Doğal biyosorbent olarak Onopordum turcicum Danin tarafından sulu çözeltiden toksik bir bazik boya-malakit yeşili uzaklaştırılması

Bu çalışmada doğal kaynaklı olan Onopordum turcicum Danin bitkisi adsorban olarak kullanarak, Malakit yeşil MG boyasının solu ortamdan uzaklaştırılması çalışılmıştır. Bitkinin potansiyel MG boya uzaklaştırma özelliklerini araştırmak amacıyla, pH, adsorban miktarı, temas süresi ve başlangıç MG konsantrasyonu gibi değişik parametrelere göre değerlendirilmiştir. MG boyasının O. turcicum biyokütle tarafından adsorlanan en etkin pH’sı 8.0 olarak tespit edildi. Adsorpsiyon izotermi ise Langmuir ve Freundlich adsopsiyon modeli kullanılarak analiz edildi. Langmuir izotermine göre adsopsiyon kapasitesi 1110.1 mg/g olarak bulundu. Elde edilen sonuçlara göre, O. turcicum bitkisinin MG boyasının sulu çözeltiden uzaklaştırabilme özelliğine sahip olduğu görülmektedir

Anahtar Kelimeler:

Onopordum turcicum, boya uzaklaştırma, biyosorpsiyon

Removal of a toxic basic dye-malachite green from aqueous solution by Onopordum turcicum Danin as natural biosorbent

Biosorption of malachite green MG was studies using natural origin adsorbent Onopordum turcicum Danin. Batch adsorption studies were carried out to evaluate the potentiality of O. turcicum for the removal of malachite green dye from wastewater, on different parameters such as pH, adsorbent dose, contact time and initial MG concentration. The effective pH was 8.0 for adsorption of MG by the biomass. The equilibrium isotherm was analyzed with the Langmuir and Freundlich models of adsorption. The biosorption data of MG on Onopordum turcicum Danin was fitted with Langmuir model with a maximum adsorption capacity was 1110.1 mg/g. The acquired results show that O. turcicum was effective in removal of MG dye from aqueous solution

Keywords:

Onopordum turcicum, dye removal, biosorption,

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