Carbon letters
- Volume 5 Issue 2
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- Pages.55-61
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- 2004
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- 1976-4251(pISSN)
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- 2233-4998(eISSN)
Adsorption of p-Nitrophenol by Surface Modified Carbons from Aqueous Solution
- Goyal, Meenakshi (Department of Chemical Engineering & Technology, Panjab University)
- Received : 2004.02.05
- Accepted : 2004.05.04
- Published : 2004.06.30
Abstract
Adsorption isotherms of p-nitrophenol from its aqueous solutions on two samples of activated carbon fibres and two samples of granulated activated carbons have been determined in the concentration range 40~800 mg/L (ppm). The surface of these carbons was modified by oxidation with nitric acid and oxygen gas, and by degassing the carbon surface under vacuum at temperatures of