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

• Type: Article in International Scientific Journal
• Date: 2011

Authors

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

Journal

Title: Journal of Hazardous Materials

Vol. 190

Pages: 694-699

ISSN: 0304-3894

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 11 Citations

ISI Web of Science

Scopus - 12 Citations

Scientific classification

FOS: Natural sciences > Earth and related Environmental sciences

CORDIS: Natural sciences > Environmental science > Natural resources management ; Natural sciences > Environmental science > Water science

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6