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Indexed by:期刊论文

Date of Publication:2015-03-04

Journal:OZONE-SCIENCE & ENGINEERING

Included Journals:SCIE、EI

Volume:37

Issue:2

Page Number:178-185

ISSN No.:0191-9512

Key Words:Ozone; Activated Carbon Fiber; p-Nitrophenol; Textural Characteristics; Adsorption; Ozonation; Chemical Characteristics

Abstract:Ozonation of p-nitrophenol adsorbed on activated carbon fiber (ACF) was conducted in a semiwet atmosphere, and its effect on the textural and chemical characteristics of ACF was examined. The decomposition kinetics of p-nitrophenol followed a pseudo-first-order reaction, and an increase in O-3 input enhanced the removal of p-nitrophenol. Ozone slightly etched ACF and resulted in a decrease in the pore volume of ACF, but slightly different changes in pore diameter also occurred on virgin and spent ACF. An increase in the surface oxygen-containing groups (C=O, COOH, etc.) after ozonation might have influence on the adsorption capacity of ACF.