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A study in the adsorption of Fe(2+) and NO(3)(-) on pine needles based hydrogels.

Abstract：

:Novel supports for use as cation and anion adsorbents were prepared from lignocellulosics using pine needles and their carboxymethylated forms by network/hydrogel formation with acrylamide and N,N-methylene bisacrylamide. The hydrogels thus prepared were further functionalized by partial alkaline hydrolysis with 0.5 N NaOH and were characterized by FTIR, SEM and nitrogen analysis. Adsorption of Fe(2+) on these hydrogels was carried as a function of time, temperature, pH and ionic strength. The hydrogel having the maximum adsorption capacity was loaded with Fe(2+) at the conditions those afforded maximum uptake and was used as novel anionic adsorbent for NO(3)(-). The water uptake capacities and biodegradability of the hydrogels before and after the ion loading was studied to evaluate the possible end-uses of these hydrogels as alternate materials in the removal of ionic species from water.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Chauhan GS,Chauhan S,Kumar S,Kumari A

doi

10.1016/j.biortech.2007.11.044

subject

Has Abstract

pub_date

2008-09-01 00:00:00

pages

6464-70

issue

14

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(07)00979-0

journal_volume

99

pub_type

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