The present study was aimed to green synthesize of α-Fe_(2)O_(3)nanoparticles(NPs)using flower extract of Musa acuminata and examination of their antibacterial and photocatalytic activities.The synthesized NPs were i...The present study was aimed to green synthesize of α-Fe_(2)O_(3)nanoparticles(NPs)using flower extract of Musa acuminata and examination of their antibacterial and photocatalytic activities.The synthesized NPs were investigated using UV-visible spectroscopy,which exhibited a colour change pattern,and the maximum absorption peak at 265 nm confirmed the formation of α-Fe_(2)O_(3)NPs.The FTIR analysis showed the presence of various functional groups coated over the synthesizedα-Fe_(2)O_(3)NPs.The XRD pattern showed that the formation of rhombohedral structure with an average crystallite size was 21.86 nm.FESEM micrographs revealed that α-Fe_(2)O_(3)NPs were roughly spherical in shape.EDX spectrum confirmed the presence of Fe and O elements.By TEM analysis,the average particle size was calculated to be 32 nm.Using the well diffusion method,the antibacterial activity of α-Fe_(2)O_(3)NPs was tested against both gram positive and negative bacterial strains of Staphylococcus aureus(S.aureus)and Escherichia coli(E.coli).The NPs exhibited good antibacterial activity against the tested bacteria.Finally,the synthesized α-Fe_(2)O_(3)NPs demonstrated the photocatalytic degradation of Crystal Violet(CV)dye under sunlight.The efficiency of degradation within 150 min was determined to be 90.27%for CV.This effective removal method under sunlight may support a cost-effective method for degradation of CV dyes from wastewater.展开更多
文摘The present study was aimed to green synthesize of α-Fe_(2)O_(3)nanoparticles(NPs)using flower extract of Musa acuminata and examination of their antibacterial and photocatalytic activities.The synthesized NPs were investigated using UV-visible spectroscopy,which exhibited a colour change pattern,and the maximum absorption peak at 265 nm confirmed the formation of α-Fe_(2)O_(3)NPs.The FTIR analysis showed the presence of various functional groups coated over the synthesizedα-Fe_(2)O_(3)NPs.The XRD pattern showed that the formation of rhombohedral structure with an average crystallite size was 21.86 nm.FESEM micrographs revealed that α-Fe_(2)O_(3)NPs were roughly spherical in shape.EDX spectrum confirmed the presence of Fe and O elements.By TEM analysis,the average particle size was calculated to be 32 nm.Using the well diffusion method,the antibacterial activity of α-Fe_(2)O_(3)NPs was tested against both gram positive and negative bacterial strains of Staphylococcus aureus(S.aureus)and Escherichia coli(E.coli).The NPs exhibited good antibacterial activity against the tested bacteria.Finally,the synthesized α-Fe_(2)O_(3)NPs demonstrated the photocatalytic degradation of Crystal Violet(CV)dye under sunlight.The efficiency of degradation within 150 min was determined to be 90.27%for CV.This effective removal method under sunlight may support a cost-effective method for degradation of CV dyes from wastewater.
