scholarly journals Adsorption of Cu(ii), Zn(ii), and Pb(ii) from aqueous single and binary metal solutions by regenerated cellulose and sodium alginate chemically modified with polyethyleneimine

RSC Advances ◽  
2018 ◽  
Vol 8 (33) ◽  
pp. 18723-18733 ◽  
Author(s):  
Wei Zhan ◽  
Chuanhui Xu ◽  
Guangfu Qian ◽  
Guohuan Huang ◽  
Xiuzhen Tang ◽  
...  

Crosslinked cellulose/sodium alginate was modified with polyethyleneimine as an adsorbent (PEI-RCSA) for comparative and competitive adsorption of metal ions.

2020 ◽  
Vol 10 (3) ◽  
pp. 5516-5523

Manuscript discussed the role of different parameters for the metal ions removal from industrial waste water. The metal ions removal from waste water is essential to decrease the diseases and environmental hazards caused by heavy metal ions. The different parameters of adsorption including the effect of contact time, dose, pH, temperature, kinetics and Brunauer-Emmett-Teller analysis is discussed. This manuscript focuses on biosorption of metal ions, competitive adsorption of metal ions and ligand based adsorption of metal ions. This manuscript also focuses on the commercially available adsorbent used in the removal of metal ions efficiently including polymeric adsorbent and activated carbon.


2021 ◽  
Author(s):  
Tao Hu ◽  
Xiaoli Hu ◽  
Cheng Tang ◽  
Dan Liu

Abstract This paper describes the synthesis of a novel chelating material derived from cellulose, and its heavy metal ions adsorption behavior from aqueous solution. The first section of this paper reports the chemical grafting of cellulose, that aminoacetic acid groups were grafted into the cellulose, resulted a novel yet unreported modified cellulose derivative N,N-(dicarboxymethylaminoethyl, carboxymethyl) aminoethylamine carboxymethyl cellulose amide. This obtained adsorbent was characterized by elemental analysis, infrared spectroscopy (IR) and Solid State Nuclear Magnetic Resonance (SSNMR) 13 C NMR spectroscopy. In the second section, adsorption behaviors such as kinetic study, adsorption isotherms of the adsorbent for Cu 2+ and Pb 2+ single metal ions from aqueous solution, and adsorption capacity for Ba 2+ , Mg 2+ , Mn 2+ , Co 2+ , Zn 2+ , Pb 2+ , Ni 2+ and Cu 2+ , and the competitive adsorption of this adsorbent between ions were evaluated by ICP spectroscopy.


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