Efficient adsorption of Europhtal onto activated carbon modified with ligands (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4); response surface methodology

Ghaedi, Mehrorang; barakat, E. Alam; Asfaram, Arash; Mirtamizdoust, Babak; Bazrafshan, Ali Akbar; Hajati, Shaaker

doi:10.1039/c5ra03622d

Cited by 26 publications

(35 citation statements)

References 34 publications

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“…Importance of wastewater quality [9,10] is associated with application of various physical and chemical methods such as coagulation [11], reverse osmosis [12], photo-degradation [13], electrochemical oxidation [14], ozonation [15], biosorption [16,17] and adsorption [7,[18][19][20] to achieve clean ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Mazaheri

Ghaedi

Asfaram

et al. 2016

Journal of Molecular Liquids

129

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In this research, simultaneous adsorption of Bromophenol blue (BPB) and Methylene blue (MB) dyes in binary mixture onto activated carbon modified with CuS nanoparticle were studied. The CuS nanoparticle loaded on activated carbon (CuS-NP-AC) was synthesized and identifying by SEM and XRD analysis. The effect of pH on their removal percentage in single and binary system were examined, while the individual and combination effect of factors variables such as concentration of MB and BPB, amount of adsorbent and sonication time were studied by central composite design (CCD). Then, the adsorption kinetics and their isotherms investigation in binary solution reveal that data well fitted by Langmuir model in comparison to other models with maximum mono layer loading capacities of 106.4 and 208.3 mg g-1 of adsorbent for BPB and MB respectively in single-component. Ultrasonic is used instead of conventional magnetic stirrer to accelerate mass transfer and simultaneously shortened the removal time and amount of adsorbent. Sonication by lateral bubbling cause enhance in diffusion coefficient and finally enhance the removal percentage.

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Section: Introductionmentioning

confidence: 99%

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Mazaheri

Ghaedi

Asfaram

et al. 2016

Journal of Molecular Liquids

129

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“…Recently, the carbon-based materials modified by novel nanostructures and/or nanoporous materials have been widely used for water purification. 15,16 In this work, CCD was applied to study the ultrasonic-assisted adsorption of BG and SO dyes in binary solution by using the prepared ZnO nanorod-loaded activated carbon (ZnO-NR-AC) as green and safe nanostructured adsorbent. [11][12][13] Further improvement in the adsorptionbased dye removal methods may be efficiently achieved by using ultrasonic irradiation which causes highpressure shake waves and high-speed micro jets following violent collapse of cavitations bubbles.…”

Section: Introductionmentioning

confidence: 99%

Enhanced simultaneous removal of malachite green and safranin O by ZnO nanorod-loaded activated carbon: modeling, optimization and adsorption isotherms

et al. 2015

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Simultaneous ultrasonic-assisted adsorption of malachite green (MG) and safranin O (SO) onto ZnO nanorodloaded activated carbon (ZnO-NR-AC) as green and safe nanostructured adsorbent was studied. The adsorbent was characterized by SEM, FT-IR and XRD. The dependence of adsorption efficiency on various parameters such as pH, sonication time, adsorbent mass, initial MG concentration and initial SO concentration was investigated by central composite design (CCD) under response surface methodology (RSM). A predictive model was successfully constructed for the suitable description of real behavior of adsorption state. Optimum conditions at which the maximum removal of the MG (99 %) and SO (95 %) are achieved in short time were obtained. The adsorption kinetics and equilibrium isotherm were shown to be well described by the pseudosecond-order kinetic and Langmuir model, respectively. The reasonably high values of 59.17 and 55.25 mg g −1for the adsorption capacity of Zn-NR-AC were obtained for the adsorption of MG and SO, respectively.

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“…6a with high correlation coefficient that indicates the applicability of models. 28 The independent parameters including pH, adsorbent dosage, sonication time and initial concentration of each dye have a significant influence on the yield of the adsorption ( Table 5). In this case, R 2 of the model obtained was 0.993, 0.997 and 0.987 for BG, MB and CV, respectively.…”

Section: 3ccd Results and Fitted Regression Equations Associated Tmentioning

confidence: 99%

“…28 RSM is very useful to reduce the number of experiments to be conducted, in order to produce adequate information, which is statistically acceptable as a result. 28 RSM is very useful to reduce the number of experiments to be conducted, in order to produce adequate information, which is statistically acceptable as a result.…”

Section: Experimental Designmentioning

confidence: 99%

Ternary dye adsorption onto MnO₂ nanoparticle-loaded activated carbon: derivative spectrophotometry and modeling

et al. 2015

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The MnO 2 nanoparticle-loaded activated carbon (MnO 2 -NP-AC) as an efficient, environmental friendly and cost-effective adsorbent was simply synthesized and characterized using different techniques such as FE-SEM, EDX, XRD, BET and FTIR. The rapid and simultaneous ultrasound-assisted adsorption of brilliant green (BG), crystal violet (CV) and methylene blue (MB) dyes with severe spectra overlap was investigated onto MnO 2 -NP-AC as a novel and efficient adsorbent. The dyes in their ternary mixtures were simultaneously determined using third order derivative spectrophotometry. Response surface methodology (RSM) was successfully applied to analyze and optimize the adsorption process. The optimal conditions for pH, adsorbent dosage, initial dyes concentration and sonication time were obtained to be 7.0, 0.022 g, 6 mg L -1 and 4 min, respectively. Predicted and experimental data were found to be in good agreement. Artificial neural network (ANN) was applied for the accurate prediction of percentages of dyes removal from their ternary solution by MnO 2 -NP-AC adsorbent.The experimental equilibrium data were modeled by applying different isotherm models. The Langmuir model was found to be the most applicable one for describing the experimental equilibrium data obtained at optimal condition. A small amount of MnO 2 -NP-AC adsorbent (0.005 g) was successfully used for the removal of dyes (RE > 90.0%) in very short time (4.0 min) with high adsorption capacity in single component system (206.20, 234.20 and 263.16 mg g -1 for BG, CV and MB, respectively). Kinetics study showed the applicability of the secondorder kinetic model.Methylene blue (MB) (Fig 1a) as a thiazine cationic dye is commonly used for coloring paper and hair, 3 dyeing of cotton, wood, and silk. 4 Although MB is not highly hazardous; it can cause some harmful effects in humans such as increased heart rate, shock, vomiting, jaundice, cyanosis, quadriplegia, and tissue necrosis. 4Brilliant green (BG) (Fig 1b) is one of the most important dyes within the category of dye stuffs, which has been extensively used for dying silk, wool, leather, jute, cotton, biological stain, dermatological agent, veterinary medicine, green ink manufacture, intestinal parasites, fungus textile dying and paper printing. Therefore, wastewater of these industries is highly colored and causes water pollution which should be treated before its disposal. 5As a typical cationic dye, Crystal violet (CV) (Fig 1c) belongs to triphenylmethane group which is widely applied in coloring paper, temporary hair colorant, dyeing cottons, and wools. CV may harm the body via inhalation, ingestion and skin contact. It has also been found to cause cancer and severe eye irritation to human beings. 6, 7 Therefore, it is very essential to remove BG, CV and MB from industrial effluents.Various techniques, such as adsorption and biosorption, 8-13 membrane process, 4 coagulation, 14 flocculation, 15 photo decomposition, 16 electrochemical oxidation, 17 have been used for the removal of dyes from wastewater. ...

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Efficient adsorption of Europhtal onto activated carbon modified with ligands (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4); response surface methodology

Abstract: Porous activated carbon was modified with (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4).

Cited by 26 publications

References 34 publications

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Enhanced simultaneous removal of malachite green and safranin O by ZnO nanorod-loaded activated carbon: modeling, optimization and adsorption isotherms

Ternary dye adsorption onto MnO₂ nanoparticle-loaded activated carbon: derivative spectrophotometry and modeling

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Efficient adsorption of Europhtal onto activated carbon modified with ligands (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4); response surface methodology

Abstract: Porous activated carbon was modified with (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4).

Cited by 26 publications

References 34 publications

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design

Enhanced simultaneous removal of malachite green and safranin O by ZnO nanorod-loaded activated carbon: modeling, optimization and adsorption isotherms

Ternary dye adsorption onto MnO2 nanoparticle-loaded activated carbon: derivative spectrophotometry and modeling

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Ternary dye adsorption onto MnO₂ nanoparticle-loaded activated carbon: derivative spectrophotometry and modeling