scholarly journals Accessing the potential of Lonchocarpus laxiflorus roots (LLR) plant biomass to remove Cadmium (II) ions from aqueous solutions: Equilibrium and kinetic studies

2015 ◽  
Vol 9 (5) ◽  
pp. 105-112 ◽  
Author(s):  
H Santuraki A ◽  
A Muazu A
Keyword(s):  
Aqueous Solutions ◽  
Plant Biomass ◽  
Kinetic Studies

Removal of arsenic(III) from aqueous solutions using fresh and immobilized plant biomass

2005 ◽  
Vol 39 (13) ◽  
pp. 2815-2826 ◽  
Author(s):  
C.T. Kamala ◽  
K.H. Chu ◽  
N.S. Chary ◽  
P.K. Pandey ◽  
S.L. Ramesh ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Plant Biomass ◽  
Removal Of Arsenic

scholarly journals Equilibrium, Kinetic, and Thermodynamic Studies of Anionic Dyes Adsorption on Corn Stalks Modified by Cetylpyridinium Bromide

2018 ◽  
Vol 3 (1) ◽  
pp. 4 ◽  
Author(s):  
Liudmyla Soldatkina ◽  
Marianna Zavrichko
Keyword(s):  
Experimental Data ◽  
Aqueous Solutions ◽  
Cationic Surfactant ◽  
Kinetic Studies ◽  
Batch Adsorption ◽  
Cetylpyridinium Bromide ◽  
Anionic Dyes ◽  
Pseudo Second Order ◽  
Dyes Adsorption

Corn stalks (CS) were modified by a cationic surfactant, cetylpyridinium bromide (CPB), and used as an adsorbent (CS-CP) to remove anionic dyes [Acid Red (AR) and Acid Orange (AO)] from aqueous solutions. The FTIR analysis and the obtained calculations based on the determination of the adsorption capacity of CS towards CPB confirmed that the cationic surfactant had been adsorbed on the surface of corn stalks. Adsorption of the anionic dyes on modified corn stalks was investigated in a series of batch adsorption experiments at 303–328 K. The adsorption data were analyzed using Langmuir, Freundlich, and Temkin models. The Langmuir model was found to be more suitable for the experimental data of the anionic dyes on CS-CP than other adsorption models. Kinetic studies revealed that the pseudo-second order model showed the best fit to the experimental data. The thermodynamic parameters indicated that the adsorption process was spontaneous and exothermic. Mechanisms involving ion exchange and chemisorption might be responsible for the uptake of the anionic dyes on CS-CP. Obtained results imply that CS-CP could be applied as an effective adsorbent to remove anionic dyes from aqueous solutions.

Removal of chromium (VI) from aqueous solutions using Diospyros discolor seed activated with nitric acid: isotherm and kinetic studies

2019 ◽  
Vol 79 (6) ◽  
pp. 1214-1221 ◽  
Author(s):  
Dian Arrisujaya ◽  
Nina Ariesta ◽  
Mamay Maslahat
Keyword(s):  
Nitric Acid ◽  
Aqueous Solutions ◽  
Kinetic Studies ◽  
Adsorption Efficiency ◽  
Batch Experiments ◽  
Adsorption Models ◽  
Chromium Vi ◽  
Optimum Ph ◽  
Scanning Electron ◽  
Analyze Data

Diospyros discolor seed activated with nitric acid was investigated for removing Cr(VI) from aqueous solutions. Batch experiments were used to determine the adsorption efficiency, effect of pH, adsorption isotherm, and kinetics. Langmuir and Freundlich adsorption models were used to analyze data of Cr(VI) uptake. Fourier transform infrared spectroscopy was used to investigate the functional groups and surface morphology was checked using a scanning electron microscope, coupled with energy dispersive spectroscopy. The optimum pH in Cr(VI) uptake was 3.5 and the maximum adsorption efficiency reached 100% at 60 min.

Polythionine grafted onto magnetic SBA-15 for the removal of cadmium ions from aqueous solutions: isothermal and kinetic studies

2019 ◽  
Vol 43 (14) ◽  
pp. 5581-5591 ◽  
Author(s):  
Ali Mehdinia ◽  
Hossein Mehrabi ◽  
Ali Jabbari
Keyword(s):  
Aqueous Solutions ◽  
Kinetic Studies ◽  
Cadmium Ions

Magnetic SBA-15 coated with polythionine was synthesized via the grafting method and used for the adsorption of Cd2+ ions from aqueous solutions.

Equilibrium and kinetic studies on removal of Cu2+ and Cr3+ from aqueous solutions using a chelating resin

2011 ◽  
Vol 172 (1) ◽  
pp. 277-286 ◽  
Author(s):  
Licínio M. Gando-Ferreira ◽  
Inês S. Romão ◽  
Margarida J. Quina
Keyword(s):  
Aqueous Solutions ◽  
Kinetic Studies ◽  
Chelating Resin
Sign in / Sign up

Export Citation Format

Share Document