申请人:Imam Abdulrahman Bin Faisal University
公开号:US20220089454A1
公开(公告)日:2022-03-24
A method for producing crystalline α-Fe2O3 nanoparticles involving ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The method involves preparing an aqueous extract from the seeds of a plant in the family Linacae and dropwise addition of the extract to the solution of an iron (III)-containing precursor. The method yields crystalline nanoparticles of α-Fe
2
O
3
having a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 250 m
2
/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. A method for the photocatalytic decomposition of organic pollutants using the nanoparticles is disclosed. An antibacterial composition containing the crystalline α-Fe
2
O
3
nanoparticles is also disclosed.