Water of increased content of molecular oxygen
Authors:
- Jarosław Chwastowski,
- Wojciech Ciesielski,
- Karen Khachatryan,
- Henryk Kołoczek,
- Damian Kulawik,
- Zdzisław Oszczęda,
- Jacek A. Soroka,
- Piotr Tomasik,
- Mariusz Witczak
Abstract
Deionized and tap water were saturated with molecular oxygen either prior to (WST),or after (WTS), treatment with low-temperature, low-pressure glow plasma of low frequency(LPGP) for 0, 5, 15, 30, 60, 90, and 120 min. Physical and physicochemical properties of theresulting liquids were characterized, involving pH, conductivity, density, dissolved molecular oxygen,active oxygen content, differential scanning calorimetry (DSC), ultraviolet-visible (UV-VIS), Fouriertransformation infrared-attenuated total reflectance (FTIR-ATR), electronic spin resonance (ESR),and Raman spectroscopies. Tap WST treated with LPGP for 30 min contained the highest level ofdissolved molecular oxygen, compared to original non-treated tap water (23 and 15 mg/L, respectively).Essential differences in all investigated properties of LPGP treated tap and deionized WST, comparedto those for corresponding WTS, pointed to the indispensable role of dissolved oxygen molecules inbuilding water macrostructure. In the case of tap WST, formation of niches and/or caverns hostinganions (HCO3−, SO4=) was accompanied by cations less enveloped by hydroxyl groups of water.The WST water contained niches of larger size, hosting molecules of oxygen interacting with theenvironment in various manners. In WTS there was a priority for single donor, single hydrogenbonded water, and free water in building the macrostructure. Such macrostructures host molecularoxygen which, depending on the LPGP treatment time, took either a singlet of triplet state.
- Record ID
- CUT23fab11e8e7e4b67a4685e5830d27856
- Publication categories
- ;
- Author
- Journal series
- Water, ISSN , e-ISSN 2073-4441, Biweekly
- Issue year
- 2020
- Vol
- 12
- No
- 9
- Pages
- [1-21]
- Article number
- 2488
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 19-21; Bibliografia (liczba pozycji) - 33; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 12, Iss. 9, Spec. Iss.
- Substantive notes
- Special Issue: Physical, Physicochemical and Functional Properties of Water Treated with Plasmas
- Keywords in English
- low-temperature, low-pressure glow plasma, singlet oxygen, triplet oxygen, water macrostructure
- DOI
- DOI:10.3390/w12092488 Opening in a new tab
- URL
- https://www.mdpi.com/2073-4441/12/9/2488/htm Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT23fab11e8e7e4b67a4685e5830d27856/
- URN
urn:pkr-prod:CUT23fab11e8e7e4b67a4685e5830d27856
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.