Removal of Phenol from Aqueous Solution by a Low-Cost Nano Composite

Yıl 2018, Cilt: 33 Sayı: 3, 101 - 112, 30.09.2018

Fatma Elçin Erkurt Behzat Balcı

https://doi.org/10.21605/cukurovaummfd.500592

Cited By: 2

Öz

In the present study, Eucalyptus camaldulensis bark/maghemite composite (ECMC) was used as a lowcost adsorbent for the removal of phenol from aqueous solution. The structural characterization, morphology and elemental analysis of ECMC were performed by scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and X-ray diffraction (XRD). The effects of various independent parameters such as contact time, initial phenol concentration, temperature, pH on adsorption process were investigated. It was found that the adsorption capacity of ECMC increases with the increasing of phenol concentration. The optimum pH was found to be 5 for the removal of phenol by ECMC. The adsorption capacity for 500 mg/L phenol was found to be 90.92 mg/g with 1 g ECMC at pH 5 and 20 ⁰C. Langmuir isotherm model described perfectly the adsorption process with 0.998 correlation coefficient. 

Anahtar Kelimeler

Eucalyptus camaldulensis, Adsorption, Phenol, Maghemite

Fenolün Sulu Çözeltiden Düşük Maliyetli bir Nano Kompozit ile Giderimi

Öz

Bu çalışmada, Eucalyptus camaldulensis kabuğu/maghemit (ECMC) kompoziti sulu çözeltiden fenol gideriminde düşük maliyetli bir adsorbent olarak kullanılmıştır. ECMC’nin yapısal karakterizasyonu, morfolojisi ve elementel analizleri taramalı elektron mikroskopisi (SEM), enerji dağılımlı X-ışını (EDX) ve X-ışını kırınımı difraktometresi (XRD) ile gerçekleştirilmiştir. Adsorpsiyon süreci üzerine temas zamanı, pH, sıcaklık ve başlangıç fenol konsantrasyonu gibi çeşitli parametrelerin etkisi araştırılmıştır. Yapılan çalışmalar ECMC’nin adsorpsiyon kapasitesinin fenol konsantrasyonunun artmasıyla arttığını göstermiştir. ECMC tarafından fenol gideriminde optimum pH’ın 5 olduğu bulunmuştur. 500 mg/L fenol için adsorpsiyon kapasitesi; 1 gram ECMC dozu ile pH 5’de ve 20 °C’de 90,92 mg/g olarak bulunmuştur. Langmuir izotermi adsorpsiyon sürecini 0,998 korelasyon katsayısı ile mükemmel bir şekilde tanımlamıştır.

Anahtar Kelimeler

Eucalyptus camaldulensis, Adsorpsiyon, Fenol, Maghemit

Kaynakça

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