Hybrid porous phosphate heterostructures as adsorbents of Hg(II) and Ni(II) from industrial sewage

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

J. Jimenez-Jimenez (Autor) FCUP; M. Algarra (Autor) FCUP; E. Rodriguez-Castellon (Autor) FCUP; A. Jiménez-López (Autor) FCUP; J. C. G. Esteves da Silva (Autor) FCUP

Revista

Título: Journal of Hazardous Materials

Vol. 190

Páginas: 694-699

ISSN: 0304-3894

Editora: Elsevier

Indexação

ISI Web of Knowledge - 11 Citações

ISI Web of Science

Scopus - 12 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

CORDIS: Ciências Naturais > Ciências do ambiente > Gestão dos recursos naturais ; Ciências Naturais > Ciências do ambiente > Ciências da água

Outras Informações

ID Authenticus: P-002-QF1

DOI: 10.1016/j.jhazmat.2011.03.110

Abstract (EN): Porous phosphate heterostructures (PPH), functionalized with different ratios of aminopropyl and mercaptopropyl groups, labelled as N(x=5,25,50)-PPH and S(x=5,25,50)-PPH, respectively, were tested as adsorbents for Ni(II) and Hg(II) found in industrial sewage from electroplating processes and button battery recycling. X-ray diffraction was used to study the structures. The specific surface area of the pristine material (PPH) was 620 m(2) g(-1), whereas the specific surface areas of the modified mercaptopropyl (S(5)-PPH) and aminopropyl (N(5)-PPH) were 472 and 223 m(2) g(-1), respectively. The adsorption data were fitted to a Langmuir isotherm model. The S(5)-PPH material was saturated by 120 mmol Hg(II) per 100 g of material, whereas for Ni(II) adsorption, N(25)-PPH material displayed the highest adsorption with a saturation value of 43.5 mmol per 100 g. These results suggest that functionalized PPH materials may be promising toxic metal scavengers and that they may provide an alternative environmental technology.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6