Dye adsorbed on copolymer, possible specific sorbent for metal ions removal

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27354-27362 ◽  
Author(s):  
Simona Gabriela Muntean ◽  
Maria Elena Rădulescu-Grad ◽  
Paula Sfârloagă
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Dye Removal ◽  
Styrene Divinylbenzene ◽  
Direct Dye ◽  
Metal Ions Removal

The efficiency of styrene-divinylbenzene functionalized with trimethylamonium groups as sorbent for the direct dye removal from aqueous solutions was investigated.

scholarly journals Advanced material and approach for metal ions removal from aqueous solutions

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Petri A. Turhanen ◽  
Jouko J. Vepsäläinen ◽  
Sirpa Peräniemi
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Advanced Material ◽  
Metal Ions Removal

Thermodynamics Study of Removal of Heavy Metal by TiN-Nanotubes

2015 ◽  
Vol 14 (03) ◽  
pp. 1450024
Author(s):  
Leila Mahdavian
Keyword(s):  
Heavy Metal ◽  
Thermodynamic Properties ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Room Temperature ◽  
Basis Set ◽  
Surface Species ◽  
Computer Calculations ◽  
Gaussian Program ◽  
Metal Ions Removal

The ability of TiN -nanotube to remove lead ( Pb ( II )) and arsenic ( As ( III )) ions from aqueous solutions is investigated. The thermodynamics properties of Pb ( II ) and As ( III ) ions passing through TiN -nanotubes ( TiN - NTs ) is calculated in basis set (B3LYP/6-31G**) DFT-IR method by Gaussian program package. The results showed, Pb ( II ) and As ( III ) passing through had low potential in middle nanotubes, and are trapped in this place. The thermodynamic properties showed; the passing through are spontaneous and favorable because ΔGele (MJ/mol) is negative for them. The goal of this study is the detection of surface species of TiN - NTs for metal ions removal by using computer calculations. The structural and thermodynamic properties studied ions absorption on TiN - NTs at room temperature.

scholarly journals Heavy metal ions removal from aqueous solution by xanthate-modified cross-linked magnetic chitosan/poly(vinyl alcohol) particles

RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 27992-28000 ◽  
Author(s):  
Long Lv ◽  
Nan Chen ◽  
Chuanping Feng ◽  
Jing Zhang ◽  
Miao Li
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Vinyl Alcohol ◽  
Heavy Metal Ions ◽  
Poly Vinyl Alcohol ◽  
Magnetic Chitosan ◽  
Heavy Metal Ions Removal ◽  
Metal Ions Removal

Xanthate-modified cross-linked magnetic chitosan/poly(vinyl alcohol) particles (XCMCP) were synthesized and applied to remove Pb(ii) and Cu(ii) ions from aqueous solutions.

scholarly journals DNA-Modified Polysulphone Microspheres for Endocrine Disruptors and Heavy Metal Ions Removal

2005 ◽  
Vol 23 (5) ◽  
pp. 387-398 ◽  
Author(s):  
Changsheng Zhao ◽  
Ling Shi ◽  
Xingyi Xie ◽  
Shudong Sun ◽  
Xiangdong Liu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Acridine Orange ◽  
Endocrine Disruptors ◽  
Hydrophobic Interaction ◽  
Heavy Metal Ions ◽  
Heavy Metal Ions Removal ◽  
Potential Use ◽  
Metal Ions Removal

Porous polysulphone (PSf) microspheres were modified by blending DNA into them and immobilizing DNA onto their surfaces. The DNA-modified microspheres, which were stable in water, were then used to remove endocrine disruptors and heavy metal ions from their aqueous solutions. Such microspheres could effectively accumulate pollutant compounds and endocrine disruptors, such as ethidium bromide, Acridine Orange, biphenyl, dibenzofuran and dibenzo- p-dioxin from their aqueous solutions. PSf microspheres without DNA also accumulated and removed endocrine disruptors due to their porosity and the hydrophobic interaction between the endocrine disruptors and PSf. Endocrine disruptors with and without a planar structure were effectively accumulated and removed by the DNA-modified PSf microspheres. In addition, PSf microspheres were found to be capable of selectively removing heavy metal ions such as Zn2+, Cu2+, Mg2+, Cd2+ and Ag+ from their aqueous solutions. These results show that DNA can be used to modify PSf microspheres, with the DNA-modified microspheres having a potential use in environmental applications.

Sign in / Sign up

Export Citation Format

Share Document