Figure 6 | Scientific Reports

Figure 6

From: Cationic cellulose filter papers modified with ZnO/Ag/GO nanocomposite as point of use gravity-driven filters for bacterial removal from water

Figure 6

(a) Antibacterial assays of the unmodified and modified papers with disk diffusion tests against E. coli. Ampicillin and an empty disc were used as positive and negative controls, respectively. Bacterial removal efficiency of the unmodified and modified papers, due to gravity, using various numbers of papers. (b) PDA modified papers. (c) PDA/PEI modified papers. (d) ZnO/Ag/GO@PDA/PEI modified papers. Error bars exhibit the standard deviation from three calculations. Some error bars are too small to be observed.

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