Humic Acid/Quercetin Coated Magnetic Fe3O4 Nanoparticles For Adsorptive Removal of Cu2+ and Ni2+
Abstract
Removal
of metals and heavy metals from industrial wastewaters is a serious concern for
water systems. In this study, environmentally friendly natural polymer coated,
cost-effective, easy to operate HA/QR magnetic nanoparticles were suggested to
overcome this problem, for the first time in literature. Fe3O4
magnetic nanoparticles were synthesized with co-precipitation technique and a
core-shell structure was obtained with humic acid sodium salt (HA) solution. At
the second step of the procedure, synthesized magnetic nanoparticles were
coated with quercetin solution. Scanning electron microscopy (SEM), X-Ray diffraction
(XRD) and particle size analyses were performed to enlighten and characterize
the structure. The newly synthesized nanoparticles were used for the batch-wise
adsorption of copper and nickel metals, successfully. Maximum adsorption
capacities were calculated as 14.61 mg/g for copper and 28.30 mg/g using 0.03 g
adsorbents, at pH=7. Adsorption isotherms were evaluated and it was concluded
that adsorption equilibrium fitted to both Langmuir and Freundlich isotherm
models, better correlated with Langmuir isotherm model.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Fatoş Ayça Özdemir Olgun
*
İSTANBUL TEKNİK ÜNİVERSİTESİ
0000-0003-1077-2621
Türkiye
Birsen Demirata Öztürk
İSTANBUL TEKNİK ÜNİVERSİTESİ
0000-0002-0978-0977
Türkiye
Publication Date
June 30, 2019
Submission Date
January 3, 2018
Acceptance Date
January 4, 2019
Published in Issue
Year 1970 Volume: 40 Number: 2