Synthesis, characterization, and metal-ion uptake studies of chelating resins derived from formaldehyde-condensed azodyes of aniline and 4,4?-diaminodiphenylmethane coupled with phenol/resorcinol

2000 ◽  
Vol 77 (14) ◽  
pp. 3128-3141 ◽  
Author(s):  
S. Samal ◽  
R. R. Das ◽  
N. K. Mohapatra ◽  
S. Acharya ◽  
R. K. Dey
Keyword(s):  
Metal Ion ◽  
Ion Uptake ◽  
Chelating Resins ◽  
Metal Ion Uptake ◽  
Uptake Studies

Metal ion uptake by ion-exchange/chelating resins modified with cyclohexene oxide and cyclohexene sulphide

2001 ◽  
Vol 37 (3) ◽  
pp. 559-564 ◽  
Author(s):  
Andrzej W Trochimczuk ◽  
Bożena N Kolarz ◽  
Dorota Jermakowicz-Bartkowiak
Keyword(s):  
Ion Exchange ◽  
Metal Ion ◽  
Ion Uptake ◽  
Cyclohexene Oxide ◽  
Chelating Resins ◽  
Metal Ion Uptake

Synthesis and metal ion uptake studies of chelating polyurethane resin containing donor atoms: Experimental optimization and temperature studies

2017 ◽  
Vol 95 (5) ◽  
pp. 944-953 ◽  
Author(s):  
Selvaraj Dinesh Kirupha ◽  
Ramasamy Narayanasamy ◽  
Manickam Sornalatha ◽  
Subramanian Sivanesan ◽  
Lingam Ravikumar
Keyword(s):  
Metal Ion ◽  
Ion Uptake ◽  
Experimental Optimization ◽  
Polyurethane Resin ◽  
Metal Ion Uptake ◽  
Uptake Studies

scholarly journals Comparison between Different Keratin-composed Biosorbents for the Removal of Heavy Metal Ions from Aqueous Solutions

2002 ◽  
Vol 20 (4) ◽  
pp. 393-416 ◽  
Author(s):  
Fawzi Banat ◽  
Sameer Al-Asheh ◽  
Dheaya‘ Al-Rousan
Keyword(s):  
Aqueous Solutions ◽  
Human Hair ◽  
Metal Ion ◽  
Ph Value ◽  
Freundlich Isotherm ◽  
Operating Conditions ◽  
Ion Uptake ◽  
Chicken Feathers ◽  
Initial Ph ◽  
Metal Ion Uptake

This study examined and compared the ability of chicken feathers, human hair and animal horns, as keratin-composed biosorbents, for the removal of Zn2+ and Cu2+ ions from single metal ion aqueous solutions under different operating conditions. The three biosorbents investigated in this study were all capable of adsorbing Zn2+ and Cu2+ ions from aqueous solutions. The biosorbent showing the highest uptake of Zn2+ and Cu2+ ions was animal horns. Chicken feathers showed a higher Cu2+ ion uptake and a lower Zn2+ ion compared to human hair. Increasing the initial concentration of Zn2+ or Cu2+ ions, or increasing the initial pH value, increased the metal ion uptake. Such uptake decreased when the temperature was raised from 25°C to 50°C for all adsorbent/metal ion combinations except for Zn2+ ion/human hair where the uptake increased with temperature. It was demonstrated that the addition of NaCl salt to the metal ion solution depressed the metal ion uptake. The Freundlich isotherm model was found to be applicable to the adsorption data for Cu2+ and Zn2+ ions.

Sign in / Sign up

Export Citation Format

Share Document