Sorption of Pb2+ on Mg-Al-Fe Hydrotalcite-Like Compounds
2012 ◽
Vol 573-574
◽
pp. 86-91
Keyword(s):
Hydrotalcite-like compounds containing Mg2+, Al3+ and Fe3+ with a constant M2+/M3+ ratio but varying Al3+/Fe3+ ratios have been prepared. The effects of iron contents on the structural and sorption of Pb2+ by Mg-Al-Fe HTlc samples were investigated. The maximum sorption amounts were about 88-201 mg/g for Mg-Al-Fe HTlc samples. The sorption isotherm and kinetic processes can be described with Freundlich isotherm and pseudo first order kinetic model, respectively. The sorption amounts and rate increase with the increase of iron contents in HTlc samples. The sorption mechanism of Pb2+ on Mg-Al-Fe HTlcs may be the surface-induced precipitation and chemical binding adsorption.
2007 ◽
Vol 55
(1-2)
◽
pp. 209-216
◽
Keyword(s):
2011 ◽
Vol 396-398
◽
pp. 823-826
Keyword(s):
Keyword(s):
2020 ◽
Vol 17
(22)
◽
pp. 8377
2011 ◽
Vol 295-297
◽
pp. 1236-1239
1999 ◽
Vol 40
(1)
◽
pp. 153-160
◽
Keyword(s):
Keyword(s):