TY - GEN
T1 - The effect of precipitation pH on structural properties of magnetite nanoparticles
AU - Dewi, R.
AU - Husain, H.
AU - Sulthonul, M.
AU - Pratapa, S.
N1 - Publisher Copyright:
© 2020 Author(s).
PY - 2020/9/3
Y1 - 2020/9/3
N2 - Magnetite (Fe3O4) nanoparticles has been successfully synthesized using the co-precipitation method with various pHs. The magnetites were derived from natural ironstone Kalimantan, Indonesia. The synthesis was carried out with 4 variations of precipitation pHs, i.e., 8.00; 9.06; 10.00; and 11.00. X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron Microscopy (HRTEM), and Particle Size Analyzer (PSA) were utilized to examined the crystal structure, micro and nanostructures, and particles size distribution, respectively. The XRD results revealed that the magnetite is the dominant phase of all samples and the single phase of magnetite can be achieved with the precipitation pH > 9.06. Moreover, the particle sizes of the magnetite nanoparticles are 11, 10 and 7 nm for 9.06, 10.00, and 11.00 precipitation pH, respectively. The SEM and HRTEM images show that the particle size of ironstone and magnetite precipitates is in micro and nanoscales. The PSA results show that the particle size distribution of the magnetite nanoparticles tend to decrease with the increasing level of pH. Meanwhile, the average particle size tend to decrease with the increasing of precipitation pH,+ from 153 nm (8.00), 315 nm (9.06), 190 nm (10.00), and 153 nm (11.00). HRTEM images show that particles of Fe3O4 is spherical in shape and tend to agglomerate.
AB - Magnetite (Fe3O4) nanoparticles has been successfully synthesized using the co-precipitation method with various pHs. The magnetites were derived from natural ironstone Kalimantan, Indonesia. The synthesis was carried out with 4 variations of precipitation pHs, i.e., 8.00; 9.06; 10.00; and 11.00. X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron Microscopy (HRTEM), and Particle Size Analyzer (PSA) were utilized to examined the crystal structure, micro and nanostructures, and particles size distribution, respectively. The XRD results revealed that the magnetite is the dominant phase of all samples and the single phase of magnetite can be achieved with the precipitation pH > 9.06. Moreover, the particle sizes of the magnetite nanoparticles are 11, 10 and 7 nm for 9.06, 10.00, and 11.00 precipitation pH, respectively. The SEM and HRTEM images show that the particle size of ironstone and magnetite precipitates is in micro and nanoscales. The PSA results show that the particle size distribution of the magnetite nanoparticles tend to decrease with the increasing level of pH. Meanwhile, the average particle size tend to decrease with the increasing of precipitation pH,+ from 153 nm (8.00), 315 nm (9.06), 190 nm (10.00), and 153 nm (11.00). HRTEM images show that particles of Fe3O4 is spherical in shape and tend to agglomerate.
KW - ironstone
KW - magnetite nanoparticles
KW - precipitation pH
KW - structural properties
UR - http://www.scopus.com/inward/record.url?scp=85091902272&partnerID=8YFLogxK
U2 - 10.1063/5.0015422
DO - 10.1063/5.0015422
M3 - Conference contribution
AN - SCOPUS:85091902272
T3 - AIP Conference Proceedings
BT - Proceedings of the 5th International Symposium on Frontier of Applied Physics, ISFAP 2019
A2 - Shiddiq, Muhandis
A2 - Hardiansyah, Andri
A2 - Putri, Witha Berlian Kesuma
A2 - Herbani, Yuliati
A2 - Kurniawan, Edi
A2 - Khaerudini, Deni
A2 - Nugraha, Ahmad
A2 - Syuhada, Syuhada
A2 - Fauzi, Hamzah
A2 - Rifai, Abdulloh
A2 - Suprayoga, Edi
A2 - Tetuko, Anggito
A2 - Sudiro, Toto
PB - American Institute of Physics Inc.
T2 - 5th International Symposium on Frontier of Applied Physics, ISFAP 2019
Y2 - 23 October 2019 through 24 October 2019
ER -