Functionalized nano magnetic Fe3O4/SiO2 core-shell as efficient adsorbent for removal of Pb2+ from aqueous solutions

2017 ◽  
Vol 78 ◽  
pp. 166-171 ◽  
Author(s):  
A. Mokhtari Baghkumeh ◽  
H. Faghihian ◽  
Sh. Mokhtari
Keyword(s):  
Aqueous Solutions ◽  
Core Shell ◽  
Efficient Adsorbent ◽  
Magnetic Fe3o4

A PW12/Ag functionalized mesoporous silica-coated magnetic Fe3O4 core–shell composite as an efficient and recyclable photocatalyst

2021 ◽  
Author(s):  
Pan-Feng Wu ◽  
Qi Xue ◽  
Tian-Yu Wang ◽  
Shan-Jian Li ◽  
Gao-Peng Li ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Photocatalytic Performance ◽  
Core Shell ◽  
Deposition Method ◽  
Functionalized Mesoporous Silica ◽  
Recyclable Photocatalyst ◽  
Shell Composite ◽  
Magnetic Fe3o4 ◽  
Fe3o4 Core

The PW12 and Ag NP functionalized Fe3O4@SiO2@mSiO2-PW12/Ag photocatalyst was assembled via an in situ photoreduction deposition method, displaying highly efficient photocatalytic performance for photodegradation of MO and photoreduction of Cr2O72−.

Synthesis of Novel Core-Shell Structured Hydroxyapatite/Meso-Silica for Removal of Methylene Blue from Aqueous Solutions

2012 ◽  
Vol 463-464 ◽  
pp. 543-547 ◽  
Author(s):  
Cheng Feng Li ◽  
Xiao Lu Ge ◽  
Shu Guang Liu ◽  
Fei Yu Liu
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Low Cost ◽  
Nitrogen Adsorption ◽  
Precipitation Method ◽  
Core Shell ◽  
Adsorption Desorption

Core-shell structured hydroxyapatite (HA)/meso-silica was prepared and used as absorbance of methylene blue (MB). HA/meso-silica was synthesized in three steps: preparation of nano-sized HA by wet precipitation method, coating of dense silica and deposition of meso-silica shell on HA. As-received samples were characterized by Fourier transformed infare spectra, small angle X-ray diffraction, nitrogen adsorption-desorption isotherm and transmission electron microscopy. A wormhole framework mesostructure was found for HA/meso-silica. The specific surface area and pore volume were 128 m2•g-1 and 0.36 cm3•g-1, respectively. From the adsorption isotherm, HA/meso-silica with the great specific surface area exhibited a prominent adsorption capacity of MB (134.0 mg/g) in comparison with bare HA (0 mg/g). This study might shed light on surface modification of conventional low-cost adsorbents for removal of organic pollutants from aqueous solutions.

scholarly journals Obtaining of Fe3O4@C Core-Shell Nanoparticles as an Adsorbent of Tetracycline in Aqueous Solutions

2019 ◽  
Vol 22 (suppl 1) ◽  
Author(s):  
Vivian Soares ◽  
Ana Flávia dos Santos de Moraes ◽  
Janaína dos Santos ◽  
Marina Carla Grando ◽  
Cleuzir da Luz ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Adsorption behavior of samarium(III) from aqueous solutions onto PAN@SDS core-shell polymeric adsorbent

2015 ◽  
Vol 103 (6) ◽  
Author(s):  
Mamdoh R. Mahmoud ◽  
Mohamed A. Soliman ◽  
Karam F. Allan
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Aqueous Solutions ◽  
Sodium Dodecyl ◽  
Adsorption Behavior ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Polymeric Adsorbent ◽  
X Ray ◽  
Radiation Induced ◽  
Ft Ir

AbstractAdsorption behavior of samarium(III) radionuclides from aqueous solutions onto a novel polyacrylonitrile coated with sodium dodecyl sulfate (PAN@SDS), prepared by gamma radiation-induced polymerization, was studied in this work. The developed polymeric adsorbent was characterized by FT-IR, X-ray diffraction and N

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