Results 21 to 30 of about 335,817 (304)

Surface Charge Control of Quantum Dot Blinking [PDF]

open access: yes, 2016
A characteristic property of colloidal semiconductor nanocrystal quantum dots (QDs) is their emission intermittency. Although a unifying theory of QD photoprocesses remains elusive, the importance of charged states is clear.
Dick, Emma   +7 more
core   +3 more sources

Interaction between indomethacin and heavy metal ions in aqueous solution

open access: yesEuropean Journal of Pharmaceutical Sciences, 2001
The interaction between indomethacin anions and heavy metal ions, such as cadmium, zinc and copper(II) ions, was studied in aqueous solution by polarographic techniques. Indomethacin anions form complexes with these heavy metal ions: the complex formed with cadmium ions is sparingly soluble, while more soluble and also stronger complexes are formed ...
A, Fini, G, Feroci, G, Fazio
openaire   +2 more sources

The biosorption potential of waste biomass young fruit walnuts for lead ions: Kinetic and equilibrium study [PDF]

open access: yesHemijska Industrija, 2016
The biosorption potential of waste biomass young fruit walnuts (YFW) as a low-cost biosorbent, processed from liqueur industry, for Pb(II) ions from aqueous solution was explored.
Marković Dragana Z.   +3 more
doaj   +1 more source

Dynamics of Silver Nanoparticles in Aqueous Solution in the Presence of Metal Ions [PDF]

open access: yesAnalytical Chemistry, 2017
Using a combined UV-vis, DLS, and electrochemical approach, this work experimentally studies the physical origin of the observed colorimetric sensitivity of aqueous silver nanoparticles toward divalent metal ions. In the presence of Pb2+, AgNPs are slow to reversibly form agglomerates (the time scale of the reverse deagglomeration process is of the ...
Kamonwad Ngamchuea   +3 more
openaire   +2 more sources

Interactions between calcium phosphate and heavy metal ions in aqueous solution

open access: yesMATEC Web of Conferences, 2013
Synthetic and natural calcium phosphates were tested for removal metallic pollution in aqueous solution. Calcium phosphates with Ca/P ratio between 1,33 and 1,67 are fluently called apatite.
Fernane F., Boudia S., Saouli H.
doaj   +1 more source

Biosorption of Heavy Metal Ions from Aqueous Solution on Chinese Fir Bark Modified by Sodium Hypochlorite

open access: yesBioResources, 2015
The oxidation conditions and adsorption ability of Cu (II), Cd (II), and Pb (II) from an aqueous solution of sodium hypochlorite-oxidized fir bark powder were investigated.
Wenpeng Su   +3 more
doaj   +1 more source

Evaluation of an Adsorption–Desorption Process for Concentrating Heavy Metal Ions from Acidic Wastewaters

open access: yesAdsorption Science & Technology, 2009
Pine bark is a substrate which allows the attachment and de-activation of heavy metal ions, thereby cleansing the host solution. The present work was aimed at studying the removal of binary heavy metal ions from aqueous solutions using pine bark and to ...
Sergio Montes Sotomayor   +5 more
doaj   +1 more source

Sequestering Potential of Peach Nut Shells as an Efficient Sorbent for Sequestering Some Toxic Metal Ions from Aqueous Waste: A Kinetic and Thermodynamic Study [PDF]

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2016
The peach nut shells potential as a low cost biosorbent for separation of certain metal ions from aqueous media was investigated. The effects of different parameters such as pH, shaking speed, initial metal ions concentration and their contact time with ...
Muhammad Ashraf Shaheen   +5 more
doaj   +1 more source

Biowęgiel z pofermentacyjnej pozostałości kukurydzy hybrydowej - tani i wydajny sorbent metali ciężkich [PDF]

open access: yes, 2019
Biochar produced from fermentation residue of maize hybrid was used in untreated form as a sorbent for the removal of Cd(II), Pb(II) and Zn(II) from aqueous solution.
Motyka, Oldřich   +3 more
core   +1 more source

Adsorption Equilibrium for Heavy Metal Divalent Ions (Cu2+, Zn2+, and Cd2+) into Zirconium-Based Ferromagnetic Sorbent

open access: yesAdvances in Materials Science and Engineering, 2017
Zirconium-based ferromagnetic sorbent was fabricated by coprecipitation of Fe2+/Fe3+ salts in a zirconium solution and explored as a potential sorbent for removing the Cu2+, Zn2+, and Cd2+ from aqueous solution. The sorbent could easily be separated from
Agnes Yung Weng Lee   +5 more
doaj   +1 more source

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