Simultaneous preparation of ZnO/rGO composites through Zn(OH)2 decomposition and graphite oxide reduction and their photocatalytic properties.
Environ Sci Pollut Res Int
; 31(3): 4881-4896, 2024 Jan.
Article
in En
| MEDLINE
| ID: mdl-38108986
ABSTRACT
ZnO/reduced graphite oxide (rGO) composites were simultaneously prepared by the thermal reduction of graphite oxide (GO) and the decomposition of Zn(OH)2. The samples were characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, photoluminescence, and DRS. Results indicate that Zn(OH)2 was heated and decomposed into ZnO at a low temperature (200 â), while GO was reduced to graphene. The synthesized ZnO particles were small and loaded on graphene layers. The ZnO/rGO photocatalysts exhibited excellent photocatalytic activity against methylene blue (MB) under simulated sunlight irradiation. The ZnO/50% rGO photocatalyst showed the best MB photodegradation rate of up to 99.7% within 3 min. Synchronous reaction provided an efficient, simple, and fast preparation method for ZnO/rGO composites, with an excellent solar photocatalytic degradation ability.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Zinc Oxide
/
Graphite
Language:
En
Journal:
Environ Sci Pollut Res Int
/
Environ. sci. pollut. res. int. (Internet)
/
Environmental science and pollution research international (Internet)
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2024
Document type:
Article
Country of publication:
Germany