Extremely fast and high Pb²⁺ removal capacity using a nanostructured hybrid material
López Marzo, Adaris María (Institut Català de Nanociència i Nanotecnologia)
Pons Picart, Josefina (Universitat Autònoma de Barcelona. Departament de Química)
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Date:	2014
Abstract:	Ultra-fast toxic metal removal using a hybrid and nanostructured vaterite-poly(ethyleneimine) (NV-PEI) is reported. Especially for Pb²⁺ , an extremely high and fast adsorption capacity without precedents is observed. Within a 3 min contact time (CT), 97-100% of Pb²⁺ contaminant in water samples at pH 6, with a large concentration range (from 2 to 1000 ppm) and using a dosage of 0. 5 g NV-PEI per L, has been removed. The maximum adsorption capacity (q ) calculated for a 1500 ppm Pb initial concentration was 2762 mg of Pb²⁺ per g NV-PEI. In addition to the excellent Pb removal, this material is cheap, easy to synthesize, biocompatible, and biodegradable, which makes it superior to others reported to date and an attractive alternative for the treatment of industrial wastewaters.
Grants:	Ministerio de Ciencia e Innovación MAT2011-25870 Agència de Gestió d'Ajuts Universitaris i de Recerca FI-2010
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Adsorption capacities ; Concentration ranges ; Industrial wastewaters ; Initial concentration ; Nano-structured ; Nanostructured hybrids ; Polyethyleneimine ; Removal capacity
Published in:	Journal of materials chemistry, Vol. 2, issue 23 (June 2014) , p. 8766-8772, ISSN 2050-7496

DOI: 10.1039/c4ta00985a

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
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