Fig. 5From: Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride Decontaminationa The absorption intensity of TCH before and after degradation and (b) removal efficiency under different pH. c The time-dependent absorption intensity of TCH and pH variation under unbuffered condition. d Comparison of removal efficiency of TCH under buffered and unbuffered conditions. (Conditions: 20 slices of MnO2 NPs/ESM, the initial concentration of TCH was 50 mg/L.)Back to article page