Adsorptive removal of methylene blue as organic pollutant by marble dust as eco-friendly sorbent

Hamed, Mostafa M.; Ahmed, Ismail; Metwally, S.S.

doi:10.1016/j.jiec.2013.10.015

Cited by 91 publications

(30 citation statements)

References 52 publications

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“…Figure 3: EDX of (a) raw prickly pear seed cake and (b) optimal activated carbon. process of methylene blue was rapid at the beginning of the process due to the availability of active sites on the exterior surfaces, and after the saturation of those active sites, the methylene blue entered to the pores of the adsorbent with a slower rate to reach the equilibrium time [46]. e amount of methylene blue removed by the optimal adsorbent at the equilibrium time (180 min) was 260 mg•g −1 .…”

Section: Characterization Of the Optimal Activated Carbonmentioning

confidence: 99%

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

maguana

Elhadiri

Bouchdoug

et al. 2019

International Journal of Chemical Engineering

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In the present study, the experimental design method was used to optimize the preparation conditions of an activated carbon from prickly pear seed cake by phosphoric acid activation. The parameters studied include impregnation ratio, carbonization temperature, and carbonization time. The optimal conditions for the preparation of the activated carbon with high adsorption capacity for methylene blue were identified to be an impregnation ratio of 2.9, carbonization temperature of 541°C, and carbonization time of 88 min. The obtained activated carbon was characterized by SEM/EDX, FTIR, pHpzc, and its capacity to adsorb methylene blue. FTIR analysis and pHPZC showed the acidic character of the activated carbon surface. The adsorption capacity of the optimal activated carbon was found to be 260 mg·g−1 for methylene blue. The adsorption equilibrium of methylene blue was well explained by the pseudo-second-order model and Freundlich isotherm. Furthermore, the performance of the produced activated carbon was examined by the methyl orange removal.

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Section: Characterization Of the Optimal Activated Carbonmentioning

confidence: 99%

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

maguana

Elhadiri

Bouchdoug

et al. 2019

International Journal of Chemical Engineering

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“…Several methods such as adsorption, physical and chemical methods, biodegradation and photodegration have been used for the removal of dye materials from wastewater. Among the above technologies, adsorption is regarded as one of the most effective methods because of its simple design, non‐toxicity and low cost .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of graphene oxide/metal–organic frameworks hybrid materials for enhanced removal of Methylene blue in acidic and alkaline solutions

Zhao

Chen

Wei

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Dye wastewater is causing a serious problem to the environment and to human health. A considerable amount of colored wastewater is generated from many industries. Moreover, many dyes in the wastewater are believed to be toxic and even carcinogenic. Therefore, the removal of dyes from wastewater is necessary and urgent. RESULTS The adsorption kinetics, isotherms and intra‐particle diffusion model were determined from experimental data, and the results indicated that the pseudo‐second‐order kinetic model and the Langmuir adsorption isotherm matched well the adsorption of MB onto GO/MOFs. Thermodynamic parameters revealed that the adsorption of MB by GO/MOFs was spontaneous and exothermic. The adsorption capacity was greatly improved in acidic or alkaline aqueous solution. The maximum adsorption capacity of GO/MOFs reached 274 mg g‐1, higher than most previously reported adsorbents. Also, the adsorbent could be used at least five times after washing with ethanol. CONCLUSION A microwave‐assisted ball milling method was used successfully to synthesize Ni‐MOFs and GO/MOFs. Because of electrostatic interaction and acid–base interaction, both acidic and alkaline aqueous solutions were found to favor the adsorption of MB by GO/MOFs, this being different from previous reports. GO/MOFs also showed acceptable reusability after being regenerated by ethanol. All the results suggest that MOFs prepared by microwave‐assisted ball milling give the prospect of removal of MB from aqueous solution. © 2017 Society of Chemical Industry

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“…From the practical point of view, the adsorption is one of the most frequently applied methods to efficiently treat the wastewater effluents including organic pollutants because of its many remarkable advantages like high selectivity, simplicity of operation and low cost [13,14]. It can be noted that the most important factor in utilizing the adsorption process is to choose an appropriate adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Batch adsorptive removal of benzoic acid from aqueous solution onto modified natural vermiculite: Kinetic, isotherm and thermodynamic studies

Pouya

Abolghasemi

Esmaieli

et al. 2015

Journal of Industrial and Engineering Chemistry

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Adsorptive removal of methylene blue as organic pollutant by marble dust as eco-friendly sorbent

Cited by 91 publications

References 52 publications

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

Synthesis of graphene oxide/metal–organic frameworks hybrid materials for enhanced removal of Methylene blue in acidic and alkaline solutions

Batch adsorptive removal of benzoic acid from aqueous solution onto modified natural vermiculite: Kinetic, isotherm and thermodynamic studies

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