Synthesis of Magnetic Fe3O4-Chitosan Nanoparticles by Ionic Gelation and Their Dye Removal Ability

Date

2015-05-01

Author

ŞAHBAZ, DENİZ AKIN
YAKAR, ARZU
Gündüz, Ufuk

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

233
views

0
downloads

The aim of this study was to synthesize magnetic Fe3O4 chitosan nanoparticles (m-Fe3O4-CNs) by ionic gelation method and use them as adsorbent for the removal of Bromothymol Blue (BB) from aqueous solutions. Also, the effect of various parameters on the preparation of m-Fe3O4-CNs was investigated in this study. The nanoparticles were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), Fourier transform infrared (FTIR) spectroscopy and vibrating sample magnetometry (VSM). Adsorption of BB on m-Fe3O4-CNs was studied in a batch reactor at different experimental conditions such as adsorbent dosage, pH, contact time, initial BB concentration and temperature. Kinetic behaviors, equilibrium isotherms and thermodynamics of the adsorption process were investigated in detail. The Langmuir adsorption isotherm model and pseudo-second-order kinetic model well fitted the adsorption experimental results. The thermodynamic parameters showed that the adsorption was a spontaneous, favorable and exothermic process in nature.

Subject Keywords

Ionic gelation, Magnetite, Chitosan, Nanoparticles, Bromothymol blue, Adsorption

URI

https://hdl.handle.net/11511/31984

Journal

WATER ENVIRONMENT RESEARCH

DOI

https://doi.org/10.2175/106143014x14062131178673

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Synthesis of new pyrazolium based tunable aryl alkyl ionic liquids and their use in removal of methylene blue from aqueous solution Özdemir, Melek (2019-6-29) In this study, two new pyrazolium based tunable aryl alkyl ionic liquids, 2-ethyl-1-(4-methylphenyl)-3,5- dimethylpyrazolium tetrafluoroborate (3a) and 1-(4-methylphenyl)-2-pentyl-3,5-dimethylpyrazolium tetrafluoroborate (3b), were synthesized via three-step reaction and characterized. The removal of methylene blue (MB) from aqueous solution has been investigated using the synthesized salts as an extractant and methylene chloride as a solvent. The obtained results show that MB was extracted from aqueous sol...
Synthesis of CuO nanostructures on zeolite-Y and investigation of their CO2 adsorption properties Boruban, Cansu; Nalbant Esentürk, Emren (2017-10-01) Copper(II) oxide (CuO) nanoparticles (NPs) in two different morphologies, spiky and spherical, were synthesized on zeolite-Y by a modified impregnation method, and their CO2 adsorbing capabilities were investigated under standard conditions (1 atm and 298 K). The properties and CO2 adsorption performances of the hybrid systems were characterized by transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray, X-ray diffraction, X-ray photoelectron spectroscopy, atomic absorption s...
Development of a novel PANI@WO3 hybrid composite and its application as a promising adsorbent for Cr(VI) ions removal Hsini, Abdelghani; Naciri, Yassine; Laabd, Mohamed; Bouzıanı, Asmae; Navío, J.A.; Puga, F.; Boukherroub, Rabah; Lakhmiri, Rajae; Albourine, Abdallah (2021-10-01) In the current study, an in-situ oxidative polymerization method was used to synthesize polyaniline-coated tungsten trioxide biphasic composite (PANI@WO3). The as-developed composite material properties were elucidated using different characterization tools such as X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), N2 sorption-desorption isotherm, and X-ray photoelect...
Synthesis of boron and zirconium co-doped titanium dioxide nanopowders by the sol-gel technique / Ağartan, Lütfi; Öztürk, Abdullah; Park, Jongee; Department of Metallurgical and Materials Engineering (2014) Effects of water/Ti precursor molar ratio (R ratio) and calcination regime on the photocatalytic properties of undoped, boron (B) doped, zirconium (Zr) doped, and B and Zr co-doped TiO2 powders synthesized by sol-gel process were researched. Undoped powders were synthesized for R ratio of 1, 3, 5, 10, 30, and 50 while doped and co-doped powders were synthesized for R ratio of 50. Undoped powders were calcined at 300, 400, and 500oC for 1, 2, and 3 h while doped and co-doped powders were calcined at 300 and ...
Synthesis, spectroscopic and electrochemical studies of perylene containing conjugated copolymers Bayseç, Şebnem; Toppare, Levent Kamil; Yılmaz, Levent; Department of Polymer Science and Technology (2013) The synthesis , spectroscopic and electrochemical properties of a series of donor-acceptor (DA) type polymers by changing the donor unit (thiophene, dithienopyrrole) polymer backbone were investigated.The synthesized CoP1 and CoP2 were designed to investigate the effect of copolymerization and insertion of perylene tetracarboxylic dimide (PDI) on the structure of benzotriazole (BTz) based polymers. For CoP1 1,7-dibromo-perylene diimide,4,7-dibromo-2-dodecyl-2H-benzo[d][1,2,3]triazole and 2,5 bis(tributylsta...

Citation Formats

D. A. ŞAHBAZ, A. YAKAR, and U. Gündüz, “Synthesis of Magnetic Fe3O4-Chitosan Nanoparticles by Ionic Gelation and Their Dye Removal Ability,” WATER ENVIRONMENT RESEARCH, pp. 425–436, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31984.