Removal of Malachite Green from Waste Waters by Bentonite Based Photocatalyst Technology
Yazarlar (2)
Prof. Dr. Kinyas POLAT Dokuz Eylül Üniversitesi, Türkiye
Mürüvvet Yurdakoç
Dokuz Eylül Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Journal of the Turkish Chemical Society Section A Chemistry
Dergi ISSN 2149-0120 Dergi Bilgileri (2019)
Dergi Tarandığı Indeksler TR DİZİN
Makale Dili İngilizce Basım Tarihi 06-2019
Kabul Tarihi 24-05-2019 Yayınlanma Tarihi 15-06-2019
Cilt / Sayı / Sayfa 6 / 2 / 261–270 DOI 10.18596/jotcsa.526822
Makale Linki http://dergipark.org.tr/doi/10.18596/jotcsa.526822
UAK Araştırma Alanları
Fiziksel Kimya
Özet
MgFe 2 O 4 -B/Ag 3 VO 4 visible light active photocatalyst was successfully synthesized for the photocatalytic decolorization of organic pollutants. Malachite green (MG) was selected as a model dye representing those pollutant chemicals. The catalyst was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). Malachite green (MG) decolorization was carried out by visible light irradiation of a 105 W tungsten light source. Decolorization yield and kinetic studies were traced by the help of a UV-Vis spectrophotometer. Kinetic model of decolorization was derived from Langmuir–Hinshelwood (L–H) model and found coherent to first order kinetics. Catalysis reaction showed high dependency on pH especially out of 5-7 range which gave high decolorization. Photocatalytic activity also depended on concentration with dual character in which high concentration hindered the light coming to catalyst surface but on the other hand it supported the activity by boosting the dark adsorption resulting in a decolorization time changing from 40 to 100 min. After the reaction was completed, powders of catalyst were effortlessly removed from the medium by a magnet bar. It was shown that MgFe 2 O 4 -B/Ag 3 VO 4 photocatalyst has a potential to be simple and efficient alternative material for the removal pollution resources from wastewaters.
Anahtar Kelimeler
Decolorization | Malachite green | Photocatalyst | Visible light active catalyst | Wastewater
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
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Removal of Malachite Green from Waste Waters by Bentonite Based Photocatalyst Technology

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