Figures S1 - S5 from Preparation of core–shell structured CaCO3 microspheres as rapid and recyclable adsorbent for anionic dyes

N2 adsorption/desorption isotherms and pore-size distribution (inset) of the obtained core-shell structured CaCO3 MSs; TG analysis of Hesp (a), pure CaCO3 without Hesp and the obtained core-shell structured CaCO3 MSs (b).; SEM image of the CaCO3 MSs after 5 recycling experiments.; N2 adsorption/desorption isotherms and pore-size distribution (inset) of the CaCO3 MSs after 5 recycling experiments.; Three-dimensional histogram of the dye adsorption efficiency on the CaCO3 MSs in 6-10th cycles of the adsorption-desorption.