Magnetic adsorbent constructed from the loading of amino functionalized Fe3O4 on coordination complex modified polyoxometalates nanoparticle and its tetracycline adsorption removal property study

Ou, Jinzhao; Mei, Mingliang; Xu, Xinxin

doi:10.1016/j.jssc.2016.03.021

Cited by 39 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this effect was not observed on the magnetic separability of the nanoparticles from the bulk solution [ 38 , 39 ]. The saturation magnetization of the thiol-functionalized magnetic sawdust is 7.28 emu/g [ 37 ] while the one for magnetic polyoxometalates-based adsorbent is 8.19 emu/g [ 40 ]. Compared with the existing magnetic adsorbent values, the magnetite saturation value of mag@silica-Ag is high enough to be used for magnetic separation.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution

Choi

2021

Toxics

View full text Add to dashboard Cite

Mag@silica-Ag composite has a high sorption ability for I− in aqueous solution due to its high surface area and strong affinity for the studied anion. The material adsorbed I− rapidly during the initial contact time (in 45 min, η = 80%) and reached adsorption equilibrium after 2 h. Moreover, mag@silica-Ag proved to selectively remove I− from a mixture of Cl−, NO3− and I−. The adsorption behavior fitted the Langmuir isotherm perfectly and the pseudo-second-order kinetic model. Based on the Langmuir isotherm, the maximum adsorption capacity of mag@silica-Ag was 0.82 mmol/g, which is significantly higher than previously developed adsorbents. This study introduces a practical application of a high-capacity adsorbent in removing radioactive I− from wastewaters.

show abstract

Section: Resultsmentioning

confidence: 99%

Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution

Choi

2021

Toxics

View full text Add to dashboard Cite

show abstract

“…McCormick and Adriaens [86] employed ultra-small biogenic magnetite in the reductive transformation of CCl 4, stressing the key role of octahedral Fe(II) cations and the importance of the electron hopping between Fe(II) and Fe(III) cations in the B sites, which enables a good electron mobility for the surface reduction of CCl 4 . Efficient adsorption of tetracycline and diclofenac by proper functionalization of magnetic nanostructures has also been reported [165,166].…”

Section: Aromatic Compounds and Other Organic Pollutantsmentioning

confidence: 99%

Nanostructured Spinel Ferrites: Synthesis, Functionalization, Nanomagnetism and Environmental Applications

Odio¹,

Reguera²

2017

Magnetic Spinels - Synthesis, Properties and Applications

View full text Add to dashboard Cite

Nanostructured spinel ferrites have gained a great deal of attention. It comes from the possibility of tuning their magnetic properties by careful manipulation of the synthetic conditions. At the same time, since the nanoparticle (NP) surface is reactive toward many chemical groups, it provides great versatility for further functionalization of the nanosystems. Such characteristics make ferrite nanoparticles excellent candidates for environmental applications. First, the chapter deals with the basics of the synthetic methodologies, functionalization strategies and magnetic properties of nanoparticles, with emphasis on how surface manipulation is reflected in the properties of the materials. Next, we review some of the applications of ferrites as magnetic sorbents for several hazardous substances in aqueous medium and try to systematize the adsorption mechanism as a function of the coating material. Finally, a short summary concerning the main uses of ferrites as magnetic catalysts in oxidation technologies is included.

show abstract

“…In second place, a gradual adoption is observed during the CR degradation process. The time associated to this step depends to the some system variables such as temperature, absorbent particle size and solute concentration [56][57][58][59]. Finally, the organic molecules degraded exhibits a slow adsorption rate until the final equilibrium.…”

Section: Theoretical Adsorption Kinetic Modelsmentioning

confidence: 99%

Magnetic Nanoparticles of Fe3O4 Biosynthesized by Cnicus Benedictus Extract: Photocatalytic Study of Organic Dye Degradation and Antibacterial Behavior

Ruíz-Baltazar¹,

Reyes-López²,

Larrañaga-Ordáz³

et al. 2020

Preprint

View full text Add to dashboard Cite

Currently, the use of sustainable chemistry as an ecological alternative for the generation of products or processes, free of polluting substance has assumed a preponderant role. The aim of this work is propose a bioinspired, facile, at low cost, non-toxic and environmentally friendly alternative to obtaining magnetic nanoparticles whit a majority phase of magnetite (Fe3O4). Is important to empathize that the synthesis was based on the chemical reduction through the Cnicus Benedictus extract, whose use as reducing agent has not been reported in the synthesis of iron oxides nanoparticles. In addition, the Cnicus Benedictus is abundant endemic plant in Mexico, with several medicinal properties and a large number of natural antioxidants. The obtained nanoparticles exhibited significant magnetic and antibacterial properties and an enhanced photocatalytic activity. The crystallite size of the Fe3O4 nanoparticles (Fe3O4 NP’s) was calculated by Williamson-Hall method. The photocatalytic properties of the Fe3O4 NP´s were studied by kinetics absorptions models in the Congo red (CR) degradation. Finally the antibacterial effect of the Fe3O4 NP´s were evaluated mediated the Kirby-Bauer method against E. coli and S. aureus bacteria. This route offers a green alternative to obtain Fe3O4 NP´s with remarkable magnetic, photocatalytic and antibacterial properties.

show abstract

Magnetic adsorbent constructed from the loading of amino functionalized Fe3O4 on coordination complex modified polyoxometalates nanoparticle and its tetracycline adsorption removal property study

Cited by 39 publications

References 28 publications

Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution

Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution

Nanostructured Spinel Ferrites: Synthesis, Functionalization, Nanomagnetism and Environmental Applications

Magnetic Nanoparticles of Fe<sub>3</sub>O<sub>4</sub> Biosynthesized by <em>Cnicus Benedictus</em> Extract: Photocatalytic Study of Organic Dye Degradation and Antibacterial Behavior

Contact Info

Product

Resources

About