Correction to: Scientific Reports https://doi.org/10.1038/s41598-020-65095-w, published online 20 May 2020

This Article contains an error.

As a result of an error during figure assembly, the SEM image of 250 nm Fe3O4 NRs in Figure 2d is a duplication of the SEM image of 250 nm FeOOH NRs in Figure 1d.

The corrected Figure 2 and its accompanying legend appear below.

Fig. 2
figure 2

The structure and morphology of Fe3O4 samples. (a) XRD patterns of Fe3O4. (bd) SEM images of 460 nm, 350 nm and 250 nm Fe3O4 NRs, respectively.