Photochemical transformation of hexachlorobenzene (HCB) in solid-water system: Kinetics, mechanism and toxicity evaluation.
Density functional theory
Hexachlorobenzene
Photodegradation
Reaction pathways
Reactive oxygen species
Silica gel
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
May 2022
May 2022
Historique:
received:
07
12
2021
revised:
19
01
2022
accepted:
04
02
2022
pubmed:
14
2
2022
medline:
16
3
2022
entrez:
13
2
2022
Statut:
ppublish
Résumé
As one of the first batch of persistent organic pollutants (POPs) included in Stockholm Convention, hexachlorobenzene (HCB) has attracted great attention because of its wide occurrence and great environmental risks. Considering the easy adsorption of HCB on solids and the complexity of natural particles, we systematically investigated the photodegradation of HCB on the surface of silica gel (SG) in aqueous solution in this work to reveal its fate in natural waters. Under mercury lamp irradiation, more than 90% of HCB loaded on SG could be removed after 240 min. Moreover, the effects of solution pH and water constituents were examined, and results showed that the presence of NO
Identifiants
pubmed: 35151701
pii: S0045-6535(22)00400-3
doi: 10.1016/j.chemosphere.2022.133907
pii:
doi:
Substances chimiques
Humic Substances
0
Water
059QF0KO0R
Hexachlorobenzene
4Z87H0LKUY
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
133907Informations de copyright
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