Effect of Mg doping on morphology, photocatalytic activity and related biological properties of Zn1-xMgxO nanoparticles

Authors : Bestenur YALCİN, Dogan AKCAN, Ibrahim Ertugrul YALCİN, Mehmet Can ALPHAN, Kenan SENTURK, Ibrahim Ilker OZYİGİT, Lutfi ARDA

Pages : 1177-1199

View : 25 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The objective of this study is to synthesize ZnO and Mg doped ZnO insert ignore into journalissuearticles values(Zn1-xMgxO); nanoparticles via the sol-gel method, and characterize their structures and to investigate their biological properties such as antibacterial activity and hemolytic potential.Nanoparticles insert ignore into journalissuearticles values(NPs); were synthesized by the sol-gel method using zinc acetate dihydrate insert ignore into journalissuearticles values(Zninsert ignore into journalissuearticles values(CH3COO);insert ignore into journalissuearticles values(2); .2Hinsert ignore into journalissuearticles values(2);O); and magnesium acetate tetrahydrate insert ignore into journalissuearticles values(Mginsert ignore into journalissuearticles values(CH3COO);insert ignore into journalissuearticles values(2); .4Hinsert ignore into journalissuearticles values(2);O); as precursors. Methanol and monoethanolamine were used as solvent and sol stabilizer, respectively. Structural and morphological characterizations of Zn1-xMgxO nanoparticles were studied by using XRD and SEM-EDX, respectively. Photocatalytic activities of ZnO and selected Mg-doped ZnO insert ignore into journalissuearticles values(Zn1-xMgxO); nanoparticles were investigated by degradation of methylene blue insert ignore into journalissuearticles values(MeB);. Results indicated that Mg doping insert ignore into journalissuearticles values(both 10% and 30%); to the ZnO nanoparticles enhanced the photocatalytic activity and a little amount of Zn0.90Mg0.10O photocatalyst insert ignore into journalissuearticles values(1.0 mg/mL); degraded MeB with 99% efficiency after 24 h of irradiation under ambient visible light. Antibacterial activity of nanoparticles versus Escherichia coli insert ignore into journalissuearticles values(E. coli); was determined by the standard plate count method. Hemolytic activities of the NPs were studied by hemolysis tests using human erythrocytes. XRD data proved that the average particle size of nanoparticles was around 30 nm. Moreover, the XRD results indicated that the patterns of Mg doped ZnO nanoparticles related to ZnO hexagonal wurtzite structure had no secondary phase for x <= 0.2 concentration. For 0 <= x <= 0.02, NPs showed a concentration dependent antibacterial activity against E. coli. While Zn0.90Mg0.10O totally inhibited the growth of E. coli, upper and lower dopant concentrations did not show antibacterial activity.
Keywords : Sol gel method, Mg doped ZnO, hemolytic activity, antibacterial properties, E coli