Meishen
Meishen Magnesium oxide
(MgO) has the advantages of abundant raw materials, non-toxic and colorless,
simple antibacterial conditions, and can effectively kill bacteria in the light
conditions.As a new inorganic antibacterial material, magnesium oxide has broad
application prospects and market value.At the same time, some studies showed
that MgO had strong antibacterial ability against gram-positive/negative
bacteria and spores.When the MgO particle size is down to the nanometer order,
the surface of nanometer magnesium oxide will produce a large number of
defects, which makes nanometer MgO have strong adsorption capacity and
catalytic activity.
Secondly,
these defects will also produce a large number of reactive oxygen ion O2-,
which makes the nano MgO have the ability to inhibit bacteria, kill bacteria
and decompose some compounds.Compared with sol-gel method, the sample size of
magnesium oxide prepared by liquid precipitation method is relatively small and
the dispersion is better.At the same time, magnesium oxide prepared by liquid
precipitation method and sol-gel method had certain bactericidal effect on
escherichia coli, but magnesium oxide prepared by sol-gel method had obvious
bactericidal effect on escherichia coli, with a diameter of 14.2mm.