Magnetite graphene oxide encapsulated in alginate beads for enhanced adsorption of Cr(VI) and As(V) from aqueous solutions: Role of crosslinking metal cations in pH control

2017 ◽  
Vol 307 ◽  
pp. 220-229 ◽  
Author(s):  
Huong Chi Vu ◽  
Amarendra Dhar Dwivedi ◽  
Thao Thanh Le ◽  
Sung-Hee Seo ◽  
Eun-Ji Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Metal Cations ◽  
Ph Control ◽  
Alginate Beads ◽  
Enhanced Adsorption

Effects of pH and electrolytes on the sheet-to-sheet aggregation mode of graphene oxide in aqueous solutions

2020 ◽  
Vol 7 (3) ◽  
pp. 984-995
Author(s):  
Huan Tang ◽  
Shuyan Zhang ◽  
Tinglin Huang ◽  
Fuyi Cui ◽  
Baoshan Xing
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Metal Cations ◽  
Effects Of Ph

Aggregation mode mediated by protonation and metal cations.

Colloidal properties and stability of UV-transformed graphene oxide in aqueous solutions: The role of disorder degree

2020 ◽  
Vol 382 ◽  
pp. 121097 ◽  
Author(s):  
Yang Gao ◽  
Xuemei Ren ◽  
Gang Song ◽  
Diyun Chen ◽  
Xiaodong Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Colloidal Properties ◽  
Disorder Degree

Carboxyl Groups do not Play the Major Role in Binding Metal Cations by Graphene Oxide

2021 ◽  
Author(s):  
Julia Shayimova ◽  
Rustem R. Amirov ◽  
Artem Iakunkov ◽  
Alexandr Talyzin ◽  
Ayrat Dimiev
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Nmr Relaxation ◽  
Metal Cations ◽  
Carboxyl Groups ◽  
Chemical Interactions ◽  
Graphene Oxides

In this study, we investigate chemical interactions of Mn2+ ions with graphene oxides, prepared by Hummers (HGO) and Brodie (BGO) methods in aqueous solutions by means of the NMR relaxation....

On the Structure of Lead(II) Complexes in Aqueous Solutions. I. Trinuclear Clusters

1995 ◽  
Vol 60 (4) ◽  
pp. 527-536 ◽  
Author(s):  
Martin Breza ◽  
Alena Manová
Keyword(s):  
Quantum Chemistry ◽  
Aqueous Solutions ◽  
Electronic Structures ◽  
Mndo Method ◽  
Model Systems ◽  
Trinuclear Clusters ◽  
The Stability ◽  
Semiempirical Mndo

Using semiempirical MNDO method of quantum chemistry the optimal geometries and corresponding electronic structures of [Pb3(OH)n]6-n model systems as well as of their hydrated [Pb3(OH)n(H2O)8-n]6-n analogues (n = 4, 5) are investigated. The most stable trinuclear lead(II) complexes present in aqueous solutions correspond to cyclo-(μ3-OH)(μ2-OH)3Pb32+, Pb(μ-OH)2Pb(μ-OH)2Pb2+, cyclo-(μ3-OH)2(μ2-OH)3Pb3+, Pb(OH)(μ-OH)2Pb(μ-OH)Pb(OH)+ and Pb(OH)(μ-OH)2Pb(μ-OH)2Pb+ systems. The key role of OH bridges (by vanishing direct Pb-Pb bonds) on the stability of individual isomers is discussed.

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