scholarly journals Competitive removal of PGMs from aqueous solutions via dendrimer modified magnetic nanoparticles

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Joyce T. Khutlane ◽  
Klaus R. Koch ◽  
Rehana Malgas-Enus
Keyword(s):  
Magnetic Nanoparticles ◽  
Aqueous Solutions ◽  
Modified Magnetic Nanoparticles

scholarly journals Removal of Organic Dyes from Aqueous Solutions with Surfactant-Modified Magnetic Nanoparticles

2014 ◽  
Vol 16 (2) ◽  
pp. 27-30 ◽  
Author(s):  
Katarzyna Wybieralska ◽  
Anna Wajda
Keyword(s):  
Surface Modification ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Aqueous Solutions ◽  
Organic Dyes ◽  
Iron Hydroxide ◽  
Colloidal Solutions ◽  
Spectrophotometric Methods ◽  
Production Water ◽  
Modified Magnetic Nanoparticles

Abstract The paper presents the results of studies on the possibility of using magnetic nanoparticles modified with selected hydrophobic surfactants for model post-production water purification. Colloidal solutions of iron hydroxide (III) and iron oxide (II and III) were obtained and their particles were subjected to surface modification using surfactants. Thus obtained magnetic fluids were used as active agents in the process of removing selected organic dyes from their aqueous solutions. The effectiveness of the modified compounds was analysed using spectrophotometric methods. It has been shown that the effectiveness of the process depends on the type of surfactant used to modify selected magnetic nanoparticles.

Effective Removal of Azo Dye Reactive Blue 222 from Aqueous Solutions Using Modified Magnetic Nanoparticles with Sodium Alginate/Hydrogen Peroxide

2018 ◽  
Vol 38 (s1) ◽  
pp. S205-S213 ◽  
Author(s):  
Reza Shokoohi ◽  
Zahra Torkshavand ◽  
Mohammad Molla Mahmoudi ◽  
Abbas Moradi Behgoo ◽  
Effat Ghaedrahmati ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Magnetic Nanoparticles ◽  
Aqueous Solutions ◽  
Sodium Alginate ◽  
Azo Dye ◽  
Effective Removal ◽  
Modified Magnetic Nanoparticles

Ionic liquid modified magnetic nanoparticles-graphene hybrid (Fe3O4@GO-IL) for the removal of ibuprofen and penicillin G from aqueous solutions

2020 ◽  
Vol 208 ◽  
pp. 355-366
Author(s):  
Bahareh Karimi ◽  
Leila Ma’mani ◽  
Abdulfattah Ahmad Amin ◽  
Hazhir Karimi ◽  
Hooshyar Hossini
Keyword(s):  
Ionic Liquid ◽  
Magnetic Nanoparticles ◽  
Aqueous Solutions ◽  
Penicillin G ◽  
Modified Magnetic Nanoparticles

Amino-silica coated magnetic nanoparticles modified with Ni(II)- metalloporphyrin for the selective removal of nitrate ions from water samples

2012 ◽  
Vol 16 (04) ◽  
pp. 390-395 ◽  
Author(s):  
Tahereh Poursaberi ◽  
Mostafa Hassanisadi ◽  
Maryam Shanehsaz
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Magnetic Nanoparticles ◽  
Aqueous Solutions ◽  
Contact Time ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ft Ir ◽  
Modified Magnetic Nanoparticles ◽  
Scanning Electron

A new magnetic nanoadsorbent was developed by treating Fe3O4 nanoparticles with 3-aminopropyltriethoxysilane and nickel(II) — metalloporphyrin, and applied to remove excessive nitrate from aqueous solutions. Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to characterize the synthesized nanoparticles. The effect of pH, contact time, sorbent dosage and some co-existing anions present in aqueous solutions was investigated. Regeneration of nitrate adsorbed material was possible with NaOH , the modified magnetic nanoparticles exhibited good reusability.

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