Hydroxylation and self-assembly of colloidal hydrogenated nanodiamonds by aqueous oxygen radicals from atmospheric pressure plasma jet

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00499824" target="_blank" >RIV/68378271:_____/18:00499824 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/18:00497855 RIV/68407700:21230/18:00326888
Result on the web
<a href="http://dx.doi.org/10.1039/c8ra07873d" target="_blank" >http://dx.doi.org/10.1039/c8ra07873d</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c8ra07873d" target="_blank" >10.1039/c8ra07873d</a>

Result language
angličtina
Original language name
Hydroxylation and self-assembly of colloidal hydrogenated nanodiamonds by aqueous oxygen radicals from atmospheric pressure plasma jet
Original language description
Plasma chemical modification of nanoparticles in gas-liquid type reactors enables controllable, specific, low-cost, and environmentally friendly alternative to other treatments. Here the atmospheric pressure radio-frequency microplasma jet (μ-APPJ) operating with 0.6% O2 in He is used to deliver aqueous oxygen radicals (AOR) to ~3 nm hydrogenated detonation nanodiamonds (H-DNDs) suspended in water. The main reaction mechanism is identified as the abstraction of surface hydrogen atoms by O or OH radicals and a consequent attachment of the OH group, thereby increasing concentration of alcohols, carboxyls, and aldehydes on the DND’s surface. FTIR spectra reveal also a structural re-arrangement of the surface water on the AOR-treated H-DNDs. Yet zeta-potential of AOR-treated H-DNDs still remains positive (decreases from +45 mV to +30 mV). The chemical modification gives rise to formation of nanoscale chain-like aggregates when AOR-treated H-DNDs are deposited on Si substrate.n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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