Preparation of graphene-ZrO2 nanocomposites by heat treatment and photocatalytic degradation of organic dyes.
ZrO2 nanoparticles were synthesized by combining a solution containing zinconyl chloride in distilled water with a NH4OH solution under microwave irradiation. Graphene and ZrO2 nanocomposites were synthesized in an electric furnace at 700 degrees C for 2 hours. The heated graphene-ZrO2 nanocomposites were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. In addition, UV-vis spectrophotometry was used to evaluate the heated graphene-ZrO2 nanocomposites as a catalyst in the photocatalytic degradation of organic dyes. The photocatalytic effect of the heated graphene-ZrO2 nanocomposites was compared with that of unheated graphene nanoparticles, heated graphene nanoparticles, and unheated graphene-ZrO2 nanocomposites in organic dyes (methylene blue, methyl orange, and rhodamine B) under ultraviolet light at 254 nm.
Department of Chemisty, Sahmyook University, Seoul 139-742, South Korea.
Bum Hwi
BH
Cho
Weon Bae
WB
Ko
D002384:Catalysis; D005456:Fluorescent Dyes / Q000737:chemistry* / Q000528:radiation effects*; D006108:Graphite / Q000737:chemistry* / Q000528:radiation effects; D006358:Hot Temperature; D008027:Light; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D009930:Organic Chemicals / Q000737:chemistry* / Q000528:radiation effects*; D010316:Particle Size; D015040:Zirconium / Q000737:chemistry* / Q000528:radiation effects
D005456:Fluorescent Dyes; D009930:Organic Chemicals; D006108:Graphite; D015040:Zirconium; C028541:zirconium oxide