scholarly journals Kinetics, thermodynamics, equilibrium, surface modelling, and atomic absorption analysis of selective Cu(ii) removal from aqueous solutions and rivers water using silica-2-(pyridin-2-ylmethoxy)ethan-1-ol hybrid material

RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 611-625
Author(s):  
Said Tighadouini ◽  
Smaail Radi ◽  
Othmane Roby ◽  
Imad Hammoudan ◽  
Rafik Saddik ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Atomic Absorption ◽  
Hybrid Material ◽  
Atomic Absorption Analysis ◽  
Absorption Analysis ◽  
Surface Modelling ◽  
Equilibrium Surface ◽  
Removal Of Heavy Metals

The removal of heavy metals is attracting considerable attention due to their undesirable effects on the environment.

A novel environment-friendly hybrid material based on a modified silica gel with a bispyrazole derivative for the removal of ZnII, PbII, CdIIand CuIItraces from aqueous solutions

2017 ◽  
Vol 4 (11) ◽  
pp. 1821-1831 ◽  
Author(s):  
Smaail Radi ◽  
Mohamed El Massaoudi ◽  
Maryse Bacquet ◽  
Stéphanie Degoutin ◽  
N. N. Adarsh ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Silica Gel ◽  
Hybrid Material ◽  
Efficient Removal ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Environment Friendly ◽  
Novel Environment ◽  
Removal Of Heavy Metals

New surface-functionalized with bispyrazole receptor was designed for efficient removal of heavy metals. The architecture of host–guest on the surface was identified.

Removal of heavy metals from aqueous solutions using activated carbon prepared fromCicer arietinum

2010 ◽  
Vol 92 (8) ◽  
pp. 1447-1460 ◽  
Author(s):  
D.K.V. Ramana ◽  
K. Jamuna ◽  
B. Satyanarayana ◽  
B. Venkateswarlu ◽  
M. Madava Rao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Aqueous Solutions ◽  
Removal Of Heavy Metals

scholarly journals Study on Adsorption of Cu and Ba from Aqueous Solutions Using Nanoparticles of Origanum (OR) and Lavandula (LV)

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Ghadah M. Al-Senani ◽  
Foziah F. Al-Fawzan
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Free Energy ◽  
Aqueous Solutions ◽  
Thermodynamic Parameters ◽  
Solution Ph ◽  
Environment Friendly ◽  
Removal Of Heavy Metals ◽  
Equilibrium Data ◽  
Langmuir And Freundlich Models

Wild herbs (Origanum (OR) and Lavandula (LV)) were used as environment-friendly adsorbents in this study. The adsorbents were used for adsorption of Cu and Ba from water. The adsorption of heavy metals onto OR and LV was dependent on particle size, dose, and solution pH. The diameter of adsorbent particles was less than 282.8 nm. The adsorption follows second-order kinetics. Langmuir and Freundlich models have been applied to describe the equilibrium data, and the thermodynamic parameters, the Gibbs free energy, ∆G°, enthalpy, ∆H°, and entropy, ∆S°, have been determined. The positive value of ∆H° suggests that the adsorption of heavy metals by the wild herbs is endothermic. The negative values of ∆G° at all the studied temperatures indicate that the adsorption is a spontaneous process. It can be concluded that OR and LV are promising adsorbents for the removal of heavy metals from aqueous solutions over a range of concentrations.

Some applications of the Zeeman effect to atomic absorption analysis

1979 ◽  
Vol 30 (6) ◽  
pp. 708-710 ◽  
Author(s):  
E. L. Al'tman ◽  
A. A. Ganeev ◽  
Yu. I. Turkin ◽  
S. E. Sholupov
Keyword(s):  
Atomic Absorption ◽  
Zeeman Effect ◽  
Atomic Absorption Analysis ◽  
Absorption Analysis
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