Kinetics and thermodynamics of textile dye removal by adsorption onto iron oxide nanoparticles

Currently, green synthesis approach is used as the biocompatible, eco-friendly, and sustainable alternative of conventional approaches to synthesize iron oxide nanoparticles. In this work, magnetic iron oxide nanoparticles were synthesized by using plantain peel extract via green and biogenic approach. The surface of green synthesized iron oxide nanoparticles was functionalized to increase the stability of the nanoparticles and maintain the coexisting of both magnetic and catalytic property of the nanoparticles at the same time. Two kinds of surface functionalization structures were synthesized in this study, included silica core-iron oxide shell nanoparticles and silica core-PDDA polymerized iron oxide shell nanoparticles. The main concern of this study is the performance of bare and surface functionalized green synthesized nanoparticles. Methylene blue and methyl orange dyes were used as the model of dye removal test to indicate the feasibility of the synthesized nanocomposites. In summary, surface functionalized nanocomposites achieved higher dye removal efficiency than bare green synthesized iron oxide nanoparticles in both the methylene blue and methyl orange degradation test. Methylene blue dye was removed in higher rate than methyl orange dye due to the presence of negatively charged iron oxide nanoparticles with both the adsorptive and catalytic properties. At last, the components present in plantain peel extract were confirmed by using Fourier Transform Infrared Spectroscopy.

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Comparative Studies of Dye Removal Efficiency of Surface Functionalized Nanoparticles with Other Adsorbents: Isotherm and Kinetic Study

Asian Journal of Chemistry ◽

10.14233/ajchem.2021.23471 ◽

2021 ◽

Vol 33 (12) ◽

pp. 3031-3038

Author(s):

Arti Jangra ◽

Jaiveer Singh ◽

Radhika Khanna ◽

Parvin Kumar ◽

Suresh Kumar ◽

...

Keyword(s):

Iron Oxide ◽

Humic Acid ◽

Iron Oxide Nanoparticles ◽

Removal Efficiency ◽

Magnetite Nanoparticles ◽

Dye Removal ◽

Oxide Nanoparticles ◽

X Ray Diffraction ◽

Crystal Violet Dye ◽

Pseudo Second Order

In present work, the synthesis of the humic acid functionalized iron oxide nanoparticles and their application in water treatment are reported. The bare and humic acid functionalized iron oxide nanoparticles were characterized using different techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR) spectroscopy. The synthesized magnetite nanoparticles coated with humic acid showed efficient removal of crystal violet dye from the aqueous solution. The functionalized magnetite nanoparticles were found to have higher adsorption capacity as compared to bare magnetite nanoparticles and the pure humic acid under specific conditions. The adsorption kinetics study was found in accordance with pseudo-second order kinetics while the isotherm data was observed to be in good agreement with the Tempkin isotherm. A comparative study of dye removal efficiency of humic acid functionalized magnetite nanoparticles with reported adsorbents has also been made.

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Chitosan-Graphene Oxide Hydrogels with Embedded Magnetic Iron Oxide Nanoparticles for Dye Removal

ACS Applied Nano Materials ◽

10.1021/acsanm.9b01909 ◽

2019 ◽

Vol 2 (11) ◽

pp. 7379-7392 ◽

Cited By ~ 12

Author(s):

Nirbhai Singh ◽

Sk Riyajuddin ◽

Kaushik Ghosh ◽

Surinder K. Mehta ◽

Abhijit Dan

Keyword(s):

Graphene Oxide ◽

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Dye Removal ◽

Oxide Nanoparticles ◽

Magnetic Iron Oxide Nanoparticles ◽

Magnetic Iron Oxide

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Magnetic hyperthermia – high therapeutic efficiency of superparamagentic iron oxide nanoparticles in cancer xenograft models

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren ◽

10.1055/s-0034-1372776 ◽

2014 ◽

Vol 186 (S 01) ◽

Author(s):

H Dähring ◽

R Lundwig ◽

S Kossatz ◽

V Ettelt ◽

G Rimkus ◽

...

Keyword(s):

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Magnetic Hyperthermia ◽

Oxide Nanoparticles ◽

Therapeutic Efficiency ◽

Xenograft Models

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TARGETING CYCLIN B1 WITH ANTISENSE OLIGONUCLETOTIDES- COATED SUPERPARAMAGNETIC IRON OXIDE NANOPARTICLES

Journal of Drug Discovery and Therapeutics ◽

10.32553/jddt.v6i10.444 ◽

2018 ◽

Vol 6 (10) ◽

Author(s):

Hosam Zaghloul ◽

Doaa A. Shahin ◽

Ibrahim El- Dosoky ◽

Mahmoud E. El-awady ◽

Fardous F. El-Senduny ◽

...

Keyword(s):

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Cellular Uptake ◽

Superparamagnetic Iron Oxide ◽

Cyclin B1 ◽

Superparamagnetic Iron Oxide Nanoparticles ◽

Oxide Nanoparticles ◽

Mcf7 Cells ◽

M Phase ◽

The Impact

Antisense oligonucleotides (ASO) represent an attractive trend as specific targeting molecules but sustain poor cellular uptake meanwhile superparamagnetic iron oxide nanoparticles (SPIONs) offer stability of ASO and improved cellular uptake. In the present work we aimed to functionalize SPIONs with ASO targeting the mRNA of Cyclin B1 which represents a potential cancer target and to explore its anticancer activity. For that purpose, four different SPIONs-ASO conjugates, S-M (1–4), were designated depending on the sequence of ASO and constructed by crosslinking carboxylated SPIONs to amino labeled ASO. The impact of S-M (1–4) on the level of Cyclin B1, cell cycle, ROS and viability of the cells were assessed by flowcytometry. The results showed that S-M3 and S-M4 reduced the level of Cyclin B1 by 35 and 36%, respectively. As a consequence to downregulation of Cyclin B1, MCF7 cells were shown to be arrested at G2/M phase (60.7%). S-M (1–4) led to the induction of ROS formation in comparison to the untreated control cells. Furthermore, S-M (1–4) resulted in an increase in dead cells compared to the untreated cells and SPIONs-treated cells. In conclusion, targeting Cyclin B1 with ASO-coated SPIONs may represent a specific biocompatible anticancer strategy.

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