ACADSTAFF UGM
Severity: Warning
Message: fopen(/var/cpanel/php/sessions/ea-php73/PHPSESSID0120bd9d83c89f32112c73f453e0ca35): failed to open stream: No space left on device
Filename: drivers/Session_files_driver.php
Line Number: 157
Backtrace:
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 190
Function: library
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 153
Function: libraries
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 65
Function: initialize
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Base.php
Line: 55
Function: __construct
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Base.php
Line: 60
Function: __construct
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Controller.php
Line: 4
Function: require
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Modules.php
Line: 134
Function: include_once
File: /home1/ditlitluaracadst/public_html/acadstaff/application/core/MY_Controller.php
Line: 5
Function: spl_autoload_call
File: /home1/ditlitluaracadst/public_html/acadstaff/index.php
Line: 318
Function: require_once
Severity: Warning
Message: session_start(): Failed to read session data: user (path: /var/cpanel/php/sessions/ea-php73)
Filename: Session/Session.php
Line Number: 141
Backtrace:
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 190
Function: library
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 153
Function: libraries
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Loader.php
Line: 65
Function: initialize
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Base.php
Line: 55
Function: __construct
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Base.php
Line: 60
Function: __construct
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Controller.php
Line: 4
Function: require
File: /home1/ditlitluaracadst/public_html/acadstaff/application/third_party/MX/Modules.php
Line: 134
Function: include_once
File: /home1/ditlitluaracadst/public_html/acadstaff/application/core/MY_Controller.php
Line: 5
Function: spl_autoload_call
File: /home1/ditlitluaracadst/public_html/acadstaff/index.php
Line: 318
Function: require_once
| Title | : | Effect of Stabilizing Agent of Sodium Citrate and Polyethylene Glycol on Structure of Fe3O4 Nanoparticles |
| Author | : |
Prof. Drs. Roto, M.Eng, Ph.D. (1) Prof. Dra. Eko Sri Kunarti, M.Si., Ph.D. (3) Prof. Suherman, S.Si., M.Sc. Ph.D. (4) |
| Date | : | 24 2020 |
| Keyword | : | Magnetite nanoparticles, sodium citrate, polyethylene glycol Magnetite nanoparticles, sodium citrate, polyethylene glycol |
| Abstract | : | Magnetic nanomaterials are studied extensively because of their wide range of possible applications. Synthesis of Fe3O4 with citrate and polyethylene glycol (PEG) as stabilizing agents was carried out. In this study, the effect of media of water, sodium citrate and polyethylene glycol as stabilizing agents on the shape and size of Fe3O4 magnetite nanoparticles was investigated. The synthesis of Fe3O4, Fe3O4/citrate, and Fe3O4/PEG was carried out by the coprecipitation method at controlled pH. The products were characterized by infrared spectrophotometry, X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX). Qualitative test of magnetism was also carried out on the three materials. The results showed that Fe3O4 nanoparticles prepared with sodium citrate and PEG have a diameter of 12 and 10 nm, respectively. In the sodium citrate medium, it gives Fe3O4 colloidal nanoparticle with electrostatic stabilization mode, while in the PEG medium it shows steric stabilization mode. Magnetite produced in PEG medium has the homogeneous size and is much more stable than that obtained in citrate medium |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
|