Adsorption of divalent metal ions from aqueous solutions using graphene oxide

2013 ◽  
Vol 42 (16) ◽  
pp. 5682 ◽  
Author(s):  
Rafal Sitko ◽  
Edyta Turek ◽  
Beata Zawisza ◽  
Ewa Malicka ◽  
Ewa Talik ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions

scholarly journals Plasmonic Sensing of Aqueous-Divalent Metal Ions by Biogenic Gold Nanoparticles

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Luisa E. Silva-De Hoyos ◽  
Victor Sánchez-Mendieta ◽  
Alfredo R. Vilchis-Nestor ◽  
Miguel A. Camacho-López ◽  
Jésica Trujillo-Reyes ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Plasmon Resonance ◽  
Chemical Interaction ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Colloidal Solutions ◽  
Transmission Electron ◽  
Vis Spectroscopy

The chemical interaction between biogenic gold nanoparticles (AuNPs) and several metal (II) ions can be regarded as a practical, twofold, colorimetric, and plasmon resonance sensing method for the recognition of some divalent metal ions in aqueous solutions. The green synthesized AuNPs, using Camellia sinensis as a reducing agent, were characterized by a surface plasmon resonance (SPR) using UV-Vis spectroscopy, infrared spectroscopy, and transmission electron microscopy. The AuNP colloidal solutions obtained have a pink-reddish color with SPRs centered between 529 and 536 nm. AuNPs with spherical, triangular, and hexagonal shapes were found by TEM analyses. Despite their divergent morphologies, these AuNPs can be employed as colorimetric and plasmon resonance sensors for detection of Ca2+, Sr2+, Cu2+, and Zn2+, primarily, in aqueous solutions. Sensibility studies based on molar concentrations were also performed for these metal ions. Furthermore, solid biogenic AuNPs/cellulosic biocomposites were prepared with the aim of developing portable, fast, and dependable colorimetric sensors; nevertheless, these biocomposites resulted to be good adsorbent materials of metal ions.

Graphene oxide/cellulose membranes in adsorption of divalent metal ions

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96595-96605 ◽  
Author(s):  
Rafal Sitko ◽  
Marcin Musielak ◽  
Beata Zawisza ◽  
Ewa Talik ◽  
Anna Gagor
Keyword(s):  
Graphene Oxide ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cellulose Membranes ◽  
Cadmium And Lead

In this paper, graphene oxide/cellulose membranes were prepared in order to perform effective adsorption of heavy metal ions: cobalt, nickel, copper, zinc, cadmium and lead.

Structure and properties of graphene oxide/cellulose hybrid fibers via divalent metal ions treatment

Cellulose ◽  
2017 ◽  
Vol 25 (1) ◽  
pp. 517-525 ◽  
Author(s):  
Jisu Ryu ◽  
Jin Seong Lim ◽  
Seokhoon Ahn ◽  
Seong Mu Jo ◽  
Frank K. Ko ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Metal Ions ◽  
Divalent Metal ◽  
Structure And Properties ◽  
Divalent Metal Ions ◽  
Hybrid Fibers

Crystal structures with infinite chains based on antimony tartrate dimers

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Xiqu Wang ◽  
Allan J. Jacobson
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Single Crystal ◽  
Crystal Structures ◽  
Crystal Form ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Complex Metal ◽  
Metal Nitrates ◽  
Tartar Emetic

Abstract Seven complex metal antimony tartrates have been synthesized in single crystal form by slowly evaporating aqueous solutions of potassium antimony tartrate (tartar emetic) and divalent metal nitrates or perchlorates. Crystal structures of these compounds all contain infinite chains formed by linking antimony tartrate dimers with divalent metal ions. While infinite chains of antimony tartrate dimers bridged by single Zn2+ ions or by double Mg2+ ions were reported previously, new types of chains with alternating single and double bridging cations are observed in this work.

scholarly journals Equilibrium Studies of Complexes betweenN-Acetylcysteine and Divalent Metal Ions in Aqueous Solutions

2014 ◽  
Vol 59 (5) ◽  
pp. 1661-1666 ◽  
Author(s):  
Shella Permatasari Santoso ◽  
Ivon Kusmijo Chandra ◽  
Felycia Edi Soetaredjo ◽  
Artik Elisa Angkawijaya ◽  
Yi-Hsu Ju
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Equilibrium Studies

An economically viable method for the removal of selected divalent metal ions from aqueous solutions using activated rice husk

2010 ◽  
Vol 75 (1) ◽  
pp. 149-155 ◽  
Author(s):  
Mubeena Akhtar ◽  
Shahid Iqbal ◽  
Abida Kausar ◽  
M.I. Bhanger ◽  
Muhammad Ashraf Shaheen
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Rice Husk ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Viable Method

scholarly journals A New Strategy To Stabilize Oxytocin in Aqueous Solutions: II. Suppression of Cysteine-Mediated Intermolecular Reactions by a Combination of Divalent Metal Ions and Citrate

2012 ◽  
Vol 9 (3) ◽  
pp. 554-562 ◽  
Author(s):  
Christina Avanti ◽  
Hjalmar P. Permentier ◽  
Annie van Dam ◽  
Robert Poole ◽  
Wim Jiskoot ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
New Strategy ◽  
Intermolecular Reactions
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