Fig. 6
From: Modified bentonite @ microwave for Mn(VII) removal with a simulation study

SEM image: (a) Natural bentonite, (b) microwave-treated bentonite (MTB), and (c) microwave-treated bentonite-Mn(VII) adsorption.
From: Modified bentonite @ microwave for Mn(VII) removal with a simulation study

SEM image: (a) Natural bentonite, (b) microwave-treated bentonite (MTB), and (c) microwave-treated bentonite-Mn(VII) adsorption.