Polidopamin nano kaplama yöntemi ile modifiye edilmiş monolitik kriyojellerin adsorban özelliklerinin incelenmesi
Yükleniyor...
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Niğde Ömer Halisdemir Üniversitesi / Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Sunulan bu çalışmada; polidopamin (PDA) nano kaplama yönteminin, monolitik kriyojellerin yüzey modifikasyonunda kullanılabilirliği ilk defa incelenmiştir. Çalışmada, poli(2-hidroksietil metakrilat), PHEMA, esaslı monolitik kriyojel diskleri, sulu ortamda gerçekleştirilen basit bir yüzey modifikasyon işlemine tabi tutulmuş ve elde edilen malzemenin (PHEMA-PDA) adsorban özellikleri incelenmiştir. Hazırlanan diskler FTIR spektroskopisi, pH pzc ölçümleri ve su tutma kapasitesi gibi tekniklerle karakterize edilmiştir. Elde edilen bu yeni materyalin kristal viyole (CV) ve nikel(II) türlerine karşı sergilediği adsorban özellikleri kesikli yöntemle elde edilen adsorpsiyon verileri temelinde incelenmiştir. Denge adsorpsiyon verileri, Langmuir, Freundlich ve Temkin izoterm modelleri ile analiz edilmiştir.
In the present study, applicability of the "polydopamine (PDA)-dip coating" process in surface-modification of monolithic cryogels was studied for the first time. In the study, the monolithic cryogel disks of poly(2-hydroxyethyl methacrylate), PHEMA, were subjected to a facile surface modification process performed in aqueous media and the adsorbent properties of the obtained material, PHEMA-PDA, were investigated. The prepared disks were characterized by various techniques like FTIR spectroscopy, pHpzc measurements, and water-holding capacity. The adsorbent properties of this newly-obtained material toward crystal violet (CV) and nickel(II) were studied on the basis of adsorption data derived from a batch method. Equilibrium adsorption data were analyzed with respect to the Langmuir, the Freundlich, and the Temkin isotherm models.
In the present study, applicability of the "polydopamine (PDA)-dip coating" process in surface-modification of monolithic cryogels was studied for the first time. In the study, the monolithic cryogel disks of poly(2-hydroxyethyl methacrylate), PHEMA, were subjected to a facile surface modification process performed in aqueous media and the adsorbent properties of the obtained material, PHEMA-PDA, were investigated. The prepared disks were characterized by various techniques like FTIR spectroscopy, pHpzc measurements, and water-holding capacity. The adsorbent properties of this newly-obtained material toward crystal violet (CV) and nickel(II) were studied on the basis of adsorption data derived from a batch method. Equilibrium adsorption data were analyzed with respect to the Langmuir, the Freundlich, and the Temkin isotherm models.
Açıklama
Anahtar Kelimeler
Adsorpsiyon, Kriyojel, Boya, Ağır metal, Polidopamin, Adsorption, Cryogel, Dye, Heavy metal, Polydopamine
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Özbek, G. (2019). Polidopamin nano kaplama yöntemi ile modifiye edilmiş monolitik kriyojellerin adsorban özelliklerinin incelenmesi. (Yüksek Lisans Tezi) Niğde Ömer Halisdemir Üniversitesi, Fen Bilimleri Enstitüsü, Niğde
