Single atom catalyst-mediated generation of reactive species in water treatment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F23%3A10253189" target="_blank" >RIV/61989100:27640/23:10253189 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15640/23:73621626

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2023/CS/D3CS00627A" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2023/CS/D3CS00627A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d3cs00627a" target="_blank" >10.1039/d3cs00627a</a>

Result language

angličtina

Original language name

Single atom catalyst-mediated generation of reactive species in water treatment

Original language description

Water is one of the most essential components in the sustainable development goals (SDGs) of the United Nations. With worsening global water scarcity, especially in some developing countries, water reuse is gaining increasing acceptance. A key challenge in water treatment by conventional treatment processes is the difficulty of treating low concentrations of pollutants (micromolar to nanomolar) in the presence of much higher levels of inorganic ions and natural organic matter (NOM) in water (or real water matrices). Advanced oxidation processes (AOPs) have emerged as an attractive treatment technology that generates reactive species with high redox potentials (E-0) (e.g., hydroxyl radical (HO center dot ), singlet oxygen (O-1(2)), sulfate radical (SO4 center dot-), and high-valent metals like iron(iv) (Fe(iv)), copper(iii) (Cu(iii)), and cobalt(iv) (Co(iv))). The use of single atom catalysts (SACs) in AOPs and water treatment technologies has appeared only recently. This review introduces the application of SACs in the activation of hydrogen peroxide and persulfate to produce reactive species in treatment processes. A significant part of the review is devoted to the mechanistic aspects of traditional AOPs and their comparison with those triggered by SACs. The radical species, SO4 center dot- and HO center dot , which are produced in both traditional and SACs-activated AOPs, have higher redox potentials than non-radical species, O-1(2) and high-valent metal species. However, SO4 center dot- and HO center dot radicals are non-selective and easily affected by components of water while non-radicals resist the impact of such constituents in water. Significantly, SACs with varying coordination environments and structures can be tuned to exclusively generate non-radical species to treat water with a complex matrix. Almost no influence of chloride, carbonate, phosphate, and NOM was observed on the performance of SACs in treating pollutants in water when nonradical species dominate. Therefore, the appropriately designed SACs represent game-changers in purifying water vs. AOPs with high efficiency and minimal interference from constituents of polluted water to meet the goals of water sustainability.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21000 - Nano-technology

Project

<a href="/en/project/EH22_008%2F0004587" target="_blank" >EH22_008/0004587: Technology Beyond Nanoscale</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Society Reviews

ISSN

0306-0012

e-ISSN

1460-4744

Volume of the periodical

52

Issue of the periodical within the volume

22

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

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UT code for WoS article

001085479500001

EID of the result in the Scopus database

2-s2.0-85175415452