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<p>Role of polyvinyl pyrrolidone as a capping agent in the synthesis of magnetite (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles</p>

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Title Statement <p>Role of polyvinyl pyrrolidone as a capping agent in the synthesis of magnetite (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles</p>
 
Added Entry - Uncontrolled Name Kumari, Sujata ; Amity University Haryana
Yadav, Neha ; Amity University Haryana
Ghosh, Debasree ; Amity University Haryana
Srivastava, Chandramohan ; Amity University Haryana
Majumder, Sudip ; Amity University Haryana
 
Uncontrolled Index Term Solid State Chemistry
Nanoparticles, Magnetite nanoparticles, Ferrites, Superparamagnetism, Co-precipitation, Iron oxide, Polyvinyl pyrrolidone
 
Summary, etc. <p>Uncapped magnetite (Fe<sub>3</sub>O<sub>4</sub>) and magnetite capped with polyvinyl pyrrolidone (PVP) (Fe<sub>3</sub>O<sub>4</sub>-PVP) have been synthesized by a rapid, cost effective aqueous precipitation method. The nanoparticles are characterized by powder X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and UV spectroscopy. The role of PVP as a capping agent in the synthesis of magnetite nanoparticles has been investigated. Thermal stability and surface charge of the nanoparticles have been characterized by thermogravimetric analysis, differential scanning calorimetry (DSC) and zeta potential measurements. Results suggest that PVP as a capping agent reduces the grain size, regularizes the shape, and increases the crystallinity of Fe<sub>3</sub>O<sub>4</sub> nanoparticles. Thermal stability and surface charge of Fe<sub>3</sub>O<sub>4</sub>-PVP nanoparticles are also significantly higher as compared to the uncapped Fe<sub>3</sub>O<sub>4</sub> nanoparticles. Magnetic characterization by vibrating sample magnetometry of both Fe<sub>3</sub>O<sub>4</sub> and Fe<sub>3</sub>O<sub>4</sub>-PVP nanoparticles indicates the superparamagnetic behavior of the nanoparticles.</p><p> </p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-19 14:05:15
 
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http://op.niscair.res.in/index.php/IJCA/article/view/21977
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 57, ##issue.no## 8-9 (2018): INDIAN JOURNAL OF CHEMISTRY- SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/21977/465468690
http://op.niscair.res.in/index.php/IJCA/article/download/21977/465468692
http://op.niscair.res.in/index.php/IJCA/article/download/21977/465468702
 
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