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

Journal of Environmental Health Science Engineering

Naser Mehrdadi¹  Gholam Reza Nabi Bid Hendi¹  Homayoun Ahmad Panahi¹  Azadeh Torabian² 

[1]Department of Environmental Engineering, University of Tehran, Tehran, Iran

[2]Department of Chemistry, Islamic Azad University, Tehran, Iran

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

Others  :  1164600
DOI  :  10.1186/2052-336X-12-105

 received in 2014-04-21, accepted in 2014-07-05,  发布年份 2014

【 摘 要 】

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.

【 授权许可】

   
2014 Torabian et al.; licensee BioMed Central Ltd.

【 图 表 】

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【 参考文献 】

• [1]Torabian A, Kazemian H, Seifi L, Nabi Bidhendi G, Azimi A, Ghadiri K: Removal of petroleum aromatic hydrocarbons by surfactant-modified natural zeolite: the effect of surfactant. CLEAN – Soil, Air, Water 2010, 38:77-83.
• [2]Martinez E, Gros M, Lacorte S, Barcel’ o D: Simplified procedures for the analysis of polycyclic aromatic hydrocarbons in water, sediments and mussels. J Chromatogr A 2004, 1047:181-188.
• [3]Boffetta P, Jourenkova N, Gustavsson P: Cancer risk from occupational and environmental exposure to polycyclic aromatic hydrocarbons. Cancer Causes Control 1997, 8(3):444-472.
• [4]Smith A, Bartelt-Hunt SL, Burns SE: Sorption and permeability of gasoline hydrocarbons in organobentonite porous media. J Hazard Mater 2003, 96:91-97.
• [5]Tiburtius ER, Peralta-Zamora P, Emmelb A: Treatment of gasoline-contaminated waters by advanced oxidation processes. J Hazard Mater 2005, 126:86-90.
• [6]Liao MH, Chen D: Fast and efficient adsorption/desorption of protein by a novel magnetic nano-adsorbent. Biotechnol Lett 2002, 24:1913-1917.
• [7]Kanchanamayoon W, Tatrahunl N: Determination of polycyclic aromatic hydrocarbons in water samples by solid phase extraction and gas chromatography. World J Chem 2008, 3:51-54.
• [8]Daifullah AAM, Girgis BS: Impact of surface characteristics of activated carbon on adsorption of BTEX. Physicochem Eng Asp 2003, 214:181-193.
• [9]Faraji M, Yamini Y, Saleh A, Rezaee M, Ghambarian M, Hassani R: A nanoparticle-based solid-phase extraction procedure followed by flow injection inductively coupled plasma-optical emission spectrometry to determine some heavy metal ions in water samples. Anal Chim Acta 2010, 659:172-177.
• [10]Huang C, Hu B: Silica-coated magnetic nanoparticles modified with γ-mercaptopropyltrimethoxysilane for fast and selective solid phase extraction of trace amounts of Cd, Cu, Hg, and Pb in environmental and biological samples prior to their determination by inductively coupled plasma mass spectrometry. Spectrochim Acta B At Spectrosc 2008, 63:437-444.
• [11]Macdonald J, Kelly J, Veinot J: Iron/iron oxide nanoparticle sequestration of catalytic metal impurities from aqueous media and organic reaction products. Langmuir 2007, 23:9543-9545.
• [12]Mayoa JT, Yavuza C, Yeanb S, Congb L, Shipleyb H, Yua W, Falknera J, Kanb A, Tomsonb M, Colvin VL: The effect of nanocrystalline magnetite size on arsenic removal. Sci Technol Adv Mater 2007, 8:71-75.
• [13]Uheida A, Alvarez G, Björkman E, Yu Z, Muhammed M: Fe3O4 and γ -Fe2O3 nanoparticles for the adsorption of Co2+ from aqueous solution. J Colloid Interface Sci 2005, 298:501-507.
• [14]Wang L, Yang Z, Gao J, Xu K, Gu H, Zhang B, Zhang X, Xu B: A biocompatible method of decorporation: bisphosphonate-modified magnetite nanoparticles to remove uranyl ions from blood. J Am Chem Soc 2006, 128:13358-13359.
• [15]Chang Y, Chen D: Adsorption kinetics and thermodynamics of acid dyes on a carboxymethylated chitosan-conjugated magnetic nano-adsorbent. Macromol Biosci 2005, 5:254-261.
• [16]Yang N, Zhu S, Zhang D, Xu S: Synthesis and properties of magnetic Fe3O4-activated carbon nanocomposite particles for dye removal. Mater Lett 2008, 62:645-647.
• [17]Goswamia R, Debb P, Thakurc R, Sarmaa KP, Basumallickd A: Removal of as(III) from aqueous solution using functionalized ultrafine iron oxide nanoparticles. Sep Sci Technol 2011, 46:1017-1022.
• [18]Li Z, Sun Q, Gao M: Preparation of water-soluble magnetite nanocrystals from hydrated ferric salts in 2-pyrrolidone: mechanism leading to Fe3O4. Angew Chem Int Ed 2004, 44:123-126.
• [19]Hao Y, Chen M, Hu Z: Effective removal of Cu (II) ions from aqueous solution by amino-functionalized magnetic nanoparticles. J Hazard Mater 2010, 184:392-399.
• [20]Lu A, Salabas E, Schuth F: Magnetic nanoparticles: synthesis, protection, functionalization and application. Angew Chem 2007, 46:1222-1244.
• [21]Shariati S, Faraji M, Yamini Y, Rajabi AA: Fe3O4 magnetic nanoparticles modified with sodium dodecyl sulfate for removal of safranin O dye from aqueous solutions. Desalination 2010, 270:160-165.
• [22]Jang JH, Lim HB: Characterization and analytical application of surface modified magnetic nanoparticles. Microchem J 2010, 94:148-158.
• [23]Park J, An K, Hwang Y, Park JG, Noh H, Kim J, Park JH, Hwang N, Hyeon T: Ultra-large-scale syntheses of monodisperse nanocrystals. Nat Mater 2004, 3:891-895.
• [24]Takafuji M, Ide S, Ihara H, Xu Z: Preparation of poly(1-vinylimidazole)-grafted magnetic nanoparticles and their application for removal of metal ions. Chem Mater 2004, 16:1977-1983.
• [25]Faraji M, Yamini Y, Tahmasebi E, Saleh A, Nourmohammadian F: Cetyltrimethylammonium bromide-coated magnetite nanoparticles as highly efficient adsorbent for rapid removal of reactive dyes from the textile companies’ wastewaters. JICS 2010, 7:130-S144.
• [26]He YP, Wang SQ, Li SR, Miao YM, Wu Z, Zou BS: Synthesis and characterization of functionalized silica-coated Fe3O4 superparamagnetic nanocrystals for biological applications. J Phys D 2005, 38:1342-1350.
• [27]Bach JG, Islam R, Lim KT, Seo SY, Kim JT: Encapsulation of Fe3O4 magnetic nanoparticles with poly(methyl methacrylate) via surface functionalized thiol-lactam initiated radical polymerizatio. Appl Surf Sci 2011, 258:2959-2966.