Sorption kinetics of diuron on volcanic ash derived soils

Cáceres-Jensen, Lizethly; Rodríguez-Becerra, Jorge; Parra-Rivero, Joselyn; Escudey, Mauricio; Barrientos, Lorena; Castro-Castillo, Vicente

doi:10.1016/j.jhazmat.2013.07.073

Cited by 73 publications

(60 citation statements)

References 40 publications

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“…10 shows the correspondent plots of the intraparticle Weber-Morris model. The plot for HEU is divided into two sections, before and after 30 minutes, some authors have found similar multilinear behavior [27,28], suggesting the influence of other mechanisms in addition to intraparticle diffusion, such as film diffusion. The first linear segment is related to film diffusion and the latter is the segment related to the intraparticle diffusion [26].…”

Section: Weber-morris Model Kinetic Data Was Analyzed Usingmentioning

confidence: 81%

The removal of caesium ions using supported clinoptilolite

Al-Joubori

Kontogiannis

Papadatos-Gigantes

et al. 2015

Journal of Hazardous Materials

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Section: Weber-morris Model Kinetic Data Was Analyzed Usingmentioning

confidence: 81%

The removal of caesium ions using supported clinoptilolite

Al-Joubori

Kontogiannis

Papadatos-Gigantes

et al. 2015

Journal of Hazardous Materials

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“…In other words, the pseudo second-order model is suitable to demonstrate the dependency of adsorption rate on the sorption capacity of a surface (Aharoni and Tompkins, 1970;Ho and Ofomaja, 2006;Valderrama et al, 2007;Cáceres-Jensen et al, 2013). The fitting of experimental data with adsorption kinetic models are provided in Fig.…”

Section: Adsorption Kinetics Studymentioning

confidence: 99%

Isotherm, Thermodynamic and Kinetic Studies of Selective CO2 Adsorption on Chemically Modified Carbon Surfaces

Adelodun

Ngila

Kim

et al. 2016

Aerosol Air Qual. Res.

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Detailed assessments of adsorption properties (isotherm, thermodynamics and kinetics) were carried out on chemically modified activated carbon (AC). Some pretreatment methods prior amination have been used to improve the CO 2 selective capture of AC in our previous works. Here, the inter-relationships among the adsorption properties were further investigated and reported. It was found that CO 2 molecules bind onto the heterogeneous surfaces of AC in a monolayer pattern as experimental data fit Freundlich isotherm rather than Langmuir. However, Redlich-Peterson, a 3-parameter model provided the best fit. The highest degree of precision of Chi-square analysis professed it as the most efficient error function for the isotherm study. Values of standard entropy showed to be the most significant thermodynamic limiting parameter in the adsorption process, as physisorption was found predominant for CO 2 collection at the interface. This observation was corroborated with temperature programmed desorption (TPD) analysis where ca. 86% of adsorbed CO 2 were desorbed below 500°C. The kinetic study indicated that CO 2 -AC interaction follows pseudo-second order while the higher R 2 of intraparticle diffusion over Elovich equation confirmed the deduction made from the thermodynamic study. Conclusively, the study of adsorption properties in this work provides useful information for designing proper adsorption reactor and subsequent regeneration of CO 2 -laden adsorbents at environmental levels.

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“…The pseudo-first order model (PFO), pseudo-second order model (PSO), Elovich equation, and intraparticle diffusion model were employed for analyzing the kinetics of the adsorption process [33][34][35][36][37][38][39][40][41][42].…”

Section: Theorymentioning

confidence: 99%

“…where q e and q t correspond to the amounts of solute adsorbed at equilibrium and time t (expressed in (mg·g -1 )), respectively, and k 1 (min -1 ) is a combination of adsorption (k a ) and desorption (k d ) constants [40][41][42][43].…”

Section: Pfo Modelmentioning

confidence: 99%