TY - JOUR
T1 - Exploring the potential of graphene oxide nanocomposite as a highly efficient photocatalyst for antibiotic degradation and pathogen inactivation
AU - Prakash, J.
AU - Venkataprasanna, K. S.
AU - Jayaraman, Venkatesan
AU - Dinesh, S.
AU - Bharath, G.
AU - Banat, Fawzi
AU - Mathapati, Santosh S.
AU - Venkatasubbu, G. Devanand
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/8
Y1 - 2023/8
N2 - The widespread use of antibiotics in human and veterinary medicine makes them an emerging contaminant in the aquatic environment. The degradation of antibiotics is essential for environmental remediation and requires low-cost, high-performance photocatalysts. In this work, water-dispersible, highly efficient Yttrium oxide/Nickel Oxide anchored Graphene Oxide (GO/Y2O3/NiO) ternary composites were fabricated via a facile hydrothermal procedure and photocatalytically active for the degradation of the antibiotics ciprofloxacin (CIP) and amoxicillin (AMOX) under visible light illumination. The formation of GO/Y2O3/NiO was confirmed by a variety of spectroscopic and microscopic techniques. GO/Y2O3/NiO ternary composite material exhibits 94.03 % degradation efficiency for CIP and 78% for AMOX, associated with a faster reaction rate and a longer response to visible light. In addition, the presence of GO in the ternary nanocomposite served as an electron conductor, leading to the production of superoxide and hydroxy radicals that have reduced band gap of 2.8 eV. A unique combination of GO /Y2O3/NiO nanocubes, nanorods and nanosheets enhanced the photocatalytic activity. In addition, GO/Y2O3/NiO exhibits high antibacterial and concentration-dependent cytotoxic properties. These studies demonstrated that GO/Y2O3/NiO nanocomposite photocatalysts have unique potential as both antibacterial and eco- friendly photocatalysts, which has great potential for use in photo nanotechnology.
AB - The widespread use of antibiotics in human and veterinary medicine makes them an emerging contaminant in the aquatic environment. The degradation of antibiotics is essential for environmental remediation and requires low-cost, high-performance photocatalysts. In this work, water-dispersible, highly efficient Yttrium oxide/Nickel Oxide anchored Graphene Oxide (GO/Y2O3/NiO) ternary composites were fabricated via a facile hydrothermal procedure and photocatalytically active for the degradation of the antibiotics ciprofloxacin (CIP) and amoxicillin (AMOX) under visible light illumination. The formation of GO/Y2O3/NiO was confirmed by a variety of spectroscopic and microscopic techniques. GO/Y2O3/NiO ternary composite material exhibits 94.03 % degradation efficiency for CIP and 78% for AMOX, associated with a faster reaction rate and a longer response to visible light. In addition, the presence of GO in the ternary nanocomposite served as an electron conductor, leading to the production of superoxide and hydroxy radicals that have reduced band gap of 2.8 eV. A unique combination of GO /Y2O3/NiO nanocubes, nanorods and nanosheets enhanced the photocatalytic activity. In addition, GO/Y2O3/NiO exhibits high antibacterial and concentration-dependent cytotoxic properties. These studies demonstrated that GO/Y2O3/NiO nanocomposite photocatalysts have unique potential as both antibacterial and eco- friendly photocatalysts, which has great potential for use in photo nanotechnology.
KW - Antibacterial
KW - Antibiotics
KW - Cytotoxicity
KW - GO/YO/NiO
KW - Photo degradation
UR - http://www.scopus.com/inward/record.url?scp=85163809782&partnerID=8YFLogxK
U2 - 10.1016/j.diamond.2023.110104
DO - 10.1016/j.diamond.2023.110104
M3 - Article
AN - SCOPUS:85163809782
SN - 0925-9635
VL - 137
JO - Diamond and Related Materials
JF - Diamond and Related Materials
M1 - 110104
ER -
