Journal
OZONE-SCIENCE & ENGINEERING
Volume 36, Issue 5, Pages 465-471Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01919512.2014.904738
Keywords
Ozone; Carbon Nanotube; Catalytic Effect; Modifying; para-Chlorobenzoic Acid
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2013R1A2A2A05006466]
- Korea Ministry of Education (MOE) as BK21 PLUS Project
- National Research Foundation of Korea [2013R1A2A2A05006466] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The catalytic effects and mechanisms of the ozone/carbon nanotube (O-3/CNT) process using para-chlorobenzoic acid (pCBA) were evaluated. To use pCBA as an O-3-resistant OH center dot probe compound in a pure water system at pH 7, an adequate amount of scavenger was needed. During the O-3/CNT process, a synergetic catalytic effect by OH center dot generation on the CNT surface could be evaluated in the condition of excess tert-butyl alcohol (TBA) concentration. The OH center dot radicals were generated and existed on both the bulk phase and CNT surface. The OH-ct values of the CNT surface and bulk phase in the O-3/CNT process for 10 min were 2.1 x 10(-5) and 2.5 x 10(-5) mu M.s, respectively. In modifying CNT evaluation, the catalytic effects were the most apparent in the following order: CNT treated with acid then heat (CNT-T), original untreated CNT (CNT-O), and CNT treated with an acid (CNT-A).
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