Abstract
The conventional synthesis of highly crystalline metal oxide nanoparticles requires either a reaction temperature of more than 300 °C or very high pressure, thus making their production economically infeasible. Here we report a simple aqueous-phase strategy for the synthesis of single-crystal metal oxide nanoparticles. Highly crystalline Fe3O4 and Mn3O4 nanoparticles were synthesized via the heating of an aqueous solution containing a metal precursor, branched polyethyleneimine (BPEI), and hexylamine at 95 °C for 3 h. The synthesized nanoparticles were characterized by a single crystal structure and good crystallinity. In this synthesis method, BPEI acts as the major capping agent for the formation of nano-sized particles and hexylamine acts as a weak base increasing the pH of the reaction solution, thus allowing the sol-gel reaction to form metal oxide nanoparticles. The synthesized Fe3O4 nanoparticles could be used as an efficient adsorbent for iodine removal from aqueous solutions using electrostatic attraction.
Original language | English |
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Pages (from-to) | 1847-1853 |
Number of pages | 7 |
Journal | Science of Advanced Materials |
Volume | 9 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2017 Oct 1 |
Bibliographical note
Funding Information:funded by the Korean government (MSIP) (NRF-2015R1C1A1A01054109, NRF-2016R1E1A2A01939795, and NRF-2016M3D1A1021140).
Publisher Copyright:
© 2017 by American Scientific Publishers.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
Keywords
- Aqueous-Phase Synthesis
- Iodine Removing
- Iron Oxide
- Manganese Oxide
- Nanoparticle
ASJC Scopus subject areas
- General Materials Science