Adsorption Kinetics and Isotherms of Ag(I) and Hg(II) onto Silica Gel with Functional Groups of Hydroxyl- or Amino-Terminated Polyamines

2011 ◽  
Vol 56 (5) ◽  
pp. 1982-1990 ◽  
Author(s):  
Rongjun Qu ◽  
Minghua Wang ◽  
Renfeng Song ◽  
Changmei Sun ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Functional Groups ◽  
Silica Gel ◽  
Adsorption Kinetics ◽  
Kinetics And Isotherms

Cellulose/Biochar Cryogels: A Study of Adsorption Kinetics and Isotherms

Langmuir ◽  
2021 ◽  
Author(s):  
Lídia Kunz Lazzari ◽  
Daniele Perondi ◽  
Ademir José Zattera ◽  
Ruth Marlene Campomanes Santana
Keyword(s):  
Adsorption Kinetics ◽  
Kinetics And Isotherms

Adsorption kinetics and isotherms of zeolite coatings directly crystallized on fibrous plates for heat pump applications

2013 ◽  
Vol 58 (1-2) ◽  
pp. 273-280 ◽  
Author(s):  
Aylin Atakan ◽  
Gerrit Fueldner ◽  
Gunther Munz ◽  
Stefan Henninger ◽  
Melkon Tatlier
Keyword(s):  
Heat Pump ◽  
Adsorption Kinetics ◽  
Kinetics And Isotherms ◽  
Zeolite Coatings

Physical properties and adsorption kinetics of silica-gel/water for adsorption chillers

2018 ◽  
Vol 137 ◽  
pp. 368-376 ◽  
Author(s):  
Ramy H. Mohammed ◽  
Osama Mesalhy ◽  
Mohamed L. Elsayed ◽  
Sichao Hou ◽  
Ming Su ◽  
...  
Keyword(s):  
Physical Properties ◽  
Silica Gel ◽  
Adsorption Kinetics ◽  
Kinetics Of

Studies relating to an electrochemically assisted coagulation for the removal of chromium from water using zinc anode

2011 ◽  
Vol 11 (2) ◽  
pp. 142-150 ◽  
Author(s):  
S. Vasudevan ◽  
J. Lakshmi
Keyword(s):  
Adsorption Kinetics ◽  
Current Density ◽  
Second Order ◽  
Rate Equations ◽  
Zinc Anode ◽  
Effects Of Ph ◽  
Equilibrium Data ◽  
Density Concentration ◽  
Chromium Adsorption ◽  
Kinetics And Isotherms

In this work, an electrochemically assisted coagulation for the removal of chromium from water has been studied using zinc as anode and galvanized iron as cathode. The effects of pH, current density, concentration of chromium, temperature, adsorption kinetics and isotherms on the removal of chromium were investigated. The results showed that the optimum removal efficiency of 96.5% was achieved at a current density of 0.2 A/dm2, at a pH of 7.0. First- and second-order rate equations, Elovich and intraparticle diffusion models were applied to study adsorption kinetics. The adsorption process follows second-order kinetics model with good correlation. An equilibrium isotherm was measured experimentally and the results were analyzed by the Langmuir, Freundlich and Dubinin-Redushkevich model using linearized correlation co-efficient. The Langmuir adsorption isotherm was found to fit the equilibrium data for chromium adsorption. Temperature studies showed that the adsorption was endothermic and spontaneous in nature.

scholarly journals Photocatalytic degradation of the herbicide imazapyr: do the initial degradation rates correlate with the adsorption kinetics and isotherms?

2018 ◽  
Vol 8 (4) ◽  
pp. 985-995 ◽  
Author(s):  
M. Faycal Atitar ◽  
Asmae Bouziani ◽  
Ralf Dillert ◽  
Mohamed El Azzouzi ◽  
Detlef W. Bahnemann
Keyword(s):  
Photocatalytic Degradation ◽  
Adsorption Kinetics ◽  
Probe Molecule ◽  
Degradation Rates ◽  
Langmuir Hinshelwood Mechanism ◽  
Induced Changes ◽  
Kinetics And Isotherms

The Langmuir–Hinshelwood mechanism applies to the photocatalytic degradation of imazapyr only when assuming the occurence of light-induced changes of the photocatalyst surface affecting the adsorption of the probe molecule.

Adsorption kinetics and isotherms of bioactive antioxidant quercetin onto amino-functionalized silica nanoparticles in aqueous ethanol solutions

2017 ◽  
Vol 41 (16) ◽  
pp. 8451-8458 ◽  
Author(s):  
Masoud Ghanimati ◽  
Morteza Jabbari ◽  
Ali Farajtabar ◽  
Sayyed Ahmad Nabavi-Amri
Keyword(s):  
Silica Nanoparticles ◽  
Rice Husk ◽  
Adsorption Kinetics ◽  
Aqueous Ethanol ◽  
Low Cost ◽  
Acid Leaching ◽  
Functionalized Silica ◽  
Different Temperatures ◽  
Kinetics And Isotherms ◽  
Functionalized Silica Nanoparticles

Nano-structural particles of silica were synthesized from low-cost rice husk by acid leaching and further annealing at different temperatures.

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