scholarly journals Copper loaded on activated carbon as an efficient adsorbent for removal of methylene blue

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14395-14405 ◽  
Author(s):  
Jianhua Shu ◽  
Song Cheng ◽  
Hongying Xia ◽  
Libo Zhang ◽  
Jinhui Peng ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Microwave Heating ◽  
Cupric Nitrate ◽  
Efficient Adsorbent

Copper loaded activated carbon (Cu-AC) was prepared by impregnating it with cupric nitrate followed by microwave heating and then used for removing dyes in wastewater.

scholarly journals Equilibrium Adsorption Studies of Methylene Blue onto Caesalpinia pulcherrima Husk-based Activated Carbon

2019 ◽  
pp. 1-11
Author(s):  
A. A. Nuhu ◽  
I. C. P. Omali ◽  
C. O. Clifford
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Chemical Activation ◽  
Langmuir Model ◽  
Coefficient Of Determination ◽  
Adsorption Characteristic ◽  
Monolayer Adsorption ◽  
Langmuir Isotherm Model ◽  
Activating Agent ◽  
Efficient Adsorbent

Activated carbon was prepared from Caesalpinia pulcherrima husk (CPH) by chemical activation method using phosphoric acid as an activating agent.  The activated sample was characterized based on the physical properties.  The experimental data were fitted to Langmuir, Freundlich and Temkin models. The coefficient of determination for Langmuir model R2 = 0.967 was higher compared to Freundlich and Temkin showing monolayer adsorption, and also established that the adsorption of methylene onto CPH based activated carbon can be best described by the Langmuir isotherm model. The energy of adsorption (806.2 kJ/mol) obtained from this model shows clearly that the process is chemisorption. It was observed that the adsorption characteristic indicates a rapid uptake of the adsorbate; the optimum contact time for the adsorption of Methylene blue onto the prepared carbon was 60 minutes. This evidence also points to chemisorption process. These results demonstrate that the carbon derived from CPH can be used as an efficient adsorbent for the adsorption of Methylene blue.

scholarly journals Iron Impregnated Activated Carbon as an Efficient Adsorbent for the Removal of Methylene Blue: Regeneration and Kinetics Studies

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0122603 ◽  
Author(s):  
Irfan Shah ◽  
Rohana Adnan ◽  
Wan Saime Wan Ngah ◽  
Norita Mohamed
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Kinetics Studies ◽  
Efficient Adsorbent

Analisis Variasi Temperatur Aktivasi Terhadap Daya Serap Arang Aktif Tandan Aren (Arenga Pinnata Merr) Dengan Agen Aktivasi Potassium Silicate(K2SiO3)

2020 ◽  
Vol 5 (3) ◽  
pp. 221
Author(s):  
Muhammad Azam ◽  
Muhammad Anas ◽  
Erniwati Erniwati
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Temperature Variation ◽  
Chemical Activation ◽  
Weight Ratio ◽  
Potassium Silicate ◽  
Physical Activation ◽  
Activation Temperature ◽  
Pyrolysis Reactor

This study aims to determine the effect of variation of activation temperature of activated carbon from sugar palm bunches of chemically activatied with the activation agent of potassium silicate (K2SiO3) on the adsorption capacity of iodine and methylene blue. Activated carbon from bunches of sugar palmacquired in four steps: preparationsteps, carbonizationstepsusing the pyrolysis reactor with temperature of 300 oC - 400 oC for 8 hours and chemical activation using of potassium silicate (K2SiO3) activator in weight ratio of 2: 1 and physical activation using the electric furnace for 30 minutes with temperature variation of600 oC, 650 oC, 700 oC, 750 oC and 800 oC. The iodine and methyleneblue adsorption testedby Titrimetric method and Spectrophotometry methodrespectively. The results of the adsorption of iodine and methylene blue activated carbon from sugar palm bunches increased from 240.55 mg/g and 63.14 mg/g at a temperature of 600 oC to achieve the highest adsorption capacity of 325.80 mg/g and 73.59 mg/g at temperature of 700 oC and decreased by 257.54 mg/g and 52.03 mg/g at a temperature of 800 oCrespectively.However, it does not meet to Indonesia standard (Standard Nasional Indonesia/SNI), which is 750 mg/g and 120 mg/g respectively.

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