scholarly journals An Amberlite IRA-400 Cl− ion-exchange resin modified with Prosopis juliflora seeds as an efficient Pb2+ adsorbent: adsorption, kinetics, thermodynamics, and computational modeling studies by density functional theory

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4478-4488
Author(s):  
Sivaprakasam Anbazhagan ◽  
Venugopal Thiruvengadam ◽  
Anandhakumar Sukeri

We have demonstrated a high Pb2+ removal efficiency (73.45%) from wastewater using a Prosopis juliflora-seed-modified Amberlite IRA-400 Cl− ion-exchange resin (SMA resin).

1994 ◽  
Vol 25 (9-10) ◽  
pp. 1329-1353 ◽  
Author(s):  
A. Dobermann ◽  
H. Langner ◽  
H. Mutscher ◽  
J.E. Yang ◽  
E. O. Skogley ◽  
...  

Desalination ◽  
2013 ◽  
Vol 326 ◽  
pp. 125-134 ◽  
Author(s):  
Ali Akbar Hekmatzadeh ◽  
Ayoob Karimi-Jashni ◽  
Naser Talebbeydokhti ◽  
Bjørn Kløve

2015 ◽  
Vol 17 (44) ◽  
pp. 29949-29957 ◽  
Author(s):  
Likai Yan ◽  
Justin E. Elenewski ◽  
Wei Jiang ◽  
Hanning Chen

Anionic polaron migration in rutile TiO2 is modeled by the valence bond representation in conjunction with the constrained density functional theory.


2016 ◽  
Vol 132-133 ◽  
pp. 561-570 ◽  
Author(s):  
Guomin Yang ◽  
Ivars Neretnieks ◽  
Luis Moreno ◽  
Susanna Wold

2011 ◽  
Vol 239-242 ◽  
pp. 2293-2296 ◽  
Author(s):  
Guo Xiang Pan ◽  
Feng Cao ◽  
Jin Tian Yang ◽  
Zhe Ming Ni ◽  
Pei Song Tang ◽  
...  

The two-sheets model was proposed to investigate interlayer structure and properties of Mg/Al layered double hydroxides (LDHs) containing F-, Cl-, Br-, I- and OH- using density functional theory (DFT). The results show that four types of halogen anions in the interlayer of LDHs have the same configurations due to simple sphere structures of isolated anions. As the size of halide anions increasing, the interlayer spacing dc increase. Mulliken charge analysis illustrates that the host layers interact with the guest anions by the electrostatic interaction and hydrogen bonding, and the charge transfers from anions to layers. The frontier orbital of the host layer interacts with that of the guest anions, and the electron transfers from HOMO of anions to LUMO of the host layer. Moreover, the order in the absolute value of binding energy is: OH- >F- >Cl- >Br- >I-, that remains consistent with ion-exchange ability of LDHs reported.


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