scholarly journals Preparation and characterization of Activated Carbon from Iraqi Corns Stalks

2010 ◽  
Vol 7 (1) ◽  
pp. 766-772
Author(s):  
Baghdad Science Journal
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Langmuir Adsorption Isotherm ◽  
Maximum Amount ◽  
Standard Samples ◽  
Langmuir Adsorption ◽  
Before And After ◽  
Activating Agent ◽  
Characterization Of Activated Carbon

In this paper, Activated Carbon was successfully prepared from local Iraqi material namely corns stalks .Zinc chloride ZnCl2 was used as activating agent with different concentrations (20%, 40%, 60%) for 72 hours. followed by carbonization at 450 C for (2) hour. UV-Spectrophotometer used for measuring absorbance of methylene blue solutions before and after adsorption. the maximum amount adsorbed for methylene blue material of the prepared activated Carbon was studied by Langmuir adsorption isotherm. Other characteristics of the resulting activated Carbon also discussed, such as pH, Moisture Content and ash content. Finally Activated carbon prepared in this work has good properties compared to the standard samples in such a way it could be used in industrial activities due to the fact that the corn stalks available locally in our country.

Preparation and characterization of activated carbon derived from the Borassus flabellifer flower as an electrode material for supercapacitor applications

2017 ◽  
Vol 41 (10) ◽  
pp. 3939-3949 ◽  
Author(s):  
M. Sivachidambaram ◽  
J. Judith Vijaya ◽  
L. John Kennedy ◽  
R. Jothiramalingam ◽  
Hamad A. Al-Lohedan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Material ◽  
Two Stage ◽  
Precursor Material ◽  
Stage Process ◽  
Activating Agent ◽  
Supercapacitor Applications ◽  
Characterization Of Activated Carbon

Activated carbon is prepared by a two stage process with H3PO4 activating agent using the precursor material Borassus flabellifer flower as an electrode material for supercapacitors.

scholarly journals Preparation and Characterization of Activated Carbon from Lapsi (Choerospondias axillaris) Seed Stone by Chemical Activation with Potassium Hydroxide

2014 ◽  
Vol 9 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Sahira Joshi ◽  
Bhadra Prasad Pokharel
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Potassium Hydroxide ◽  
Low Cost ◽  
Chemical Activation ◽  
Sem Images ◽  
Monolayer Adsorption ◽  
Ft Ir ◽  
Characterization Of Activated Carbon

Activated carbon (AC) was prepared from Lapsi seed stone by chemical activation with Potassium hydroxide at 400°C. The AC was characterized by pH, moisture content, Fourier transform-infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), methylene blue (MB) and iodine (I2) number. FT-IR spectra indicated the presence of various oxygen containing functional groups on the surface of AC. SEM images show the highly porous characteristics of AC with full of cavities. The Iodine number of AC revealed that the AC was found to be highly micro-porous. The adsorption of methylene blue by prepared AC was analyzed by the Langmuir and Freundlich adsorption isotherms. The data fitted well to the Langmuir isotherm with monolayer adsorption capacity 158 mg/g. The analysis showed that the AC prepared from Lapsi seed stone activated with potassium hydroxide could be a low-cost adsorbent with favorable surface properties. DOI: http://dx.doi.org/10.3126/jie.v9i1.10673Journal of the Institute of Engineering, Vol. 9, No. 1, pp. 79–88

scholarly journals Preparation and Characterization of Activated Carbon from Pandanus candelabrum Stem

2020 ◽  
Vol 10 (2) ◽  
pp. 105-115
Author(s):  
Paul Dim ◽  
Augustine Ugochukwu ILOKA ◽  
Joseph Onyebuchi OKAFOR
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
X Ray Diffraction ◽  
X Ray ◽  
Chemical Agents ◽  
Alternative Material ◽  
Porous Adsorbent ◽  
Characterization Of Activated Carbon ◽  
Scanning Electron

Pandanus candelabrum stem, a new precursor, was used to synthesise activate carbon. The effect of sodium hydroxide, NaOH, zinc (II) chloride, ZnCl2 and phosphoric acid, H3PO4, different agents on prepared adsorbents was investigated. The adsorbents were prepared with chemical agents and carbonized at 400 oC for 1 hour. Surface morphology, elemental composition and functional groups were analysed with scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FTIR), respectively. The image analysis showed the presence of both micropores and mesopores in the adsorbents. The H3PO4 activated carbon had the maximum surface area (2648 m2/g), pore volume (1.683 cm3/g) and highest adsorption for iodine and methylene blue were 541 and 105 mg/g. Pandanus candelabrum stem is an alternative material that can be used to synthesis high porous adsorbent because is abundant, easy to access, inexpensive and readily available.   Keywords: Activated, adsorption, iodine number, methylene blue, Pandanus candelabrum, reagents

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