Removal of Chemazol Reactive Red 195 from aqueous solution by dehydrated beet pulp carbon

Dursun, Arzu; Tepe, Özlem

doi:10.1016/j.jhazmat.2011.07.105

Cited by 54 publications

(18 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, when 0.4 g/50 mL adsorbent dosage was used, the adsorption uptakes of RY at equilibrium increase from 4.60 to 10.91 mg/g as the initial dye concentration increases from 50 to 250 mg/L ( Figure 5). A similar phenomenon was observed for the adsorption of reactive dyes from aqueous solution on activated carbons [18,41,44]. The maximum percentage dye removal of RY was determined as 29.67% at an initial concentration of 50 mg/L for 0.1 g/50 mL adsorbent dosage and 73.61% at an initial concentration of 50 mg/L for 0.4 g/50 mL adsorbent dosage at 293 K. This interesting result shows that high concentration of RY dye attained maximum percentage dye removal even at low adsorbent dosage.…”

Section: Effect Of Initial Dye Concentration On Sscac Adsorptionsupporting

confidence: 72%

“…where 2 is the rate constant of pseudo-second-order adsorption (g/mg ⋅ min), is the contact time (min), and and (mg/g) are the amounts of RY adsorbed at equilibrium and at time (min), respectively [38]. If pseudo-second-order kinetic equation is suitable, and 2 can be determined experimentally from the slope and intercept of plot / versus [44].…”

Section: Batch Adsorption Studiesmentioning

confidence: 99%

“…The effect of initial dye concentration was studied by varying initial dye concentration from 50 to 250 mg/L for 0.4 g/50 mL adsorbent dosage. It has been known that increasing the initial dye concentration results in an increase in the adsorption capacity because the initial dye concentration provides a driving force to overcome mass transfer resistances between the adsorbent and adsorption media [44]. Initially, adsorbate molecules should encounter the boundary layer effect.…”

Section: Effect Of Initial Dye Concentration On Sscac Adsorptionmentioning

confidence: 99%

See 2 more Smart Citations

Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Özbay

Yargıç

Şahin

et al. 2013

Journal of Chemistry

View full text Add to dashboard Cite

The objective of this study was to investigate the removal of Remazol Yellow dye from aqueous solutions by adsorption on activated carbon prepared by chemical activation of sunflower seed cake. It was found that the carbon content of biomass increases up to 65.12% after activation and carbonization processes. The maximum percentage dye removal was obtained as 82.12% with 0.4 g/50 mL adsorbent dosage at 313 K. The Langmuir model showed the best fit with equilibrium isotherm data. The interactions were evaluated with respect to both pseudo-first-order and pseudo-second-order reaction kinetics. The adsorption process was found to follow the pseudo-second-order model. To optimize the operating conditions, the effects of pH, adsorbent dosage, and initial dye concentration were investigated by full factorial experimental design method; adsorbent dosage was found as the most significant factor with lower than 95% confidence level. The obtained results are very promising since (i) the utilization of sunflower seed cake activated carbon (SSCAC) played a critical role in the adsorption of dye; (ii) sunflower seed cake was an intriguing, low-cost, and easily available material. It can be an alternative adsorbent precursor for more expensive adsorbents used for Remazol Yellow (RY) removal.

show abstract

Section: Effect Of Initial Dye Concentration On Sscac Adsorptionsupporting

confidence: 72%

Section: Batch Adsorption Studiesmentioning

confidence: 99%

Section: Effect Of Initial Dye Concentration On Sscac Adsorptionmentioning

confidence: 99%

See 1 more Smart Citation

Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Özbay

Yargıç

Şahin

et al. 2013

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…Spontaneous and exothermic, the process was Dye adsorption. Dursun and Tepe (2011) found that dehydrated beet pulp carbon, an agricultural low cost by-product, can be used as an effective adsorbent to remove Chemazol Reactive Red 195 from aqueous solution. The maximum dye adsorption capacity was obtained as 58.0 mg/g at 50 °C at an optimized pH value (1.0).…”

Section: Reuse and Recyclementioning

confidence: 99%

Agricultural Wastes

Zhang¹,

Gonzalez²,

Davies³

et al. 2012

Water Environment Research

View full text Add to dashboard Cite

Agricultural wastes have become an increasing concern in recent years, as they may cause significant environmental problems; however, they may also be used for several beneficial purposes, as feed stock for energy production, and for chemical recovery and chemical or dye adsorption. This review is divided into the following four sections: agricultural waste characterization, waste reuse and recycling, waste treatment, and waste management and minimization.

show abstract

“…[13] Although these methods proved to be efficient in the removal of organic compounds and pharmaceuticals, they are costly and consume high energy [14] in addition of being obstructed in the presence of suspended organic particles. Adsorption proves to be effective in removing wide range of pharmaceuticals.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

El-Shafey

Lawati

Al-Hussaini

2014

Chemistry and Ecology

View full text Add to dashboard Cite

Dehydrated carbon (DC) was prepared from date palm leaflets via sulfuric acid treatment at 150• C in the presence of air. Acidified DC was converted to activated carbon (AC) at 500 • C under nitrogen atmosphere. DC shows low surface area (48 m 2 g −1 ), whereas activated carbon possesses high surface area (405 m 2 g −1 ). Both carbons were tested for the adsorption of fexofenadine (FEX) and diphenhydramine (DPH) at different initial pH, concentration and temperature. Maximum adsorption took place at pH 4.0 for FEX and pH 8.0 for DPH. Adsorption kinetics was found to follow well pseudo second-order kinetic model with increased adsorption as temperature increased within the range of 25-45 • C. Activation energy, E a , was 12-17.5 kJ mol −1 indicating physical adsorption of both drugs. Drug uptake was found to increase with temperature rise in the range of 25-45 • C. Thermodynamic parameters showed that the adsorption of drugs is spontaneous and endothermic in nature with physical adsorption dominating the removal processes. Despite having very low surface area, DC shows competitive adsorption capability for AC. Drug desorption from loaded carbons showed better performance from DC than from AC. The effect of the presence of KCl on adsorption of FEX and DPH was also studied.

show abstract

Removal of Chemazol Reactive Red 195 from aqueous solution by dehydrated beet pulp carbon

Cited by 54 publications

References 49 publications

Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Agricultural Wastes

Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

Contact Info

Product

Resources

About