Kinetics and equilibrium studies on removal of methylene blue and methyl orange by adsorption onto activated carbon prepared from date pits-A comparative study

Mahmoudi, Khaled; Hosni, Khaled; Hamdi, Noureddine; Srasra, Ezzeddine

doi:10.1007/s11814-014-0216-y

Cited by 127 publications

(52 citation statements)

References 49 publications

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“…However, the pseudo-second-order model presents the best fit to the experimental data of the biosorption of AB by Phragmites Australis fibers. The same trend has been found by other researchers (Mahmoudi et al, 2015;Ben Hamissa et al, 2012;Ncibi et al, 2009).…”

Section: Adsorption Kinetic Modelingsupporting

confidence: 91%

“…Obtaining maximum biosorption at an acid pH is probably due to an electrostatic attraction between the charges of the anionic dye and the positive charges of the surface of the fiber (Mahmoudi et al, 2015). However, the interaction of the AB with all functional groups of Phragmite australis fibers is possible via several adsorption mechanisms such as ion exchange, Van Der Waals interaction, hydrogen bond (between cellulose-OH and the AB) and microprecipitation (Ben Douissa et al, 2013).…”

Section: Influence Of Initial Phmentioning

confidence: 99%

“…Consequently, remove of textile colorant effluent has become a necessity both environmentally and for water reuse. There are several techniques for water treatment whatsoever biological wastewater treatment processes (Abidin and Rahmat, 2010) or different physico-chemical techniques such as: Adsorption on activated carbon (Mahmoudi et al, 2015), coagulation (Rodrigues et al, 2013), ultrafiltration (Căilean et al, 2009), reverse osmosis (Vijayageetha et al, 2014), techniques etc. Generally, these treatments have a major drawback common is the operating cost .…”

Section: Introductionmentioning

confidence: 99%

“…In this present study, we were interested particularly by the valorization of highly available and renewable Tunisian lignocellulosic biomass Phragmites australis for the depollution of industrial wastewater and retention of pollutants considered toxic (Mahmoudi et al, 2015) including metal complex dyes (Ben Hamissa et al, 2013). This process involving adsorption of organic compounds has been called biosorption.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Valuation of Biomaterial: <i>Phragmites australis</i> in the Retention of Metal-Complexed Dyes

Kesraoui

Mabrouk

Seffen

2017

American Journal of Environmental Sciences

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Abstract:The purpose of this research was to estimate the potential of cellulosic fibers of highly available and renewable Tunisian biomass Phragmites australis for the biosorption of an anionic metal complexed dye: Alpacide blue. The present study shows that the Phragmite australis were used successfully for the adsorption of Alpcide blue from aqueous solution. Equilibrium was reached after 5 h at 20°C and at pH 2. Optimal adsorption parameters for adsorption of dye onto fibers extract of upper rods were accomplished after 5 h of biosorption using an initial dye concentration of 50 mg L −1 , biosorbent amount of 0.5 g of Phragmites australis, pH 2 and a granulometry size between 250 and 500 µm. In these conditions, the adsorbed amount of Alpacide blue is 6.11 mg g −1 and the biosorption percentage is 85.9%. When the temperature increases until 60°C, the retention rate increases also to reach a value of 90.5%. Regarding fibers extracted from roots, we notice improvement of the adsorbed amount which reaches 7.0 mg g −1 and the overall retention rate of 92.6% at 20°C. While at 60°C the amount adsorbed is 7.4 mg g −1 and the fixation rate reached 94%. The biosorption phenomenon seems to be endothermic. Moreover the adsorption process is fast, following the model of pseudo-second order for both parts of the plant stems and roots. Finally, mathematical modeling of adsorption isotherms showed that the Freundlich model perfectly describes the biosorption of organic dye studied by these fibers of Phragmites australis for both stems and roots.

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Section: Adsorption Kinetic Modelingsupporting

confidence: 91%

Section: Influence Of Initial Phmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Valuation of Biomaterial: <i>Phragmites australis</i> in the Retention of Metal-Complexed Dyes

Kesraoui

Mabrouk

Seffen

2017

American Journal of Environmental Sciences

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show abstract

“…Moreover, microbial cellulose has numerous applications in various industries such as food, paper, acoustic membrane, and pharmacy (Phisalaphong, Suwanmajo, & Tammarate, 2008). Additionally, it has been widely used as a carrier in drug delivery systems and enzyme immobilization, wounddressing material, and scaffold for tissue engineering (Czaja et al, 2006;Mahmoudi, Hosni, Hamdi, & Srasra, 2015).…”

Section: Introductionmentioning

confidence: 99%

Innovative production of bio-cellulose using a cell-free system derived from a single cell line

Ullah

Ul-Islam

Khan

et al. 2015

Carbohydrate Polymers

147

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As‐Prepared Carbon Nanotubes for Water Purification: Pollutant Removal and Magnetic Separation

2018

Nanotechnology for Sustainable Water Resources

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Kinetics and equilibrium studies on removal of methylene blue and methyl orange by adsorption onto activated carbon prepared from date pits-A comparative study

Cited by 127 publications

References 49 publications

Valuation of Biomaterial: <i>Phragmites australis</i> in the Retention of Metal-Complexed Dyes

Valuation of Biomaterial: <i>Phragmites australis</i> in the Retention of Metal-Complexed Dyes

Innovative production of bio-cellulose using a cell-free system derived from a single cell line

As‐Prepared Carbon Nanotubes for Water Purification: Pollutant Removal and Magnetic Separation

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