Розкладання пероксиду бензоїлу вуглецевими наноматеріалами у неводному середовищі
The stability of 5% benzoyl peroxide solutions during two hours were investigated. It was shown, that stability decrease in row: ethyl acetate, acetone, carbon tetrachloride, butanol and acetic acid. The catalytic activity of catalase, nanoporous (activated carbons of SCN and KAU type) and nanodimen...
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| Date: | 2014 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2014
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| Online Access: | https://surfacezbir.com.ua/index.php/surface/article/view/553 |
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| Journal Title: | Surface |
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Surface| Summary: | The stability of 5% benzoyl peroxide solutions during two hours were investigated. It was shown, that stability decrease in row: ethyl acetate, acetone, carbon tetrachloride, butanol and acetic acid. The catalytic activity of catalase, nanoporous (activated carbons of SCN and KAU type) and nanodimensioned (carbon nanotubes) carbon materials, their modified forms (O- and N-containing) in reaction of ethyl acetate solutions of benzoyl peroxide decomposition were determined by calculation of Michaelis constants (KM) according to the kinetics of substrate decomposition. It is shown that the carbon materials exhibit high catalytic activity in a nonaqueous medium, the same or higher activity of enzyme catalase. It was determined that catalytic activity of carbon nanomaterials decreases in the series: N-КАУ > N-CNT > N-SCN > CNT > SCN > SCNо > catalase > KAU, CNTо > KAUо. It is founded that the catalytic activity of studied samples correlated with changes in surface chemistry. Introduction of Nitrogen atoms to carbon nanomaterials structure increases but oxidization decreases its catalytic activity. |
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