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Torabian A, Panahi HA, Nabi Bid Hendi GR, et al. Synthesis, modification and graft polymerization of magnetic nano particles for PAH removal in contaminated water. J Environ Health Sci Eng. 2014;12:105doi: 10.1186/2052-336X-12-105.
Torabian, A., Panahi, H. A., Nabi Bid Hendi, G. R., & Mehrdadi, N. (2014). Synthesis, modification and graft polymerization of magnetic nano particles for PAH removal in contaminated water. Journal of environmental health science & engineering, 12105. https://doi.org/10.1186/2052-336X-12-105
Torabian, Azadeh, et al. "Synthesis, modification and graft polymerization of magnetic nano particles for PAH removal in contaminated water." Journal of environmental health science & engineering vol. 12 (2014): 105. doi: https://doi.org/10.1186/2052-336X-12-105
Torabian A, Panahi HA, Nabi Bid Hendi GR, Mehrdadi N. Synthesis, modification and graft polymerization of magnetic nano particles for PAH removal in contaminated water. J Environ Health Sci Eng. 2014 Jul 15;12:105. doi: 10.1186/2052-336X-12-105. eCollection 2014. PMID: 25101170; PMCID: PMC4120718.
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J Environ Health Sci Eng. 2014 Jul 15;12:105. doi: 10.1186/2052-336X-12-105. eCollection 2014.

Synthesis, modification and graft polymerization of magnetic nano particles for PAH removal in contaminated water.

Journal of environmental health science & engineering

Azadeh Torabian, Homayoun Ahmad Panahi, Gholam Reza Nabi Bid Hendi, Naser Mehrdadi

Affiliations

  1. Department of Environmental Engineering, University of Tehran, Tehran, Iran ; Department of Chemistry, Islamic Azad University, Tehran, Iran.
  2. Department of Environmental Engineering, University of Tehran, Tehran, Iran.

PMID: 25101170 PMCID: PMC4120718 DOI: 10.1186/2052-336X-12-105

Abstract

Magnetic nanoparticles (MNPs) were modified with 3-Mercaptopropytrimethoxysiline (MPTMS) and grafted with allyl glycidyl ether for coupling with beta naphtol as a method to form a novel nano-adsorbent to remove two poly aromatic hydrocarbons (PAHs) from contaminated water. The modified MNPs were characterized by transmission electron microscopy, infrared spectroscopy and thermogravimetric analysis. Results showed that the modified MNPs enhanced the process of adsorption. Tests were done on the adsorption capacity of the two PAHs on grafted MNPs; factors applied to the tests were temperature, contact time, pH, salinity and initial concentration of PAHs. Results revealed that adsorption equilibrium was achieved in 10 min, and the maximum adsorption capacity was determined as 4.15 mg/g at pH = 7.0 and 20°C. The equilibrium adsorption data of the two PAHs by the modified MNPs were analyzed by Langmuir, Freundlich and Temkin models. Equilibrium adsorption data was determined from the Langmuir, Freundlich and Temkin constants from tests under conditions of pH = 7 and temperature 20°C. Analysis of the adsorption-desorption process indicated that the modified MNPs had a high level of stability and good reusability. Magnetic separation in these tests was fast and this shows that the modified MNPs have great potential to be used as a new adsorbent for the two PAHs removal from contaminated water in water treatment.

Keywords: Magnetic nano particles; Nano adsorbents; Poly aromatic hydrocarbons; Water contamination

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