Adsorption of phosphate ions by collodion‐coated alumina

Aharoni, Chaim; Sideman, S.; Hoffer, Erica

doi:10.1002/jctb.503290703

Cited by 173 publications

(78 citation statements)

References 5 publications

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“…Basing on analysis of the Bangham plots (Aharoni et al 1979) it is possible to identify a sorption mechanism (see Supplementary material, Fig. S1).…”

Section: Resultsmentioning

confidence: 99%

Adsorption equilibrium and kinetics of selected phenoxyacid pesticides on activated carbon: effect of temperature

et al. 2016

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The temperature influence on equilibrium and kinetics of adsorption of 4-chlorophenoxyacetic and 3-bromophenoxypropionic acids from aqueous solutions on the Norit activated carbon was studied. The correlations between temperature and parameters characterizing adsorption process were found. Increase of rate of adsorption kinetics of phenoxy pesticides with temperature was observed. The rates of adsorption were best described and fitted by multi-exponential equation; simple approximate solution was obtained by using MOE equation (contribution of second order kinetics was always below 80 %). Intermediate quality of description and good correlation with temperature changes was attained for fractal-like MOE kinetics. Slightly worse results were obtained for rate coefficients estimated by MOE fitting. Model-independent adsorption half-times are proposed as the best single descriptor of the experimental kinetic data. Its temperature dependence is strongly correlated with rate coefficients.

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“…Basing on analysis of the Bangham plots (Aharoni et al 1979) it is possible to identify a sorption mechanism (see Supplementary material, Fig. S1).…”

Section: Resultsmentioning

confidence: 99%

Adsorption equilibrium and kinetics of selected phenoxyacid pesticides on activated carbon: effect of temperature

et al. 2016

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“…Bangham's equation (Aharoni et al, 1979) is represented as: 0 0 0 t C km log log log log(t) C q m 2.303V…”

Section: Bangham's Equationmentioning

confidence: 99%

Application of biowaste (waste generated in biodiesel plant) as an adsorbent for the removal of hazardous bye - methylene blue - from aqueous phase

Gottipati

Mishra

2010

Braz. J. Chem. Eng.

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-Solid waste (SW) from a biodiesel plant has been successfully used for the removal of the hazardous cationic water soluble dye -methylene blue (MB) -from an aqueous phase. Batch adsorption studies were carried out by monitoring the pH, amount of adsorbent, initial dye concentration and contact time. Attempts have also been made to monitor the adsorption process through Langmuir, Freundlich, Temkin and D-R adsorption isotherm models. Relevant thermodynamic parameters were calculated and it was found that the adsorption process was exothermic and feasible at low temperatures. The nature and randomness of the adsorption process was determined by calculating the thermodynamic parameters such as Gibbs free energy (∆G o ), change in entropy (∆S o ) and heat of adsorption (∆H o ). The kinetics of the adsorption indicates that the process is pseudo-second-order and also reveals the involvement of bulk diffusion and intraparticle diffusion mechanisms.

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“…It is found that the shaking temperature increased the value of α decreased while k o increased with the raise in temperature showing the adsorption of dye in pores of carbon is well controlled process [26,27]. Yaneva studied the experimental kinetic results were analyzed by series of rate/mass transfer equations.…”

Section: Elovich Modelmentioning

confidence: 99%

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

Alam¹,

Rehman²,

Amin³

et al. 2018

Bull. Chem. Soc. Eth.

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ABSTRACT. The Eucalyptus lenceolata wood was collected from Malakand division, Khyber Pakhtunkhwa Pakistan. Chemical activation of sample was conducted for surface efficiency. Batch studies were performed to address various experimental parameters like, contact time, temperature and adsorbent dosage for the removal of dye. For elemental analysis, surface morphology and for identification of different functional groups, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) techniques were applied, respectively. Removal of dye (Basic Green 5) was studied on raw and activated samples by kinetics adsorption at different temperature. BET adsorption isotherm was used to characterize the surface area of the sample. Under the conditions investigated, a higher carbonization temperature promoted development of porous structures. Intraparticle diffusion, Elovich and Bhangam models were used for adsorption kinetics studies. From adsorption kinetic data thermodynamic parameters like ΔH ≠ , ΔS ≠ and ΔE ≠ were determined. The results show that the adsorption is spontaneous process. The endothermic nature of adsorptive process is due to the positive value of enthalpy. The negative entropy shows that acids molecules on the surface of adsorbent take an oriented position. The results shows that all the models were best fitted for these data of adsorption.

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Adsorption of phosphate ions by collodion‐coated alumina

Cited by 173 publications

References 5 publications

Adsorption equilibrium and kinetics of selected phenoxyacid pesticides on activated carbon: effect of temperature

Adsorption equilibrium and kinetics of selected phenoxyacid pesticides on activated carbon: effect of temperature

Application of biowaste (waste generated in biodiesel plant) as an adsorbent for the removal of hazardous bye - methylene blue - from aqueous phase

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

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