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- Title
Pre-oxidation effect on ammoxidation of activated carbon and its influence on Cu(II) adsorption.
- Authors
Mahaninia, Mohammad Hassan; Kaghazchi, Tahereh; Soleimani, Mansooreh; Rahimian, Paria; Esfandiari, Ali
- Abstract
Modification of activated carbon in order to enhance heavy metal removal is one of the most efficient methods. Here, the effect of pre-oxidation on ammoxidation of commercial activated carbon was introduced. Then, influence of these modifications on the characteristics and adsorption properties of activated carbon toward Cu(II) was investigated. Characterization of samples was performed by several analyses. The ammoxidation with two methods results in the introduction of new nitrogen functional groups in the structure of the activated carbon, but also changes the acid–base character of their surface and deteriorates their textural parameters slightly. Introduction of nitrogen into the structure of activated carbons improves their adsorption capacity toward Cu(II). The best adsorption capacity is obtained for the ammoxidized activated carbon with pre-oxidation.
- Subjects
ACTIVATED carbon oxidation; AMMOXIDATION; COPPER absorption &; adsorption; NITRIC acid; ACID-base chemistry
- Publication
Desalination & Water Treatment, 2016, Vol 57, Issue 10, p4597
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.994109