METİLEN MAVİSİNİN MAGNETİK NiFe2O4/AKTİF KARBON NANOKOMPOZİTİ İLE ADSORPSİYONU: KİNETİK VE İZOTERM

Ayhan Abdullah CEYHAN; Orhan BAYTAR

METİLEN MAVİSİNİN MAGNETİK NiFe2O4/AKTİF KARBON NANOKOMPOZİTİ İLE ADSORPSİYONU: KİNETİK VE İZOTERM

Ayhan Abdullah CEYHAN, Orhan BAYTAR

Öz

Bu çalışmada, ticari aktif karbon yüzeyine NiFe₂O₄ nano parçacıklarının tutturulmasıyla sentezlenen magnetik NiFe₂O₄/aktif karbon nanokompoziti ile sulu çözeltilerden metilen mavisi (MM) adsorpsiyonu incelenmiştir. Sentezlenen magnetik NiFe₂O₄/aktif karbon nanokompozitin karakterizasyonu SEM, BET ve FTIR cihazları ile gerçekleştirilmiştir. Adsorpsiyon çalışmalarında; çözelti başlangıç pH değeri, MM başlangıç derişimi, adsorbent miktarı ve çözelti ortam sıcaklığı parametrelerinin etkileri araştırılmıştır. MM mavisi çözelti başlangıç konsantrasyonu ve zamanın artmasıyla birlikte adsorpsiyon kapasitesinin arttığı tespit edilmiştir. Adsorpsiyon denge verilerinin Langmuir izotermine uyduğu tespit edilmiştir. Maksimum adsorpsiyon kapsitesi q_max, 167,45 mg/g olarak belirlenmiş ve adsorpsiyon kinetiğinin yalancı ikinci derece kinetik modele uyduğu tespit edilmiştir.

Anahtar Kelimeler

Magnetik, nanokompozit, adsorpsiyon, kinetik, izoterm

Tam Metin:

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