Preparation of activated carbon from mixed peels of fruits with chemical activation (K2CO3) - application in adsorptive removal of methylene blue from aqueous solution

2018 ◽  
Vol 22 (1/2/3/4) ◽  
pp. 260 ◽  
Author(s):  
A. Vimalkumar ◽  
J. Thilagan ◽  
K. Rajasekaran ◽  
C. Raja ◽  
M.N. Flora
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Chemical Activation ◽  
Adsorptive Removal

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

2018 ◽  
Vol 14 (2) ◽  
pp. 193-197 ◽  
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.

Fast adsorptive removal of methylene blue dye from aqueous solution onto a wild carrot flower activated carbon: Isotherms and kinetics studies

2017 ◽  
Vol 71 ◽  
pp. 399-405 ◽  
Author(s):  
M. Mahadeva Swamy ◽  
B.M. Nagabhushana ◽  
R. Hari Krishna ◽  
Nagaraju Kottam ◽  
R.S. Raveendra ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Adsorptive Removal ◽  
Kinetics Studies ◽  
Wild Carrot

Adsorptive Removal of Methyl Orange and Methylene Blue from Aqueous Solution with Finger-Citron-Residue-Based Activated Carbon

2013 ◽  
Vol 52 (39) ◽  
pp. 14297-14303 ◽  
Author(s):  
Rui Gong ◽  
Jingjing Ye ◽  
Wei Dai ◽  
Xiaoyang Yan ◽  
Jue Hu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Methyl Orange ◽  
Adsorptive Removal

scholarly journals Advantages of the Incorporation of Luffa-Based Activated Carbon to Titania for Improving the Removal of Methylene Blue from Aqueous Solution

2021 ◽  
Vol 11 (16) ◽  
pp. 7607
Author(s):  
Souad Boumad ◽  
Antonia Infantes-Molina ◽  
Isabel Barroso-Martín ◽  
Elisa Moretti ◽  
Enrique Rodríguez-Castellón ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Surface Area ◽  
Uv Light ◽  
Physical Adsorption ◽  
Chemical Activation ◽  
Tio2 Photocatalysts ◽  
Degussa P25

This research aims to study the possible improvement of methylene blue (MB) removal from aqueous solution by hybrid adsorbent-catalysts (AdsCats) prepared through the incorporation of activated carbon derived from Luffa cylindrica fibers (LAC) to TiO2 photocatalysts. LAC with a specific surface area of 1170 m2/g was prepared by chemical activation with phosphoric acid at 500 °C. TiO2/LAC composites with 70 and 90 wt.% Degussa P25 titania content were prepared. The materials were characterized by N2 physical adsorption, XRD, FTIR, and XPS. The AdsCats displayed a very good dispersion of TiO2 over LAC, a surface area of close to 200 or 400 m2/g, depending on the composition, and high crystallinity, showing the presence of anatase and rutile phases. MB removal was studied in two different scenarios: under UV-light after reaching adsorption equilibrium, and under UV-light once the liquid effluent and the AdsCats were in contact. The MB removal by LAC has proved to be very efficient, highlighting the predominant role of adsorption over photodegradation. The prepared AdsCats have also been compared with their components. The results showed that TiLAC hybrids have superior photocatalytic performance than P25, showing TiLAC-7/3 90% MB removal with respect to the initial concentration just after 30 min of UV light irradiation for both studied scenarios.

scholarly journals Preparation of oil palm empty fruit bunch based activated carbon for adsorption of dye from aqueous solution

2019 ◽  
Vol 268 ◽  
pp. 06008
Author(s):  
Narisara Intarachandra ◽  
Sukum Siriworakon ◽  
Theerapol Sangmanee
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Optimum Condition ◽  
Phosphoric Acid ◽  
Oil Palm ◽  
Average Pore Size ◽  
Chemical Activation ◽  
Synthetic Wastewater ◽  
Empty Fruit Bunch

The objectives of this research are to determine an optimum condition for producing the activated carbon from oil palm empty fruit bunch (OPEFB) and used as an adsorbent to remove methylene blue (MB) dye from aqueous solution. Chemical activation by phosphoric acid (H3PO4) was used as a procedure to modify OPEFB, in which in this study the carbonization and activation were done simultaneously. The concentrations of phosphoric acid were varied from 20-60% by weight and carbonization temperature and time were varied from 500-800oC and 30-60 minutes, respectively. It was found that among the conditions used, the best condition for producing activated carbon was obtained when using 60% H3PO4 and carbonized at 500oC for 30 minute. The produced activated carbon had a surface area of 362.5 m2/g and average pore size of 2.94 nm. Methylene blue and Iodine numbers were 13.62 and 356.46 mg/g, respectively, which were comparable to the results of commercial activated carbon; i.e. 6.96 and 778.7 mg/g. The optimum condition for the adsorption of MB from synthetic wastewater by produced activated carbon was found at pH 8-12 with equilibrium time of 4 hours. Results demonstrated that the equilibrium data was well fitted by Freundlich isotherm model with the isotherm constants KF of 7.75 mg/g and 1/n of 0.13.

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