Fig. 6From: Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride DecontaminationThe time-dependent a absorption intensity of TCH and b removal efficiency by different amounts of MnO2 NPs/ESM treatment. c Linear first-order kinetic plots and d linear second-order kinetic plots by different amounts of MnO2 NPs/ESM treatment. (Conditions: initial concentration of TCH was 50 mg/L, controlled pH was 3.0)Back to article page