Prussian blue-based coagulant and microplastic coagulation method using the same
The present disclosure relates to a Prussian blue-based coagulant and a microplastic coagulation method using the same, which may effectively coagulate microplastics having a size of less than 20 μm or nanoplastics and implement an environmentally harmless coagulation process, and the Prussian blue-based coagulant according to the present disclosure refers to Prussian blue being used as a coagulant for microplastics present in a water-system environment.
1 . A microplastic coagulation method comprising:
placing a Prussian blue-based coagulant in a water-system environment with microplastics present in the water-system environment; and
coagulating the microplastics by using the Prussian blue-based coagulant under visible-light irradiation,
wherein the Prussian blue-based coagulant comprises Prussian blue or a Prussian blue analogue.
2 . The microplastic coagulation method according to claim 1 , wherein a chemical formula of the Prussian blue analogue is Me 1 Me 2 (CN 6 ), and
wherein Me 1 and Me 2 are different transition metals.
3 . The microplastic coagulation method according to claim 2 , wherein a pH of the water-system environment where the microplastics are present is neutral or alkaline.
4 . The microplastic coagulation method according to claim 1 , wherein a pH of the water-system environment where the microplastics are present is neutral or alkaline.