Tarımsal bir Atık Tarafından Malaşit Yeşilinin Adsorpsiyonu: Pirinç Kavuzu

Bu çalışmanın temel amacı, tarımsal bir atık olarak pirinç kavuzu üzerine katyonik bir boya olarak malaşit yeşilinin adsorpsiyonunun araştırılmasıdır. Başlangıç boya konsantrasyonu, pH ve zamanın etkisi araştırılmıştır. Adsorpsiyondan elde edilen verilerle Langmuir, Freundlich izoterm modelleri ve kinetikler hesaplanmıştır. Langmuir izotermi (Qmax=8.688 mg/g) Freundlich izoterminden daha iyi uyum sağlamıştır. Pirinç kavuzunun karakterizasyonu taramalı elektron mikroskopu (SEM) ile tespit edilmiştir. Yalancı ikinci derece kinetic model malaşit yeşilinin gideriminde uyum sağlamıştır. Sonuç olarak pirinç kavuzu katonik boyaların adsorpsiyonunda etkili ve maliyetsiz bir adsorban olarak kullanılabilmiştir.

Anahtar Kelimeler:

Adsorpsiyon, malaşit yeşili, izoterm, kinetic, SEM

Adsorption of Malachite Green by An Agricultural Waste: Rice Husk

The main objective of this research was to investigate the adsorption of malachite green as a cationic dye on rice husk as an agricultural waste. Effect of initial dye concentration, pH and time was evaluated. The adsorption data were calculated Langmuir, Freundlich isotherm model and kinetics. Langmuir isotherm (Qmax=8.688 mg/g) is more fitted than Freundlich isotherm. Scanning electron microscope (SEM) results described that characterization of rice husk. Pseudo second order kinetic model fitted well for removal of malachite green. Thus, rice husk was using no-cost and effective adsorbent for adsorption of cationic dyes.

Keywords:

Adsorption, , malachite green, isotherm, , kinetic, , SEM,

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