Pb(II) and Cd(II) Removal from Aqueous Solutions Using Activated Carbon Developed from Coffee Residue Activated with Phosphoric Acid and Zinc Chloride

2011 ◽  
Vol 56 (5) ◽  
pp. 1946-1955 ◽  
Author(s):  
F. Boudrahem ◽  
A. Soualah ◽  
F. Aissani-Benissad
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Aqueous Solutions ◽  
Zinc Chloride

scholarly journals Effect of Chemical Treatment on Production of Activated Carbon from Cocos nucifera L. (Coconut) Shell by Microwave Irradiation Method

2021 ◽  
Vol 4 (2) ◽  
pp. 112-116
Author(s):  
Nor Amiera Syahida Arsyad ◽  
Mohammad Khairul Azhar Abdul Razab ◽  
An’amt Mohamed Noor ◽  
Mohd Hazim Mohamad Amini ◽  
Nik Nurul Anis Nik Yusoff ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Microwave Irradiation ◽  
Phosphoric Acid ◽  
Sodium Hydroxide ◽  
Zinc Chloride ◽  
Low Cost ◽  
Cocos Nucifera ◽  
Coconut Shell ◽  
High Porosity ◽  
Microwave Irradiation Method

In recent years, activated carbon has attracted attention among researchers due to its special properties such as high porosity, highly adsorption and low cost. In this research, activated carbon has been successfully produced from the coconut shell by using the microwave irradiation method where zinc chloride (ZnCl2), phosphoric acid (H3PO4) and sodium hydroxide (NaOH) were implemented as the activating agents. The results showed that phosphoric acid has the most significant effect on the synthesized activated carbon properties. The optimum parameter for the power of microwave irradiation used was 380 W, impregnation ratio of activating agent to char was 3:1 for phosphoric acid, 2:1 for sodium hydroxide, and for 1:1 zinc chloride while concentration of each activating agents was 0.5 M with 10 minutes of activation time. All samples then were characterized by using, Moisture meter, FTIR-ATR, XRD and TGA in order to determine the functional groups, composition and element and weight loss of the activated carbon. This research could benefit the environment by recycling the agriculture waste into a new useful material as well as to keep the environment safe from pollution.

scholarly journals Adsorption of Ammonia Ions and Ammonium from Aqueous Solutions on Modified Activated Carbons

2008 ◽  
Vol 3 (2) ◽  
pp. 55-57
Author(s):  
T. Lupashcu ◽  
M. Ciobanu
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
Activated Carbons ◽  
Modified Activated Carbons

The adsorption process of ammonia ions and ammonium from aqueous solutions on the intact activated carbon obtained from nutshells through activation with phosphoric acid and oxidized with H2O2 and later impregnated with salt containing Co2+, Ag+, Ni2+, Cu2+, has been investigated. The efficiency of ammonia ions and ammonium elimination from various water categories, using both activated carbon (the intact CAN-7 and CAN-7 oxidized with H2O2 and impregnated with Co2+, Ag+, Ni2+, Cu2+ ions) has been demonstrated.

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