scholarly journals Sonochemical Synthesis of the Magnetite Nanoparticles in Aqueous Solution

2007 ◽  
Vol 115 (1348) ◽  
pp. 867-872 ◽  
Author(s):  
Feng DANG ◽  
Kai KAMADA ◽  
Naoya ENOMOTO ◽  
Junichi HOJO ◽  
Keiji ENPUKU
Keyword(s):  
Aqueous Solution ◽  
Magnetite Nanoparticles ◽  
Sonochemical Synthesis

scholarly journals High Encapsulation Efficiency of Magnetite Nanoparticles in Hydrophobic Polymer Microcapsules using Microsuspension Conventional Radical Polymerization

2019 ◽  
Vol 35 (2) ◽  
pp. 516-522 ◽  
Author(s):  
Jittaya Sadchaiyaphum ◽  
Pongsathon Phapugrangkul ◽  
Preeyporn Chaiyasat ◽  
Amorn Chaiyasat
Keyword(s):  
Aqueous Solution ◽  
Oleic Acid ◽  
Radical Polymerization ◽  
Magnetite Nanoparticles ◽  
Driving Force ◽  
Encapsulation Efficiency ◽  
Polymer Particle ◽  
Polymer Shell ◽  
Hydrophobic Polymer ◽  
Co Precipitation

High encapsulation efficiency of magnetite nanoparticles (MNPs; Fe3O4) in microcapsules using PDVB as a hydrophobic polymer shell was successfully achieved by microsuspension conventional radical polymerization (ms CRP). MNPs were initially synthesized by co-precipitation of Fe2+/Fe3+ in a binary phase. During the nucleation of MNPs in alkaline aqueous solution existing oleic acid (OA), MNPs were coated with OA (MNPs-OA) before moving to the toluene phase with the addition of salt. At OA concentration of 0.3 wt%, most of the nucleated MNPs were hydrophobic and well dispersed in the toluene phase. Using DVB as a monomer for ms CRP, high encapsulation efficiency (92 %EE) of MNPs-OA was obtained, with low free polymer particle formation. By contrast, large amounts of free polymer particles were observed at low %EE (32%) of MNPs. The main driving force for high %EE was obtained by coating the surface of the MNPs by OA which increased hydrophobicity.

Removal of Ni(II), Cu(II), and Zn(II) ions from aqueous solution using Tetraselmis sp. biomass modified with silica coated magnetite nanoparticles

2017 ◽  
Vol 80 ◽  
pp. 203-213 ◽  
Author(s):  
Buhani Buhani ◽  
Rinawati Rinawati ◽  
Suharso Suharso ◽  
Dewa Putu Yuliasari ◽  
Suripto Dwi Yuwono
Keyword(s):  
Aqueous Solution ◽  
Magnetite Nanoparticles

Effective removal of phosphate from aqueous solution using humic acid coated magnetite nanoparticles

2017 ◽  
Vol 123 ◽  
pp. 353-360 ◽  
Author(s):  
Mamun Rashid ◽  
Nathaniel T. Price ◽  
Miguel Ángel Gracia Pinilla ◽  
Kevin E. O'Shea
Keyword(s):  
Aqueous Solution ◽  
Humic Acid ◽  
Magnetite Nanoparticles ◽  
Effective Removal

scholarly journals Magnetite Nanoparticles (MNPs) Used as Cadmium Metal Removal from the Aqueous Solution from Mill Scales Waste Sources

2020 ◽  
Vol 49 (4) ◽  
pp. 847-858
Author(s):  
Nur Asyikin Ahmad Nazri ◽  
Raba'ah Syahidah Azis ◽  
Muhammad Syazwan Mustaffa ◽  
Abdul Halim Shaari ◽  
Ismayadi Ismail ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetite Nanoparticles ◽  
Metal Removal ◽  
Cadmium Metal
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