Fig. 1
From: Modified bentonite @ microwave for Mn(VII) removal with a simulation study

FTIR spectrum of (a) raw bentonite, (b) microwave-treated bentonite, (c) microwave-treated bentonite after Mn(VII) ion adsorption.
From: Modified bentonite @ microwave for Mn(VII) removal with a simulation study

FTIR spectrum of (a) raw bentonite, (b) microwave-treated bentonite, (c) microwave-treated bentonite after Mn(VII) ion adsorption.