2/ AgY(2) (b NaY 15.8 wt%

:(XRD)كس يپراش اشعه ايالگو

XRD

NaYNaAgYAgAg

NaYAgYAg

AgYnano-MnO2/Zeolite AgY na

MnO2 AgY

λλXX

θβFWHM

XRD(a AgY(1) (b , NaY

a) b)

(a) (b)

84

(c) (d)

(e) (f)

.AgY(2) (c(d9.3 wt -MnO2/ AgY(2)MnO2/ AgY(2) (e 15.8 wt%f NPs ( MnO2

:(FTIR)ه يل فوريمادون قرمز تبد

FTIRNaYNaAgYAgnano-MnO2/Zeolite AgYna

H2OHcm-1cm

cm-1cmO-H cm-1cmO-H-HH

cm-1cmT-O)T=Si, Al(

cm-1cmT-OTcm-1cm

T-Onano-MnO2/Zeolite AgY

cm-1cmO-H O-H-Hcm-1cm

Mn-O

IRIR(a AgY(1) (b , NaYAgY(2) (c ,(d 9.3 wt% MnO2/Zeolite AgY(2)15.8 wt%MnO2/Zeolite AgY(2) (e

85

د يل سولفيل فنيد و كلرو اتيل سولفيل اتيكلرو اتي تركيبات سولفورهب)ي(جذب و تخرزان دسولفورهيميبررس

:GC-MSو GCيهابا روشnano-MnO2/Zeolite AgYت يله كامپوزيبه وس

nano-MnO2/Zeolite AgYna˚C˚C±±

)GC((

GC GCCEESCEnano-MnO2/Zeolite AgYna

abcde

86

ab

c

d

GC GCnano-MnO2/Zeolite AgY na

(GC-MS)(

2-CEES2(EVS)

(HEES)

))(m/z=(m))(m/z =(m))(m/z=

الف) ب)

ب)الف)

87

m/zm/

m/zm/

و GCيهابا روشnano-MnO2/Zeolite AgYت يله كامپوزيوسب دمتون بهيتخرزان جذب و يميريگاندازه

GC-MS:

-

GC-MSGC

)methyl ethane sulfenate(

––––

O-ethyl-O-merhyle Vinyl Phosphorothioate

ب)الف)

88

GC GCDemetonDenano-MnO2/Zeolite AgY na

هاي مختلفو در زمانها در حلالهاي استخراج شده از كروماتوگرام. داده3جدول% جذب/تخريب

ab

c

d

methyl ethane sulfenateme(o –ethyl o – methyl s –vinyl phosphorothiate)(o

ب)الف)

89

:PNMR31ل فسفونات با استفاده از روش يمتليمتيزان جذب و حذف ديميبررس

nano-MnO2/Zeolite AgY

(DMMP)(DPNMR3131..

δ = 0 ppmδ δ = 33ppmδ

DMMP

DMMPDM

31PNMRDMMPDM

PNMR3131DMMPDMnano-MnO2/Zeolite AgYna

90

PNMR3131DMMPDMnano-MnO2/Zeolite AgYna

NaYNa

wt% MnO2wt

nano-MnO2/Zeolite AgY wt%wt

nano-MnO2/Zeolite AgY wt%wt

91

The Desulfurization and Removal of Sulfurous and Organo-phosphurous

Compounds via Using MnO2 Nanoparticles/Zeolite AgY Composite

Catalyst

Meysam Sadeghi**, Mohammad Reza Shahdadi, Hussein Toolabi and Mir Hassan Husseini

Department of chemistry, Faculty of Basic Sciences, Imam Hussein Comprehensive University, Tehran, Iran

Received: 31 January 2012 Accepted: 17June 2012

AbstractIn this research, zeolite NaY molecular sieve was prepared by a hydrothermal method. Then, silver

ions were replaced in the zeolite NaY with silver nitrate (AgNO3) solution via using ion exchange (IE) method

for the preparation of zeolite AgY. In the next step, the Manganese dioxide (MnO2) nanoparticles (9.3 and 15.8

wt %) as guest were deposited in the zeolite AgY (as host) structure with Mn(NO3)2 aqueous and KMnO4

solutions via confined space synthesis (CSS) method. Synthesized samples were studied and characterized via

SEM/EDAX, XRD and FTIR techniques. The desulfurization and removal reactions of sulfurous compounds of

chloroethyl ethyl sulfide (CEES), chloroethyl phenyl sulfide (CEPS) and organo-phosphurous compounds of

demeton and dimethyl methyl phosphonate (DMMP) have been investigated by 15.8 wt% Nano MnO2/Zeolite

AgY composite via the influences of various parameters such as solvent and time by using gas chromatography

(GC) and 31PNMR. Then, products of the elimination and destruction reactions were identificated via gas

chromatography-mass spectrometry (GC-MS). These products have less toxic to compare sulfurous and organo-

phosphurous compounds under reaction.

Keywords: Nano MnO2/Zeolite AgY, Chloroethyl ethyl sulfide, Chloroethyl phenyl sulfide, Demeton, Dimethyl methyl phosphonate, Desulfurization.

*. Corresponding author: Department of chemistry, Faculty of Basic Sciences, Imam Hussein Comprehensive University,E-mail address: meysamsadeghi45@yahoo.com

92

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