Yıl 2012, Cilt 13 , Sayı 1, Sayfalar 31 - 49 2012-03-12

ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES
MANYETİK-POLİ (DİVİNİLBENZEN-KO-VİNİLİMİDAZOL) MİKROKÜRELER İLE SULU ÇÖZELTİLERDEN Ni(II) İYONLARININ ADSORPSİYONU: FİZİKOKİMYASAL ÇALIŞMALARI

Ali KARA [1] , Emel DEMİRBEL [2]


A modified suspension polymerization was used for the preparation of the mesoporous magnetic-poly(divinylbenzene-co-vinylimidazole) (m-poly(DVB-VIM)) microbeads in size 53-212 μm of average diameter. The specific surface area and the DVB/VIM mol ratio of the microspheres were determined as 29.47 m2/g and 1:4 mol/mol with Fe3O4, respectively. The physicochemical studies of adsorption of Ni(II) ions from aqueous solutions such as pH, initial concentration, amount of mesoporous m-poly(DVB-VIM) microbeads, contact time, and temperature onto the m-poly(DVBVIM) microspheres were carried out. The maximum adsorption capacities of the m-poly(DVB-VIM) microspheres towards Ni(II) ions were determined as 13.51, 20.14, 21.00 and 23.62 mg/g at 277 K, 298 K, 318 K, and 338 K, respectively. The dynamic and equilibrium adsorption behaviours of the system were adequately described by the pseudo-second-order kinetic and the Langmuir isotherm models, respectively. Various thermodynamic parameters, such as the Gibbs' free energy change ( Δ Go), the standard enthalpy change (Δ Ho) and the standard entropy change (Δ So) were also determined. Morever, after use in the adsorption, the m-poly(DVB-VIM) microbeads with paramagnetic property was separated from the via the applied magnetic force. These results indicate that the material studied could be used as a purifier for the removal of Ni(II) ions from water and wastewater under magnetic field.

 

 

Ortalama çapı 53-212 μm olan mezogözenekli manyetik-poli(divinilbenzen-ko-vinilimidazol) (mpoli(DVB-VIM)) mikrokürelerinin hazırlanması için modifiye süspansiyon polimerizasyonu kullanıldı. Mikrokürelerin spesifik yüzey alanı 29.47 m2g-1 ve Fe3O4 ilavesiyle birlikte, DVB/VIM mol oranı 4:1 mol/mol olarak belirlendi. Fizikokimyasal çalışmalar m-poli (DVB-VIM) mikroküreleri üzerine pH, başlangıç konsantrasyonu, mikroküre miktarı, temas süresi ve sıcaklık gibi parametrelerle incelendi. m-poli(DVB-VIM) mikrokürelerinin Ni(II) iyonlarına karşı maksimum adsorpsiyon kapasitesi 277 K, 298 K, 318 K ve 338 K’de sırasıyla 13.51, 20.14, 21.00 ve 23.62 mg.g-1 olarak belirlendi. Sistemin dinamik ve denge adsorpsiyon davranışları sırasıyla yalancı ikinci derece model ve Langmuir izoterm modeliyle açıklandı. Gibbs serbest enerji değişimi (ΔG0), standart entalpi değişimi (ΔH0) ve standart entropi değişimi (ΔS0) gibi termodinamik parametreler belirlendi. Ayrıca adsorpsiyonda kullanımdan sonra, paramanyetik özellikli m-poli (DVB-VIM) mikroküreleri uygulanan manyetik kuvvet yardımıyla ayrıldı. Bu sonuçlar, çalışılan malzemenin manyetik alan altında su ve atık sulardan Ni(II) iyonlarının uzaklaştırılması için kullanılabilir olduğunu gösterdi.
Manyetik polimerler, Adsorpsiyon izotermi, Adsorpsiyon kinetiği, Adsorpsiyon termodinamiği, Ni (II) iyonları
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Birincil Dil en
Bölüm Araştırma Makalesi
Yazarlar

Yazar: Ali KARA

Yazar: Emel DEMİRBEL

Tarihler

Yayımlanma Tarihi : 12 Mart 2012

Bibtex @ { aubtda42149, journal = {Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering}, issn = {1302-3160}, eissn = {2146-0205}, address = {}, publisher = {Eskişehir Teknik Üniversitesi}, year = {2012}, volume = {13}, pages = {31 - 49}, doi = {}, title = {ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES}, key = {cite}, author = {Kara, Ali and Demi̇rbel, Emel} }
APA Kara, A , Demi̇rbel, E . (2012). ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES . Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering , 13 (1) , 31-49 . Retrieved from https://dergipark.org.tr/tr/pub/aubtda/issue/3035/42149
MLA Kara, A , Demi̇rbel, E . "ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES" . Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13 (2012 ): 31-49 <https://dergipark.org.tr/tr/pub/aubtda/issue/3035/42149>
Chicago Kara, A , Demi̇rbel, E . "ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES". Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13 (2012 ): 31-49
RIS TY - JOUR T1 - ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES AU - Ali Kara , Emel Demi̇rbel Y1 - 2012 PY - 2012 N1 - DO - T2 - Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering JF - Journal JO - JOR SP - 31 EP - 49 VL - 13 IS - 1 SN - 1302-3160-2146-0205 M3 - UR - Y2 - 2021 ER -
EndNote %0 Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES %A Ali Kara , Emel Demi̇rbel %T ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES %D 2012 %J Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering %P 1302-3160-2146-0205 %V 13 %N 1 %R %U
ISNAD Kara, Ali , Demi̇rbel, Emel . "ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES". Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13 / 1 (Mart 2012): 31-49 .
AMA Kara A , Demi̇rbel E . ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES. AUBTD-A. 2012; 13(1): 31-49.
Vancouver Kara A , Demi̇rbel E . ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering. 2012; 13(1): 31-49.
IEEE A. Kara ve E. Demi̇rbel , "ADSORPTION OF Ni(II) IONS FROM AQUEOUS SOLUTIONS ONTO MAGNETIC POLY( DIVINYLBENZENE-CO-VINYLIMIDAZOLE) MICROBEADS: PHYSICOCHEMICAL STUDIES", Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering, c. 13, sayı. 1, ss. 31-49, Mar. 2012