An ammonium molybdate deposited amorphous silica coated iron oxide magnetic core–shell nanocomposite for the efficient synthesis of 2-benzimidazoles using hydrogen peroxide

2014 ◽  
Vol 16 (6) ◽  
pp. 3160-3168 ◽  
Author(s):  
Guoyi Bai ◽  
Xingwang Lan ◽  
Xiaofang Liu ◽  
Chen Liu ◽  
Lingjuan Shi ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Amorphous Silica ◽  
Magnetic Core ◽  
Ammonium Molybdate ◽  
Core Shell ◽  
Efficient Synthesis

An eco-friendly method was developed for the synthesis of 2-benzimidazoles over an Fe3O4@SiO2@(NH4)6Mo7O24 magnetic core–shell nanocomposite using hydrogen peroxide.

Preparation of a H3PW12O40 Deposited Chitosan Coated Iron Oxide Magnetic Core–Shell Nanocomposite for Friedel-Crafts Acylation

2018 ◽  
Vol 18 (1) ◽  
pp. 676-680
Author(s):  
Xin Wen ◽  
Huanhuan Zhang ◽  
Fei Tian ◽  
Xiaofang Liu ◽  
Libo Niu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Core ◽  
Core Shell

Engineered Magnetic Core–Shell SiO2/Fe Microspheres and “Medusa-like” Microspheres of SiO2/Iron Oxide/Carbon Nanofibers or Nanotubes

Langmuir ◽  
2014 ◽  
Vol 30 (32) ◽  
pp. 9850-9858 ◽  
Author(s):  
On Mero ◽  
Moulay-Tahar Sougrati ◽  
Jean-Claude Jumas ◽  
Shlomo Margel
Keyword(s):  
Iron Oxide ◽  
Carbon Nanofibers ◽  
Magnetic Core ◽  
Core Shell

scholarly journals A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xiao Ni ◽  
Mingwei Tian ◽  
Jun Sun ◽  
Xiaojun Chen
Keyword(s):  
Electron Microscopy ◽  
Hydrogen Peroxide ◽  
Indium Tin Oxide ◽  
Magnetic Core ◽  
Au Nanoparticle ◽  
Core Shell ◽  
Solution Ph ◽  
Catalytic Current ◽  
Magnetic Nanospheres ◽  
H2o2 Sensor

Fe3O4@C/Au nanoparticle (AuNP) nanocomposites were prepared through electrostatic adsorption of AuNPs onto PDDA-functionalized core/shell Fe3O4@C magnetic nanospheres, which had been synthesized by a facile solvothermal method. The morphology and composition of the nanocomposites were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), etc. Moreover, highly electrocatalytic activity to the reduction of hydrogen peroxide (H2O2) was also exhibited on the Fe3O4@C/AuNP-modified indium tin oxide (ITO) electrode. The effect of solution pH and the modification amount of Fe3O4@C/AuNPs on the performance of electrocatalytic H2O2 reduction was investigated. Under the optimal conditions, the catalytic current showed a linear relationship with the increase of H2O2 concentration in the range of 0.007–15 mM and a detection limit of 5 μM. The H2O2 sensor showed high selectivity for H2O2 detection, which could effectively resist the interference of ascorbic acid (AA), uric acid (UA), and citric acid (CA). Finally, the H2O2 sensor was used in the real fetal bovine serum to detect H2O2 and obtained satisfactory results with the recovery values ranging from 95.14 to 103.6%.

Preparation of magnetic core–shell iron oxide@silica@nickel-ethylene glycol microspheres for highly efficient sorption of uranium(vi)

2015 ◽  
Vol 44 (15) ◽  
pp. 6909-6917 ◽  
Author(s):  
Lichao Tan ◽  
Xiaofei Zhang ◽  
Qi Liu ◽  
Jun Wang ◽  
Yanbo Sun ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Ethylene Glycol ◽  
Magnetic Core ◽  
Core Shell ◽  
Highly Efficient

We report a facile approach for the formation of magnetic core–shell iron oxide@silica@nickel-ethylene glycol (Fe3O4@SiO2@Ni-L) microspheres.

scholarly journals Iron oxide–Si nanoparticle magnetic core–shell induced by the interaction of d-orbitals of Fe2+ with reconstructed Si dimer-like defects

AIP Advances ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 055221
Author(s):  
Noha Elhalawany ◽  
Kevin Mantey ◽  
Tuan Hoang ◽  
Ersin Bahceci ◽  
Jiacheng Xu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Core ◽  
Core Shell ◽  
Si Nanoparticle ◽  
D Orbitals

Facile synthesis of magnetic core–shell nanocomposites for MRI and CT bimodal imaging

2015 ◽  
Vol 3 (34) ◽  
pp. 6905-6910 ◽  
Author(s):  
Jing Zhu ◽  
Jiaqing Wang ◽  
Xin Wang ◽  
Jingfen Zhu ◽  
Yanmei Yang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Core ◽  
Core Shell ◽  
Facile Synthesis ◽  
Magnetic Iron Oxide ◽  
Bimodal Imaging ◽  
Iron Oxide Core

A facile synthesis of nanocomposites for MR/CT bimodal imaging with a magnetic iron oxide core and bismuth-based shell.

scholarly journals On the synthesis of bi-magnetic manganese ferrite-based core–shell nanoparticles

2021 ◽  
Author(s):  
Marco Sanna Angotzi ◽  
Valentina Mameli ◽  
Claudio Cara ◽  
Davide Peddis ◽  
Huolin L. Xin ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Cobalt Ferrite ◽  
Magnetic Core ◽  
Oxide Shell ◽  
Core Shell ◽  
Manganese Ferrite ◽  
Shell Nanoparticles ◽  
Seed Mediated ◽  
Core Shell Nanoparticles

Dissolution phenomena in seed-mediated growth approaches of MnFe2O4-based bi-magnetic core–shell nanoheterostructures with a cobalt ferrite or spinel iron oxide shell.

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