Yeni Bir Kompozit Malzeme Kullanılarak Sulu Ortamdaki Katyonik Boya Giderimi

Yıl 2018, Cilt: 39 Sayı: 1, 181 - 191, 16.03.2018

Zeynep Mine Hasdemir Selçuk Şimşek

https://doi.org/10.17776/csj.356915

Cited By: 6

Öz

Bu çalışmada, Poliakrilamid (PAA) ve diatomit
(D) içeren yeni bir kompozit materyal sentezlendi ve bir katyonik boya olan
metilen mavisinin (MB) sulu ortamdaki gideriminde kullanıldı. Elde edilen yeni
kompozit, pliakrilamid-diatomit (PAA-D) sıfır yük noktası (SYN), FTIR
analizleriyle karakterize edildi. Yeni kompozit materyalin adsorpsiyon
özellikleri kapsamlı olarak ve deneysel değişkenler derişim, pH, sıcaklık,
zaman ve iyonik şiddet gibi optimize edilerek araştırılmıştır. Deneysel veriler
teorik adsorpsiyon modelleri kullanılarak hesaplandı. Kompozit materyalin
adsorpsiyon kapasitesi Langmiur eşitliğinden 0.019 mol kg⁻¹ olarak
hesaplandı. Freundlich ve DR modellerinden hesaplanan sabitler 0.075 ve 0.034
olarak bulundu. Adsorpsiyon kinetiği yalanci ikinci derece kinetik ve parçacık
içi difüzyon modelleriyle de açıklandı. Deneysel çalışmalar adsorpsiyonun
endotermik olduğunu ve kendiliğinden meydana geldiğini gösterdi. Yeni
geliştirilen materyal çeşitli ortamlardan atık sular gibi, metilen mavisi
katyonik boyasını gidermek için potansiyel bir adsorban olarak kullanılabilir.

Anahtar Kelimeler

Metilen mavisi, adsorpsiyon, poliakrilamid, diyatomit, kompozit

Removal of Cationic Dye in Aquatic Medium by Using a New Composite Material

Öz

In this study, a new composite material containing polyacrylamide (PAA) and diatomite
(D) was developed and characterized for effective removal of Methylene Blue
(MB) dye in aquatic medium. The obtained new composite material, polyacrylamide-diatomite (PAA-D) was characterized by
point zero charge (PZC), FTIR analysis. The adsorption properties of new composite
material were investigated comprehensively and experimental variables were
optimized such as concentration, pH, temperature, time and ionic strength.
Experimental data were evaluated by using theoretical adsorption models. The
maximum adsorption capacity of material was calculated as 0.019 mol kg⁻¹
by considering Langmuir equation. The constants calculated from Freundlich and
DR model were found as 0.075 and 0.034, respectively. Adsorption kinetic was
also explained with pseudo second order and intra particular diffusion models.
Experimental studies were showed that adsorption was endothermic and occurred
spontaneously. New developed material can be used as potential adsorbent in
order to removal of methylene blue from various medium such as wastewater.

Anahtar Kelimeler

Methylene blue, adsorption, polyacrylamide, diatomite, composite

Kaynakça

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