Bioadsorbents from algae residues for heavy metal ions adsorption: chemical modification, adsorption behaviour and mechanism

2020 ◽  
pp. 1-12
Author(s):  
Rongguo Li ◽  
Tingting Zhang ◽  
Haifeng Zhong ◽  
Weikang Song ◽  
You Zhou ◽  
...  
2014 ◽  
Vol 26 (15) ◽  
pp. 4901-4906 ◽  
Author(s):  
Bo Wang ◽  
Fan Zhang ◽  
Shengfu He ◽  
Fu Huang ◽  
Zhiyuan Peng

2021 ◽  
Vol 247 ◽  
pp. 01052
Author(s):  
Dmitry Boriskov ◽  
Sanya Efremova ◽  
Nadezhda Komarova ◽  
Elena Tikhomirova ◽  
Aleksey Bodrov

The paper studies various modifications of diatomite, aiming at creating sorbents for wastewater purification from heavy metal ions. Diatomite of the Akhmatovskoe deposit of the Penza region was considered as a raw material. The processes of physical and chemical modification of diatomite were investigated. Adsorption isotherms were constructed, quantitative characteristics of adsorption of copper ions on the surface of modified sorbents were obtained. A chemical modification (acidic and alkaline) is proposed, which results in an increased adsorption capacity for heavy metal ions. The applicability of diatomite for the purification of highly concentrated wastewater containing heavy metals is shown.


RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43873-43884 ◽  
Author(s):  
M. Ajmal ◽  
M. Siddiq ◽  
N. Aktas ◽  
N. Sahiner

Poly(methacrylic-co-acrylonitrile) (p(MAc-co-AN)) microgels were prepared and nitrile groups were converted to amidoxime groups by chemical modification.


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