Comparison Study of Adsorption of Lead and Methylene Blue on Zeolite, Activated Carbon and Their Composite Materials

In this study, composite materials consisting of Activated Carbon (AC) and Zeolite were prepared for application in the removal of methylene blue and lead from an aqueous solution. The optimum synthesis method involves the use of metakaolinization and zeolitization, in the presence of activated carbon from kaolin, to form Zeolite. First, Kaolin was thermally activated into amorphous kaolin (metakaolinization); then the resultant metakaolin was attacked by alkaline, transforming it into crystalline zeolite (zeolitization). Using nitrogen adsorption and SEM techniques, the examination and characterization of composite materials confirmed the presence of a homogenous distribution of Zeolite throughout the activated carbon. It has also shown the carbonization process did not destroy the crystalline structure of the zeolite, which was revealed to be intact. Experiments in batch mode were conducted (using three differently-prepared composites, zeolite and activated carbon), to investigate the removal of methylene blue and lead from the aqueous solution of the sorbents. Key experimental parameters (initial concentration, pH, contact time and adsorbent dosage) from the obtained results were measured and analysed. Freundlich and Langmuir models were used to describe the adsorption isotherms, and the observed adsorption kinetic adhered to pseudo-second order.

Download Full-text

Kinetics and Isotherms Studies of methylene blue Basic Dye from Aqueous Solution onto Selenicereus grandiflorus Activated Carbon

Asian Journal of Materials Chemistry ◽

10.14233/ajmc.2019.ajmc-p71 ◽

2019 ◽

Vol 4 (1-2) ◽

pp. 1-6

Author(s):

M. Mahadeva Swamy ◽

B.M. Nagabhushana ◽

Nagaraju Kottam

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Point Of Zero Charge ◽

Blue Dye ◽

Methylene Blue Dye ◽

Batch Mode ◽

Adsorption Studies ◽

Kinetics And Isotherms ◽

Adsorbent Dose

The present experiment explains the effectiveness of adsorption studies of methylene blue dye from aqueous solutions on activated carbon from Selenicereus grandiflorus (SG) treated with conc. sulfuric acid. The sulphuric acid-treated Selenicereus grandiflorus activated carbon (SGAC) was used as low-cost adsorbent for the removal of methylene blue dye from aqueous solution. It suggests an ideal alternative method to adsorption of dye compared to other expensive treatment options. The adsorption studies have been conducted at different experimental parameters, i.e., pH, contact time, adsorbent dose and initial dye concentration. The batch mode experiments were conducted by different adsorbent dose (0.03-0.150 g per 50 mL), pH of the solution (2-12), effect of time (3-18 min), initial dye concentration (10 mg/L), point of zero charge and regeneration of spent adsorbent studies. Langmuir model shows better fit to the equilibrium data (R2 = 0.966) than Freundlich model. The adsorption capacity (Qm) of SGAC increases with increasing dosage where Qm is 16.17 mg g-1.

Download Full-text

The Adsorption Efficiency of Chemically Prepared Activated Carbon from Cola Nut Shells by on Methylene Blue

Journal of Chemistry ◽

10.1155/2013/469170 ◽

2013 ◽

Vol 2013 ◽

pp. 1-7 ◽

Cited By ~ 24

Author(s):

Julius Ndi Nsami ◽

Joseph Ketcha Mbadcam

Keyword(s):

Methylene Blue ◽

Activated Carbon ◽

Experimental Studies ◽

Isotherm Models ◽

Solution Ph ◽

Batch Mode ◽

Initial Concentration ◽

Adsorption Isotherm Models ◽

Pseudo Second Order ◽

Blue Solution

The adsorption of methylene blue from aqueous solution onto activated carbon prepared from cola nut shell has been investigated under batch mode. The influence of major parameters governing the efficiency of the process such as, solution pH, sorbent dose, initial concentration, and contact time on the removal process was investigated. The time-dependent experimental studies showed that the adsorption quantity of methylene blue increases with initial concentration and decreasing adsorbent dosage. The equilibrium time of 180 min was observed and maximum adsorption was favoured at pH 3.5. The dye removal using 0.1 g of adsorbent was more than 90%. This dosage (0.1 g) was considered as the optimum dosage to remove methylene blue from aqueous solutions. The equilibrium adsorption data were analyzed by the Freundlich, Langmuir adsorption isotherm models. The kinetics of methylene blue solution was discussed by pseudo-first-order, pseudo-second-order, and Elovich models. The adsorption process follows the Elovich rate kinetic model, having a correlation coefficient in the range between 0.9811 and 1.

Download Full-text

ADSORPTIVE REMOVAL OF METHYLENE BLUE FROM SYNTHETIC WASTEWATER USING DATE PALM SEEDS, GOETHITE AND THEIR COMPOSITE

Acta Scientifica Malaysia ◽

10.26480/asm.01.2021.27.35 ◽

2020 ◽

Vol 5 (1) ◽

pp. 27-35

Author(s):

Nasir Abdus- Salam ◽

Abiola Victoria Ikudayisi-Ugbe ◽

Fabian Audu Ugbe

Keyword(s):

Methylene Blue ◽

Activated Carbon ◽

Date Palm ◽

Solution Concentration ◽

Synthetic Wastewater ◽

Isotherm Models ◽

Thermally Activated ◽

Adsorption Processes ◽

Pseudo Second Order ◽

Kinetics And Thermodynamic

The adsorption of Methylene Blue (MB) onto Raw Date-palm Seeds (RDS), Thermally Activated Carbon (TAC), Chemically Activated Carbon (CAC), Goethite (GT) and their Composite (COM) were studied using batch equilibrium technique. Variations of sorptive properties such as initial solution concentration, pH, adsorbent dosage, contact time and temperature had a remarkable influence on the adsorption processes. The data fitted well tested isotherm models in the order; Langmuir (R2 = 0.942 and 0.963) > Freundlich (0.886 and 0.948) > Temkin (0.869 and 0.83) for GT and COM respectively. That of CAC and TAC was best described by Freundlich and Langmuir models respectively while RDS showed very poor fittings. Pseudo-second order and film diffusion models best described the adsorption kinetics. The adsorption was feasible, spontaneous (∆G < 0) and exothermic (except MB-CAC with ∆H being positive). The combined results of isotherm, kinetics and thermodynamic studies suggested a combined chemisorptions and physisorptions processes. Also, the kinetic modeling suggested that intra-particle and film diffusions occurred simultaneously and/or in combination with other processes in the mechanism of adsorption.

Download Full-text

Removal of methylene blue from aqueous solution using cocoa (Theobroma cacao) nib-based activated carbon treated with hydrochloric acid

Malaysian Journal of Fundamental and Applied Sciences ◽

10.11113/mjfas.v14n2.770 ◽

2018 ◽

Vol 14 (2) ◽

pp. 193-197 ◽

Cited By ~ 2

Author(s):

Mohd Sukri Hassan ◽

Khairul Adli Nikman ◽

Fisal Ahmad

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Chemical Activation ◽

Batch Adsorption ◽

Activation Process ◽

Order Model ◽

Experimental Isotherm ◽

Pseudo Second Order ◽

Adsorptive Properties

Chemical activation process was applied to prepare a cocoa nib-based activated carbon using potassium carbonate (K2CO3). The performance of the activated carbon in removing Methylene Blue from aqueous solution was investigated by batch adsorption studies. The adsorptive properties were studied in terms of initial concentration (C0: 100-300 mg/L) and contact time effects. The experimental isotherm data fitted well the Langmuir and Temkin models. The adsorption kinetic followed the pseudo-second-order model and Boyd model explained the mechanism of adsorption. The results indicate that the chemically produced activated cocoa nib carbon has significant potential to be used as an adsorbent material for adsorption of Methylene Blue from aqueous solution.

Download Full-text

Removal of Methylene Blue Dye From Aqueous Solution Using PDADMAC Modified ZSM-5 Zeolite as a Novel Adsorbent

10.21203/rs.3.rs-211769/v1 ◽

2021 ◽

Author(s):

Sabarish Radoor ◽

Jasila Karayil ◽

Aswathy Jayakumar ◽

Jyotishkumar Parameswaranpillai ◽

Suchart Siengchin

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Contact Time ◽

Adsorption Process ◽

Nitrogen Adsorption ◽

Second Order ◽

Blue Dye ◽

Batch Adsorption ◽

Maximum Adsorption Capacity ◽

Pseudo Second Order

Abstract In the present work, we modified ZSM-5 zeolite using a bio polymer poly (diallyl dimethyl ammonium chloride) and employed it for the removal of cationic dye, methylene blue from aqueous solution. The chemical and physical properties of the modified ZSM-5 zeolite were investigated using XRD, FTIR, SEM, TEM, nitrogen adsorption, TGA and 27Al NMR. Modified ZSM-5 zeolite possesses high surface area and pore diameter which was confirmed from SEM, TEM and nitrogen adsorption analysis. Adsorption of methylene blue on zeolite was investigated by batch adsorption technique. The effect of different parameters such as zeolite dosage, initial methylene blue concentration, temperature, pH and contact time on the adsorption process was discussed. Maximum adsorption capacity (4.31 mg/g) was achieved using 0.1g of modified ZSM-5 zeolite at the optimum conditions (initial dye concentration: 10 mg/L, pH: 10, temperature:30oC and contact time: 300 min). The experimental data were fitted into Langmuir and Freundlich models and the results indicate that the adsorption process followed Freundlich isotherm. Kinetic data were investigated using pseudo-first-order and pseudo-second-order models. Kinetic analysis indicates that pseudo-second-order model is more suitable to describe adsorption of MB on modified ZSM-5 zeolite. The reusability test suggests that the adsorbent could be reused at least six times without significant loss in removal efficiency.

Download Full-text

Cationic Dye Removal By Sugarcane Bagasse Activated Carbon From Aqueous Solution

Global NEST Journal ◽

10.30955/gnj.001764 ◽

2015 ◽

Vol 17 (4) ◽

pp. 784-795 ◽

Cited By ~ 2

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Sugarcane Bagasse ◽

Dye Removal ◽

Adsorption Process ◽

Low Cost ◽

Second Order ◽

Cationic Dye ◽

Pseudo Second Order

<div> <p>Low cost agricultural waste adsorbents can be viable alternatives to activated carbon for the treatment of contaminated wastewater. Sugarcane Bagasse, an abundant agriculture waste in Egypt, was used in the present study to prepare activated carbon. Batch adsorption experiments were conducted to study its effectiveness to remove cationic dye methylene blue from aqueous solution. The effects of initial dye concentrations, agitation time, solution pH and temperature on methylene blue dye removal were investigated. The optimum pH value for the maximum percentage removal of the dye was 7. Adsorption isotherms were determined and modeled with Redlich–Peterson, Langmuir and Freundlich equations at 20ºC.The kinetic data were analyzed using Pseudo-first order, pseudo-second order. The mechanism of the adsorption process was determined from the intraparticle diffusion model. Thermodynamic parameters such as standard enthalpy (ΔH°), standard entropy (ΔS°) and free energy (ΔG°) were determined.  The equilibrium data were best fitted to the Redlich–Peterson isotherm model .The adsorption kinetics was found to follow the pseudo-second-order kinetic model with good correlation coefficient. The positive ΔH<sup>◦</sup> value indicated that the adsorption process was endothermic in nature. The results revealed sugarcane bagasse activated carboncould be employed as a low-cost alternative adsorbent in wastewater treatment. </p> </div> <p> </p>

Download Full-text

KINETIC AND EQUILIBRIUM STUDY ON THE ADSORPTION OF METHYLENE BLUE FROM AQUEOUS SOLUTION ONTO COFFEE HUSK ACTIVATED CARBON

Journal of Science Natural Science ◽

10.18173/2354-1059.2020-0036 ◽

2020 ◽

Vol 65 (6) ◽

pp. 116-129

Author(s):

Khu Le Van ◽

Son Ta Huu ◽

Thuy Luong Thi Thu ◽

Huong Vu Thi ◽

Dung Le Huu ◽

...

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Scale Up ◽

Isotherm Models ◽

Coffee Husk ◽

Equilibrium Study ◽

Intra Particle Diffusion ◽

Pseudo Second Order ◽

One Step

In this study, the adsorption kinetics and equilibrium of methylene blue from aqueous solution onto activated carbon derived from coffee husk using one step ZnCl2 activation were investigated. The influence of initial methylene blue concentration and temperature were evaluated employing the batch experiment. To the experimental data, different kinetics and isotherm models were applied, finding that the best fitted is the pseudo-second-order equation and the Redlich-Peterson model, respectively. The mechanism of the adsorption was examined using the Weber and Morris model, and the obtained results suggested that the intra-particle diffusion was not the only rate-controlling step. The scale-up system was also designed for 50 - 90% methylene blue removal from an initial concentration of 100 mg L-1 at 30 oC.

Download Full-text

Kinetic of Adsorption Process of Sulfonated Carbon-derived from Eichhornia crassipes in the Adsorption of Methylene Blue Dye from Aqueous Solution

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS ◽

10.9767/bcrec.14.1.2548.17-27 ◽

2019 ◽

Vol 14 (1) ◽

pp. 17

Author(s):

Mukhamad Nurhadi ◽

Iis Intan Widiyowati ◽

Wirhanuddin Wirhanuddin ◽

Sheela Chandren

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Eichhornia Crassipes ◽

Adsorption Process ◽

Dye Adsorption ◽

Nitrogen Adsorption ◽

Blue Dye ◽

Methylene Blue Dye ◽

Pseudo Second Order ◽

Adsorption Desorption

The evaluation of kinetic adsorption process of sulfonated carbon-derived from Eichhornia crassipes in the adsorption of methylene blue dye from aqueous solution has been carried out. The sulfonated carbon-derived from E. crassipes (EGS-600) was prepared by carbonation of E. crassipes powder at 600 °C for 1 h, followed by sulfonation with concentrated sulfuric acid for 3 h. The physical properties of the adsorbents were characterized by using Fourier transform infrared spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption-desorption studies. Adsorption study using methylene blue dye was carried out by varying the contact time and initial dye concentration for investigated kinetics adsorption models. The effect of varying temperature was used to determine the thermodynamic parameter value of ΔG, ΔH, and ΔS. The results showed that the equilibrium adsorption capacity was 98% when EGS-600 is used as an adsorbent. The methylene blue dye adsorption onto adsorbent takes place spontaneity and follows a pseudo-second-order adsorption kinetic model. Copyright © 2019 BCREC Group. All rights reservedReceived: 20th April 2018; Revised: 28th August 2018; Accepted: 4th September 2018; Available online: 25th January 2019; Published regularly: April 2019How to Cite: Nurhadi, M., Widiyowati, I.I., Wirhanuddina, W., Chandren, S. (2019). Kinetic of Adsorption Process of Sulfonated Carbon-derived from Eichhornia crassipes in the Adsorption of Methylene Blue Dye from Aqueous Solution. Bulletin of Chemical Reaction Engineering & Catalysis, 14 (1): 17-27 (doi:10.9767/bcrec.14.1.2548.17-27)Permalink/DOI: https://doi.org/10.9767/bcrec.14.1.2548.17-27

Download Full-text

Adsorption of methylene blue from aqueous solution onto activated carbons developed from eucalyptus bark and Crataegus oxyacantha core

Water Science & Technology ◽

10.2166/wst.2016.287 ◽

2016 ◽

Vol 74 (9) ◽

pp. 2021-2035 ◽

Cited By ~ 3

Author(s):

Mohammad Ali Zazouli ◽

Ali Azari ◽

Samaneh Dehghan ◽

Razieh Salmani Malekkolae

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Activated Carbons ◽

Second Order ◽

Point Of Zero Charge ◽

Polluted Water ◽

Order Kinetic ◽

Pseudo Second Order ◽

Eucalyptus Bark

In this study, eucalyptus bark and Crataegus oxyacantha core-based activated carbon were synthesized and their morphological features characterized by scanning electron microscopy and Fourier transform infrared spectroscopy techniques. The efficiency of synthesized adsorbents in removal of methylene blue (MB) from aqueous solution was investigated in a series of batch experiments. Furthermore, the influences of various experimental factors involving the contact time, the initial dye concentration, the adsorbent dosage, and the pH of the dye solution were investigated. The point of zero charge (pHpzc) of the applied adsorbents was also determined. In addition, the experimental data were expressed by Langmuir, Freundlich and Tempkin isotherms and pseudo-first order and pseudo-second order kinetic models. Adsorption equilibrium of the two adsorbents was reached within 1 h for MB concentrations of 20 to 100 mg/L. The equilibrium data obtained at optimum conditions of MB sorption by eucalyptus bark activated carbon and Crataegus oxyacantha core activated carbon were best fitted to Tempkin and Langmuir isotherm models, respectively. Besides, it was revealed that the adsorption rate follows a pseudo-second order kinetic model. From the findings of this study, it can be postulated that these adsorbents could be of great potential as a new class of adsorbents for organic dye removal from polluted water.

Download Full-text

Coconut shell-based activated carbon as adsorbent for the removal of dye from aqueous solution: equilibrium, kinetics, and thermodynamic studies

Nigerian Journal of Technology ◽

10.4314/njt.v39i4.14 ◽

2021 ◽

Vol 39 (4) ◽

pp. 1076-1084

Author(s):

O. Oribayo ◽

O.O. Olaleye ◽

A.S. Akinyanju ◽

K.O. Omoloja ◽

S.O. Williams

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Kinetic Data ◽

Ph Value ◽

Waste Water Treatment ◽

Second Order ◽

Coconut Shell ◽

Isotherm Models ◽

Pseudo Second Order

The need to develop more efficient adsorbent, comparable to commercially available adsorbent, is attracting significant interest as promising adsorbent for waste water treatment. In this study, the potential of activated carbon prepared from waste coconut shell (CSAC) for the removal of methylene blue (Mb) from aqueous solution was reported. Batch experiments were conducted to determine the adsorption isotherm and kinetics of Mb on CSAC. Langmuir, Freundlich and Temkin isotherm models were employed to fit and analyze the adsorption equilibrium data. The result shows Langmuir isotherm model gave the best fit and an adsorption capacity of 320.5 mg/g was obtained for Mb at pH value of 7, 0.02 g adsorbent dosage and contact time of 4.5 hour. The experimental kinetic data at different initial Mb concentrations was also analyzed with pseudo-first order, pseudo-second order and intraparticle diffusion models. The obtained results showed that the pseudo-second order model fits the adsorption kinetic data with R2 range of0.9985-0.9996. Finally, the thermodynamic parameters show that the adsorption of Mb on CSAC was spontaneous and endothermic in nature. This therefore suggests that (CSAC) is a viable adsorbent for effective removal of dye from wastewater effluent. Keywords: Activated carbon, Adsorption isotherms, Coconut shells, Methylene blue, kinetics.

Download Full-text