The removal of Basic Blue 3 from aqueous solutions by chitosan-based adsorbent: Batch studies

Crini, Grégorio; Gimbert, Frédéric; Robert, Capucine; Martel, Bernard; Adam, Olivier; Morin‐Crini, Nadia; Giorgi, François De; Badot, Pierre‐Marie

doi:10.1016/j.jhazmat.2007.08.025

Cited by 187 publications

(87 citation statements)

References 64 publications

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“…7(c), the adsorption process can be divided into two steps that are ascribed to the intra-particle diffusion stage and equilibrium stage because the step of adsorption on the external surface is fast and less obvious. As the first linear plot corresponding to the intra-particle diffusion stage does not cross the origin, some degree of boundary layer control exists, which further shows that the intra-particle diffusion is not the only rate-controlling step; the other processes may control the rate of adsorption (Crini et al 2008).…”

Section: Adsorption Kinetics Studiesmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Yan¹,

Lijuan²

2013

BioResources

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Spent mushroom substrate (SMS), a renewable bio-waste from the mushroom-growing industry, was used as an adsorbent to remove methylene blue (MB) from aqueous solution. SMS was characterized using scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). Adsorption experiments with the SMS adsorbent were performed based on various parameters, such as adsorbent dose, initial MB dye concentration, initial pH, contact time, and temperature. The Langmuir, Freundlich, and Temkin isotherm models were employed to interpret the adsorption behavior. The results indicated that the equilibrium data were perfectly represented by the Temkin isotherm. The maximum adsorption capacity of SMS reached 63.5 mg g -1 at 303 K. The kinetics studies indicated that the pseudo-second-order model best described the adsorption of MB on SMS. The activation energy of the adsorption was 5.64 kJ mol -1 . Thermodynamic parameters suggested that the adsorption was an exothermic and spontaneous physical process. The results imply that SMS is a potentially low-cost adsorbent for treating wastewater containing cationic dyes.

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Section: Adsorption Kinetics Studiesmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Yan¹,

Lijuan²

2013

BioResources

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“…Analysis of adsorption isotherm is important to describe how adsorbate molecules interact with the adsorbent surface and establish the appropriate correlation with the equilibrium curve (Crini et al, 2008;Daneshvar et al, 2014). Figure 10(a) and (b) shows the linear fitting of the experimental data to Freundlich adsorption isotherm model.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Adsorption of Congo red from aqueous solution onto shrimp shell powder

Zhou

Fan

et al. 2018

Adsorption Science & Technology

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Two novel adsorbents derived from shrimp shell were prepared and their adsorption performances on Congo red were investigated. The results suggested that treated shrimp shell powder exhibited a higher adsorption capacity than raw shrimp shell powder. The factors of initial concentration, solution pH, adsorption time, and temperature were investigated. The maximum adsorption capacity of treated shrimp shell powder calculated according to the Langmuir isotherm model was 288.2 mg/g, which is much higher than that of chitin. The adsorption behavior could be fitted well by the pseudo-second-order kinetic model. Intra-particle diffusion model was also used to study the adsorption process. The thermodynamic parameters indicated the spontaneous and endothermic nature of the adsorption. Shrimp shell powder exhibited enough advantages such as large adsorption capacity, low cost, simple processing methods and high specific gravity compared with chitin or chitosan. This work confirmed that the shrimp shell biosorbent had a potential to be applied in dye wastewater treatment area.

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“…However, the capacity decreased with the increasing amount of adsorbent when the adsorption capacity was expressed in mg adsorbed per gram of material. This can be attributed to overlapping or aggregation of adsorption sites, resulting in a decrease in total adsorbent surface area available to the dye and an increase in diffusion path length [38,39].…”

Section: Adsorption Studiesmentioning

confidence: 99%

Experimental Study to Remediate Acid Fuchsin Dye Using Laccase-Modified Zeolite from Aqueous Solutions

Kalkan

Nadaroğlu

Çelebi

et al. 2015

Pol. J. Environ. Stud.

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The removal of Basic Blue 3 from aqueous solutions by chitosan-based adsorbent: Batch studies

Cited by 187 publications

References 64 publications

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Adsorption of Congo red from aqueous solution onto shrimp shell powder

Experimental Study to Remediate Acid Fuchsin Dye Using Laccase-Modified Zeolite from Aqueous Solutions

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