Pyrolytic formation and photoactivity of reactive oxygen species in a SiO (2)/carbon nanocomposite from kraft lignin

SiO (2) and carbon produced by kraft lignin pyrolyzed at 600°C can generate stable reactive oxygen species (ROS) by reaction with atmospheric oxygen. In this study, we systematically investigate the photochemistry of peroxyl radicals in carbon-supported silica (PCS) and assess its effects on the met...

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Detalles Bibliográficos
Autores principales: Vadivel, Dhanalakshmi, Malaichamy, Ilanchelian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: F1000 Research Limited 2018
Materias:
Research Note
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6464069/
https://www.ncbi.nlm.nih.gov/pubmed/31001411
http://dx.doi.org/10.12688/f1000research.16080.1
Descripción
Sumario:SiO (2) and carbon produced by kraft lignin pyrolyzed at 600°C can generate stable reactive oxygen species (ROS) by reaction with atmospheric oxygen. In this study, we systematically investigate the photochemistry of peroxyl radicals in carbon-supported silica (PCS) and assess its effects on the methylene blue (MB) photodegradation. Characterization revealed that the higher ROS generation ability of SiO (2)/carbon under UV light irradiation was attributed to its abundant photoactive surface-oxygenated functional groups.

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