Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition
Magnetite particles were successfully generated by hydrothermal synthesis using water at subcritical conditions. By changing the temperature and pressure at subcritical water conditions, the thermodynamics and transport properties of the water can be controlled, thus enabling to manage the way of cr...
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doaj-57f5347a5bcb4ea0bbbf61405d48304a2020-11-25T03:44:26ZengITB Journal PublisherJournal of Engineering and Technological Sciences2337-57792338-55022016-12-0148675377110.5614/j.eng.technol.sci.2016.48.6.8Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure ConditionSiti Machmudah0Wahyudiono1Hideki Kanda2Motonobu Goto3Department of Chemical Engineering, Sepuluh Nopember Institute of Technology, IndonesiaDepartment of Chemical Engineering, Nagoya University, JapanDepartment of Chemical Engineering, Nagoya University, JapanDepartment of Chemical Engineering, Nagoya University, JapanMagnetite particles were successfully generated by hydrothermal synthesis using water at subcritical conditions. By changing the temperature and pressure at subcritical water conditions, the thermodynamics and transport properties of the water can be controlled, thus enabling to manage the way of crystal formation, morphology, and particle size. In this work, the experiments were carried out at temperatures of 250 °C and 290 °C and a pressure of 10 MPa with a reactor made of SUS 316 in a batch system. The synthesized particles were dried in vacuum condition and characterized by SEM and XRD. The XRD patterns showed that magnetite particles were dominantly formed in the particle products with a black color. The results showed that the magnetite particles formed had diameters of around 60 nm in all experiments with irregular polyhedral shaped morphologies.http://journals.itb.ac.id/index.php/jets/article/view/2109/1894magnetitehydrothermalsubcriticalsynthesisparticles |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Siti Machmudah Wahyudiono Hideki Kanda Motonobu Goto |
spellingShingle |
Siti Machmudah Wahyudiono Hideki Kanda Motonobu Goto Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition Journal of Engineering and Technological Sciences magnetite hydrothermal subcritical synthesis particles |
author_facet |
Siti Machmudah Wahyudiono Hideki Kanda Motonobu Goto |
author_sort |
Siti Machmudah |
title |
Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition |
title_short |
Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition |
title_full |
Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition |
title_fullStr |
Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition |
title_full_unstemmed |
Synthesis of Polyhedral Magnetite Particles by Hydrothermal Process under High Pressure Condition |
title_sort |
synthesis of polyhedral magnetite particles by hydrothermal process under high pressure condition |
publisher |
ITB Journal Publisher |
series |
Journal of Engineering and Technological Sciences |
issn |
2337-5779 2338-5502 |
publishDate |
2016-12-01 |
description |
Magnetite particles were successfully generated by hydrothermal synthesis using water at subcritical conditions. By changing the temperature and pressure at subcritical water conditions, the thermodynamics and transport properties of the water can be controlled, thus enabling to manage the way of crystal formation, morphology, and particle size. In this work, the experiments were carried out at temperatures of 250 °C and 290 °C and a pressure of 10 MPa with a reactor made of SUS 316 in a batch system. The synthesized particles were dried in vacuum condition and characterized by SEM and XRD. The XRD patterns showed that magnetite particles were dominantly formed in the particle products with a black color. The results showed that the magnetite particles formed had diameters of around 60 nm in all experiments with irregular polyhedral shaped morphologies. |
topic |
magnetite hydrothermal subcritical synthesis particles |
url |
http://journals.itb.ac.id/index.php/jets/article/view/2109/1894 |
work_keys_str_mv |
AT sitimachmudah synthesisofpolyhedralmagnetiteparticlesbyhydrothermalprocessunderhighpressurecondition AT wahyudiono synthesisofpolyhedralmagnetiteparticlesbyhydrothermalprocessunderhighpressurecondition AT hidekikanda synthesisofpolyhedralmagnetiteparticlesbyhydrothermalprocessunderhighpressurecondition AT motonobugoto synthesisofpolyhedralmagnetiteparticlesbyhydrothermalprocessunderhighpressurecondition |
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1724515053417267200 |