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Reference type: Journal
Authors: Milja TE, Prathish KP, Prasada Rao T
Article Title: Synthesis of surface imprinted nanospheres for selective removal of uranium from simulants of Sambhar salt lake and ground water.
Publication date: 2011
Journal: Journal of Hazardous Materials
Volume: 188
Issue: (1-3)
Page numbers: 384-390.
DOI: 10.1016/j.jhazmat.2011.01.121
Alternative URL: http://www.sciencedirect.com/science/article/B6TGF-523M8KD-2/2/e4c5a0847c1584eaf83d488072371c4b

Abstract: Imprinted polymer nanospheres for uranium were prepared by complexing uranyl ion on to quinoline-8-ol functionalized 3-aminopropyltrimethoxysilane modified silica nanoparticles followed by surface imprinting with 4-VP (4-vinyl pyridine), HEMA (2-hydroxy ethyl methacrylate) and EGDMA (ethylene glycol dimethacrylate) as the functional monomers and cross linking agent respectively with AIBN (2,2'-azo-bis-isobutyronitrile) as initiator and 2-methoxyethanol as the porogen. Non-imprinted polymer material was also prepared under similar conditions omitting uranyl ion. The above materials were used for solid phase extraction of uranium. Recent realization that its chemical toxicity is dominant than radiation hazards makes decontamination a relevant topic for environmental point of view, particularly in the light of projected global thrust for uranium fuel based atomic power plants. The material offers high retention capacity of 97.1 μmol g-1 for 10 mg L-1 of uranium that does not require tedious grinding and sieving steps, is water compatible and works in the pH range of 5-7, making it ideal for possible use in decontamination of polluted natural water samples or front end effluents of nuclear power reactors
Template and target information: uranyl ion, UO22+
Author keywords: surface imprinting, Nanospheres, Quinoline-8-ol, solid phase extraction, uranium, Lake and ground waters


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