Utilization of Iron Ore Tailing for the Preparation of α-Fe2O3 nanoparticles

DOI

10.2991/icmea-17.2018.29How to use a DOI?

Keywords

iron ore tailing; preparation; nanoparticles

Abstract

The objective of this study was to recover the iron from the iron ore tailing and convert it into a value-added products like -Fe2O3 nanoparticles with photocatalytic properties. Iron was extracted from the iron ore tailing by using acid leaching method and the leaching parameters were discussed. When the amount and concentration of HCl, leaching reaction temperature and time were fixed at 21.4ml, 30%, 100�C and 1.5h, respectively, the iron recovery reached 99.63%. Mesoporous -Fe2O3 nanoparticles were successfully prepared by a facile precipitation method using the acid leaching solution as the iron source. The -Fe2O3 samples were characterized by XRD, SEM, N2 adsorption and UV-Vis spectroscopy. The crystallite size of -Fe2O3 was about 36nm and the specific surface area was 46.03m2/g. The mesoporous -Fe2O3 prepared from iron ore tailing displayed better photocatalytic activity for the degradation of methylene blue, which was similar to that of -Fe2O3 prepared from pure agent.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaodong Xu
AU  - Yanxi Deng
PY  - 2018/02
DA  - 2018/02
TI  - Utilization of Iron Ore Tailing for the Preparation of α-Fe2O3 nanoparticles
BT  - Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
PB  - Atlantis Press
SP  - 125
EP  - 128
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-17.2018.29
DO  - 10.2991/icmea-17.2018.29
ID  - Xu2018/02
ER  -