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Fast Decolorization of Cationic Dyes by Nano-Scale Zero Valent Iron Immobilized in Sycamore Tree Seed Pod Fibers: Kinetics and Modelling Study

Fast Decolorization of Cationic Dyes by Nano-Scale Zero Valent Iron Immobilized in Sycamore Tree Seed Pod Fibers: Kinetics and Modelling Study

Şerife Parlayıcı, Erol Pehlivan

Int J Phytoremediation. 2019;21(11):1130-1144.

PMID: 31056930

Abstract:

In the present work, Sycamore (Platanus occidentalis) tree seed pod fibers (STSPF) and nano-scale zero valent iron particles (nZVI) immobilized in Sycamore tree seed pod fibers (nZVIʘSTSPF) were produced. This biosorbent has been utilized as a viable effective biosorbent in the removing of methylene blue hydrate (MB), malachite green oxalate(MG), methyl violet 2B(MV) dyes from synthetic wastewater. The biosorbents were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. Various parameters such as contact time, solution concentration, pH and amount of biosorbent were investigated in order to evaluate the potential of the nanomaterials immobilized on natural wastes as sorbing biomaterials for the cationic dyes. Study on sorption kinetic and the sorption isotherm was carried out and best fitting models for the rate kinetics and isotherms were suggested. Langmuir isotherm was observed to be compatible with the isotherm models. The STSPF in the raw form showed the best dye sorption capacity of 43.67 mg/g for MG, 25.32 mg/g for MV, and 126.60 mg/g for MB. The magnetic nZVIʘSTSPF showed the best dye sorption capacity 92.59 mg/g for MG, 92.59 mg/g for MV, and 140.80 mg/g for MB. The iron nanoparticles immobilized biosorbent exhibited a higher removal capacity for all dyes compared to the raw biosorbent.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP122965439	Methylene Blue hydrate		122965-43-9	Price

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