Removal of a cationic dye – Basic Red 12 – from aqueous solution by adsorption onto animal bone meal

Haddad, Mohammadine El; Mamouni, Rachid; Saffaj, Nabil; Lazar, S.

doi:10.1016/j.jaubas.2012.04.003

Cited by 54 publications

(42 citation statements)

References 34 publications

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“…The suspensions were shaken in a shaker (298 K) for two days and suspensions were centrifuged (3,600 rpm, 15 min) [43]. The value of pH ZPC is the point where the curve of ΔpH (pH f -pH i ) vs. pH i crosses the line equal to zero [44]. The final pH (pH f ) values of the supernatant liquid were determined and the zero point charge results were shown in Table 1.…”

Section: Determination Of Ph Zpcmentioning

confidence: 99%

“…Optimum experimental pH value was determined as 6 and TC molecules have negative and positive charge at this pH. When pH of the solution increases above pH ZPC , a negative charge is present on the surface of biocomposites [44]. The pH ZPC of PP, PP-Sc, PS, PS-Sc, and Sc has shown that a negative charge at roughly pH > 5.633, 5.495, 5.595, 5.416, and 5.338, respectively.…”

Section: Determination Of Ph Zpcmentioning

confidence: 99%

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Removal of tetracycline using new biocomposites from aqueous solutions

Erşan

2015

Desalination and Water Treatment

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A B S T R A C TThis study investigated the removal of tetracycline (TC) using polypropylene (PP), polystyrene (PS), Saccharomyces cerevisiae (Sc) yeast, and new types of sorbents such as polypropylene-S. cerevisiae (PP-Sc) and Polystyrene-S. cerevisiae (PS-Sc) biocomposites from aqueous solutions in a batch system. PP-Sc and PS-Sc are newly synthesized yeast immobilized polymers for the removal of TC. The experimental results showed that the maximum TC removal was obtained by using the PP-Sc biocomposite, which has a porous structure necessary for the adsorption process and live yeast is a good biosorbent that is necessary for the biosorption process. The experimental conditions were investigated as a function of pH (4-12), the TC amount (10-150 mg/L), the adsorbents amount (0.05-0.6 g/L), the temperature (25-55˚C), and the NaNO 3 amount (0.025-1 mg/L). The Freundlich and Langmuir adsorption isotherms were conducted to deduce the mechanism of the removal process and both of the results were compatible. The thermodynamic parameters for the removal process and the structure characteristics of PP-Sc, both before and after the TC removal, were determined. This study proved that the PP-Sc and PS-Sc biocomposites have different features than the original and can cause significant implications for environmental biotechnologies, in particular for the removal of TC.

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Section: Determination Of Ph Zpcmentioning

confidence: 99%

Section: Determination Of Ph Zpcmentioning

confidence: 99%

Removal of tetracycline using new biocomposites from aqueous solutions

Erşan

2015

Desalination and Water Treatment

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“…Various adsorbents have been utilized in dye removal from aqueous solutions viz; animal bone meal (El Haddad et al 2012), sugar beet pulp (Akar et al 2013), calcined eggshell (Slimani et al 2014), modified durian seed (Ahmad et al 2015), and oat hull (Banerjee et al 2016). The present study, however, presents a novel adsorbent that combines the reactive site of chitosan with the mesopores generated via thermal treatment on the endocarp of Irvingia gabonensis.…”

Section: Introductionmentioning

confidence: 99%

Liquid phase adsorptions of Rhodamine B dye onto raw and chitosan supported mesoporous adsorbents: isotherms and kinetics studies

2016

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Irvingia gabonensis endocarp waste was charred (DNc) and subsequently coated with chitosan (CCDNc). Physicochemical characteristics of the two adsorbents were established, while Fourier transform infrared (FTIR), Scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) surface area methods were further employed for characterization. Efficiencies of the prepared adsorbents in the uptake of Rhodamine B (RhB) from aqueous effluent were investigated and adsorption data were tested using four isotherms and four kinetics models. The BET surface areas of the prepared adsorbent were 0.0092 and 4.99 m 2 /g for DNc and CCDNc, respectively, and maximum adsorption was recorded at pH between 3 and 4, respectively. While monolayer adsorption dominates the uptake of RhB onto DNc, uptake of RhB onto CCDNc was onto heterogeneous surface. The maximum monolayer adsorption capacities (q max) obtained from the Langmuir equation are 52.90 and 217.39 mg/g for DNc and CCDNc, respectively. Pseudo second order and Elovich kinetic models well described the kinetics of the two adsorption processes. The mean sorption energy (E) calculated from the D-R model and desorption efficiencies suggests that while the uptake of RhB onto DNc was physical in nature, for RhB-CCDNc system chemisorption dominates.

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“…It was also observed at equilibrium time a decrease in amount of adsorption. This may be attributed to overlapping or aggregation of adsorption sites resulting in a decrease in total adsorbent surface area available to MB and as an increase in diffusion path length (El Haddad et al 2012). …”

Section: Characterization Of C-zmn Adsorbentmentioning

confidence: 99%

The potential use of activated carbon prepared from Ziziphus species for removing dyes from waste waters

Regti¹,

Laamari²,

Stiriba³

et al. 2017

Appl Water Sci

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In this study, the adsorption potential of activated carbon prepared from Ziziphus mauritiana nuts for the removal of methylene blue (MB) from aqueous solution has been investigated using batch mode experiments. The effects of some operating parameters on the removal dye such as, initial pH (2-12), temperature (298-328 K), initial MB concentration (20-100 mg L -1 ), and contact time (5-70 min) were investigated. Adsorption kinetic showed that the rate adsorption followed the pseudo-second-order kinetic model. Four adsorption isotherms models were applied to experimental equilibrium data (Langmuir, Freundlich, Redlich-Peterson, and Fritz-Schlunder) and the different constants were calculated using non-linear equations models. Fritz-Schlunder model was found the best one to describe the adsorption process which suggests that the adsorption of MB onto activated carbon derived from Ziziphus mauritiana is heterogeneous with a multilayer. Thermodynamic adsorption showed that the process was endothermic and spontaneous in nature.

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Removal of a cationic dye – Basic Red 12 – from aqueous solution by adsorption onto animal bone meal

Cited by 54 publications

References 34 publications

Removal of tetracycline using new biocomposites from aqueous solutions

Removal of tetracycline using new biocomposites from aqueous solutions

Liquid phase adsorptions of Rhodamine B dye onto raw and chitosan supported mesoporous adsorbents: isotherms and kinetics studies

The potential use of activated carbon prepared from Ziziphus species for removing dyes from waste waters

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