Abstract: The disclosure relates to a metal phenolic network (MPN) composition for treating algae in an aqueous environment, in particular to entrap/capture, flocculate, and settle or otherwise remove the algae from a location where it damages the aqueous environment and/or harms organisms in the aqueous environment. The MPN composition includes a metal phenolic network (MPN) film and a secondary flocculant such as a clay material or ionic flocculant. Application of the MPN composition to an aqueous environment, for example a marine environment containing a harmful algal bloom (HAB) induces flocculation of the algae with the MPN composition and sedimentation of the resulting floc. Algae removed from a surface region of the aqueous environment in this way eventually kills the algae at least due to a lack of sunlight, and reduces or eliminates the ability of the algae to further damage the aqueous environment until its eventual death.

Abstract: The disclosure relates to a metal phenolic network (MPN) composition for treating algae in an aqueous environment, in particular to entrap/capture, flocculate, and settle or otherwise remove the algae from a location where it damages the aqueous environment and/or harms organisms in the aqueous environment. The MPN composition includes a metal phenolic network (MPN) film and a secondary flocculant such as a clay material or ionic flocculant. Application of the MPN composition to an aqueous environment, for example a marine environment containing a harmful algal bloom (HAB) induces flocculation of the algae with the MPN composition and sedimentation of the resulting floc. Algae removed from a surface region of the aqueous environment in this way eventually kills the algae at least due to a lack of sunlight, and reduces or eliminates the ability of the algae to further damage the aqueous environment until its eventual death.