Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH
Тип публикации: Journal Article
Дата публикации: 2013-07-22
scimago Q1
wos Q1
БС1
SJR: 3.690
CiteScore: 18.1
Impact factor: 11.3
ISSN: 0013936X, 15205851
PubMed ID:
23829468
General Chemistry
Environmental Chemistry
Краткое описание
Solid peroxides are a convenient source of hydrogen peroxide, which once released can be readily converted to active oxygen species or to dissolved dioxygen. A zinc peroxide nanodispersion was synthesized and characterized, and its solubility was determined as a function of pH and temperature. We show that zinc peroxide is much more stable in aqueous solutions compared to calcium and magnesium peroxides and that it retains its peroxide content down to pH 6. At low pH conditions H2O2 release is thermodynamically controlled and its dissolution product, Zn(2+), is highly soluble, and thus, hydrogen peroxide release can be highly predictable. The Gibbs free energy of formation of zinc peroxide was found to be -242.0 ± 0.4 kJ/mol and the enthalpy of formation was -292.1 ± 0.7 kJ/mol, substantially higher than theoretically predicted before. The biocidal activity of zinc peroxide was determined by inactivation studies with Escherichia coli cultures, and the activity trend agrees well with the thermodynamic predictions.
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Wolanov Y. et al. Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH // Environmental Science & Technology. 2013. Vol. 47. No. 15. pp. 8769-8774.
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Wolanov Y., Prikhodchenko P. V., Medvedev A. G., Pedahzur R., Lev O. Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH // Environmental Science & Technology. 2013. Vol. 47. No. 15. pp. 8769-8774.
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TY - JOUR
DO - 10.1021/es4020629
UR - https://doi.org/10.1021/es4020629
TI - Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH
T2 - Environmental Science & Technology
AU - Wolanov, Yitzhak
AU - Prikhodchenko, Petr V.
AU - Medvedev, Alexander G.
AU - Pedahzur, Rami
AU - Lev, Ovadia
PY - 2013
DA - 2013/07/22
PB - American Chemical Society (ACS)
SP - 8769-8774
IS - 15
VL - 47
PMID - 23829468
SN - 0013-936X
SN - 1520-5851
ER -
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@article{2013_Wolanov,
author = {Yitzhak Wolanov and Petr V. Prikhodchenko and Alexander G. Medvedev and Rami Pedahzur and Ovadia Lev},
title = {Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH},
journal = {Environmental Science & Technology},
year = {2013},
volume = {47},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/es4020629},
number = {15},
pages = {8769--8774},
doi = {10.1021/es4020629}
}
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MLA
Скопировать
Wolanov, Yitzhak, et al. “Zinc Dioxide Nanoparticulates: A Hydrogen Peroxide Source at Moderate pH.” Environmental Science & Technology, vol. 47, no. 15, Jul. 2013, pp. 8769-8774. https://doi.org/10.1021/es4020629.