Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
893 8 |
Ultima descărcare din IBN: 2021-03-29 15:50 |
Căutarea după subiecte similare conform CZU |
546.26 (11) |
Inorganic chemistry (444) |
SM ISO690:2012 GOREACIOC (ARAPU), Tatiana. Oxidation and characterization of active carbon AG-5. In: Chemistry Journal of Moldova, 2015, nr. 1(10), pp. 76-83. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2015.10(1).11 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Chemistry Journal of Moldova | |||||
Numărul 1(10) / 2015 / ISSN 1857-1727 /ISSNe 2345-1688 | |||||
|
|||||
DOI: https://doi.org/10.19261/cjm.2015.10(1).11 | |||||
CZU: 546.26 | |||||
Pag. 76-83 | |||||
|
|||||
Descarcă PDF | |||||
Rezumat | |||||
The surface chemistry of the commercial active carbon AG-5 has been modifi ed by oxidation with concentrated nitric acid. The structural changes caused by oxidative treatment were estimated on the basis of nitrogen adsorption-desorption isotherms and thermal analysis. Boehm titration method and infrared spectral analysis have been used in order to evaluate surface chemistry characteristics of active carbon samples. After oxidation process the amount of total acidic groups on oxidized active carbon surface (AG-5ox) increases by about 6 times in comparison with unmodifi ed sample (AG-5). The concentration of the acidic groups on |
|||||
Cuvinte-cheie active carbon, oxidation, surface properties, thermal analysis, infrared spectroscopy. |
|||||
|