Removal of chromium(VI) and dye Alizarin Red S (ARS) using polymer-coated iron oxide (Fe3O4) magnetic nanoparticles by co-precipitation method

In this work, Fe3O4 magnetic nanoparticles with high peroxidase-like catalytic activity and spontaneous pH adjustment ability were successfully prepared by co-precipitation method followed by appropriate thermal treatment. Key synthesis factors were identified and adjusted to tailor the crystallinity, chemical composition and then catalytic property. The crystal structure and Fe (II) content of the catalyst strongly affected its degradation efficiency. Phenol was completely removed by the optimal magnetic nanoparticles under a wide range of pH from 3.0 to 8.0. Additionally, this catalyst exhibited low iron leaching, good reusability and excellent potential to eliminate various organic pollutants from waste water. The reaction mechanism was discussed in terms of the formation of HO• and O2•−/HO2• radicals.

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CONTROLLED GROWTH OF IRON OXIDE MAGNETIC NANOPARTICLES VIA CO-PRECIPITATION METHOD AND NaNO3 ADDITION

Jurnal Sains Materi Indonesia ◽

10.17146/jsmi.2017.18.3.4122 ◽

2017 ◽

Vol 18 (3) ◽

pp. 136 ◽

Cited By ~ 1

Author(s):

Grace Tj. Sulungbudi ◽

Yuliani Yuliani ◽

Wildan Zakiah Lubis ◽

Sri Sugiarti ◽

Mujamilah Mujamilah

Keyword(s):

Iron Oxide ◽

Magnetic Nanoparticles ◽

Precipitation Method ◽

Controlled Growth ◽

Iron Oxide Magnetic Nanoparticles ◽

Co Precipitation

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Coral Limestone Modified by Magnetite and Maghemite Nanocomposites for Sequestration of Lead(II) and Chromium(VI) Ions from Aqueous Solution

Asian Journal of Chemistry ◽

10.14233/ajchem.2021.23027 ◽

2021 ◽

Vol 33 (4) ◽

pp. 712-726

Author(s):

C.S. NKUTHA ◽

N.D. SHOOTO ◽

E.B. NAIDOO

Keyword(s):

Iron Oxide ◽

Visible Region ◽

Blue Shift ◽

Precipitation Method ◽

One Pot ◽

Chromium Vi ◽

Air Atmosphere ◽

Two Phases ◽

Gibb’S Free Energy ◽

Co Precipitation

In present work, a one pot synthesis of magnetic nanocomposites was synthesized by using co-precipitation method in air atmosphere. The synthesis of magnetite and maghemite supported on biogenic coral limestone was done by varying the ratio of Fe(II)/Fe(III) in solution to obtain the two phases of iron oxide and capping with sucrose in air atmosphere. The nanocomposites were characterized by FTIR, where the results showed a distinct peak for Fe-O, while UV/vis showed an absorption in the visible region which is typical of iron oxide. Photoluminescence results showed that the nanocomposites were both red shifted for magnetite-PCLS (PCLS = pristine coral limestone) and magnetite-CCLS (CCLS = calcined coral limestone); while a blue shift and red shift was observed for the maghemite- PCLS and maghemite-CCLS. From the SEM a deviation of sphericity of the nanocomposites, with maghemite having an uneven distribution was observed. Equilibrium was reached within 60 min, of which maghemite showed higher metal uptake. The kinetic data fit PSOM better as compared to PFOM, this means that adsorption was due to the charge density on the surface of the nanocomposites. The good fit for intraparticle diffusion (IPD) also suggested that adsorption was also observed due to mass transfer, it was observed that the rate limiting step was due to surface adsorption. This was in good correlation with the better fit of PSOM. The mechanism of adsorption was found to be better explained by physisorption and the surface was heterogeneous whereby multilayer adsorption was possible. The data was also subjected to Dubinin-Radushkevich isotherm, which suggests that the uptake of the pollutants was due to physisorption. The adsorption process was spontaneous and favourable which is supported by the negative values of Gibb’s free energy for the system.

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The synthesization of Fe3O4 magnetic nanoparticles based on natural iron sand by co-precipitation method for the used of the adsorption of Cu and Pb ions

Journal of Physics Conference Series ◽

10.1088/1742-6596/776/1/012020 ◽

2016 ◽

Vol 776 ◽

pp. 012020 ◽

Cited By ~ 15

Author(s):

E. A. Setiadi ◽

P. Sebayang ◽

M. Ginting ◽

A. Y. Sari ◽

C. Kurniawan ◽

...

Keyword(s):

Magnetic Nanoparticles ◽

Precipitation Method ◽

Fe3o4 Magnetic Nanoparticles ◽

Natural Iron ◽

Pb Ions ◽

Co Precipitation

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Fe3O4 Magnetic Nanoparticles: Characterization and Performance Exemplified by the Degradation of Methylene Blue in the Presence of Persulfate

Journal of Advanced Oxidation Technologies ◽

10.1515/jaots-2016-0105 ◽

2016 ◽

Vol 19 (1) ◽

Cited By ~ 2

Author(s):

Chang-Mao Hung ◽

Chiu-Wen Chen ◽

Yu-Zhe Jhuang ◽

Cheng-Di Dong

Keyword(s):

Methylene Blue ◽

Iron Oxide ◽

Magnetic Nanoparticles ◽

Fe3o4 Magnetic Nanoparticles ◽

Iron Oxide Magnetic Nanoparticles ◽

Nanoparticles Characterization ◽

And Performance

AbstractIn this study, the oxidation of methylene blue (MB) over iron oxide magnetic nanoparticles (Fe

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Efficient capturing and sensitive detection of hepatitis A virus from solid foods (green onion, strawberry, and mussel) using protamine-coated iron oxide (Fe3O4) magnetic nanoparticles and real-time RT-PCR

Food Microbiology ◽

10.1016/j.fm.2021.103921 ◽

2021 ◽

pp. 103921

Author(s):

Ruiqin Wu ◽

Baozhong Meng ◽

Milena Corredig ◽

Mansel W. Griffiths

Keyword(s):

Iron Oxide ◽

Magnetic Nanoparticles ◽

Real Time ◽

Hepatitis A ◽

Hepatitis A Virus ◽

Sensitive Detection ◽

Fe3o4 Magnetic Nanoparticles ◽

Rt Pcr ◽

Solid Foods

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Photocatalytic Degradation of Alizarin Red-S by Fe-Co Nanoparticles Prepared By Chemical Co-precipitation Method

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v11i9.2686 ◽

2015 ◽

Vol 11 (9) ◽

pp. 3950-3958 ◽

Cited By ~ 1

Author(s):

Chandrakant Vedu Nandre ◽

C.P. Sawant

Keyword(s):

Photocatalytic Degradation ◽

Contact Time ◽

Oxygen Demand ◽

Kinetic Studies ◽

Water Soluble ◽

Precipitation Method ◽

Alizarin Red ◽

Co Nanoparticles ◽

Co Precipitation ◽

Red Dye

In the present study photocatalytic degradation of hazardous water soluble alizarin red dye by using Fe-Co nanoparticles has been investigated. Fe-Co nanoparticles was synthesized by chemical co-precipitation method and characterized by TEM, SEM, EDAX and XRD. The photocatalytic degradation have been studied with the help of variety of parameters such as catalytic dose, dye concentration, pH, contact time and most important chemical oxygen demand. It was observed that The photocatalytic degradation of alizarin red dye by using Fe-Co nanoparticles was an effective ,economic, ecofriendly and faster mode of removing dye from an aqueous solution. The optimum condition for the degradation of the dye was 50 mg/L,pH 8.0, catalyst dose 60 mg/L and contact time 60 minutes. The kinetic studies also have been studied.

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Biological activity of gum Arabic-coated ferrous oxide nanoparticles

Modern Physics Letters B ◽

10.1142/s021798492150411x ◽

2021 ◽

pp. 2150411

Author(s):

Rania Hasan Huseen ◽

Ali A. Taha ◽

Ihab Q. Ali ◽

Oday Mahmmod Abdulhusein ◽

Selma M. H. Al-Jawad

Keyword(s):

Iron Oxide ◽

Cell Line ◽

Biological Activities ◽

Low Cost ◽

Gum Arabic ◽

Precipitation Method ◽

Oxide Nanoparticles ◽

Electron Microscopic ◽

Co Precipitation ◽

Mcf 7

In this study, iron oxide nanoparticles (NPs) had been prepared by co-precipitation method. In order to reduce their toxicity and increase stability, prepared iron oxide was coated with gum Arabic. Gum Arabic is preferred over synthetic materials due to their non-toxicity, low cost and availability. Characterization of coated and non-coated iron oxide NPs had been performed by spectrophotometer, Fourier transfer infra-red spectrophotometer (FTIR), Zeta potential, X-ray diffraction (XRD) and field emission scanning electron microscopic (FE-SEM). The fabricated nanoparticles appeared purity and crystalline nature by XRD, with diameter average of 27.01 nm and 55.12 nm for iron oxide NPs and iron oxide NPs coated with gum Arabic, respectively. On the other hand, four biological activities of coated and non-coated iron oxide had been investigated. High removal of methylene blue pollutant dye (46%) was observed with iron oxide NPs, while removal percentage was 22.6 performed by iron oxide NPs coated with gum Arabic within 72 h. Iron oxide NPs revealed high inhibition zones of 27.5 nm and 30 mm, at 1000 [Formula: see text]g/ml, against S. aureus and E. coli, respectively, while coated iron oxide NPs with gum Arabic revealed low antibacterial activity against both examined bacteria even when used at 1000 [Formula: see text]g/ml. The hemolytic activity of prepared NPs had been determined. The hemolytic percentage was increased whenever concentrations of nanoparticles increased. Lower hemolytic percentages were 69.76 and 50.98 for iron oxide NPs and iron oxide NPs coated with gum Arabic were observed at a concentration of 250 [Formula: see text]g/ml. Finally, cytotoxic activity was estimated against MCF-7 cell line and normal cell line WRL68 by MTT assay. A decrease in MCF-7 viability to 65.1% was observed when 400 [Formula: see text]g/ml of iron oxide NPs was used, while WRL68 viability was 75.03%. Iron oxide NPs coated with gum Arabic revealed significant reduction in MCF-7 and WRL68 viability to 69.90% and 80.05%, respectively, when 400 [Formula: see text]g/ml of nanoparticles was applied.

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