Biosynthesis and characterization of iron oxide nanoparticles from Enteromorpha spp. extract: determination of adsorbent properties for copper (II) ions

Gizem ERCAN; Deniz UZUNOĞLU; Memduha ERGÜT; Ayla ÖZER

Article Details

Biosynthesis and characterization of iron oxide nanoparticles from Enteromorpha spp. extract: determination of adsorbent properties for copper (II) ions

Authors:

Gizem ERCAN | Deniz UZUNOĞLU | Memduha ERGÜT | Ayla ÖZER

Publisher:

Ceyhun YILMAZ

Main Topics:

Engineering and applied operations

Journal:

International Advanced Researches and Engineering Journal 2019 Vol.3 Issue 1, pp.65-74

Document Type:

Article

Publication Date:

4/2019

Document Language:

English

Document ID (Org No.):

2000469477

Frequency:

Tri-annual

eISSN:

2618-575X

Abstract:

 


Iron oxide nanoparticles (IO-NPs) were synthesized
via a biosynthesis method using marine algae Enteromorpha spp. extract as a biological reductant agent in this
study. Moreover, the total phenolic content of Enteromorpha spp. was found as 9.81±
4.8 mg gallic acid equivalents/g dry algae. The biosynthesized IO-NPs were
characterized by zeta potential, DLS, SEM/EDX, and FTIR analysis methods and
also the formation of IO-NPs was approved with the UV-vis spectrum. The characteristic surface plasmon resonance (λSPR,
nm) value showing the formation of IO-NPs was observed at nearly 410 nm in terms of UV–vis
analysis. According to DLS analysis
results, the mean hydrodynamic diameter of IO-NPs was determined as
78.83 nm. According to SEM results, spherical nanoparticles are formed, and EDX analysis showed that the
signals in the Fe and O elements confirmed the formation IO-NPs. According
to FT-IR analysis results, the formation of IO-NPs was approved by the absorption bands at 599.83, and
475 cm−1, which corresponded to the Fe-O stretches of Fe3O4
and Fe2O3. Subsequently, the synthesized IO-NPs were utilized as an adsorbent for the removal of Cu2+ from aqueous solutions. Batch adsorption
experiments were conducted to examine the optimum adsorption environmental
conditions and the equilibrium, kinetics, and mass transfer modeling was also
evaluated. The optimum adsorption conditions were found as initial pH 5.0;
temperature 35°C, initial Cu2+ concentration 275 mg/L, and adsorbent concentration 0.5 g/L. The
experimental equilibrium data were in the best agreement with Langmuir isotherm
model, and the maximum monolayer coverage capacity of IO-NPs for Cu2+
adsorption found to be 188.68
mg/g at optimum temperature value of 35°C. The adsorption kinetic data were
consistent with the pseudo second order kinetic model, and Weber Morris model
showed that both the film (boundary layer) and intraparticle diffusion affected
the adsorption process.



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Article Details

Biosynthesis and characterization of iron oxide nanoparticles from Enteromorpha spp. extract: determination of adsorbent properties for copper (II) ions

Authors: Gizem ERCAN | Deniz UZUNOĞLU | Memduha ERGÜT | Ayla ÖZER

Publisher: Ceyhun YILMAZ

Main Topics: Engineering and applied operations

Journal: International Advanced Researches and Engineering Journal 2019 Vol.3 Issue 1, pp.65-74

Document Type: Article

Publication Date: 4/2019

Document Language: English

Document ID (Org No.): 2000469477

Frequency: Tri-annual

eISSN: 2618-575X

Issues

Authors:

Gizem ERCAN | Deniz UZUNOĞLU | Memduha ERGÜT | Ayla ÖZER

Publisher:

Ceyhun YILMAZ

Main Topics:

Engineering and applied operations

Journal:

International Advanced Researches and Engineering Journal 2019 Vol.3 Issue 1, pp.65-74

Document Type:

Article

Publication Date:

4/2019

Document Language:

English

Document ID (Org No.):

2000469477

Frequency:

Tri-annual

eISSN:

2618-575X