scholarly journals Adsorption mechanism of polyethyleneimine modified magnetic core–shell Fe3O4@SiO2 nanoparticles for anionic dye removal

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32462-32471 ◽  
Author(s):  
Binyan Huang ◽  
Yunguo Liu ◽  
Bin Li ◽  
Hui Wang ◽  
Guangming Zeng
Keyword(s):  
Adsorption Mechanism ◽  
Dye Removal ◽  
Sio2 Nanoparticles ◽  
Magnetic Core ◽  
Core Shell ◽  
Anionic Dye ◽  
Ft Ir

In this paper, polyethyleneimine modified magnetic core–shell Fe3O4@SiO2 nanoparticles (Fe3O4@SiO2/PEI) were innovatively synthesized and investigated using various techniques such as TEM, TGA, FT-IR, XRD, VSM and XPS.

scholarly journals Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
H. Rajabi-Moghaddam ◽  
M. R. Naimi-Jamal ◽  
M. Tajbakhsh
Keyword(s):  
High Efficiency ◽  
Click Reaction ◽  
Magnetic Core ◽  
Core Shell ◽  
Isatoic Anhydride ◽  
Shell Nanoparticles ◽  
Triazole Derivatives ◽  
Catalytic Application ◽  
Ft Ir ◽  
Core Shell Nanoparticles

AbstractIn the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

scholarly journals Highly selective fluorescent chemosensor for Zn2+ derived from inorganic-organic hybrid magnetic core/shell Fe3O4@SiO2 nanoparticles

2012 ◽  
Vol 7 (1) ◽  
pp. 86 ◽  
Author(s):  
Yujiao Wang ◽  
Xiaohong Peng ◽  
Jinmin Shi ◽  
Xiaoliang Tang ◽  
Jie Jiang ◽  
...  
Keyword(s):  
Sio2 Nanoparticles ◽  
Magnetic Core ◽  
Fluorescent Chemosensor ◽  
Core Shell ◽  
Organic Hybrid

A novel europium-sensitive fluorescent nano-chemosensor based on new functionalized magnetic core–shell Fe3O4@SiO2 nanoparticles

Talanta ◽  
2013 ◽  
Vol 115 ◽  
pp. 271-276 ◽  
Author(s):  
Mohammad Reza Ganjali ◽  
Morteza Hosseini ◽  
Mehdi Khobi ◽  
Shima Farahani ◽  
Masoom Shaban ◽  
...  
Keyword(s):  
Sio2 Nanoparticles ◽  
Magnetic Core ◽  
Core Shell

scholarly journals The Application of Sio2 Nanoparticles for Anionic Dye Removal from Aqueous Solution

2017 ◽  
Vol 6 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Faranak Shaghayeghi Toosi ◽  
Malihesadat Hosseiny ◽  
Ali Joghataei ◽  
Foad Shaghayeghi Toosi ◽  
◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dye Removal ◽  
Sio2 Nanoparticles ◽  
Anionic Dye

scholarly journals PREPARATION AND CHARACTERIZATION OF SIO2/POLY(METHYL METHACRYLATE) CORE/SHELL NANOCOMPOSITES VIA RAFT POLYMERIZATION

2018 ◽  
Vol 54 (1A) ◽  
pp. 285
Author(s):  
Long Giang Bach
Keyword(s):  
Methyl Methacrylate ◽  
Photoelectron Spectroscopy ◽  
Raft Polymerization ◽  
Simple Procedure ◽  
Sio2 Nanoparticles ◽  
Core Shell ◽  
Poly Methyl Methacrylate ◽  
Reversible Addition ◽  
Ft Ir ◽  
Grafting From

This article describes the fabrication of SiO2 nanoparticles grafted with poly(methyl methacrylate) (PMMA) via a fascinating reversible addition-fragmentation chain transfer (RAFT) polymerization by adopting “grafting from” approach. The silane coupling agent, S-benzyl S’-trimethoxysilylpropyltrithiocarbonate, was anchored onto SiO2 nanoparticles in a simple procedure using a ligand exchange reaction. RAFT agents-anchored SiO2 nanoparticles were then used for the surface-initiated RAFT polymerization of MMA to fabricate structurally well-defined, core-shell SiO2-g-PMMA nanocomposites. The structure and properties of the as-synthesized nanocomposites were investigated by Fourier Transformed Infrared Spectrophotometry (FT-IR), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric analysis (TGA), Field Emission Scanning Electron Microscopy (FE-SEM).

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