Fig. 2From: Factors governing cesium adsorption of charcoals in aqueous solutionIR-PA spectra in the 3600–800 cm−1 region for a Japanese oak charcoal (OC), b OC after 4 times water extraction (4WE-OC), c mangrove charcoal (MC), d MC after 4 times water extraction (4WE-MC), e bincho charcoal (BC), and f BC after 4 times water extraction (4WE-BC)Back to article page