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Eco-friendly synthesis of magnetite (Fe3O4) nanoparticles with tunable size: Dielectric, magnetic, thermal and optical studies
Bahadur, Ali1; Saeed, Aamer1; Shoaib, Muhammad1; Iqbal, Shahid2; Bashir, Muhammad Imran3; Waqas, Muhammad4; Hussain, Muhammad Nasir1; Abbas, Nasir1
2017-09-01
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
Volume198Pages:229-235
Abstract

In this paper, a detailed study on dielectric, magnetic, thermal, and optical properties of citric acid modified ultrafine superparamagnetic magnetite (Fe3O4) nanoparticles (Cit-USPMNs) was conducted. Water dispersible Cit-USPMNs were synthesized by modified co-precipitation technique. Hydrazine (N2H4) and sodium hydroxide were used as precipitating agents. The size of Cit-USPMNs was tuned by changing the volume of added N2H4. Lemon juice; a source of citric acid was used as a stabilizing agent for this ferrofluid. Phase purity was obtained by annealing at 150 and 250 degrees C for 4 h. The X-ray diffraction (XRD) pattern was used to confirm the formation of pure magnetite nanoparticles (NPs). The size of Cit-USPMNs lies in the range of 11-15 nm, as calculated by Scherrer's formula which was confirmed by TEM images. The prepared Cit-USPMNs were studied for magnetic and dielectric properties by vibrating sample magnetometer (VSM) and four probe LCR meter respectively. The MH-loop shows that the magnetic NPs are superparamagnetic in nature. The dielectric behavior and tangent losses as a function of required frequency range were also studied. Optical properties were studied with the help of UV Vis spectrophotometer. Direct and indirect energy band gaps for Cit-USPMNs were calculated from the UV Vis spectrum. Size, shape, and surface morphology were tested by TEM image. Surface functionality of Cit-USPMNs and formation of the Fe-O bond was verified by FTIR spectroscopy. Thermal properties were studied by thermogravimetric analysis (TGA). (C) 2017 Elsevier B.V. All rights reserved.

KeywordCo-precipitation Ultrafine Superparamagnetic Fe3o4 Dielectric Magnetic Optical Thermal Magnetite
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.matchemphys.2017.05.061
Indexed BySCI
Language英语
WOS KeywordMaghemite Gamma-fe2o3 Nanoparticles ; Lead Pb2++ ; Mn3o4 ; Nanocrystallites ; Nanocomposites ; Decomposition ; Irradiation ; Performance ; Adsorption ; Removal
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000407408600028
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23167
Collection多相复杂系统国家重点实验室
Affiliation1.Quaid I Azam Univ, Dept Chem, Islamabad 45320, Pakistan
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
3.Quaid I Azam Univ, Dept Phys, Islamabad 45320, Pakistan
4.Chinese Acad Sci, Inst Proc Engn, Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Bahadur, Ali,Saeed, Aamer,Shoaib, Muhammad,et al. Eco-friendly synthesis of magnetite (Fe3O4) nanoparticles with tunable size: Dielectric, magnetic, thermal and optical studies[J]. MATERIALS CHEMISTRY AND PHYSICS,2017,198:229-235.
APA Bahadur, Ali.,Saeed, Aamer.,Shoaib, Muhammad.,Iqbal, Shahid.,Bashir, Muhammad Imran.,...&Abbas, Nasir.(2017).Eco-friendly synthesis of magnetite (Fe3O4) nanoparticles with tunable size: Dielectric, magnetic, thermal and optical studies.MATERIALS CHEMISTRY AND PHYSICS,198,229-235.
MLA Bahadur, Ali,et al."Eco-friendly synthesis of magnetite (Fe3O4) nanoparticles with tunable size: Dielectric, magnetic, thermal and optical studies".MATERIALS CHEMISTRY AND PHYSICS 198(2017):229-235.
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